Solar reflective asphalt compositions

Abstract

Asphalt-based slurry seal base compositions comprising asphalt emulsion, water, polymer emulsion, and solar reflective additive are provided, where the asphalt-based slurry seal base compositions are free of aggregate. In some embodiments, solar reflective additive includes titanium oxide (TiO2) particles. In some embodiments, solar reflective additive includes infrared reflective dark pigment. Kits including asphalt-based slurry seal base composition comprising asphalt emulsion, water, polymer emulsion, and solar reflective additive are also provided. In some embodiments, kits include instructions for mixing the base composition with an aggregate to obtain an asphalt-based slurry seal composition, and instructions for applying the slurry seal composition to an asphalt surface.

Description

SOLAR REFLECTIVE ASPHALT COMPOSITIONSCROSS REFERENCE TO RELATED APPLICATIONS

[0001] This application claims priority to U.S. Provisional Patent Application Serial No. 63 / 550,751, filed February 7, 2024, which is hereby incorporated by reference in its entirety.TECHNICAL FIELD

[0002] The field of disclosure relates to asphalt-based compositions comprising solar reflective additives, particularly where the asphalt-based compositions are free of an aggregate.BACKGROUND

[0003] The technology to which the present disclosure is directed relates to a sealer used for asphalt substrates, such as a sealer for asphalt of the type employed extensively throughout the United States. Pavement technology has developed a series of asphalt coating compositions. Many of the asphalt compositions have been applied to asphalt, sometimes as a protective coating and sometimes as a re-cover system. Such asphalt mixtures have little or no reflectivity in that they are typically black in color, are not solar reflective, do not reduce surface temperatures, and do not reduce pollutants.

[0004] However, it has been found that conventional dark pavements rapidly increase in temperature when exposed to sunlight because they absorb 80-95% of the sunlight and significantly contribute to the creation of heat islands. Heat islands are built up areas that are hotter than nearby rural areas. For example, the annual mean air temperature of a city with one million people or more can be 1.8-5.4 °F (1-3 °C) warmer than its surroundings. In the evening, the difference can be as high as 22 °F (12 °C). Heat islands can affect communities by increasing summertime peak energy demand, air conditioning costs, air pollution and greenhouse gas emissions, heat-related illness and mortality, and water quality. According to Akbari et al., hot pavements aggravate urban heat islands by warming the local air and contribute to global warming by radiating heat into the atmosphere. As pavements comprise about one third of urban surfaces, they are a significant source of heat in urban environments (Akbari H, Rose LS, Taha H. 1999. Characterizing the fabric of the urban environment: A case study of Sacramento, California. Lawrence Berkeley National Laboratory). Moreover,hot pavement can also raise the temperature of storm water runoff, which can cause additional negative impacts. Thus, there exists a real need for lowering asphalt surface temperatures.

[0005] In addition, vehicles traveling on asphalt surfaces have been known to produce significant levels of pollutants. While pollutants have long been known to have a negative environmental impact, photocatalytic air cleaning has also been shown to remove polutants including nitrogen oxides (NOx) and volatile organic compounds (VOCs) from polluted urban air, and, consequently, for reducing concentrations of toxic and irritating ozone, a key constituent of smog that forms on hot, sunny days.

[0006] Thus, there is a need for technology that reduces asphalt surface temperatures and reduces pollutants via photocatalytic reactions.SUMMARY

[0007] Given the above background, there is a need for asphalt coating compositions that are highly solar reflective, reduce surface temperatures, and reduce pollutants via photocatalytic reactions. For example, there is a need in the art for improved asphalt coating compositions and methods for applying the same to mitigate the effects of increased surface temperature and pollution due to vehicle traffic in urban environments, such as aggravated heat islands, contributions to global warming, and increased temperatures of storm water runoff.

[0008] The present disclosure addresses the shortcomings identified in the art by providing improved, high-performance asphalt-based slurry seal base compositions comprising solar reflective additives, including but not limited to titanium oxide (TiCh) particles and / or infrared reflective dark pigments (e.g., IR black). In some embodiments, the asphalt-based slurry seal base composition is highly solar reflective and reduces asphalt surface temperatures and pollutants. In some embodiments, the asphalt-based slurry seal base composition is free of an aggregate. In some implementations, the asphalt-based slurry seal base composition is free of an aggregate and can be mixed with an aggregate to form an asphalt-based slurry seal composition for application to an asphalt surface. In some embodiments, mixture of the asphalt-based slurry seal base composition is performed at point of use (e.g., at or near an application site) prior to application.

[0009] In some embodiments, the asphalt-based slurry seal base compositions are provided as a kit, optionally including instructions for mixing the asphalt-based slurry sealbase composition with an aggregate to obtain an asphalt-based slurry seal composition, and optionally including instructions for applying the asphalt-based slurry seal composition to an asphalt surface. In some embodiments, the kit further includes aggregate for mixing with the asphalt-based slurry seal base composition.

[0010] Accordingly, in one aspect, the present disclosure provides an asphalt-based slurry seal base composition comprising an asphalt emulsion, water, a polymer emulsion, and a solar reflective additive, where the asphalt-based slurry seal base composition is free of an aggregate. In some embodiments, the solar reflective additive comprises a plurality of titanium oxide (TiCh) particles present in an amount of from about 5% to about 60% by weight. In some embodiments, the solar reflective additive comprises an infrared reflective dark pigment present in an amount of from about 0.001% to about 50% by weight.

[0011] Another aspect of the present disclosure provides a kit, comprising: an asphaltbased slurry seal base composition comprising an asphalt emulsion, water, a polymer emulsion, and a solar reflective additive; instructions for mixing the asphalt-based slurry seal base composition with an aggregate, thereby obtaining an asphalt-based slurry seal composition; and instructions for applying the asphalt-based slurry seal composition to an asphalt surface. In some embodiments, the asphalt-based slurry seal base composition is free of an aggregate. In some embodiments, the applying the asphalt-based slurry seal composition to an asphalt surface is performed at point of use. In some embodiments, the mixing the asphalt-based slurry seal base composition with an aggregate is performed at point of use. In some embodiments, the kit further includes aggregate.

[0012] Another aspect of the present disclosure provides an asphalt-based slurry seal base composition comprising an asphalt emulsion, water, and an amount of a solar reflective additive, where the asphalt-based slurry seal base composition is free of an aggregate. In some embodiments, the composition further includes a polymer emulsion.

[0013] Yet another aspect of the present disclosure provides an asphalt-based slurry seal base composition comprising an asphalt emulsion, water, and a plurality of titanium oxide (TiCh) particles present in an amount of about 5% to about 60% by weight. In some embodiments, the asphalt-based slurry seal base composition is free of an aggregate. In some embodiments, the composition further includes a polymer emulsion.

[0014] Still another aspect of the present disclosure provides an asphalt-based slurry seal base composition comprising an asphalt emulsion, water, and an infrared reflective darkpigment present in an amount of about 5% to about 60% by weight. In some embodiments, the asphalt-based slurry seal base composition is free of an aggregate. In some embodiments, the composition further includes a polymer emulsion.

[0015] In some embodiments, the present technology relates to asphalt coating compositions and methods thereof for the treatment of any asphalt surface including but not limited to roads, playgrounds, parks, parking lots, driveways, residential areas, schools, bike paths, shade structures, roofing, and / or LEED -certified building projects.INCORPORATION BY REFERENCE

[0016] All references cited herein are incorporated herein by reference in their entirety and for all purposes to the same extent as if each individual publication or patent or patent application was specifically and individually indicated to be incorporated by reference in its entirety for all purposes. In the event of a conflict between a term herein and a term in an incorporated reference, the term herein controls.BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The implementations disclosed herein are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings. Like reference numerals refer to corresponding parts throughout the several views of the drawings.

[0018] FIG. 1 illustrates example asphalt-based slurry seal compositions comprising asphalt-based slurry seal base composition mixed with aggregate and added water at varying proportions (percent by weight), in accordance with an embodiment of the present disclosure, where increasing amounts of the base composition are shown along the x-axis (left to right) and increasing amounts of added water are shown along the y-axis (top to bottom).DETAILED DESCRIPTION

[0019] I. Definitions and Abbreviations

[0020] As used herein, the terms “about” or “approximately” refer to an acceptable error range for a particular value as determined by one of ordinary skill in the art, which can depend in part on how the value is measured or determined, e.g., the limitations of the measurement system. For example, “about” can mean within 1 or more than 1 standard deviation, per the practice in the art. “About” can mean a range of ±20%, ±10%, ±5%, or ±1% of a given value. The term “about” or “approximately” can mean within an order ofmagnitude, within 5-fold, or within 2-fold, of a value. Where particular values are described in the application and claims, unless otherwise stated the term “about” meaning within an acceptable error range for the particular value should be assumed. The term “about” can have the meaning as commonly understood by one of ordinary skill in the art. The term “about” can refer to ±10%. The term “about” can refer to ±5%.

[0021] Where a range of values is provided, it is understood that each intervening value, to the tenth of the unit of the lower limit unless the context clearly dictates otherwise, between the upper and lower limit of that range and any other stated or intervening value in that stated range, is encompassed within the present disclosure. The upper and lower limits of these smaller ranges may independently be included in the smaller ranges and are also encompassed within the present disclosure, subject to any specifically excluded limit in the stated range. Where the stated range includes one or both of the limits, ranges excluding either or both of those included limits are also included in the present disclosure. For example, as used herein, the term “between” used in a range is intended to include the recited endpoints. For example, a number “between X and Y” can be X, Y, or any value from X to Y.

[0022] As used herein, the singular forms “a,” “an,” and “the” include the plural forms as well, unless the context clearly dictates otherwise. It is further noted that the claims may be drafted to exclude any optional element. As such, this statement is intended to serve as antecedent basis for use of such exclusive terminology as “solely,” “only,” and the like in connection with the recitation of claim elements, or for use of a “negative” limitation. Furthermore, to the extent that the terms “including,” “includes,” “having,” “has,” “with,” or variants thereof are used in either the detailed description and / or the claims, such terms are intended to be inclusive in a manner similar to the term “comprising.”

[0023] As used herein, the term “asphalt” or “oil” refers to a bituminous material that is a constituent of petroleum. Asphalt is frequently used as a paving agent, typically in surface applications. Asphalt may be found naturally or manufactured (e.g., refined) from petroleum, and can take a viscous, liquid form e.g., at high temperatures), semi-solid form (e.g., at room temperature), or solid form. As used herein, the term “asphalt emulsion” refers to liquid asphalt that has been emulsified in water. In some embodiments, an asphalt emulsion further comprises an emulsifying agent (e.g., a surfactant). Typically, an asphalt emulsion consists of from about 40% to about 85% asphalt (e.g., from about 50% to about 75% asphalt). In some embodiments, an asphalt emulsion comprises additional components, including latex,polymers, acids, and / or other additives to further modify the physical or structural characteristics of the emulsion. See, for example, Asphalt Paving Association of Iowa, “Asphalt Paving Design Guide,” available on the Internet at apai.net / Files / content / DesignGuide / AsphaltCompositeSmFst.pdf.

[0024] As used herein, the term “aggregate” refers to any hard, inert, mineral material used for mixing in graduated fragments. In some embodiments, aggregate can comprise gravel, crushed stone, slag, glass, rubber, and / or other suitable materials not otherwise classified herein or of a finer or coarser grade than those classified herein. In some instances, aggregates function to provide strength and load support in asphalt-based compositions after application and compacting. Aggregate particles can be course, fine, graded, dense, and / or open, depending on the method of production or selection of aggregate materials.

[0025] As used herein, the term “extender” or “filler” refers to a component of asphaltbased compositions used to modulate the consistency of the respective composition. For example, in some embodiments, an extender is used to stiffen or toughen asphalt binder in an asphalt-based composition. In some instances, an extender is used to improve the adhesion of the asphalt emulsion to the aggregate, to promote dispersion of the asphalt emulsion in the asphalt-based composition, increase the stiffness of the composition, accelerate the curing of compacted mixture ( .g., after application), and / or reduce stripping or moisture damage in the applied asphalt-based composition. In some embodiments, the extender comprises material that is of a similar or identical substance as that contained in the aggregate. In some embodiments, the extender refers to a portion of aggregate that is suspended in an asphalt binder without a particle-particle contact.

[0026] The terms “Solar Reflectivity” “reflectance” and “R” refer to the ability of a material to reflect solar energy from its surface back into the atmosphere. The SR value is a number from 0 to 1.0. A value of 0 indicates that the material absorbs all solar energy and a value of 1.0 indicates total reflectance.

[0027] The terms “Solar Reflectance Index” and “SRI” refer to the index used for compliance with LEED requirements and is calculated according to ASTM E 1980 using values for reflectance and emissivity. Emissivity is a material’s ability to release absorbed energy.

[0028] The abbreviations used herein generally have their conventional meaning and are readily appreciated by those skilled in the art. Unless defined otherwise, all technical andscientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present disclosure relates. Although any methods and materials similar or equivalent to those described herein can also be used in the practice or testing of the present disclosure, representative illustrative methods and materials are now described.

[0029] As will be apparent to those of skill in the art upon reading this disclosure, each of the individual embodiments described and illustrated herein has discrete components and features which may be readily separated from or combined with the features of any of the other several embodiments without departing from the scope or spirit of the present disclosure. For instance, any of the compositions provided herein may be substituted, modified, added, subtracted, and / or combined with any suitable component of asphalt-based slurry seal base compositions, and / or slurry seal compositions comprising the same, as will be apparent to one skilled in the art. Any recited method can be carried out in the order of events recited or in any other order which is logically possible.

[0030] IL Introduction

[0031] As described above, there is a need for asphalt-based coating compositions that are highly solar reflective, reduce surface temperatures, and reduce pollutants.

[0032] Accordingly, the present disclosure provides improved compositions, as well as formulations containing such compositions or combinations of these compositions and methods for applying such compositions, which can be used for, among other things, treating an asphalt surface. For example, one aspect of the present disclosure provides asphalt-based slurry seal base compositions that exhibit solar reflective and photocatalytic activity. For example, in some embodiments, the asphalt-based slurry seal base composition is highly solar reflective with a Solar Reflective Index number of at least about 30 or at least about 35. In addition, in some embodiments, the asphalt-based slurry seal base composition has a Solar Reflectivity number of at least about 0.30 or at least about 0.35.

[0033] Advantageously, in some embodiments, the asphalt-based slurry seal base composition is capable of reducing surface temperatures of asphalt treated with the asphaltbased slurry seal base composition relative to asphalt not treated with asphalt-based slurry seal base composition. Furthermore, in some embodiments, the asphalt-based slurry seal base composition reduces atmospheric pollutants via photocatalytic reactions, including such pollutants as nitrogen oxides (NOx) and volatile organic compounds (VOC).

[0034] In addition to the benefits identified above, in some embodiments, the present disclosure provides asphalt coatings that improve upon various preparation, application, durability, storage and safety properties over conventional asphalt and asphalt coatings.

[0035] For instance, in some implementations, the asphalt-based slurry seal base composition disclosed herein has improved durability and longevity after application to an asphalt surface. Advantageously, and without being limited to any one theory of operation, such compositions overcome the limitations of conventional formulations for asphalt-based slurry seal compositions in that compositions that exhibit solar reflective and photocatalytic activity also exhibit increased durability, resulting in a need for fewer treatments, and in turn using fewer resources and labor.

[0036] In some implementations, the asphalt-based slurry seal base composition can be mixed with aggregate of any size, including aggregates of large particle size (e. ., particle size mesh of from about mesh number 20 to about 1 inch) or of smaller particle size (e.g., particle size mesh of from about mesh number 300 to about mesh number 20). Advantageously, such versatility allows for the use of the asphalt-based slurry seal base composition for use in commercial or high-throughput applications (e.g., roadwork) and / or for individual use (e.g., home or “DIY” use). In some implementations, the asphalt-based slurry seal base composition is provided in a pailed or toted form, lending further advantages to the composition’s versatility and availability (e.g., via ease of storage and user accessibility).

[0037] Additionally, while thick enough to allow for long storage times, the presently disclosed asphalt-based slurry seal base compositions are thin enough to be applied without clogging. As such, the presently disclosed asphalt-based slurry seal base compositions are stable during storage (e.g., in a vessel such as a can), during application (e.g., via pumping, squeegeeing, or spraying), and after application (e.g, while drying on a surface). In particular, compositions including the asphalt-based slurry seal base compositions (e.g., an asphalt-based slurry seal composition after mixing the base composition with aggregate) are capable of behaving like a solid under low shear or minimal external forces (e.g., such that it will not run off the road into the sewers) and like a liquid under some mechanical force, allowing it to also flow, e.g., to be sprayed or pumped, during application.

[0038] The presently disclosed asphalt-based slurry seal base compositions also provide improved anti-skid properties to surfaces after application. For instance, compositionsincluding the asphalt-based slurry seal base compositions e.g., an asphalt-based slurry seal composition after mixing the base composition with aggregate) can achieve a skid number (SN40R) of at least 30, at least 35, or at least 40. In some implementations, compositions including the asphalt-based slurry seal base compositions (e.g., an asphalt-based slurry seal composition after mixing the base composition with aggregate) achieve a dynamic friction test (DFT) value of at least 0.35, at least 0.40, or at least 0.45.

[0039] In some embodiments, the present technology has wide applicability, in particular for the treatment of any asphalt surface, including but not limited to roads, playgrounds, parks, parking lots, driveways, recreational facilities, outdoor facilities, residential areas, schools, bike paths, shade structures, roofing, and / or LEED-certified building projects.

[0040] III. Asphalt-based slurry seal base compositions

[0041] One aspect of the present disclosure provides an asphalt-based slurry seal base composition comprising an asphalt emulsion, water, a polymer emulsion, and a solar reflective additive, where the asphalt-based slurry seal base composition is free of an aggregate.

[0042] In some embodiments, the solar reflective additive comprises titanium oxide (TiO2) particles. In some embodiments, the solar reflective additive comprises a plurality of titanium oxide (TiCh) particles present in an amount of from about 5% to about 60% by weight. Suitable non-limiting embodiments for TiCh particles contemplated for use in the present disclosure are described elsewhere herein, for example, in the section entitled “Titanium oxide,” below. In some embodiments, the solar reflective additive comprises a pigment, such as an infrared reflective dark pigment. Alternatively or additionally, in some embodiments, the solar reflective additive comprises an infrared reflective dark pigment present in an amount of from about 0.001% to about 50% by weight. Suitable non-limiting embodiments for pigments, including infrared reflective dark pigments, contemplated for use in the present disclosure are described elsewhere herein, for example, in the section entitled “IV. Reflectance of asphalt-based slurry seal base composition,” below.

[0043] In some embodiments, the asphalt-based slurry seal base composition is free of aggregate or fines, including but not limited to clay, sand, extenders (e.g., fillers), and / or fiber. In some embodiments, the asphalt-based slurry seal base composition comprises one or more additives, including but not limited to biocides, colorants, dispersants, plasticizers, and / or dirt-resistance additives. Example non-limiting embodiments for additivescontemplated for use in the present disclosure are disclosed, for example, in the sections entitled “Biocide,” “Dispersants,” “Plasticizer,” “Dirt-Resistance Additives,” and “IV. Reflectance of asphalt-based slurry seal base composition,” below.

[0044] One skilled in the art will appreciate that other combinations of components and any proportions thereof for the asphalt-based slurry seal base compositions, slurry seal compositions, and / or kits thereof, are possible, as disclosed further herein.

[0045] For instance, another aspect of the present disclosure provides an asphalt-based slurry seal base composition comprising an asphalt emulsion, water, and an amount of a solar reflective additive, where the asphalt-based slurry seal base composition is free of an aggregate. In some embodiments, the base composition further includes a polymer emulsion. In some embodiments, the solar reflective additive is selected from the group consisting of titanium oxide (TiCh) particles and infrared reflective dark pigment. In some embodiments, the solar reflective additive comprises a plurality of titanium oxide (TiCh) particles present in an amount of from about 5% to about 60% by weight. Alternatively or additionally, in some embodiments, the solar reflective additive comprises an infrared reflective dark pigment present in an amount of from about 0.001% to about 50% by weight. In some embodiments, the asphalt emulsion is cationic. In some embodiments, the asphalt emulsion is present in an amount of from about 5% to about 40% by weight, the water is present in an amount of from about 15% to about 45% by weight, and the polymer emulsion is present in an amount of from about 1% to about 35% by weight.

[0046] Yet another aspect of the present disclosure provides an asphalt-based slurry seal base composition comprising an asphalt emulsion, water, and a plurality of titanium oxide (TiCh) particles present in an amount of about 5% to about 60% by weight. In some embodiments, the asphalt-based slurry seal base composition is free of an aggregate. In some embodiments, the base composition further includes a polymer emulsion. In some embodiments, the asphalt emulsion is cationic. In some embodiments, the asphalt emulsion is present in an amount of from about 5% to about 40% by weight, the water is present in an amount of from about 15% to about 45% by weight, and the polymer emulsion is present in an amount of from about 1% to about 35% by weight.

[0047] Still another aspect of the present disclosure provides an asphalt-based slurry seal base composition comprising an asphalt emulsion, water, and an infrared reflective dark pigment present in an amount of about 5% to about 60% by weight. In some embodiments,the asphalt-based slurry seal base composition is free of an aggregate. In some embodiments, the base composition further includes a polymer emulsion. In some embodiments, the asphalt emulsion is cationic. In some embodiments, the asphalt emulsion is present in an amount of from about 5% to about 40% by weight, the water is present in an amount of from about 15% to about 45% by weight, and the polymer emulsion is present in an amount of from about 1% to about 35% by weight.

[0048] Titanium oxide

[0049] In some embodiments, the asphalt-based slurry seal base composition comprises titanium oxide particles.

[0050] In some embodiments, the titanium oxide (TiCh) particles are present in the composition in an amount of from about 10% to about 60% by weight.

[0051] In some embodiments, the TiCh particles are present in an amount of from about 18% to about 60% by weight. In some embodiments, the TiCh particles are present in an amount of from about 18% to about 50% by weight. In some embodiments, the TiCh particles are present in an amount of from about 18% to about 40% by weight. In some embodiments, the TiCh particles are present in an amount of from about 21% to about 30% by weight.

[0052] In some embodiments, the TiCh particles are present in an amount of at least 5%, at least 6%, at least 7%, at least 8%, at least 9%, at least 10%, at least 11%, at least 12%, at least 13%, at least 14%, at least 15%, at least 16%, at least 17%, at least 18%, at least 19%, at least 20%, at least 21%, at least 22%, at least 23%, at least 24%, at least 25%, at least 26%, at least 27%, at least 28%, at least 29%, or at least 30% by weight. In some embodiments, the TiCh particles are present in an amount of at least 32%, at least 33%, at least 34%, at least 35%, at least 40%, at least 45%, at least 50%, at least 55%, at least 60%, at least 65%, at least 70%, or at least 75% by weight.

[0053] In some embodiments, the TiCh particles are present in an amount of no more than 90%, no more than 75%, no more than 70%, no more than 65%, no more than 60%, no more than 55%, no more than 50%, no more than 45%, no more than 40%, no more than 35%, no more than 30%, no more than 29%, no more than 28%, no more than 27%, no more than 26%, no more than 25%, no more than 24%, no more than 23%, no more than 22%, no more than 21%, no more than 20%, no more than 19%, no more than 18%, no more than 17%, no more than 16%, no more than 15%, no more than 10%, or no more than 9% by weight.

[0054] In some embodiments, the TiCh particles are present in an amount of from about 5% to about 80%, from about 5% to about 60%, from about 10% to about 50%, from about 25% to about 40%, from about 10% to about 35%, from about 25% to about 30%, or from about 15% to about 30% by weight. In some embodiments, the TiCh particles are present in an amount of from about 5% to about 20%, from about 8% to about 15%, from about 3% to about 30%, from about 4% to about 40%, from about 9% to about 25%, or from about 10% to about 20% by weight. In some embodiments, the TiCh particles are present in an amount of from about 8% to about 40%, from about 10% to about 80%, from about 50% to about 90%, from about 20% to about 70%, from about 25% to about 35%, or from about 20% to about 50% by weight.

[0055] In some embodiments, the TiCh particles are present in an amount falling within another range starting no lower than about 5% by weight and ending no higher than about 90% by weight.

[0056] In some embodiments, the TiCh particles comprise an anatase powder form of TiCh. In some embodiments, the TiCh particles comprise a brookite powder form of TiCh. In some embodiments, the TiCh particles comprise a rutile powder form of TiCh. In some embodiments, the TiCh particles comprise anatase powder form of TiCh, a brookite powder form of TiCh, a rutile powder form of TiCh, or any mixture of any combination thereof.

[0057] In some embodiments, each respective TiCh particle in the plurality of TiOs particles comprises a modifier. In some embodiments, the modifier is a surface treatment, where each respective TiCh particle comprises a coating. Advantageously, in some implementations, the coating increases the compatibility of the TiCh particles with other materials. In some implementations, the coating reduces undesirable interactions of the TiCh particles with the environment. In some embodiments, the coating provides enhanced mechanical properties for the TiCh particles such as resistance to chalking, scrubbing, and / or loss of color. Chalking of the applied composition can occur due to degradation or disintegration of a binder and / or resin in a composition (e.g., due to weather and / or UV exposure). Scrub resistance generally refers to the ability of the applied composition to resist wearing or degradation. In some embodiments, the coating improves gloss and opacity of the composition, reduces agglomeration of the composition (e.g., during storage), and / or reduces water absorption on the surface of the TiCh particles.

[0058] In some embodiments, the coating is bonded to the surface of the TiCh particle and, as a result, is highly durable. In some embodiments, the modifier is an aluminum hydroxide coating. In some embodiments, the modifier is an inorganic coating selected from the group consisting of titanium, zirconium, silicon and aluminum compounds, or a pharmaceutically acceptable salt, solvate, hydrate, cocrystal, or prodrug thereof. Suitable embodiments for modifiers of TiCh particles are further described, e.g., in “Titanium Dioxide Products,” Ishihara Sangyo Kaisha, Ltd., available on the Internet at iskweb.co.jp; Kerr-McGee Chemical LLC, “Tailoring TiO2 Treatment Chemistry To Achieve Desired Performance Properties,” PCI Magazine, 2000, available on the Internet at pcimag. com / articles / 86202- tailoring-tio2-treatment-chemistry-to-achieve-desired-performance-properties; and Veronovski, “TiO2 Applications as a Function of Controlled Surface Treatment, Titanium Dioxide - Material for a Sustainable Environment,” IntechOpen, 2018, doi: 10.5772 / intechopen.72945, each of which is hereby incorporated herein by reference in its entirety.

[0059] In some embodiments, each respective TiCh particle in the plurality of TiCh particles has a size of no more than 20 microns. In some embodiments, each respective TiCh particle in the plurality of TiCh particles has a size of no more than 10 microns. In some embodiments, each respective TiCh particle in the plurality of TiCh particles has a size of no more than 5 microns. In some embodiments, each respective TiCh particle in the plurality of TiCh particles has a size of no more than 25, no more than 20, no more than 18, no more than 15, no more than 12, no more than 10, no more than 8, no more than 5, no more than 4, no more than 3, or no more than 2 microns. In some embodiments, each respective TiCh particle in the plurality of TiCh particles has a size of at least 0.05, at least 0.08, at least 0.1, at least 0.3, at least 0.5, at least 0.8, at least 1, or at least 1.5 microns. In some embodiments, each respective TiCh particle in the plurality of TiCh particles has a size of from about 0.05 to about 5, from about 0.1 to about 8, from about 0.5 to about 10, from about 0.5 to about 5, from about 1 to about 3, from about 1 to about 20, or from about 5 to about 15 microns. In some embodiments, each respective TiCh particle in the plurality of TiCh particles has a size that falls within another range starting no lower than 0.05 microns and ending no higher than 25 microns.

[0060] In some embodiments, at least 50% of the TiCh particles in the plurality of TiCh particles have the same or nearly the same particle size (e.g., the size of the TiCh particles have a tight distribution). In some embodiments, at least 30%, at least 40%, at least 50%, atleast 60%, at least 70%, at least 75%, at least 80%, at least 85%, at least 90%, at least 95%, at least 98%, or at least 99% of the TiCh particles in the plurality of TiCh particles have the same or nearly the same particle size.

[0061] In some embodiments, all of the TiCh particles have a particle size of no more than 10 microns (e.g., from about 1 to about 3 microns). Advantageously, in some embodiments, the particle size of no more than 10 microns provides improved stability of the presently disclosed compositions and allows for a more even application of the product to a surface. For example, in some implementations, the TiCh particles having a particle size of no more than 10 microns allows for a homogenous distribution of TiCh particles in the asphalt-based slurry seal base composition, or a slurry seal composition comprising the same, and results in fewer microdomains having uneven distributions of various components (e.g., asphalt, pigment, polymer, etc.).

[0062] In some embodiments, the asphalt-based slurry seal base composition does not comprise TiCh particles.

[0063] Asphalt

[0064] In some embodiments, the asphalt-based slurry seal base composition comprises asphalt emulsion.

[0065] In some embodiments, the asphalt emulsion is present in an amount of from about 5% to about 40% by weight. In some embodiments, the asphalt emulsion is present in an amount of from about 10% to about 35% by weight. In some embodiments, the asphalt emulsion is present in an amount of from about 15% to about 30% by weight. In some embodiments, the asphalt emulsion is present in an amount of from about 15% to about 25% by weight. In some embodiments, the asphalt emulsion is present in an amount of from about 18% to about 23% by weight. In some embodiments, the asphalt emulsion is present in an amount of about 20% by weight. In some embodiments, the asphalt emulsion is present in an amount of about 21.7% by weight.

[0066] In some embodiments, the asphalt emulsion is present in an amount of at least 5%, at least 6%, at least 7%, at least 8%, at least 9%, at least 10%, at least 11%, at least 12%, at least 13%, at least 14%, at least 15%, at least 16%, at least 17%, at least 18%, at least 19%, at least 20%, at least 21%, at least 22%, at least 23%, at least 24%, at least 25%, at least 26%, at least 27%, at least 28%, at least 29%, at least 30%, at least 31%, at least 32%, at least 33%, atleast 34%, at least 35%, at least 36%, at least 37%, at least 38%, at least 39%, at least 40%, at least 45%, at least 50%, at least 55%, at least 60%, at least 65%, or at least 70% by weight.

[0067] In some embodiments, the asphalt emulsion is present in an amount of no more than 80%, no more than 75%, no more than 70%, no more than 65%, no more than 60%, no more than 55%, no more than 50%, no more than 45%, no more than 40%, no more than 35%, no more than 30%, no more than 29%, no more than 28%, no more than 27%, no more than 26%, no more than 25%, no more than 24%, no more than 23%, no more than 22%, no more than 21%, no more than 20%, no more than 19%, no more than 18%, no more than 17%, no more than 16%, no more than 15%, or no more than 10% by weight.

[0068] In some embodiments, the asphalt emulsion is present in an amount of from about 5% to about 80%, from about 10% to about 60%, from about 15% to about 50%, from about 15% to about 40%, from about 18% to about 30%, from about 20% to about 25%, from about 8% to about 20%, from about 10% to about 30%, from about 5% to about 25%, from about 30% to about 50%, or from about 10% to about 70% by weight. In some embodiments, the asphalt emulsion is present in an amount falling within another range starting no lower than about 5% by weight and ending no higher than about 80% by weight.

[0069] In some embodiments, the asphalt emulsion is selected from the group consisting of CSS-lh, CSS-1, SS-lh, SS-1, clay-based emulsions, and / or any mixture thereof.

[0070] In some embodiments, the asphalt emulsion is a rapid set (RS), medium set (MS), slow set (SS), or quick set (QS) emulsion. In some embodiments, the asphalt emulsion is cationic. In some embodiments, the asphalt emulsion is anionic. In some embodiments, the asphalt emulsion is a high float (HF) emulsion.

[0071] Any asphalt emulsion suitable for the preparation of asphalt-based compositions is contemplated in the amounts disclosed herein for the compositions of the present disclosure, as will be apparent to one skilled in the art, including but not limited to RS-1, RS-2, MS-1, MS-2, MS-2h, HFMS-1, HFMS-2, HFMS-2h, HFMS-2s, SSI, SSlh, CRS-1, CRS-2, CRS- 2p, CM2, CM2h, CMS-2, CMS-2h, CSS-1, CSS-lh, CSS-lhp, and / or CQS-lh.

[0072] In some embodiments, the asphalt emulsion is selected from the group consisting of penetration grade 40-50 emulsions, penetration grade 60-70 emulsions, penetration grade 85-100 emulsions, penetration grade 120-150 emulsions, and penetration grade 200-300 emulsions. In some embodiments, the asphalt emulsion is a penetration grade 60 emulsion.

[0073] Penetration grading is used to characterize the consistency of asphalt mixes, particularly as measured with respect to penetration depth (e.g., of a 100 g needle at 25 °C). For instance, penetration grades 40-50 indicate the hardest grades, penetration grades 60-70 and 85-100 refer to commonly used grades in temperate climates, and penetration grades 200- 300 indicate the softest grades, typically used for cold climates. See, for example, Roberts et al., 1996, Hot Mix Asphalt Materials, Mixture Design, and Construction. National Asphalt Pavement Association Education Foundation, Lanham, MD, which is hereby incorporated herein by reference in its entirety.

[0074] In some embodiments, the asphalt emulsion comprises a single type (e.g., penetration grade, mixing grade, ionic classification, etc.) of asphalt emulsion. In some embodiments, the asphalt emulsion comprises a plurality of types of asphalt emulsion. In some embodiments, where the composition comprises a plurality of types of asphalt emulsions, each type of asphalt emulsion in the plurality of asphalt emulsions is present in an amount (e.g., percent by weight) disclosed herein. In some such embodiments, each type of asphalt emulsion in the plurality of asphalt emulsions is present in the same amount (e.g., percent by weight) relative to the composition. In some such embodiments, two or more types of asphalt emulsion in the plurality of asphalt emulsions are present in different amounts (e.g., percent by weight) relative to the composition. In some embodiments, where the composition comprises a plurality of types of asphalt emulsions, the amount of asphalt emulsion present in the composition (e.g., as disclosed herein) indicates the total amount of asphalt emulsion in the plurality of asphalt emulsions.

[0075] In some embodiments, the asphalt emulsion further includes an asphalt reinforcement component. In some embodiments, the asphalt reinforcement component is selected from the group consisting of mineral asphaltenes (e.g., gilsonite), clarified asphalt (e.g., clear asphalts), and bio-based asphalt-like binders (e.g., soy, com, palm, flax, algae, kelp, linseed, start, cellulose, collagen, etc.) In some embodiments, the one or more asphalt reinforcement components include bio-rejuvenators. Advantageously, asphalt reinforcement components can provide flexibility in the asphalt-based slurry seal base composition, or a slurry seal composition comprising the same, allowing for modification of harder asphalt types and / or the inclusion of a variety of different asphalt types.

[0076] In some embodiments, the asphalt emulsion is a polymer-modified asphalt emulsion. For instance, as described below, in some implementations, a polymer emulsion is included in the asphalt emulsion prior to adding the asphalt emulsion to the asphalt-basedslurry seal base composition. For instance, asphalt emulsions classified with a “P” suffix generally refer to asphalt emulsions that have been supplemented with polymer. In another example, asphalt emulsions classified with an “L” suffix generally refer to asphalt emulsions that have been supplemented with a latex polymer.

[0077] In some embodiments, the asphalt emulsion does not contain added polymers, and polymers are added to the asphalt-based slurry seal base composition separately from the asphalt emulsion. Suitable polymers contemplated for use in the present disclosure are discussed in greater detail in the section entitled “Polymer Emulsion,” below.

[0078] Water

[0079] In some embodiments, the asphalt-based slurry seal base composition comprises water.

[0080] In some embodiments, the water is present in an amount of from about 15% to about 45% by weight. In some embodiments, the water is present in an amount of from about 18% to about 35% by weight. In some embodiments, the water is present in an amount of from about 20% to about 30% by weight. In some embodiments, the water is present in an amount of from about 20% to about 28% by weight. In some embodiments, the water is present in an amount of about 20.7% by weight. In some embodiments, the water is present in an amount of from about 22% to about 28% by weight. In some embodiments, the water is present in an amount of about 25% by weight.

[0081] In some embodiments, the water is present in an amount of at least 5%, at least 10%, at least 11%, at least 12%, at least 13%, at least 14%, at least 15%, at least 16%, at least17%, at least 18%, at least 19%, at least 20%, at least 21%, at least 22%, at least 23%, at least24%, at least 25%, at least 26%, at least 27%, at least 28%, at least 29%, at least 30%, at least31%, at least 32%, at least 33%, at least 34%, at least 35%, at least 36%, at least 37%, at least38%, at least 39%, at least 40%, at least 45%, or at least 50% by weight.

[0082] In some embodiments, the water is present in an amount of no more than 60%, no more than 55%, no more than 50%, no more than 45%, no more than 40%, no more than 35%, no more than 30%, no more than 29%, no more than 28%, no more than 27%, no more than 26%, no more than 25%, no more than 24%, no more than 23%, no more than 22%, no more than 21%, no more than 20%, no more than 19%, no more than 18%, no more than 17%, no more than 16%, no more than 15%, or no more than 10% by weight.

[0083] In some embodiments, the water is present in an amount of from about 5% to about 10%, from about 10% to about 30%, from about 15% to about 50%, from about 15% to about 40%, from about 18% to about 25%, from about 20% to about 23%, or from about 30% to about 60% by weight. In some embodiments, the water is present in an amount falling within another range starting no lower than about 5% by weight and ending no higher than about 60% by weight.

[0084] Polymer Emulsion

[0085] In some embodiments, the asphalt-based slurry seal base composition comprises polymer emulsion. In some embodiments, the asphalt-based slurry seal base composition does not comprise a polymer emulsion.

[0086] In some embodiments, the polymer emulsion is present in an amount of from about 1% to about 35% by weight. In some embodiments, the polymer emulsion is present in an amount of from about 2% to about 30% by weight. In some embodiments, the polymer emulsion is present in an amount of from about 3% to about 25% by weight. In some embodiments, the polymer emulsion is present in an amount of from about 4% to about 20% by weight. In some embodiments, the polymer emulsion is present in an amount of from about 6% to about 17% by weight. In some embodiments, the polymer emulsion is present in an amount of about 15% by weight. In some embodiments, the polymer emulsion is present in an amount of about 13.8% by weight. In some embodiments, the polymer emulsion is present in an amount of from about 5% to about 10% by weight. In some embodiments, the polymer emulsion is present in an amount of from about 6% to about 8% by weight. In some embodiments, the polymer emulsion is present in an amount of about 7.5% by weight.

[0087] In some embodiments, the polymer emulsion is present in an amount of at least 1%, at least 2%, at least 3%, at least 4%, at least 5%, at least 6%, at least 7%, at least 8%, at least 9%, at least 10%, at least 11%, at least 12%, at least 13%, at least 14%, at least 15%, at least 16%, at least 17%, at least 18%, at least 19%, at least 20%, at least 21%, at least 22%, at least 23%, at least 24%, at least 25%, at least 26%, at least 27%, at least 28%, at least 29%, at least 30%, at least 31%, at least 32%, at least 33%, at least 34%, at least 35%, at least 36%, at least 37%, at least 38%, at least 39%, at least 40%, at least 45%, or at least 50% by weight.

[0088] In some embodiments, the polymer emulsion is present in an amount of no more than 60%, no more than 55%, no more than 50%, no more than 45%, no more than 40%, no more than 35%, no more than 30%, no more than 25%, no more than 24%, no more than23%, no more than 22%, no more than 21%, no more than 20%, no more than 19%, no more than 18%, no more than 17%, no more than 16%, no more than 15%, no more than 14%, no more than 13%, no more than 12%, no more than 11%, no more than 10%, no more than 9%, no more than 8%, no more than 7%, no more than 6%, or no more than 5% by weight.

[0089] In some embodiments, the polymer emulsion is present in an amount of from about 1% to about 50%, from about 10% to about 60%, from about 5% to about 20%, from about 5% to about 10%, from about 10% to about 20%, from about 5% to about 25%, or from about 3% to about 18% by weight. In some embodiments, the polymer emulsion is present in an amount falling within another range starting no lower than about 1% by weight and ending no higher than about 60% by weight.

[0090] In some embodiments, the polymer emulsion comprises an acrylic polymer, a styrene acrylic, vinyl acetate ethylene, a styrene-butadiene copolymer resin (SBR), a polyvinyl acetate, and / or a mixture thereof. In some embodiments, the polymer emulsion comprises acrylic copolymer, vinyl acrylic, acrylic latex, polyurethane, SBR (styrene- buladiene rubber), SBS (styrene-butadiene-styrene), polychloroprene, polyvinyl acetate, polyvinyl acetate ether, polyvinyl alcohols, parboxylic acid, synthetic Rubber, natural rubber, recycled tire rubber, LDP (low density polyethylene), EVA (ethylene vinyl acetate), nitrile latex, DuPont Elvaloy Polymer Modifier, and / or any mixture thereof.

[0091] In some embodiments, the polymer emulsion comprises acrylic latex and / or EVA latex. In some implementations, the polymer emulsion comprises a self-crosslinking acrylic latex.

[0092] In some embodiments, the polymer emulsion further comprises additional water. In some embodiments, the polymer emulsion further comprises water that is present in the polymer emulsion in an amount of at least 15%, at least 20%, at least 25%, at least 28%, at least 30%, at least 33%, at least 35%, at least 38%, at least 40%, at least 45%, at least 50%, at least 53%, at least 55%, at least 58%, at least 60%, or at least 70% by weight. In some embodiments, the polymer emulsion further comprises water that is present in the polymer emulsion in an amount of no more than 80%, no more than 70%, no more than 60%, no more than 55%, no more than 50%, no more than 45%, no more than 40%, no more than 35%, no more than 30%, or no more than 25% by weight. In some embodiments, the polymer emulsion further comprises water that is present in the polymer emulsion in an amount of from about 15% to about 50%, from about 20% to about 70%, from about 15% to about 20%,from about 25% to about 60%, from about 40% to about 80%, from about 45% to about 55%, or from about 47% to about 53% by weight. In some embodiments, the polymer emulsion further comprises water that is present in the polymer emulsion in an amount falling within another range starting no lower than about 15% by weight and ending no higher than about 80% by weight.

[0093] In some embodiments, the polymer emulsion comprises a single type of polymer emulsion. In some embodiments, the polymer emulsion comprises a plurality of types of polymer emulsion. In some embodiments, where the composition comprises a plurality of types of polymer emulsions, each type of polymer emulsion in the plurality of polymer emulsions is present in an amount (e.g., percent by weight) disclosed herein. In some such embodiments, each type of polymer emulsion in the plurality of polymer emulsions is present in the same amount (e.g., percent by weight) relative to the composition. In some such embodiments, two or more types of polymer emulsion in the plurality of polymer emulsions are present in different amounts (e.g., percent by weight) relative to the composition. In some embodiments, where the composition comprises a plurality of types of polymer emulsions, the amount of polymer emulsion present in the composition (e.g., as disclosed herein) indicates the total amount of polymer emulsion in the plurality of polymer emulsions.

[0094] By way of example, in some embodiments, the polymer emulsion comprises a first type of polymer emulsion present in an amount of about 6.9% by weight and a second type of polymer emulsion present in an amount of about 6.9% by weight, where the total amount of polymer emulsion is present in the composition in an amount of about 13.8% by weight. As another example, in some embodiments, the polymer emulsion comprises formaldehyde (e.g., less than 0.05% by weight), styrene butadiene polymer (e.g., from about 17% to about 29% by weight), vinyl acetate (e.g., less than 0.05% by weight), acrylic polymer (e.g., from about 28% to about 48% by weight), ammonia (e.g., less than 0.05% by weight), and water (e.g., from about 47% to about 53% by weight).

[0095] Advantageously, in some implementations, the inclusion of polymers in the asphalt-based slurry seal base composition, or a slurry seal composition comprising the same, enhances the “wet” characteristics (e.g., stability and / or compatibility) and the “dry” characteristics (e.g., improved adhesion, abrasion, resistance, and / or other mechanical properties) of the composition. For instance, as described above, polymers can impart enhanced resistance to stretching (e.g., reduced brittleness and cracking) of the applied slurry seal composition comprising the disclosed slurry seal base composition, thus increasing thedurability and longevity of the coating. Moreover, as described above, in some implementations, the polymer emulsion comprises a plurality of types of polymer emulsion e.g., a self-crosslinking acrylic latex and an ethylene vinyl acetate latex). In some such embodiments, the use of a mixture of polymers advantageously results in a combination of characteristics that enhances the overall performance of the asphalt-based slurry seal base composition, or a slurry seal composition comprising the same, over any one individual polymer.

[0096] In some embodiments, the polymer is obtained as a component in a polymer- modified asphalt emulsion. For instance, as described above, in some implementations, a polymer emulsion is present in the obtained asphalt emulsion prior to the mixing of the asphalt-based slurry seal base composition. Generally, asphalt emulsions classified with a “P” suffix refer to asphalt emulsions that have been supplemented with polymer. In another example, asphalt emulsions classified with an “L” suffix generally refer to asphalt emulsions that have been supplemented with a latex polymer. Typically, polymers are added to the asphalt emulsion to enhance the strength, adhesion, and / or durability of any asphalt-based composition including the asphalt emulsion.

[0097] In some embodiments, the asphalt emulsion is not modified with polymers, and the polymer emulsion and asphalt emulsion are individually added to the asphalt-based slurry seal base composition. In some implementations, the use of separate polymer emulsions (e.g., not included as part of a modified asphalt emulsion) advantageously allows for greater flexibility and variety in the selection of compatible polymers with desired properties. Accordingly, in some embodiments, the polymer emulsion is introduced as a polymer latex or water-borne polymer as a component separate and independent from the asphalt.

[0098] Any polymer emulsion suitable for the preparation of asphalt-based compositions is contemplated in the amounts disclosed herein for the compositions of the present disclosure, as will be apparent to one skilled in the art.

[0099] Biocide

[0100] In some embodiments, the asphalt-based slurry seal base composition comprises biocide. In some embodiments, the asphalt-based slurry seal base composition does not comprise a biocide.

[0101] In some embodiments, the biocide is present in an amount of from about 0.01% to about 5% by weight. In some embodiments, the biocide is present in an amount of fromabout 0.1% to about 2% by weight. In some embodiments, the biocide is present in an amount of about 0.3% by weight. In some embodiments, the biocide is present in an amount of about 0.2% by weight.

[0102] In some embodiments, the biocide is present in an amount of at least 0.01%, at least 0.02%, at least 0.03%, at least 0.04%, at least 0.05%, at least 0.06%, at least 0.07%, at least 0.08%, at least 0.09%, at least 0.1%, at least 0.2%, at least 0.3%, at least 0.4%, at least 0.5%, at least 0.6%, at least 0.7%, at least 0.8%, at least 0.9%, at least 1%, at least 2%, at least 3%, at least 4%, at least 5%, at least 6%, at least 7%, at least 8%, at least 9%, or at least 10% by weight. In some embodiments, the biocide is present in an amount of no more than 15%, no more than 10%, no more than 5%, no more than 4%, no more than 3%, no more than 2%, no more than 1%, no more than 0.9%, no more than 0.8%, no more than 0.7%, no more than 0.6%, no more than 0.5%, no more than 0.4%, no more than 0.3%, no more than 0.2%, or no more than 0.1% by weight.

[0103] In some embodiments, the biocide is present in an amount of from about 0.05% to about 5%, from about 0.1% to about 10%, from about 0.2% to about 1%, from about 0.1% to about 2%, from about 0.01% to about 15%, or from about 0.1% to about 0.5%, by weight. In some embodiments, the biocide is present in an amount falling within another range starting no lower than about 0.01% by weight and ending no higher than about 15% by weight.

[0104] In some embodiments, the biocide comprises a single type of biocide. In some embodiments, the biocide comprises a plurality of types of biocide. In some embodiments, where the composition comprises a plurality of types of biocide, each type of biocide in the plurality of types of biocide is present in an amount (e.g., percent by weight) disclosed herein. In some such embodiments, each type of biocide in the plurality of types of biocide is present in the same amount (e.g., percent by weight) relative to the composition. In some such embodiments, two or more types of biocide in the plurality of types of biocide are present in different amounts e.g., percent by weight) relative to the composition. In some embodiments, where the composition comprises a plurality of types of biocide, the amount of biocide present in the composition (e.g., as disclosed herein) indicates the total amount of biocide in the plurality of types of biocide.

[0105] Dispersants

[0106] In some embodiments, the asphalt-based slurry seal base composition comprises a dispersant. In some embodiments, the asphalt-based slurry seal base composition does not comprise a dispersant

[0107] In some embodiments, the dispersant is present in an amount of from about 0.01% to about 10% by weight. In some embodiments, the dispersant is present in an amount of from about 0.03% to about 3% by weight. In some embodiments, the dispersant is present in an amount of from about 0.05% to about 1% by weight. In some embodiments, the dispersant is present in an amount of about 0.07% by weight. In some embodiments, the dispersant is present in an amount of about 0.2% by weight.

[0108] In some embodiments, the dispersant is present in an amount of at least 0.001%, at least 0.002%, at least 0.003%, at least 0.004%, at least 0.005%, at least 0.006%, at least 0.007%, at least 0.008%, at least 0.009%, at least 0.01%, at least 0.02%, at least 0.03%, at least 0.04%, at least 0.05%, at least 0.06%, at least 0.07%, at least 0.08%, at least 0.09%, at least 0.1%, at least 0.2%, at least 0.3%, at least 0.4%, at least 0.5%, at least 0.6%, at least 0.7%, at least 0.8%, at least 0.9%, at least 1%, at least 2%, at least 3%, at least 4%, at least 5%, at least 6%, at least 7%, at least 8%, at least 9%, at least 10%, at least 11%, at least 12%, at least 13%, at least 14%, or at least 15% by weight.

[0109] In some embodiments, the dispersant is present in an amount of no more than 20%, no more than 15%, no more than 10%, no more than 9%, no more than 8%, no more than 7%, no more than 6%, no more than 5%, no more than 4%, no more than 3%, no more than 2%, no more than 1%, no more than 0.9%, no more than 0.8%, no more than 0.7%, no more than 0.6%, no more than 0.5%, no more than 0.4%, no more than 0.3%, no more than 0.2%, no more than 0.1%, no more than 0.09%, no more than 0.08%, no more than 0.07%, no more than 0.06%, no more than 0.05%, no more than 0.04%, no more than 0.03%, no more than 0.02%, or no more than 0.01% by weight.

[0110] In some embodiments, the dispersant is present in an amount of from about 0.05% to about 5%, from about 0.1% to about 15%, from about 0.2% to about 10%, from about 0.001% to about 2%, from about 0.01% to about 1%, from about 0.05 to about 0.1, from about 0.03 to about 0.5, or from about 0.5% to about 3% by weight. In some embodiments, the dispersant is present in an amount falling within another range starting no lower than about 0.001% by weight and ending no higher than about 20% by weight.

[0111] In some embodiments, the dispersant comprises a single type of dispersant. In some embodiments, the dispersant comprises a plurality of types of dispersant. In some embodiments, where the composition comprises a plurality of types of dispersant, each type of dispersant in the plurality of types of dispersant is present in an amount (e.g., percent by weight) disclosed herein. In some such embodiments, each type of dispersant in the plurality of types of dispersant is present in the same amount (e.g, percent by weight) relative to the composition. In some such embodiments, two or more types of dispersant in the plurality of types of dispersant are present in different amounts (e.g., percent by weight) relative to the composition. In some embodiments, where the composition comprises a plurality of types of dispersant, the amount of dispersant present in the composition (e.g., as disclosed herein) indicates the total amount of dispersant in the plurality of types of dispersant.

[0112] In some embodiments, the dispersant is used to disperse pigments in the composition (e.g., an infrared-reflective pigment as described elsewhere herein; see, e.g., the section entitled “Reflectance of asphalt-based slurry seal base composition,” below). In some embodiments, the dispersant is used to disperse TiCh in the composition. In some embodiments, the dispersant is mixed with pigment (e.g., an IR-reflective pigment) to disperse (e.g., homogenize) the pigment prior to adding the dispersant and the pigment to the composition. In some embodiments, the dispersant is mixed with TiCh particles to disperse (e.g. , homogenize) the TiCh particles prior to adding the dispersant and the TiCh particles to the composition.

[0113] In some embodiments, the dispersant contributes to the stability of the composition. For instance, in some embodiments, a dispersant is used to stabilize an asphalt emulsion. In some implementations, stabilization advantageously allows for a wider variety of asphalt sources, improved product stability, and better control of drying and reactivity. In some embodiments, the dispersant contributes to the pH stability of the composition.

[0114] In some embodiments, the dispersant is selected from the group consisting of polyacrylic acid, copolymers, polyurethanes, polyacrylates, star-shaped dispersing polymers, block copolymers, controlled free radical polymerization (CFRP), and amines. In some embodiments, the dispersant is 2-amino-2-methyl-l -propanol. For instance, in some embodiments, the dispersant is any dispersant suitable for the preparation of asphalt-based compositions, as will be apparent to one skilled in the art.

[0115] In some embodiments, the dispersant is selected depending on the identity of the pigment (e.g., an IR-reflective pigment) that is to be dispersed throughout the composition. For instance, a recommended type of dispersant can depend on the surface characteristics of the desired pigment. In some embodiments, different dispersants can exhibit different levels of effectiveness for different pigments. Accordingly, in some embodiments, the dispersant contains phenyl or naphthyl groups, acidic groups (e.g., phosphate, carboxy, and / or sulfate), and / or nitrogen.

[0116] Plasticizer

[0117] In some embodiments, the asphalt-based slurry seal base composition comprises a plasticizer. In some embodiments, the asphalt-based slurry seal base composition does not comprise a plasticizer.

[0118] In some embodiments, the plasticizer is present in an amount of from about 0.1% to about 20% by weight. In some embodiments, the plasticizer is present in an amount of from about 0.5% to about 10% by weight. In some embodiments, the plasticizer is present in an amount of from about 1% to about 5% by weight. In some embodiments, the plasticizer is present in an amount of about 1.5% by weight.

[0119] In some embodiments, the plasticizer is present in an amount of at least 0.01%, at least 0.02%, at least 0.03%, at least 0.04%, at least 0.05%, at least 0.06%, at least 0.07%, at least 0.08%, at least 0.09%, at least 0.1%, at least 0.2%, at least 0.3%, at least 0.4%, at least 0.5%, at least 0.6%, at least 0.7%, at least 0.8%, at least 0.9%, at least 1%, at least 2%, at least 3%, at least 4%, at least 5%, at least 6%, at least 7%, at least 8%, at least 9%, at least 10%, at least 11%, at least 12%, at least 13%, at least 14%, at least 15%, at least 16%, at least 17%, at least 18%, at least 19%, or at least 20% by weight. In some embodiments, the plasticizer is present in an amount of no more than 25%, no more than 24%, no more than 23%, no more than 22%, no more than 21%, no more than 20%, no more than 19%, no more than 18%, no more than 17%, no more than 16%, no more than 15%, no more than 14%, no more than 13%, no more than 12%, no more than 11%, no more than 10%, no more than 9%, no more than 8%, no more than 7%, no more than 6%, no more than 5%, no more than 4%, no more than 3%, no more than 2%, no more than 1%, no more than 0.9%, no more than 0.8%, no more than 0.7%, no more than 0.6%, or no more than 0.5% by weight.

[0120] In some embodiments, the plasticizer is present in an amount of from about 0.05% to about 5%, from about 0.1% to about 15%, from about 0.2% to about 10%, from about0.3% to about 2%, from about 0.4% to about 1%, or from about 0.5% to about 3%, by weight. In some embodiments, the plasticizer is present in an amount falling within another range starting no lower than about 0.01% by weight and ending no higher than about 25% by weight.

[0121] In some embodiments, the plasticizer is selected from the group consisting of low molecular weight ortho phthalates, high molecular weight ortho phthalates, trimellitates, adipates, sebacates, glycerol triacetate, alkyl citrates, azelates, dibenzoates, terephthalates, gluterates, organophosphates, polycarboxylate ether, polycarboxylate, sulfonated naphthalene condensate, and sulfonated melamine formaldehyde. In some embodiments, the plasticizer is a low volatile organic compound (VOC) plasticizer.

[0122] In some embodiments, the plasticizer is any plasticizer suitable for the preparation of asphalt-based compositions, as will be apparent to one skilled in the art. For example, low molecular weight ortho phthalates include, but are not limited to, Diisobutyl phthalate (DIBP), Di-n-butyl phthalate (DBP), Butyl benzyl phthalate (BBzP), and / or Bi s(2-ethylhexyl) phthalate (DEHP). High molecular weight ortho phthalates include, but are not limited to, Diisononyl phthalate (DINP), Bi s(2 -propylheptyl) phthalate (DPHP), Diisodecyl phthalate (DIDP), Diisoundecyl phthalate (DIUP), and / or Di tridecyl phthalate (DTDP). Trimellitates include, but are not limited to, Tri-(2-ethylhexyl)trimellitate (TEHTM)(TOTM), Tri- (isononyl)trimellitate (TINTM), Tri-(isodecyl)trimellitate (TIDTM), and / or Tri- (isotridecyl)trimellitate (TITDTM).

[0123] In some embodiments, the plasticizer comprises a single type of plasticizer. In some embodiments, the plasticizer comprises a plurality of types of plasticizer. In some embodiments, where the composition comprises a plurality of types of plasticizer, each type of plasticizer in the plurality of types of plasticizer is present in an amount (e.g, percent by weight) disclosed herein. In some such embodiments, each type of plasticizer in the plurality of types of plasticizer is present in the same amount (e.g., percent by weight) relative to the composition. In some such embodiments, two or more types of plasticizer in the plurality of types of plasticizer are present in different amounts (e.g, percent by weight) relative to the composition. In some embodiments, where the composition comprises a plurality of types of plasticizer, the amount of plasticizer present in the composition (e.g., as disclosed herein) indicates the total amount of plasticizer in the plurality of types of plasticizer.

[0124] In some embodiments, for example, plasticizers are used to promote softness, plasticity, and / or flexibility, and to reduce viscosity, friction, and / or brittleness in the asphaltbased slurry seal base composition, or a slurry seal composition comprising the same. In some implementations, plasticizers reduce the glass transition temperature of the asphaltbased slurry seal base composition, or a slurry seal composition comprising the same. Lower glass transition temperatures are beneficial in that they result in a more resilient, rubbery product with increased resistance to mechanical stress (e.g., cracking, elongation, fracture, and / or general film failure). This advantageously improves the ease with which the asphaltbased slurry seal base composition, or a slurry seal composition comprising the same, forms a consistent film during drying.

[0125] Dirt-Resistance Additives

[0126] In some embodiments, the asphalt-based slurry seal base composition further comprises a dirt-resistance additive. In some embodiments, the asphalt-based slurry seal base composition does not comprise a dirt-resistance additive.

[0127] In some embodiments, the dirt-resistance additive is present in an amount of at least 0.01%, at least 0.02%, at least 0.03%, at least 0.04%, at least 0.05%, at least 0.06%, at least 0.07%, at least 0.08%, at least 0.09%, at least 0.1%, at least 0.2%, at least 0.3%, at least 0.4%, at least 0.5%, at least 0.6%, at least 0.7%, at least 0.8%, at least 0.9%, at least 1%, at least 2%, at least 3%, at least 4%, at least 5%, at least 6%, at least 7%, at least 8%, at least 9%, at least 10%, at least 11%, at least 12%, at least 13%, at least 14%, at least 15%, at least 16%, at least 17%, at least 18%, at least 19%, or at least 20% by weight. In some embodiments, the dirt-resistance additive is present in an amount of no more than 25%, no more than 24%, no more than 23%, no more than 22%, no more than 21%, no more than 20%, no more than 19%, no more than 18%, no more than 17%, no more than 16%, no more than 15%, no more than 14%, no more than 13%, no more than 12%, no more than 11%, no more than 10%, no more than 9%, no more than 8%, no more than 7%, no more than 6%, no more than 5%, no more than 4%, no more than 3%, no more than 2%, no more than 1%, no more than 0.9%, no more than 0.8%, no more than 0.7%, no more than 0.6%, or no more than 0.5% by weight.

[0128] In some embodiments, the dirt-resistance additive is present in an amount of from about 0.05% to about 5%, from about 0.1% to about 15%, from about 0.2% to about 10%, from about 0.3% to about 2%, from about 0.4% to about 1%, or from about 0.5% to about3%, by weight. In some embodiments, the dirt-resistance additive is present in an amount falling within another range starting no lower than about 0.01% by weight and ending no higher than about 25% by weight.

[0129] In some embodiments, the dirt-resistance additive is colloidal silica. In some embodiments, the dirt-resistance additive is methyl-o-benzoyl benzoate (MBB). Suitable embodiments for dirt-resistance additives contemplated for use in the present disclosure are further disclosed in, e.g., U.S. Patent Application No. US16 / 910,743, filed June 24, 2020, which is hereby incorporated herein by reference in its entirety.

[0130] The compositions and various components disclosed herein are not intended to be limiting. For example, any of the compositions provided herein may be substituted, modified, added, subtracted, and / or combined with any suitable component of asphalt-based slurry seal base compositions, and / or slurry seal compositions comprising the same, as will be apparent to one skilled in the art. Additional embodiments for asphalt-based slurry seal base compositions, and / or slurry seal compositions comprising the same, and components of the same are contemplated, as further described in International Application No. PCT / US2018 / 066431, filed 19 December 2018, and U.S. Provisional Patent Application No. 62 / 608,881, filed 21 December 2017, each of which is hereby incorporated herein by reference in its entirety.

[0131] IV. Reflectance of asphalt-based slurry seal base composition

[0132] In one aspect, the present disclosure relates to an asphalt-based slurry seal base composition, and / or an asphalt-based slurry seal composition comprising the same, that is highly solar reflective. In some embodiments, the asphalt-based slurry seal base composition, and / or the asphalt-based slurry seal composition comprising the same, has a Solar Reflectivity number (SR #) of at least about 0.10. In some embodiments, the asphaltbased slurry seal base composition, and / or the asphalt-based slurry seal composition comprising the same, has a Solar Reflectivity number (SR #) of at least about 0.15, at least about 0.20, at least about 0.30, at least about 0.33, or at least about 0.35.

[0133] In some embodiments, the asphalt-based slurry seal base composition, and / or the asphalt-based slurry seal composition comprising the same, has a SR # of at least about 0.10, at least about O.i l, at least about 0.12, at least about 0.13, at least about 0.14, at least about 0.15, at least about 0.16, at least about 0.17, at least about 0.18, at least about 0.19, at least about 0.20, at least about 0.21, at least about 0.22, at least about 0.23, at least about 0.24, atleast about 0.25, at least about 0.26, at least about 0.27, at least about 0.28, at least about 0.29, at least about 0.30, at least about 0.31, at least about 0.32, at least about 0.33, at least about 0.34, at least about 0.35, at least about 0.36, at least about 0.37, at least about 0.38, at least about 0.39, at least about 0.40, at least about 0.41, at least about 0.42, at least about 0.43, at least about 0.44, at least about 0.45, at least about 0.46, at least about 0.47, at least about 0.48, at least about 0.49, at least about 0.50, at least about 0.55, at least about 0.60, at least about 0.65, or at least about 0.70.

[0134] In some embodiments, the asphalt-based slurry seal base composition, and / or the asphalt-based slurry seal composition comprising the same, has a SR # of from about 0.20 to about 0.60, from about 0. 10 to about 0.45, from about 0.20 to about 0.40, from about 0.25 to about 0.38, from about 0.30 to about 0.36, from about 0.30 to about 0.50, from about 0.35 to about 0.45, from about 0.42 to about 0.50, or from about 0.45 to about 0.65. In some embodiments, the asphalt-based slurry seal base composition, and / or the asphalt-based slurry seal composition comprising the same, has a SR # that falls within another range starting no lower than 0.10 and ending no higher than 0.70.

[0135] In some embodiments, the asphalt-based slurry seal base composition, and / or the asphalt-based slurry seal composition comprising the same, has Solar Reflective Index (SRI #) of at least about 10, at least about 20, at least about 30, or at least about 33. In some embodiments, the asphalt-based slurry seal base composition, and / or the asphalt-based slurry seal composition comprising the same, has an SRI # of about 35.

[0136] In some embodiments, the asphalt-based slurry seal base composition, and / or the asphalt-based slurry seal composition comprising the same, has a SRI # of at least about 10, at least about 11, at least about 12, at least about 13, at least about 14, at least about 15, at least about 16, at least about 17, at least about 18, at least about 19, at least about 20, at least about 21, at least about 22, at least about 23, at least about 24, at least about 25, at least about 26, at least about 27, at least about 28, at least about 29, at least about 30, at least about 31, at least about 32, at least about 33, at least about 34, at least about 35, at least about 36, at least about 37, at least about 38, at least about 39, at least about 40, at least about 41, at least about 42, at least about 43, at least about 44, at least about 45, at least about 46, at least about 47, at least about 48, at least about 49, at least about 50, at least about 55, at least about 60, at least about 65, or at least about 70.

[0137] In some embodiments, the asphalt-based slurry seal base composition, and / or the asphalt-based slurry seal composition comprising the same, has an SRI # of from about 20 to about 60, from about 10 to about 45, from about 20 to about 40, from about 25 to about 38, from about 30 to about 36, from about 30 to about 50, from about 35 to about 45, from about 42 to about 50, or from about 45 to about 65. In some embodiments, the asphalt-based slurry seal base composition, and / or the asphalt-based slurry seal composition comprising the same, has an SRI # that falls within another range starting no lower than 10 and ending no higher than 70.

[0138] In some embodiments, the asphalt-based slurry seal base composition, and / or the asphalt-based slurry seal composition comprising the same, has an emissivity of at least about 0.70, at least about 0.80, at least about 0.90, or at least about 0.92. In some embodiments, the asphalt-based slurry seal base composition, and / or the asphalt-based slurry seal composition comprising the same, has an emissivity of about 0.92. In some embodiments, the asphaltbased slurry seal base composition, and / or the asphalt-based slurry seal composition comprising the same, has an emissivity of from about 0.70 to about 0.99.

[0139] In some embodiments, an asphalt-based slurry seal composition comprising the asphalt-based slurry seal base composition reduces surface temperatures of asphalt treated with the asphalt-based slurry seal composition compared to asphalt not treated with the asphalt-based slurry seal composition.

[0140] In some embodiments, the reflectance of the asphalt-based slurry seal base composition, and / or the asphalt-based slurry seal composition comprising the same, is determined using a pyrometer at different times of day over a two-month period according to ASTM E1918-16, Standard Test Method for Measuring Solar Reflectance of Horizontal and Low-Sloped Surfaces in the Field, ASTM International, West Conshohocken, PA, 2016, available on the Internet at astm.org. Due to the varying position and angle of the sun during these times, this allows measurements of multiple different areas within test sections of the asphalt-based slurry seal composition or base composition.

[0141] In some embodiments, the reflectance and thermal emissivity of the asphalt-based slurry seal base composition, and / or the asphalt-based slurry seal composition comprising the same, is determined by subjecting a core of a section of the composition to ASTM C 1549 (ASTM Cl 549-16, “Standard Test Method for Determination of Solar Reflectance Near Ambient Temperature Using a Portable Solar Reflectometer,” ASTM International, WestConshohocken, PA, 2016, available on the Internet at astm.org) and ASTM C1371 (ASTM C 1371 - 15, “Standard Test Method for Determination of Emittance of Materials Near Room Temperature Using Portable Emissometers,” ASTM International, West Conshohocken, PA, 2015, available on the Internet at astm.org), respectively. SRI values can then be calculated according to ASTM E1980-11 (“Standard Practice for Calculating Solar Reflectance Index of Horizontal and Low-Sloped Opaque Surfaces,” ASTM International, West Conshohocken, PA, 2001, available on the Internet at astm.org).

[0142] In some implementations, the asphalt-based slurry seal base composition, and / or the asphalt-based slurry seal composition comprising the same, has an SRI # that satisfies LEED requirements while using low amounts of TiO? particles. Further details on LEED requirements are disclosed in, e.g., “LEED ND: Plan v4 - LEED v4 Heat island reduction,” available on the Internet at usgbc.org / credits / neighborhood-development-plan-neighborhood- development / v4-draft / gibc-9, which is hereby incorporated herein by reference in its entirety. As described above, the reduction in the amount of TiCh particles can be supplemented by low-cost materials, such as extenders and / or fillers.

[0143] In some such implementations, the asphalt-based slurry seal base composition, and / or the asphalt-based slurry seal composition comprising the same, advantageously reduce the cost of slurry seal compositions while maintaining high solar reflectivity and thus reducing surface temperatures of asphalt treated with the slurry seal compositions compared to asphalt not treated with slurry seal compositions. Accordingly, in some implementations, the asphalt-based slurry seal base composition includes TiCh particles present in an amount of no more than 30% by weight and has an SRI # of at least 30. In some implementations, the asphalt-based slurry seal base composition includes TiCh particles present in an amount of no more than 20% by weight and has an SRI # of at least 33. In some implementations, the asphalt-based slurry seal base composition includes TiCh particles present in an amount of no more than 15% by weight and has an SRI # of at least 35.

[0144] In some embodiments, the asphalt-based slurry seal base composition includes TiCh particles present in an amount of no more than 35%, no more than 30%, no more than 25%, no more than 20%, or no more than 15% by weight and has an SRI # of at least 23, at least 25, at least 30, at least 33, or at least 35. In an example embodiment, the asphalt-based slurry seal base composition includes TiCh particles present in an amount of about 10% by weight and has an SRI # of about 38.

[0145] In some embodiments, the asphalt-based slurry seal base composition further includes a colorant (e.g., a pigment) present in an amount of from about 0.001% to about 50% by weight. In some embodiments, the asphalt-based slurry seal base composition does not include a colorant. In some embodiments, the asphalt-based slurry seal base composition does not include a pigment.

[0146] In some embodiments, the pigment is present in an amount of at least 0.0001%, at least 0.001%, at least 0.005%, at least 0.01%, at least 0.02%, at least 0.05%, at least 0.1%, at least 0.2%, at least 0.3%, at least 0.4%, at least 0.5%, at least 1%, at least 5%, at least 10%, at least 20%, or at least 50% by weight. In some embodiments, the pigment is present in an amount of no more than 60%, no more than 30%, no more than 20%, no more than 10%, no more than 5%, no more than 1%, no more than 0.5%, no more than 0.1%, no more than 0.05%, no more than 0.01%, or no more than 0.005% by weight. In some embodiments, the pigment is present in an amount of from about 0.001% to about 0.1%, from about 0.01% to about 1%, from about 0.5% to about 10%, from about 1% to about 10%, from about 10% to about 30%, or from about 20% to about 60% by weight. In some embodiments, the pigment is present in an amount falling within another range starting no lower than about 0.0001% by weight and ending no higher than about 60% by weight.

[0147] Generally, pigments refer to inorganic or organic colorants with little to no solubility in most application mediums e.g., compositions). For instance, in some embodiments, organic pigments comprise synthetic materials based on carbon and can be derived from petrochemicals. Typically, organic pigments are not stable at elevated temperatures and have partial solubility in strong solvents but are not soluble in water. In some embodiments, inorganic pigments comprise metal salts and oxides (e.g., natural and / or synthetic), are generally stable at elevated temperatures, and do not dissolve in solvents. Inorganic pigments have generally stable chemical structures and thus, in some embodiments, are characterized by better weatherability, dispersibility and opacity than organic pigments, albeit with lower chromaticity and tinctorial strength. Accordingly, in some embodiments, the pigment is organic or inorganic. In some embodiments, the pigment is opaque or transparent. In some embodiments, the pigment is an inorganic, opaque pigment. In some embodiments, the pigment is an organic, transparent pigment. In some embodiments, the pigment is an inorganic, transparent pigment. In some embodiments, the pigment is an organic, opaque pigment.

[0148] In some embodiments, the pigment is infrared (IR) or near-infrared (NIR) reflective. In some embodiments, the pigment is a dark-colored pigment. In some implementations, as described above, the pigment is an infrared reflective, dark pigment. Darkly pigmented asphalt-based slurry seal base compositions, or slurry seal compositions comprising the same, may be desirable for various applications where paving is typically dark, such as roads, parking lots, driveways, and / or roofing. As such, dark pigments can provide greater functionality to asphalt-based slurry seal compositions or base compositions by facilitating visual compatibility and consistency upon application to existing paved surfaces.

[0149] Advantageously, dark pigments have been reported to exhibit high infrared or near infrared reflectance in the electromagnetic spectrum. For example, in some embodiments, products containing IR-reflective dark pigments have been reported to exhibit IR reflectance on a scale comparable to that produced by white-pigmented products. See, e.g., Miller et al., 2004, “Special Infrared Reflective Pigments Make a Dark Roof Reflect Almost Like a White Roof,” in Thermal Performance of the Exterior Envelopes of Buildings, IX, proceedings of ASHRAE THERM VIII, Clearwater, FL, which is hereby incorporated herein by reference in its entirety.

[0150] In some embodiments, the infrared reflective dark pigment is present in an amount of at least 0.0001, at least 0.001%, at least 0.005%, at least 0.01%, at least 0.05%, at least at least 0.1%, at least 0.5%, at least 1%, at least 5%, at least 10%, at least 20%, at least 30%, at least 40%, or at least 50% by weight. In some embodiments, the pigment is present in an amount of no more than 60%, no more than 50%, no more than 30%, no more than 20%, no more than 10%, no more than 5%, no more than 1%, no more than 0.5%, no more than 0.1%, no more than 0.05%, no more than 0.01%, or no more than 0.001% by weight. In some embodiments, the pigment is present in an amount of from about 0.0001 to about 0.01%, from about 0.01% to about 1%, from about 0.05% to about 10%, from about 5% to about 25%, from about 20% to about 40%, or from about 30% to about 60% by weight. In some embodiments, the pigment is present in an amount falling within another range starting no lower than about 0 0001% by weight and ending no higher than about 60% by weight

[0151] In some embodiments, the presently disclosed compositions and methods include dark-pigmented asphalt-based slurry seal base compositions, or slurry seal compositions comprising the same, that maintain high solar reflectivity and can also be applied in situations where a dark color is preferred. For example, as described above, it may be desirable tomaintain a consistent color or shading when applying slurry seal compositions to paved surfaces such as roads, playgrounds, parking lots, and / or driveways.

[0152] In some embodiments, the pigment is selected from the group consisting of red iron oxides, yellow iron oxides, phthalocyanine blue, perelyene black, chromic oxides (CroCh), ferric oxides (FezCh), white titanates, yellow titanates, green titanates, brown titanates, brown iron oxides, black iron oxides, miceous iron oxides, cadmium orange, cadmium yellow, and chromium iron oxides. In some embodiments, the pigment is Chromium Green-Black Hematite. In some embodiments, the pigment includes spherical particles. Alternately or additionally, in some embodiments, the pigment includes lamellar (e.g., plate-like) particles. Generally, lamellar particles can be used to form lamellar structures in which the particles are positioned parallel but offset to each other. Without being limited to any one theory of operation, the alternating layers within such lamellar structures can impart additional barrier properties against UV and / or corrosion. For instance, in some implementations, the pigment is selected from the group consisting of miceous iron oxides, pure aluminum, coated aluminum, interference pigments (e.g., [P03] Interference Blue, [P04] Interference Gold, [P05] Interference Green, [P06] Interference Orange, [P07] Interference Red, [P08] Interference Violet), glass flakes, coated glass flakes, recycled cadmium pigments, crushed cadmium pigments, and / or ground cadmium pigments. See, for example, Dulux Protective Coatings, 2015, “MIO Coatings - What Are They?” Tech Note 5.2.1, available on the Internet at duluxprotectivecoatings.com.au / media / 1464 / 521_mio_coatings-what_are_they.pdf.

[0153] In some implementations, the pigment includes any one or more colors selected from the Lawrence Berkeley National Laboratory Pigment Database (see, for instance, Levinson et al., Heat Island Group, Lawrence Berkeley National Laboratory, available on the Internet at CoolColors.LBL.gov). In some implementations, the pigment is black and / or brown. In some such implementations, the pigment is selected from the group consisting of [B01] Carbon Black, [B02] Ivory Black, [B03] Copper Chromite Black, [B04] Mars Black, [B05] Chrome Iron Nickel Black Spinel, [B06] Chromium Green-Black Hematite, [B07] Chromium Green-Black Hematite Modified (i), [B08] Chromium Green-Black Hematite Modified (ii), [B09] Chromium Green-Black Hematite Modified (iii), [BIO] Chromium Iron Oxide (i), [Bl 1] Chromium Iron Oxide (ii), [B12] Perylene Black, [B13] Burnt Sienna, [B14] Raw Sienna, [B15] Raw Umber, [B16] Iron Titanium Brown Spinel (i), [B17] Iron Titanium Brown Spinel (ii), [Bl 8] Iron Titanium Brown Spinel (iii), [Bl 9] Manganese AntimonyTitanium Buff Rutile, [B20] Zinc Iron Chromite Brown Spinel (i), and [B21] Zinc Iron Chromite Brown Spinel (ii).

[0154] In some implementations, the pigment is blue and / or purple. In some such implementations, the pigment is selected from the group consisting of [U01] Cobalt Aluminate Blue Spinel (i), [U02] Cobalt Aluminate Blue Spinel (ii), [U03] Cobalt Aluminate Blue Spinel (iii), [U04] Cobalt Aluminum Blue, [U05] Cobalt Blue, [U06] Cerulean Blue, [U07] Cobalt Chromite Blue, [U08] Cobalt Chromite Blue-Green Spinel (i), [U09] Cobalt Chromite Blue-Green Spinel (ii), [U10] Prussian Blue, [U11] French Ultramarine Blue, [U12] Phthalo Blue (i), [U13] Phthalo Blue (ii), and [U14] Dioxazine Purple.

[0155] In some implementations, the pigment is green. In some such implementations, the pigment is selected from the group consisting of [G01] Chrome Green, [G02] Chromium Oxide Green, [G03] Chromium Green-Black Modified, [G04] Cobalt Chromite Blue-Green Spinel (iii), [G05] Cobalt Chromite Green Spinel (i), [G06] Cobalt Chromite Green Spinel (ii), [G07] Cobalt Teal, [G08] Cobalt Titanate Green Spinel (i), [G09] Cobalt Titanate Green Spinel (ii), [GIO] Phthalo Green (i), and [G11] Phthalo Green (ii).

[0156] In some implementations, the pigment is red and / or orange. In some such implementations, the pigment is selected from the group consisting of [R01] Red Iron Oxide (i), [R02] Red Iron Oxide (ii), [R03] Red Iron Oxide (iii), [R04] Red Oxide, [R05] Cadmium Orange, [R06] Aera Burnt Orange, [R07] Aera Red, [R08] Monastral Red, and [R09] Naphthol Red Light.

[0157] In some implementations, the pigment is yellow. In some such implementations, the pigment is selected from the group consisting of [Y01] Yellow Oxide, [Y02] Cadmium Yellow Light, [Y03] Chrome Yellow, [Y04] Chrome Antimony Titanium Buff Rutile (i), [Y05] Chrome Antimony Titanium Buff Rutile (ii), [Y06] Chrome Antimony Titanium Buff Rutile (iii), [Y07] Chrome Titanate Yellow, [Y08] Nickel Antimony Titanium Yellow Rutile (i), [Y09] Nickel Antimony Titanium Yellow Rutile (ii), [Y10] Nickel Antimony Titanium Yellow Rutile (iii), [Yl l] Nickel Titanate Yellow, [Y12] Primer, [Y13] Yellow Medium Azo, [Y14] Yellow Orange Azo, and Bismuth Vanadate [PY184],

[0158] In some implementations, the pigment is pearlescent. In some such implementations, the pigment is selected from the group consisting of [P01] Bright Gold (Pearlescent), [P02] Bright White (Pearlescent), [P03] Interference Blue, [P04] Interference Gold, [P05] Interference Green, [P06] Interference Orange, [P07] Interference Red, [P08]Interference Violet, [P09] Iridescent White, [PIO] Brass (Pearlescent), [Pl 1] Bright Bronze (Pearlescent), [Pl 2] Bright Copper (Pearlescent), [P13] Rich Bronze, and [Pl 4] Russet (Pearlescent).

[0159] Pigments suitable for use in the present disclosure are further described in, e.g., Levinson etal., 2005, “Solar spectral properties of pigments, or how to design a cool nonwhite coating,” presented at Cool Roofing — Cutting Through the Glare, available on the Internet at coolcolors. Ibl.gov / assets / docs / OtherT alksZHowToDesignACoolNonwhiteCoating.pdf

[0160] V. Reducing atmospheric pollutants with an asphalt-based slurry seal base composition

[0161] It has been found that titanium dioxide (TiCh) nanoparticles can absorb the ultraviolet component of sunlight, acting as a catalyst to form reactive hydroxyl (OH) radicals in the presence of atmospheric moisture. These radicals have been found to oxidize and destroy most pollutant molecules.

[0162] The present technology, in some embodiments, is a method of reducing nitrogen oxides (NOx), volatile organic compounds (VOC), and other pollutants by an asphalt-based slurry seal composition or base composition comprising high levels of titanium oxide particles. The titanium oxide particles form a photocatalytic layer within the asphalt surface that oxidizes NOx and other pollutants when the treated asphalt surface is exposed to ultraviolet sunlight and airborne H2O molecules. This process chemically alters the aforementioned pollutants, rendering them non-hazardous to the environment.

[0163] TiO2 is a semiconductor material that, when exposed to ultraviolet (UV) radiation, as from sunlight, expels an electron from the valence band to the conduction band, leaving behind a positively charged hole. In the presence of water, as in atmospheric humidity, these positively charged holes create hydroxyl radicals as shown:OH I h 3 *OH

[0164] The hydroxyl radicals in turn oxidize nitrogen oxides as follows:

[0165] Other reactive effects occur with volatile organic compounds (VOC) and some other pollutants. Since TiO2 functions as a catalyst and is not consumed in the reaction, thephotocatalytic effect continues. If the TiCh is in place at the surface of an asphalt roadway, it removes a significant quantity of NOx and VOCs from the environment nearest their source.

[0166] In one aspect, the present disclosure provides an asphalt-based slurry seal base composition, and / or a slurry seal composition comprising the same, that reduces pollutants. In some embodiments, the asphalt-based slurry seal base composition, and / or the slurry seal composition comprising the same, reduces atmospheric pollutants including an amount of nitrogen oxides (NOx) and volatile organic compounds (VOC) via photocatalytic reactions. In some embodiments, the asphalt-based slurry seal base composition, and / or the slurry seal composition comprising the same, is highly solar reflective and reduces asphalt surface temperatures and pollutants. In some embodiments, the asphalt-based slurry seal base composition, and / or the slurry seal composition comprising the same, has a SR (Solar Reflectivity) # of at least about 0.33 and reduces asphalt surface temperatures and pollutants.

[0167] In some embodiments, the titanium dioxide can act as a catalyst, which reacts with nitrogen oxides and other pollutants to chemically alter them into non-hazardous or less hazardous materials through photocatalytic oxidation (PCO) and / or reduction reaction.

[0168] In some embodiments, the techniques disclosed in Berdahl and Akbari, 2008, “Evaluation of Titanium Dioxide as a Photocatalyst for Removing Air Pollutants,” California Energy Commission, PIER Energy-Related Environmental Research Program, CEC-500- 2007-112, the references cited therein, and the appendices thereof, can be used to determine the amount by which the compositions of the present disclosure can reduce air pollutants such as nitrogen oxide.

[0169] In some embodiments, the TiCh particles are doped with one or more modifiers selected from the group consisting of sulfur, vanadium, zinc, silver, aluminum, copper, iron, manganese, nickel, chromium, tin, barium, strontium, magnesium, cobalt, boron, molybdenum, tungsten, carbon, phosphorus, platinum, gold, and nitrogen.

[0170] Generally, the crystal structure of a titanium dioxide particle can influence its reflective and photocatalytic effects. In some embodiments, anatase is a more effective photocatalyst than rutile TiO2 with the disadvantage of decreased reflectivity and fluorescence. One way to balance these effects is by blending grades and sources of titanium to achieve the desired effects. An alternative way is by “doping” or introducing alternative materials to the titanium dioxide matrix to tune the electron band gap of the crystal. This has the effect of altering the electron and electron hole densities across the titanium crystal latticeto balance reflectivity and photocatalytic effect (among others) in a single particle without the need for blending or other optimizations. See, for example, Thurston, “Band Gap Engineering of Titania Systems Purposed for Photocatalytic Activity,” (2017), Electronic Theses and Dissertations, 1071; egrove.olemiss.edu / etd / 1071; available on the Internet at egrove, olemiss.edu / cgi / viewcontent. cgi?article=2070&context=etd#:~:text=In%20its%20ana tase%20form%2C%20titania,band%20gap%20nearing%203.2%20eV.

[0171] VI. Kits comprising asphalt-based slurry seal base compositions

[0172] Another aspect of the present disclosure provides a kit, comprising any of the asphalt-based slurry seal base compositions disclosed herein (see, for example, any of the compositions described in the section entitled “Asphalt-based slurry seal base compositions,” above).

[0173] In some embodiments, the kit includes an asphalt-based slurry seal base composition comprising an asphalt emulsion, water, a polymer emulsion, and a solar reflective additive. In some embodiments, the kit further includes instructions for mixing the asphalt-based slurry seal base composition with an aggregate, thereby obtaining an asphaltbased slurry seal composition. In some embodiments, the kit further includes instructions for applying the asphalt-based slurry seal composition to an asphalt surface.

[0174] In some embodiments, the asphalt-based slurry seal base composition is free of an aggregate.

[0175] In some embodiments, the applying the asphalt-based slurry seal composition to an asphalt surface is performed at point of use. Suitable non-limiting embodiments for applying asphalt-based compositions to surfaces contemplated for use in the present disclosure are described elsewhere herein, for example, in the section entitled “Methods of treating asphalt surface with asphalt-based compositions,” below.

[0176] In some embodiments, the mixing the asphalt-based slurry seal base composition with an aggregate is performed at point of use. Suitable non-limiting embodiments for mixing asphalt-based compositions contemplated for use in the present disclosure are described elsewhere herein, for example, in the section entitled “Preparation of asphalt-based compositions,” below.

[0177] Any of the embodiments for asphalt-based slurry seal base compositions disclosed herein, e.g., in the section entitled “Asphalt-based slurry seal base compositions,” or anysubstitutions, modifications, and / or combinations thereof, are similarly contemplated for use in the presently disclosed kits, as will be apparent to one skilled in the art.

[0178] For instance, as described above, in some embodiments, the solar reflective additive comprises a plurality of titanium oxide (TiCh) particles present in an amount of from about 5% to about 60% by weight. Alternatively or additionally, in some embodiments, the solar reflective additive comprises an infrared reflective dark pigment present in an amount of from about 0.001% to about 50% by weight. In some embodiments, the asphalt emulsion is cationic. In some embodiments, the asphalt emulsion is present in an amount of from about 5% to about 40% by weight, the water is present in an amount of from about 15% to about 45% by weight, and the polymer emulsion is present in an amount of from about 1% to about 35% by weight.

[0179] In some embodiments, the asphalt-based slurry seal base composition is provided in a receptacle, such as a pail, tote, or bucket. In some embodiments, the receptacle is of any size or shape suitable for containing the asphalt-based slurry seal base composition. In some embodiments, the receptacle is hand-carried or affixed to a paving apparatus, such as an asphalt paver.

[0180] In some embodiments, the kit further includes aggregate. Example non-limiting embodiments for aggregate contemplated for use in the present disclosure are described elsewhere herein, for example, in the section entitled “Aggregates,” below.

[0181] In some embodiments, the kit further includes fine aggregates (“fines”). Alternatively or additionally, in some embodiments, the kit further includes one or more of clay, sand, an extender (e.g., filler), and fiber. Example non-limiting embodiments for clay, sand, extenders, and / or fibers contemplated for use in the present disclosure are described elsewhere herein, for example, in the sections entitled “Clay,” “Sand,” “Extenders,” and “Fiber,” below.

[0182] Aggregates

[0183] In some embodiments, the kit further comprises aggregate. In some embodiments, the kit does not comprise aggregate.

[0184] In some embodiments, the kit further includes instructions for mixing the asphaltbased slurry seal base composition with an aggregate, thereby obtaining an asphalt-based slurry seal composition such that the aggregate is present in an amount of about 0.1% to about 25% by weight.

[0185] In some embodiments, the instructions for mixing are such that the aggregate is present in an amount of at least 0.01%, at least 0.05%, at least 0.1%, at least 0.5%, at least 1%, at least 5%, at least 10%, at least 15%, at least 20%, at least 25%, at least 30%, at least 35%, at least 40%, or at least 50% by weight. In some embodiments, the instructions for mixing are such that the aggregate is present in an amount of no more than 60%, no more than 50%, no more than 40%, no more than 30%, no more than 25%, no more than 20%, no more than 10%, or no more than 5% by weight. In some embodiments, the instructions for mixing are such that the aggregate is present in an amount of from about 0.1% to about 5%, from about 1% to about 10%, from about 5% to about 15%, from about 3% to about 20%, from about 0.05% to about 25%, or from about 10% to about 60%, by weight. In some embodiments, the instructions for mixing are such that the aggregate is present in an amount falling within another range starting no lower than about 0.01% by weight and ending no higher than about 60% by weight.

[0186] In some embodiments, the aggregate has a particle size mesh of from about mesh number 300 to about 1 inch.

[0187] As used herein, mesh number refers to a sieve designation that corresponds to a sieve opening size. Higher mesh numbers generally refer to smaller aggregate size (e.g., mesh number decreases as aggregate size increases, and mesh number increases as aggregate size decreases). Thus, a mesh number of 400 will indicate aggregate that passes through a sieve opening of 0.037 millimeters (37 microns), while a mesh number of 5 will indicate aggregate that passes through a sieve opening of 4 millimeters (4000 microns). Sieve opening sizes of 0.25 inches or larger are designated by their actual size in inches; for instance, a mesh size of 1 / 4 inch indicates aggregate that passes through a sieve opening of 0.25 inches, a mesh size of 1 / 2 inch indicates aggregate that passes through a sieve opening of 0.5 inches, and a mesh size of 1 inch indicates aggregate that passes through a sieve opening of 1 inch. Mesh numbers are further described, for instance, in “Particle Size Conversion Table,” Millipore Sigma, available on the Internet at sigmaaldrich.com / US / en / support / calculators-and-apps / particle-size-conversion-table; and “Sieve Sizes,” Gilson, available on the Internet at globalgilson.com / blog / sieve-sizes, each of which is hereby incorporated herein by reference in its entirety.

[0188] In some embodiments, the aggregate has a particle size mesh of no higher than mesh number 20 (e.g., large aggregate). In some embodiments, the aggregate has a particle size mesh of from about mesh number 20 to about 1 inch. In some embodiments, theaggregate has a particle size mesh of from about 1 / 4 inch to about 1 inch. In some embodiments, the aggregate has a particle size mesh selected from the group consisting of 1 / 4 inch, 1 / 2 inch, and 3 / 4 inch.

[0189] In some embodiments, the aggregate has a particle size mesh of no higher than mesh number 20, no higher than mesh number 10, or no higher than mesh number 5. In some embodiments, the aggregate has a particle size mesh of at least 1 / 4 inch, at least 3 / 8 inch, at least 1 / 2 inch, at least 5 / 8 inch, at least 3 / 4 inch, at least 7 / 8 inch, or at least 1 inch. In some embodiments, the aggregate has a particle size mesh of no more than 4 inch, no more than 1 inch, no more than 3 / 4 inch, no more than 1 / 2 inch, or no more than 1 / 4 inch. In some embodiments, the aggregate has a particle size mesh of at least mesh number 5 or at least mesh number 10. In some embodiments, the aggregate has a particle size mesh of from about mesh number 20 to about mesh number 5, from about mesh number 5 to about 1 / 2 inch, from about 1 / 4 inch to about 1 inch, or from about 1 / 2 inch to about 4 inch. In some embodiments, the aggregate has a particle size mesh that falls within another range starting no smaller than mesh number 20 and ending no larger than 4 inch.

[0190] In some embodiments, the aggregate has a particle size mesh of from about mesh number 300 to about mesh number 20 (e.g., small aggregate). In some embodiments, the aggregate has a particle size mesh of at least 20, at least 30, at least 40, at least 50, at least 60, at least 70, at least 80, at least 90, at least 100, at least 150, or at least 200. In some embodiments, the aggregate has a particle size mesh of no more than 300, no more than 200, no more than 100, no more than 70, no more than 50, or no more than 30. In some embodiments, the aggregate has a particle size mesh of from about 20 to about 50, from about 30 to about 70, from about 50 to about 150, from about 70 to about 300, or from about 150 to about 300. In some embodiments, the aggregate has a particle size mesh that falls within another range starting no lower than 20 and ending no higher than 300.

[0191] In some embodiments, the aggregate comprises low-density aggregate. Low- density aggregate advantageously provides improved portability and versatility for kits, such as for ease of transport, lowered costs for shipping and packaging, and easier handling for personal or individual use.

[0192] In some embodiments, the aggregate has a density of no more than 1 g / cm3. In some embodiments, the aggregate has a density of from about 0.1 g / cm3to about 3 g / cm3.

[0193] In some embodiments, the aggregate has a density of no more than 10, no more than 5, no more than 2, no more than 1, no more than 0.5, no more than 0.1, no more than 0.05, or no more than 0.01 g / cm3. In some embodiments, the aggregate has a density of at least 0.001, at least 0.01, at least 0.05, at least 0.1, at least 0.5, at least 1, or at least 5 g / cm3. In some embodiments, the aggregate has a density of from about 0.001 to about 0.05, from about 0.01 to about 0.5, from about 0.5 to about 2, from about 1 to about 5, or from about 5 to about 10 g / cm3. In some embodiments, the aggregate has a density that falls within another range starting no lower than 0.001 g / cm3and ending no higher than 10 g / cm3.

[0194] In some embodiments, the aggregate comprises expanded slate fines.

[0195] In some embodiments, the aggregate is selected from the group consisting of slate, baghouse fines (rock dust), fly ash, quartz sand, silica sand, calcium carbonite, clay, paper fiber, fiberglass fiber, limestone aggregate, copper slag, iron slag, steel slag, aluminum oxide, recycled roofing shingles, ground leather, ground rubber, nylon flock, plastic flock, glass beads, granite aggregate, ground tire rubber, ground up tennis balls, recycled cardboard, recycled glass, wood chips, wood fiber, walnut shells, apricot shells, pecan shells, corn cobs, rice hulls, scrabbled stone, pumice, basaltic aggregate, perlite, vermiculite, marble white, melamine, urea, calcinated bauxite, and / or any mixture thereof. In some embodiments, the aggregate is slate. In some embodiments, the aggregate is limestone aggregate. For instance, in some embodiments, the aggregate is any aggregate suitable for the preparation of asphaltbased compositions, as will be apparent to one skilled in the art. See, for example, Asphalt Paving Association of Iowa, “Asphalt Paving Design Guide,” available on the Internet at apai.net / Files / content / DesignGuide / AsphaltCompositeSmFst.pdf; Composition Materials Co., Inc., “Fillers, Fibers, and Powders,” available on the Internet at compomat.com / additional-fillers-extenders / ; Composition Materials Co., Inc., “Aluminum Oxide Abrasive,” available on the Internet at compomat.com / aluminum-oxide-abrasive / ;Composition Materials Co., Inc., “Bio-Based Fillers,” available on the Internet at compomat.com / bio-based-fillers / ; and Composition Materials Co., Inc., “Recycled Fillers,” available on the Internet at compomat.com / plastic-media-fillers / .

[0196] In some embodiments, the aggregate comprises a material that is similar or identical in type to a material used for one or more other components disclosed herein (e.g., extender, sand, etc.).

[0197] In some embodiments, the aggregate includes a mixture of materials. For example, in some embodiments, the aggregate comprises two or more types of materials selected from the group consisting of slate, baghouse fines (rock dust), fly ash, quartz sand, silica sand, calcium carbonite, clay, paper fiber, fiberglass fiber, limestone aggregate, copper slag, iron slag, steel slag, aluminum oxide, recycled roofing shingles, ground leather, ground rubber, nylon flock, plastic flock, glass beads, granite aggregate, ground tire rubber, ground up tennis balls, recycled cardboard, recycled glass, wood chips, wood fiber, walnut shells, apricot shells, pecan shells, corn cobs, rice hulls, scrabbled stone, pumice, basaltic aggregate, perlite, vermiculite, marble white, melamine, urea, calcinated bauxite, and / or any mixture thereof. In some implementations, the aggregate is a mixture of materials, one or more of which is similar or identical in type to a material used for one or more other components disclosed herein (e.g., extender, sand, etc.). In some embodiments, the aggregate comprises two or more, three or more, four or more, five or more, six or more, seven or more, eight or more, nine or more, ten or more, eleven or more, twelve or more, thirteen or more, fourteen or more, fifteen or more, or twenty or more types of aggregate.

[0198] Advantageously, in some embodiments, the aggregate includes a material that has anti-skid properties. For example, in some embodiments, the aggregate includes a material that imparts improved anti-skid properties to the asphalt-based slurry seal base composition, or a slurry seal composition comprising the same. As an example, calcinated bauxite can be used in asphalt-based high friction surface treatments (HFST) for problematic turns and inclines. Additional materials that impart anti-skid properties to asphalt-based compositions are disclosed further herein (see, e.g., the section entitled, “Sand,” below).

[0199] In some embodiments, the aggregate is selected based on an ability to increase or decrease the hardness of the asphalt-based slurry seal base composition or a slurry seal composition comprising the same. For instance, harder aggregates will impart increased hardness to asphalt-based compositions.

[0200] Clay

[0201] In some embodiments, the kit further includes clay. In some embodiments, the kit does not include clay.

[0202] In some embodiments, the kit further includes instructions for mixing the asphaltbased slurry seal base composition with clay, thereby obtaining an asphalt-based slurry seal composition such that the clay is present in an amount of about 1% to about 10% by weight.

[0203] In some embodiments, the instructions for mixing are such that the clay is present in an amount of at least 1%, at least 2%, at least 3%, at least 4%, at least 5%, at least 10%, at least 15%, at least 20%, at least 25%, or at least 30% by weight. In some embodiments, the instructions for mixing are such that the clay is present in an amount of no more than 40%, no more than 30%, no more than 20%, no more than 10%, or no more than 5% by weight. In some embodiments, the instructions for mixing are such that the clay is present in an amount of from about 1% to about 40%, from about 1% to about 10%, from about 5% to about 20%, from about 10% to about 30%, from about 2% to about 6%, from about 3% to about 5%, or from about 3% to about 12% by weight. In some embodiments, the instructions for mixing are such that the clay is present in an amount falling within another range starting no lower than about 1% by weight and ending no higher than about 40% by weight.

[0204] In some embodiments, the clay comprises a silicate mineral. Silicate minerals generally refer to rock-forming minerals comprising silicate groups. Various groups of silicate minerals include nesosilicates, sorosilicates, cyclosilicates, inosilicates (single chain), inosilicates (double chain), phyllosilicates, and tectosilicates. In particular, phyllosilicates refer to a broad category of minerals including such clay minerals as antigorite, chrysotile, lizardite, halloysite, kaolinite, pyrophyllite, talc, illite, chlorite, vermiculite, palygorskite, biotite, fuchsite, muscovite, phlogopite, lepidolite, margarite, glauconite, sepiolite and montmorillonite, the main component of bentonite. See, e.g., Nelson, “Phyllosilicates (Micas, Chlorite, Talc, & Serpentine),” 2015, available on the Internet at tulane.edu / ~sanelson / eens211 / phyllosilicates.htm, which is hereby incorporated herein by reference in its entirety.

[0205] Accordingly, in some implementations, the clay comprises phyllosilicates. In some embodiments, the clay is selected from the group consisting of bentonite clay, ball clay, fire clay, sepiolite clay, illite, montmorillonite, hawthorn clay, American colloid clay, hickory clay, Lincoln clay, and / or any mixture thereof. In some embodiments, the clay is Bentonite clay. In some embodiments, the clay is sepiolite clay.

[0206] In some embodiments, the clay is a single type of clay. In some embodiments, the clay comprises more than one type of clay e.g., bentonite clay and sepiolite clay). In some implementations, the clay includes a mixture of clays selected from the group consisting of bentonite clay, ball clay, fire clay, sepiolite clay, illite, montmorillonite, hawthorn clay, American colloid clay, hickory clay, and / or Lincoln clay. In some embodiments, the clay comprises two or more, three or more, four or more, five or more, six or more, seven or more,eight or more, nine or more, ten or more, eleven or more, twelve or more, thirteen or more, fourteen or more, fifteen or more, or twenty or more types of clay.

[0207] Any clay suitable for the preparation of asphalt-based compositions is contemplated in the amounts disclosed herein for the compositions of the present disclosure, as will be apparent to one skilled in the art.

[0208] Sand

[0209] In some embodiments, the kit further comprises sand. In some embodiments, the kit does not comprise sand.

[0210] In some embodiments, the kit further includes instructions for mixing the asphaltbased slurry seal base composition with sand, thereby obtaining an asphalt-based slurry seal composition such that the sand is present in an amount of about 3% to about 25% by weight.

[0211] In some embodiments, the instructions for mixing are such that the sand is present in an amount of at least 1%, at least 5%, at least 10%, at least 15%, at least 20%, at least 25%, or at least 30% by weight. In some embodiments, the instructions for mixing are such that the sand is present in an amount of no more than 40%, no more than 30%, no more than 20%, no more than 15%, no more than 10%, or no more than 5% by weight. In some embodiments, the instructions for mixing are such that the sand is present in an amount of from about 1% to about 40%, from about 2% to about 15%, from about 5% to about 20%, from about 10% to about 30%, from about 4% to about 18%, from about 30% to about 40%, or from about 3% to about 12% by weight. In some embodiments, the instructions for mixing are such that the sand is present in an amount falling within another range starting no lower than about 1% by weight and ending no higher than about 40% by weight.

[0212] In some embodiments, the sand has a particle size mesh of at least 10, at least 12, at least 16, at least 20, at least 30, at least 40, at least 50, at least 60, at least 70, at least 80, at least 90, at least 100, at least 150, at least 200, or at least 300. In some embodiments, the sand has a particle size mesh of no more than 400, no more than 300, no more than 200, no more than 100, no more than 70, no more than 50, or no more than 40. In some embodiments, the sand has a particle size mesh of from about 12 to about 50, from about 16 to about 70, from about 20 to about 40, from about 70 to about 300, from about 100 to about 200, or from about 150 to about 300. In some embodiments, the sand has a particle size mesh that falls within another range starting no lower than 10 and ending no higher than 400.

[0213] In some embodiments, the sand comprises a material that is similar or identical in type to a material used for one or more other components disclosed herein (e.g., aggregate, extender, etc ).

[0214] In some embodiments, the sand is a mixture of materials. For instance, in some implementations, the sand is a mixture of materials, one or more of which is similar or identical in type to a material used for one or more other components disclosed herein e.g., aggregate, extender, etc.). In some embodiments, the sand comprises two or more, three or more, four or more, five or more, six or more, seven or more, eight or more, nine or more, ten or more, eleven or more, twelve or more, thirteen or more, fourteen or more, fifteen or more, or twenty or more types of sand.

[0215] In some embodiments, the sand is a mixture of materials having different particle size (e.g., as determined by a particle size mesh). In some embodiments, the sand is a mixture of two or more, three or more, four or more, five or more, six or more, seven or more, eight or more, nine or more, ten or more, eleven or more, twelve or more, thirteen or more, fourteen or more, fifteen or more, or twenty or more different particle sizes. In some embodiments, the sand has a uniform particle size as determined by a particle size mesh.

[0216] Any sand suitable for the preparation of asphalt-based compositions is contemplated in the amounts disclosed herein for the compositions of the present disclosure, as will be apparent to one skilled in the art.

[0217] Advantageously, in some embodiments, the sand provides anti-skid properties to the asphalt-based slurry seal base composition, or a slurry seal composition comprising the same. Anti-skid properties can be determined using standardized testing protocols measured at a predetermined speed. For instance, ASTM standard method E274 is used to determine skid numbers SN40R and SN40S at 64 km / h (40 mph) using ribbed tires and smooth tires, respectively (see, e.g., ASTM E274 / E274M-11, 2011; and Fwa, 2017, “Skid resistance determination for pavement management and wet-weather road safety,” Int J Trans Sci Tech 6(3): 217-227, each of which is hereby incorporated herein by reference in its entirety.

[0218] Generally, measurements of pavement friction are used for pavement management purposes, such as monitoring pavement conditions and performing necessary maintenance for safety, efficiency, comfort, and durability of roads and other surfaces under various weather conditions. Skid resistance refers to the force developed when a locked tire (e.g. , a tire that is prevented from rotating) slides on a paved surface. Higher skid resistance decreases the riskof vehicle skidding and hydroplaning upon surfaces, thus reducing accidents caused by, e.g., weather conditions and / or emergency braking.

[0219] While safety parameters vary between regions (e.g., states, countries, etc.), a common practice for highway agencies is to specify a minimum skid resistance for pavement management and maintenance. Accordingly, the minimum standard in some jurisdictions includes a skid number of at least 20 (e.g., 23 to 30 on highways and other high-speed surfaces). See, e.g., Fwa, 2017, “Skid resistance determination for pavement management and wet-weather road safety,” Int J Trans Sci Tech 6(3): 217-227.

[0220] Accordingly, in some embodiments, the compositions and methods of the present disclosure provide an asphalt-based slurry seal base composition, or a slurry seal composition comprising the same, having a skid number (SN40R) of at least about 25. In some embodiments, the asphalt-based slurry seal base composition, or a slurry seal composition comprising the same, has an SN40R of at least 20, at least 25, at least 30, at least 35, at least 40, at least 45, at least 50, or at least 60. In some embodiments, the asphalt-based slurry seal base composition, or a slurry seal composition comprising the same, has an SN40R of no more than 70, no more than 60, no more than 55, no more than 50, no more than 45, no more than 40, no more than 35, no more than 30, or no more than 25. In some embodiments, the asphalt-based slurry seal base composition, or a slurry seal composition comprising the same, has an SN40R of from about 20 to about 40, from about 25 to about 60, from about 22 to about 35, from about 30 to about 45, or from about 35 to about 65. In some embodiments, the asphalt-based slurry seal base composition, or a slurry seal composition comprising the same, has an SN40R that falls within another range starting no lower than 20 and ending no higher than 70.

[0221] Another method of measuring pavement safety includes determining pavement friction values. Generally, higher friction values are inversely correlated with vehicle crash rates, with several studies recommending a minimum friction coefficient of 0.40 measured at 30 mph or higher. In some embodiments, friction coefficients are related to the micro-texture of paving materials and are measured using a device for microtexture (e.g., a circular track meter (CTM) and / or a dynamic friction test (DFT)). See, for example, Hall el al., “Guide for Pavement Friction,” 2006, NCHRP Project 01-43, which is hereby incorporated herein by reference in its entirety. For instance, the DFT is a portable device including a horizontal spinning disk fitted with three spring-loaded rubber slides. The disk is rotated at tangential velocities of up to 80 kph while in contact with a surface over which water is flowed. Thecoefficient of friction on the wet surface is continually measured as the disk slows, starting from speeds of 20-80 kph. Circular track meters, the dynamic friction test, and friction values suitable for use in the present disclosure are further described, for instance, in Wasilewska et al., “Evaluation of skid resistance using CTM, DFT and SRT-3 devices,” 2016, Transportation Research Procedia 14, 3050-3059, which is hereby incorporated herein by reference in its entirety.

[0222] Accordingly, in some embodiments, the asphalt-based slurry seal base composition, or a slurry seal composition comprising the same, has a dynamic friction test (DFT) value of at least about 0.35.

[0223] In some embodiments, the asphalt-based slurry seal base composition, or a slurry seal composition comprising the same, has a DFT value of at least about 0.20, at least about 0.25, at least about 0.30, at least about 0.35, at least about 0.40, at least about 0.45, at least about 0.50, at least about 0.55, at least about 0.60, or at least about 0.65. In some embodiments, the asphalt-based slurry seal base composition, or a slurry seal composition comprising the same, has a DFT value of no more than 0.75, no more than 0.70, no more than 0.65, no more than 0.60, no more than 0.50, no more than 0.40, no more than 0.35, or no more than 0.30. In some embodiments, the asphalt-based slurry seal base composition, or a slurry seal composition comprising the same, has a DFT value of from about 0.20 to about 0.50, from about 0.20 to about 0.70, from about 0.30 to about 0.55, from about 0.35 to about 0.50, or from about 0.40 to about 0.48. In some embodiments, the asphalt-based slurry seal base composition, or a slurry seal composition comprising the same, has a DFT value that falls within another range starting no lower than 0.20 and ending no higher than 0.75.

[0224] Moreover, in some embodiments, the sand provides a coloring effect to the asphaltbased composition. In some embodiments, for example, the sand provides a lightening effect or a darkening effect to the color of the asphalt-based composition. In some embodiments, the sand imparts a particular color to the asphalt-based composition. For instance, in some implementations, the sand is a light color (e.g., white, off-white, beige, yellow, or a similar color), such that the addition of sand to the asphalt-based composition results in a lighter colored composition (e.g., grey and / or salt-and-pepper). Advantageously, a lighter colored sand can increase the solar reflectivity of the asphalt-based slurry seal base composition, or a slurry seal composition comprising the same, upon application to a surface.

[0225] Extenders

[0226] In some embodiments, the kit further comprises an extender. In some embodiments, the kit does not comprise an extender.

[0227] In some embodiments, the kit further includes instructions for mixing the asphaltbased slurry seal base composition with an extender, thereby obtaining an asphalt-based slurry seal composition such that the extender is present in an amount of from about 0.5% to about 40% by weight.

[0228] In some embodiments, the instructions for mixing are such that the extender is present in an amount of at least 0.01%, at least 0.05%, at least 0.1%, at least 0.5%, at least 1%, at least 5%, at least 10%, at least 15%, at least 20%, or at least 25% by weight. In some embodiments, the instructions for mixing are such that the extender is present in an amount of no more than 30%, no more than 25%, no more than 20%, no more than 15%, no more than 10%, no more than 5%, or no more than 1% by weight. In some embodiments, the instructions for mixing are such that the extender is present in an amount of from about 0.1% to about 5%, from about 1% to about 5%, from about 5% to about 10%, from about 8% to about 20%, from about 0.05% to about 3%, or from about 0.5% to about 8%, by weight. In some embodiments, the instructions for mixing are such that the extender is present in an amount falling within another range starting no lower than about 0.01% by weight and ending no higher than about 30% by weight.

[0229] In some embodiments, the extender is selected from the group consisting of marble white, granulated calcium carbonate, kaolin, kaolinite, imerys talcs, Grace SYLO WHITE™, Burgess Pigment Company kaolins, limestone dust, hydrated lime, asbestos, fuller’s earth, diatomaceous earth, and / or any mixture thereof. In some embodiments, the extender is any extender suitable for the preparation of asphalt-based compositions, as will be apparent to one skilled in the art. See, for example, Kallas et al., 1962, “Mineral Fillers in Asphalt Paving Mixtures,” Highway Research Board Bulletin, 329: 6-29; and Remisova, 2015, “Study of mineral filler effect on asphalt mixtures properties,” Bituminous Mixtures & Pavements VI, doi: 10.1201 / b 18538-9, each of which is hereby incorporated herein by reference in its entirety.

[0230] Generally, extenders are also referred to herein as fillers. Accordingly, in some embodiments, the extender includes any material suitable for use as a filler for asphalt-based compositions, as will be apparent to one skilled in the art. In some embodiments, theextender comprises a material that is similar or identical in type to a material used for one or more other components disclosed herein (e.g., aggregate, sand, etc.).

[0231] In some embodiments, extender includes a mixture of materials. For example, in some embodiments, the extender comprises two or more types of materials selected from the group consisting of marble white, granulated calcium carbonate, kaolin, kaolinite, imerys talcs, Grace SYLOWHITE™, Burgess Pigment Company kaolins, limestone dust, hydrated lime, asbestos, diatomaceous earth, and / or fuller’s earth. In some embodiments, the extender comprises two or more, three or more, four or more, five or more, six or more, seven or more, eight or more, nine or more, ten or more, eleven or more, twelve or more, thirteen or more, fourteen or more, fifteen or more, or twenty or more types of materials. In some implementations, the extender includes a mixture of materials, one or more of which is similar or identical in type to a material used for one or more other components disclosed herein e.g., aggregate, sand, etc.).

[0232] Extenders can be used to supplement other components and materials in asphaltbased compositions, thus advantageously reducing the overall cost of the composition. For instance, in some implementations, the asphalt-based slurry seal base composition includes a lower proportion by weight of TiCh particles, where the difference in composition is made up by the inclusion of additional extenders.

[0233] Any extenders and / or fillers suitable for the preparation of asphalt-based compositions is contemplated in the amounts disclosed herein for the compositions of the present disclosure, as will be apparent to one skilled in the art.

[0234] Fiber

[0235] In some embodiments, the kit further comprises fiber. In some embodiments, the kit does not comprise fiber.

[0236] In some embodiments, the kit further includes instructions for mixing the asphaltbased slurry seal base composition with fiber, thereby obtaining an asphalt-based slurry seal composition such that the fiber is present in an amount of from about 0.1% to about 5% by weight.

[0237] In some embodiments, the instructions for mixing are such that the fiber is present in an amount of at least 0.01%, at least 0.05%, at least 0.1%, at least 0.5%, at least 1%, at least 5%, at least 10%, at least 15%, or at least 20% by weight. In some embodiments, the instructions for mixing are such that the fiber is present in an amount of no more than 25%,no more than 20%, no more than 15%, no more than 10%, no more than 5%, no more than 1%, or no more than 0.5% by weight. In some embodiments, the instructions for mixing are such that the fiber is present in an amount of from about 0.05% to about 5%, from about 0.1% to about 15%, from about 0.2% to about 10%, from about 0.3% to about 2%, from about 0.4% to about 1%, or from about 0.5% to about 3%, by weight. In some embodiments, the instructions for mixing are such that the fiber is present in an amount falling within another range starting no lower than about 0.01% by weight and ending no higher than about 25% by weight.

[0238] In some embodiments, the fiber is basalt fiber, Kevlar, cellulose fiber, fiberglass, lignin fiber, polyester fiber, asbestos fiber, carbon fiber, and / or diatomite fiber. In some embodiments, the fiber is a polymeric fiber (e.g., polyethylene-based fiber and / or polypropylene-based fiber). For instance, in some embodiments, the fiber is any fiber suitable for the preparation of asphalt-based compositions, as will be apparent to one skilled in the art. See, for example, Guo etal., “Evaluation of the Effect of Fiber Type, Length, and Content on Asphalt Properties and Asphalt Mixture Performance,” Materials (Basel), 2020; 13(7): 1556, doi: 10.3390 / mal3071556, which is hereby incorporated herein by reference in its entirety. In some embodiments, the fiber is recycled paper or fabric.

[0239] In some embodiments, the fiber includes a mixture of materials. For instance, in some embodiments, the fiber comprises two or more types of materials selected from the group consisting of basalt fiber, Kevlar, cellulose fiber, fiberglass, lignin fiber, polyester fiber, asbestos fiber, carbon fiber, and / or diatomite fiber. In some embodiments, the fiber comprises two or more, three or more, four or more, five or more, six or more, seven or more, eight or more, nine or more, ten or more, eleven or more, twelve or more, thirteen or more, fourteen or more, fifteen or more, or twenty or more types of materials.

[0240] Advantageously, as described above, fibers provide a thick and / or creamy consistency to the asphalt-based compositions disclosed herein. The fiber, in some implementations, increases the stability of the composition during storage and transportation, as well as the ease and efficacy with which the asphalt-based compositions can be applied to a surface. In particular, fibers in solution can impart non-Newtonian properties to the product, allowing the composition to flow like a liquid under stress while returning to a solidlike state once force is released. Thus, in some implementations, fiber imparts “dry” properties (e.g., resistance to stretching, formation of a mat-like structure in the composition to improve durability, etc.) as well as “wet” properties to the composition. As such, in someimplementations, the asphalt-based compositions are stable during storage (e.g., in a vessel such as a can), during application (e.g., via pumping, squeegeeing, or spraying), and after application e.g., while drying on a surface) In other words, the asphalt-based compositions are capable of behaving like a solid under low shear or minimal external forces (e.g., such that it will not run off the road into the sewers) and like a liquid under some mechanical force, allowing it to flow, e.g., to be sprayed or pumped, during application. In some embodiments, the improved stability and applicability is due in part to the inclusion of fiber in the asphalt-based compositions.

[0241] VII. Preparation of asphalt-based compositions

[0242] In some embodiments, the present disclosure provides methods, kits, and / or instructions thereof, for preparing an asphalt-based slurry seal base composition, or an asphalt-based slurry seal composition comprising the same, by mixing together a plurality of the components disclosed herein (e.g., selected from the group consisting of TiCh particles, an asphalt emulsion, water, polymer emulsion, biocide, dispersant, plasticizer, and / or dirtresistance additive). In some embodiments, an asphalt-based slurry seal composition and / or an asphalt-based slurry seal base composition is prepared by mixing together at least an asphalt emulsion, water, a polymer emulsion, and a solar reflective additive, such as a plurality of titanium oxide (TiCh) particles present in an amount of about 10% to about 60% by weight or an infrared reflective dark pigment present in an amount of from about 0.001% to about 50% by weight.

[0243] In some embodiments, an asphalt-based slurry seal composition and / or an asphaltbased slurry seal base composition is prepared by mixing together one or more of T1O2 particles (including, e.g., any of the embodiments and / or amounts disclosed herein, as in the section entitled “Titanium oxide,” above), infrared reflective dark pigment (including, e.g., any of the embodiments or amounts disclosed herein, as in the section entitled “Reflectance of asphalt-based slurry seal composition”), asphalt emulsion (including, e.g., any of the embodiments and / or amounts disclosed herein, as in the section entitled “Asphalt,” above), water (including, e.g., any of the embodiments and / or amounts disclosed herein, as in the section entitled “Water,” above), polymer emulsion (including, e.g., any of the embodiments and / or amounts disclosed herein, as in the section entitled “Polymer Emulsion,” above), biocide (including, e.g., any of the embodiments and / or amounts disclosed herein, as in the section entitled “Biocide,” above), dispersant (including, e.g., any of the embodiments and / or amounts disclosed herein, as in the section entitled “Dispersants,” above), plasticizer(including, e.g., any of the embodiments and / or amounts disclosed herein, as in the section entitled “Plasticizer,” above), and / or dirt-resistance additive (including, e.g., any of the embodiments and / or amounts disclosed herein, as in the section entitled “Dirt-Resistance Additives,” above). In some embodiments, an asphalt-based slurry seal composition and / or an asphalt-based slurry seal base composition is prepared by further adding a pigment (including, e.g., any of the embodiments and / or amounts disclosed herein, as in the section entitled “Reflectance of asphalt-based slurry seal composition,” above).

[0244] In some embodiments, the compositions are prepared in a single mixing step.

[0245] In some embodiments, the compositions are prepared in a plurality of mixing steps (e.g., phases).

[0246] In some embodiments, the compositions are prepared by obtaining one or more intermediate mixtures. For example, intermediate mixtures can be obtained by mixing together two or more components of the composition in a separate step, prior to combining the intermediate mixture with the remaining components of the composition. In some embodiments, intermediate mixtures comprise any two or more components of the composition disclosed herein (e.g., TiCh particles, an asphalt emulsion, water, polymer emulsion, biocide, dispersant, plasticizer, and / or dirt-resistance additive). For example, an intermediate mixture can be an asphalt binder mixture comprising asphalt emulsion and polymer emulsion. In some embodiments, an intermediate mixture comprises TiCh particles and dispersant (e.g., to homogenize the TiCh particles for dispersal throughout the composition). For instance, in some implementations, the preparation comprises mixing TiCh particles with water and / or a dispersant, emulsifying the TiCh particles to homogenize the TiCh particles, and adding the intermediate mixture to a final batch composition.

[0247] In some embodiments, a plurality of intermediate mixtures is obtained, and the plurality of intermediate mixtures are combined, together with any remaining components of the composition, to form an asphalt-based slurry seal composition and / or an asphalt-based slurry seal base composition. For instance, in some implementations, the preparation comprises (i) obtaining a first intermediate mixture comprising asphalt emulsion and polymer emulsion, and a second intermediate mixture comprising TiCh particles, dispersant, and pigment, and (ii) combining the plurality of intermediate mixtures with the remaining components of the composition (e.g., plasticizer and / or biocide).

[0248] In some embodiments, the components of the asphalt-based slurry seal composition or base composition are added to the product as desired using any of the embodiments, amounts, and / or ranges disclosed herein. The disclosed compositions can be made using any suitable methods or in any order as will be apparent to one skilled in the art. For instance, the order of addition can be modified to any other order logically possible.

[0249] In some embodiments, the asphalt-based slurry seal composition or base composition has a pH of at least 8, at least 9, at least 10, at least 11, at least 12, or at least 13. In some embodiments, the asphalt-based slurry seal composition or base composition has a pH of from about 8 to about 14. In some embodiments, the asphalt-based slurry seal composition or base composition has a pH of about 10.

[0250] In some embodiments, prior to adding the asphalt emulsion, a mixture containing all other components of the asphalt-based slurry seal composition or base composition has a pH of at least 5, at least 6, at least 7, at least 8, at least 9, at least 10, at least 11, or at least 12. In some embodiments, a mixture containing all other components of the asphalt-based slurry seal composition or base composition except the asphalt emulsion has a pH of from about 5 to about 12. In some embodiments, a mixture containing all other components of the asphaltbased slurry seal composition or base composition except the asphalt emulsion has a pH of about 8.

[0251] In some embodiments, the asphalt-based slurry seal composition or base composition comprises an anionic emulsion (e.g., where the asphalt emulsion is anionic, as described above). Advantageously, anionic emulsions can provide longer term stability for storage and transportation but may impact the drying time of the applied slurry seal composition. As described above, the addition of materials that impart enhanced stability allows for a wider variety of asphalt sources that can be used in the composition, resulting in improved product stability for storage and transportation and better control of drying and reactivity. Moreover, in some embodiments, anionic emulsions provide slower drying properties that are amenable to pail storage and / or individual consumer use (e.g., home or “DIY” applications).

[0252] In some embodiments, the asphalt-based slurry seal composition or base composition comprises a cationic emulsion (e.g., where the asphalt emulsion is cationic, as described above). Advantageously, cationic emulsions provide faster drying time, allowing for high-throughput applications such as roadbeds and / or other large surface areas.

[0253] In some embodiments, the asphalt-based slurry seal composition or base composition is stable (e.g., can be stored) for at least 90 days. In some embodiments, the asphalt-based slurry seal composition or base composition is stable for at least 2 years. In some embodiments, the asphalt-based slurry seal composition or base composition is stable for at least 1 day, at least 2, days, at least 3 days, at least 4 days, at least 5 days, at least 6 days, or at least 1 week. In some embodiments, the asphalt-based slurry seal composition or base composition is stable for at least 2 weeks, at least 3 weeks, at least 1 month, at least 2 months, at least 3 months, at least 6 months, at least 1 year, at least 2 years, at least 3 years, at least 4 years, or at least 5 years. In some embodiments, the asphalt-based slurry seal composition or base composition is stable for no more than 10 years, no more than 5 years, no more than 2 years, no more than 1 year, no more than 6 months, or no more than 3 months. In some embodiments, the asphalt-based slurry seal composition or base composition is stable for between 1 day and 1 month, between 1 month and 6 months, between 2 months and 2 years, or between 6 months and 5 years. In some embodiments, the asphalt-based slurry seal composition or base composition is stable for another period of time starting no lower than 1 day and ending no higher than 10 years.

[0254] In some embodiments, the compositions are prepared using a vertical high sheer mixer and / or a colloid mill. In some embodiments, the compositions are prepared mechanically and / or manually. In some embodiments, one or more mixing steps (e.g., phases) are prepared using a vertical high sheer mixer. For instance, in some embodiments, the preparation of the asphalt-based slurry seal composition or base composition includes performing an asphalt emulsion using a vertical high sheer mixer. In some embodiments, one or more mixing steps (e.g., phases) are prepared using a colloid mill. For instance, in some embodiments, the preparation of the asphalt-based slurry seal composition or base composition includes performing an asphalt emulsion using a colloid mill.

[0255] In some embodiments, the compositions are prepared (e.g., mixed) prior to transport to the point of application (e.g., in a factory). In some embodiments, the compositions are stored for a period of time before being transported to the point of application e.g., for a period of time starting no lower than 1 day and ending no higher than 10 years, as described above).

[0256] In some implementations, one or more components are added at a point of application. For example, in some implementations, one or more components of the asphaltbased slurry seal composition or base composition are added to the mixture no more than apredetermined period of time prior to application. In some embodiments, the predetermined period of time is no more than 1 day, no more than 12 hours, no more than 6 hours, no more than 3 hours, no more than 1 hours, or no more than 30 minutes. In some embodiments, the predetermined period of time is at least 5 minutes, at least 10 minutes, at least 20 minutes, at least 30 minutes, at least 1 hour, or at least 6 hours. In some embodiments, the predetermined period of time is from 10 minutes to 30 minutes, from 10 minutes to 1 hour, from 30 minutes to 6 hours, from 30 minutes to 12 hours, or from 6 hours to 1 day. In some embodiments, the predetermined period of time falls within another range starting no lower than 5 minutes and ending no higher than 1 day.

[0257] Any suitable means for mixing and / or adding components of the asphalt-based slurry seal composition or base composition are contemplated, as will be apparent to one skilled in the art. In some embodiments, any suitable unit of measurement can be used for adding components to the composition (e.g., weight, volume). In some embodiments, the composition is scaled to any desired batch size.

[0258] In some embodiments, the asphalt-based slurry seal composition or base composition has a weight (e.g., density) of at least 8.0, at least 8.5, at least 9.0, at least 9.5, at least 10.0, at least 10.5, at least 11.0, at least 11.2, at least 11.4, at least 11.5, at least 12.0, at least 12.5, at least 13.5, at least 14.0, at least 14.5, at least 15.0, at least 16.0, or at least 17.0 pounds per gallon. In some embodiments, the asphalt-based slurry seal composition or base composition has a weight of no more than 20.0, no more than 18.0, no more than 15.0, no more than 14.0, no more than 13.0, no more than 12.0, or no more than 11.0 pounds per gallon. In some embodiments, the asphalt-based slurry seal composition or base composition has a weight of from about 9.0 to about 12.0, from about 10.0 to about 14.0, from about 11.1 to about 11.8, from about 10.5 to about 13.5, or from about 8.0 to about 15.0 pounds per gallon. In some embodiments, the asphalt-based slurry seal composition or base composition has a weight falling within another range starting no lower than 8.0 pounds per gallon and ending no higher than 20.0 pounds per gallon. In some embodiments, the disclosed weights and / or weight ranges of the asphalt-based slurry seal composition or base composition reflect the weight of the composition just prior to application (e.g., ready -to-use). In some embodiments, the disclosed weights and / or weight ranges of the asphalt-based slurry seal composition or base composition reflect the weight of the composition prior to dilution (e.g., during manufacturing). In some embodiments, the weight is determined by the components included in the asphalt-based slurry seal composition or base composition (e.g., higher TiChloadings result in proportionally higher densities). Advantageously, compositions having higher weights can exhibit enhanced characteristics, including improved quality of application and slurry seal performance.

[0259] In some embodiments, as described below, the preparation comprises diluting the asphalt-based slurry seal composition or base composition after mixing the components together. In some embodiments, the preparation comprises diluting the asphalt-based slurry seal composition or base composition prior to application (e.g., to treat an asphalt surface).

[0260] VIII. Methods of treating asphalt surface with asphalt-based compositions

[0261] In yet another aspect, the present disclosure provides methods, kits, and / or instructions thereof, for treating an asphalt surface, comprising applying an amount of an asphalt-based slurry seal composition (e.g., comprising any of the asphalt-based slurry seal base compositions disclosed herein) to an upper surface of the asphalt surface. In some embodiments, the asphalt-based slurry seal composition is diluted with 1% to 50% additional water at the time of application. In some embodiments, the asphalt-based slurry seal composition is diluted with 10% to 30% additional water at the time of application. In some embodiments, the asphalt-based slurry seal composition is diluted with 15% to 25% additional water at the time of application. In some embodiments, the asphalt-based slurry seal composition is diluted with 20% additional water at the time of application.

[0262] In some embodiments, the method comprises treating any asphalt surface, including but not limited to roads, sidewalks, playgrounds, parks, parking lots, driveways, recreational facilities, outdoor facilities, residential areas, schools, bike paths, shade structures, roofing, and / or LEED-certified building projects. In some embodiments, the method comprises treating an asphalt surface for any purpose, including but not limited to recreational uses (e.g., tennis courts, basketball courts, running tracks, walking trails, biking paths, etc.), road markings (e.g., delineation of bike lanes, shoulders, lane lines, intersections, etc.), signage (e.g., handicapped parking, loading zones, pedestrian crossings, fire lanes, etc.), and / or aesthetic applications (e.g., driveways, courtyards, playgrounds, etc.). In some embodiments, the method comprises applying an amount of an asphalt-based slurry seal composition (e.g., any of the compositions disclosed herein) to an asphalt surface that has undergone wear (e.g., cracking, discoloration, elongation, fracture, and / or general failure). The use of the asphalt-based slurry seal base compositions disclosed herein is not limited toany specific purpose in any given context but can be used for any function in any context known in the art in which paving is used.

[0263] Additional embodiments for asphalt-based coating compositions, methods of preparing and applying the same, and accompanying characteristics with respect to reflectivity values and reduction of pollutants are contemplated, as further described in International Publication No. WO 2019126288 Al, published 27 June 2019, U.S. Patent No. 10,435,561, published 8 October 2019, U.S. Patent Application Publication US 20220195195 Al, published 23 June 2022, International Publication No. WO 2022225662 Al, published 27 October 2022, U.S. Patent Application Publication US 20220340758 Al, published 27 October 2022, and PCT Patent Application No. PCT / US23 / 073723, filed 8 September 2023, each of which is hereby incorporated herein by reference in its entirety.

[0264] EXAMPLES

[0265] The following Examples illustrate the generation, performance, and / or characterization of representative compositions provided in the present disclosure. These examples are not intended, nor are they to be construed, as limiting the scope of the present disclosure. It will be clear that the compositions and methods disclosed herein may be practiced otherwise than as particularly described herein. Numerous modifications and variations of the compositions and methods disclosed here are possible in view of the teachings herein and, therefore, are within the scope of the present disclosure.

[0266] In the examples below, unless otherwise indicated, all temperatures are set forth in degrees Celsius and all parts and percentages are by weight. Reagents may be purchased from commercial suppliers and may be used without further purification unless otherwise indicated. Reagents may also be prepared following standard literature procedures known to those skilled in the art. Solvents may be purchased from commercial suppliers and may be used as received unless otherwise indicated. All solvents may be purified using standard methods known to those skilled in the art, unless otherwise indicated.

[0267] Starting materials used were either available from commercial sources or prepared according to literature procedures and had experimental data in accordance with those reported.

[0268] EXAMPLE 1 - Design and evaluation of asphalt-based slurry seal composition using large aggregate in accordance with the present disclosure.

[0269] An asphalt-based slurry seal composition was prepared including asphalt emulsion PMCQS-lh (Sustainable Emulsions, Colton CA) and aggregate, the aggregate including reclaimed inorganic binder stabilized aggregate (RAI) and reclaimed asphalt pavement (RAP), Type II. The slurry seal composition further included a mineral filler comprising cement, and an optional set control additive comprising an aluminum sulfate solution.

[0270] The asphalt-based slurry seal composition was tested for gradation, sand equivalency, methylene blue value, and effects of water on unit weight of the slurry seal composition (bulking effect, shown in Table 1).

[0271] Table 1. Quantitative effects of moisture on aggregate weight.

[0272] Gradation testing was performed to determine the particle size distribution of fine and coarse aggregates by sieving using the ASTM Cl 36 Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates (ASTM International, available on the Internet at astm.org) and to determine the amount of material finer than a 75-pm (No. 200) sieve in aggregate by washing using the ASTM Cl 17 Standard Test Method for Materials Finer than 75-pm (No. 200) Sieve in Mineral Aggregates by Washing (ASTM International, available on the Internet at astm.org). The bulk of the aggregate had a particle size mesh of no more than mesh number 30, with 35.0% passing by ASTM C136 testing and 50.5% passing by ASTM Cl 17 testing (mesh number 16: 56.0% passing by ASTM C136, 67.7% passing by ASTM Cl 17; mesh number 8: 79.2% passing by ASTM C136, 86.6% passing by ASTM C117).

[0273] Sand equivalence testing was performed to measure the proportions of fine aggregates (fines) within the aggregate, including the proportions of desirable coarse or sand-size particles relative to undesirable clay-size particles or dust. The aggregate fell within acceptable parameters using the ASTM D2419 Standard Test Method for Sand Equivalent Value of Soils and Fine Aggregate (result: 73, minimum specification: 60). Low levels of clays were also measured in the aggregate using the AASHTO T 330 Standard Method of Test for The Qualitative Detection of Harmful Clays of the Smectite Group in Aggregates Using Methylene Blue (result: 2).

[0274] Field simulation tests were performed on the slurry seal composition to determine whether the large aggregate mixture exhibited suitable characteristics, e.g., for road use. All test results fell within acceptable parameters, as illustrated in Table 2. Field simulation tests included trial mix time (ISSA TB 113 - Test Method for Determining Mix Time for Slurry Surfacing Systems), wet cohesion (ISSA TB 139 - Test Method to Determine Set and Cure Development of Slurry Surfacing Systems by Cohesion Tester), wet track abrasion (ISSA TB 100 - Laboratory Test Method for Wet Track Abrasion of Slurry Surfacing Systems), loaded wheel track (ISSA TB 109 - Test Method for Measurement of Excess Asphalt In Bituminous Mixtures by Use of a Loaded Wheel Tester and Sand Adhesion), consistency (ISSA TB 106 - Test Method for Measurement of Slurry Seal Consistency), boiling water stripping (ISSA TB 114 - Test Method for Wet Stripping of Cured Slurry Surfacing Mixtures), and system compatibility (ISSA TB 115 - Determination of Slurry Systems Compatibility) testing (International Slurry Surfacing Association; available on the Internet at slurry.org / page / technicalbulletins).

[0275] Table 2. Field simulation tests.

[0276] The effects of mineral filler on mix time and curing was also performed. It has been determined that increasing mineral filler decreases mix time and accelerates curing.Aluminum sulfate solution was used as an aid to reduce the total moisture content of the mixture thereby helping cohesion development at room temperature. The materials mixed well and were compatible. Specimens made for performance testing performed as expected and passed all specifications. A solution of 38% aluminum sulfate was used to control the mix and cure properties of the mixture and was required to aid in providing good cohesion properties in mild temperatures.

[0277] An emulsion content of the PMCQS-lh asphalt emulsion of 12% by weight of dry aggregate and a cement content of 1.0% by weight of dry aggregate was recommended as optimal for the slurry seal composition. The final concentrations of components used in the slurry seal composition, as well as recommended minimum and maximum ranges, are provided in Table 3.

[0278] Table 3. Mix formula.

[0279] EXAMPLE 2 - Design and evaluation of asphalt-based slurry seal composition using asphalt-based slurry seal base composition in accordance with the present disclosure.

[0280] An asphalt-based slurry seal base composition was obtained comprising an asphalt emulsion, water, a polymer emulsion, and a solar reflective additive including a plurality of titanium oxide particles, in accordance with the present disclosure.

[0281] An asphalt-based slurry seal composition was generated by mixing 100 pounds of aggregate with an amount of the asphalt-based slurry seal base composition and an amount of added water according to varying proportions relative to the final weight of the total slurry seal composition. FIG. 1 illustrates samples of the slurry seal composition at varying proportions, with increasing amounts of the asphalt-based slurry seal base composition shownalong the x-axis (left to right) and increasing amounts of added water shown along the y-axis (top to bottom).

[0282] A mixture of 60-70% by weight of the asphalt-based slurry seal base composition with 10-20% by weight of added water, relative to the weight of the total slurry seal composition, was found to facilitate good suspension of aggregate in the composition and smoother application of the slurry seal composition to a surface compared to the other tested mixtures. These ratios are indicated in FIG. 1 by the dashed circle.

[0283] It is understood that the examples and embodiments described herein are for illustrative purposes only and that various modifications or changes in light thereof will be suggested to persons skilled in the art and are to be included within the spirit and purview of this application and scope of the appended claims. All publications, patents, and patent applications cited herein are hereby incorporated by reference in their entirety for all purposes.

Claims

WHAT IS CLAIMED IS:

1. An asphalt-based slurry seal base composition comprising an asphalt emulsion, water, a polymer emulsion, and a solar reflective additive, wherein the asphalt-based slurry seal base composition is free of an aggregate.

2. The composition of claim 1, wherein the solar reflective additive comprises a plurality of titanium oxide ( l i O2 ) particles present in an amount of from about 5% to about 60% by weight.

3. The composition of claim 1 or claim 2, wherein the TiO2 particles comprise an anatase powder form of TiO2.

4. The composition of claim 1 or claim 2, wherein the TiO2 particles comprise a brookite powder form of TiO2.

5. The composition of claim 1 or claim 2, wherein the TiO2 particles comprise a rutile powder form of TiO2.

6. The composition of any one of claims 1-5, wherein each respective TiO2 particle in the plurality of TiO2 particles comprises a modifier.

7. The composition of claim 6, wherein the modifier is an aluminum hydroxide coating.

8. The composition of any one of claims 1-7, wherein each respective TiO2 particle in the plurality of TiO2 particles has a size of no more than 20 microns.

9. The composition of any one of claims 1-8, wherein each respective TiO2 particle in the plurality of TiO2 particles has a size of no more than 10 microns.

10. The composition of any one of claims 1-9, wherein each respective TiO2 particle in the plurality of TiO2 particles has a size of no more than 5 microns.

11. The composition of any one of claims 1-10, wherein the solar reflective additive comprises an infrared reflective dark pigment present in an amount of from about 0.001% to about 50% by weight.

12. The composition of any one of claims 1-11, wherein the asphalt emulsion is cationic.

13. The composition of any one of claims 1-11, wherein the asphalt emulsion is anionic.

14. The composition of any one of claims 1-13, wherein the asphalt emulsion is present in an amount of from about 5% to about 40% by weight.

15. The composition of any one of claims 1-14, wherein the water is present in an amount of from about 15% to about 45% by weight.

16. The composition of any one of claims 1-15, wherein the polymer emulsion is present in an amount of from about 1% to about 35% by weight.

17. The composition of any one of claims 1-16, further comprising a biocide present in an amount of from about 0.01% to about 5% by weight.

18. The composition of any one of claims 1-17, further comprising a colorant present in an amount of from about 0.001% to about 50% by weight.

19. The composition of any one of claims 1-18, further comprising a dispersant present in an amount of from about 0.01% to about 10% by weight.

20. The composition of any one of claims 1-19, further comprising a plasticizer present in an amount of from about 0.1% to about 20% by weight.

21. The composition of any one of claims 1-20, wherein the asphalt-based slurry seal base composition has a SR (Solar Reflectivity) # of at least about 0.10.

22. The composition of any one of claims 1-21, wherein the asphalt-based slurry seal base composition has an SRI (Solar Reflective Index) # of at least about 10.

23. The composition of any one of claims 1-22, further comprising an asphalt reinforcement component.

24. The composition of claim 23, wherein the asphalt reinforcement component is selected from the group consisting of mineral asphaltenes, clarified asphalt, and bio-based asphalt-like binders.

25. The composition of any one of claims 1-24, wherein the asphalt-based slurry seal base composition reduces pollutants.

26. The composition of claim 25, wherein the asphalt-based slurry seal base composition reduces atmospheric pollutants including an amount of nitrogen oxides (NOx) and volatile organic compounds (VOC) via photocatalytic reactions.

27. The composition of claim 25 or claim 26, wherein the asphalt-based slurry seal base composition is highly solar reflective and reduces asphalt surface temperatures and pollutants.

28. The composition of any one of claims 25-27, wherein the asphalt-based slurry seal base composition has a SR (Solar Reflectivity) # of at least about 0.33 and reduces asphalt surface temperatures and pollutants.

29. A kit, comprising: an asphalt-based slurry seal base composition comprising an asphalt emulsion, water, a polymer emulsion, and a solar reflective additive, instructions for mixing the asphalt-based slurry seal base composition with an aggregate, thereby obtaining an asphalt-based slurry seal composition, and instructions for applying the asphalt-based slurry seal composition to an asphalt surface.

30. The kit of claim 29, wherein the asphalt-based slurry seal base composition is free of an aggregate31. The kit of claim 29 or claim 30, wherein the applying the asphalt-based slurry seal composition to an asphalt surface is performed at point of use.

32. The kit of any one of claims 29-31, wherein the mixing the asphalt-based slurry seal base composition with an aggregate is performed at point of use.

33. The kit of any one of claims 29-32, further comprising aggregate.

34. The kit of claim 33, wherein the aggregate has a particle size mesh of from about mesh number 300 to about 1 inch.

35. The kit of claim 33 or claim 34, wherein the aggregate has a particle size mesh of no higher than mesh number 20.

36. The kit of any one of claims 33-35, wherein the aggregate has a particle size mesh of from about mesh number 20 to about 1 inch.

37. The kit of any one of claims 33-36, wherein the aggregate has a particle size mesh of from about 1 / 4 inch to about 1 inch.

38. The kit of any one of claims 33-37, wherein the aggregate has a particle size mesh selected from the group consisting of 1 / 4 inch, 1 / 2 inch, and 3 / 4 inch.

39. The kit of any one of claims 33-38, wherein the aggregate is selected from the group consisting of slate, baghouse fines (rock dust), fly ash, quartz sand, silica sand, calcium carbonite, clay, paper fiber, fiberglass fiber, limestone aggregate, copper slag, iron slag, steel slag, aluminum oxide, recycled roofing shingles, ground leather, ground rubber, nylon flock, plastic flock, glass beads, granite aggregate, ground tire rubber, ground up tennis balls, recycled cardboard, recycled glass, wood chips, wood fiber, walnut shells, apricot shells, pecan shells, corn cobs, rice hulls, scrabbled stone, pumice, basaltic aggregate, perlite, vermiculite, marble white, melamine, urea, calcinated bauxite, and any combination thereof.

40. The kit of claim 33 or claim 34, wherein the aggregate has a particle size mesh of from about mesh number 300 to about mesh number 20.

41. The kit of any one of claims 33-40, wherein the aggregate comprises low-density aggregate.

42. The kit of any one of claims 33-41, wherein the aggregate has a density of no more than 1 g / cm3.

43. The kit of any one of claims 33-41, wherein the aggregate has a density of from about 0.1 g / cm3to about 3 g / cm3.

44. The kit of any one of claims 33-43, wherein the aggregate comprises expanded slate fines.

45. The kit of any one of claims 29-44, further comprising one or more of clay, sand, an extender, and fiber.

46. The kit of claim 45, wherein the clay is selected from the group consisting of bentonite clay, ball clay, fire clay, sepiolite clay, illite, montmorillonite, hawthorn clay, American colloid clay, hickory clay, Lincoln clay, and a mixture thereof47. The kit of claim 45 or claim 46, wherein the sand has a particle size mesh from about 16 to about 300.

48. The kit of any one of claims 45-47, wherein the extender is selected from the group consisting of marble white, granulated calcium carbonate, kaolin, kaolinite, imerys talcs, Grace SYLOWHITE™, Burgess Pigment Company kaolins, and any mixture thereof.

49. The kit of any one of claims 45-48, wherein the fiber is recycled paper or fabric.

50. The kit of any one of claims 29-49, wherein the solar reflective additive comprises a plurality of titanium oxide (Ti O2) particles present in an amount of from about 5% to about 60% by weight.

51. The kit of any one of claims 29-49, wherein the solar reflective additive comprises an infrared reflective dark pigment present in an amount of from about 0.001% to about 50% by weight.

52. The kit of any one of claims 29-51, wherein the asphalt emulsion is cationic.

53. The kit of any one of claims 29-52, wherein the asphalt emulsion is present in an amount of from about 5% to about 40% by weight, the water is present in an amount of from about 15% to about 45% by weight, and the polymer emulsion is present in an amount of from about 1% to about 35% by weight.

54. The kit of any one of claims 29-53, wherein the asphalt-based slurry seal base composition further comprises a biocide present in an amount of from about 0.01% to about 5% by weight.

55. The kit of any one of claims 29-54, wherein the asphalt-based slurry seal base composition further comprises a colorant present in an amount of from about 0.001% to about 50% by weight.

56. The kit of any one of claims 29-55, wherein the asphalt-based slurry seal base composition further comprises a dispersant present in an amount of from about 0.01% to about 10% by weight.

57. The kit of any one of claims 29-56, wherein the asphalt-based slurry seal base composition further comprises a plasticizer present in an amount of from about 0.1% to about 20% by weight.

58. The kit of any one of claims 29-57, wherein the asphalt-based slurry seal base composition has a SR (Solar Reflectivity) # of at least about 0.10.

59. The kit of any one of claims 29-58, wherein the asphalt-based slurry seal base composition has an SRI (Solar Reflective Index) # of at least about 10.

60. The composition of any one of claims 29-59, wherein the asphalt-based slurry seal base composition reduces pollutants.

61. An asphalt-based slurry seal base composition comprising an asphalt emulsion, water, and an amount of a solar reflective additive, wherein the asphalt-based slurry seal base composition is free of an aggregate.

62. The composition of claim 61, further comprising a polymer emulsion.

63. The composition of claim 61 or claim 62, wherein the solar reflective additive is selected from the group consisting of titanium oxide (TiCh) particles and infrared reflective dark pigment.

64. The composition of any one of claims 61-63, wherein the solar reflective additive comprises a plurality of titanium oxide (TiCh) particles present in an amount of from about 5% to about 60% by weight.

65. The composition of any one of claims 61-63, wherein the solar reflective additive comprises an infrared reflective dark pigment present in an amount of from about 0.001% to about 50% by weight.

66. The composition of any one of claims 61-65, wherein the asphalt emulsion is cationic.

67. The composition of claim 62, wherein the asphalt emulsion is present in an amount of from about 5% to about 40% by weight, the water is present in an amount of from about 15% to about 45% by weight, and the polymer emulsion is present in an amount of from about 1% to about 35% by weight.

68. The composition of any one of claims 61-67, further comprising a biocide present in an amount of from about 0.01% to about 5% by weight.

69. The composition of any one of claims 61-68, further comprising a colorant present in an amount of from about 0.001% to about 50% by weight.

70. The composition of any one of claims 61-69, further comprising a dispersant present in an amount of from about 0.01% to about 10% by weight.

71. The composition of any one of claims 61-70, further comprising a plasticizer present in an amount of from about 0.1% to about 20% by weight.

72. The composition of any one of claims 61-71, wherein the asphalt-based slurry seal base composition has a SR (Solar Reflectivity) # of at least about 0.10.

73. The composition of any one of claims 61-72, wherein the asphalt-based slurry seal base composition has an SRI (Solar Reflective Index) # of at least about 10.

74. The composition of any one of claims 61-73, wherein the asphalt-based slurry seal base composition reduces pollutants.

75. An asphalt-based slurry seal base composition comprising an asphalt emulsion, water, and a plurality of titanium oxide (TiCh) particles present in an amount of about 5% to about 60% by weight.

76. The composition of claim 75, wherein the asphalt-based slurry seal base composition is free of an aggregate.

77. The composition of claim 75 or 76, further comprising a polymer emulsion.

78. The composition of any one of claims 75-77, wherein the asphalt emulsion is cationic.

79. The composition of claim 77, wherein the asphalt emulsion is present in an amount of from about 5% to about 40% by weight, the water is present in an amount of from about 15% to about 45% by weight, and the polymer emulsion is present in an amount of from about 1% to about 35% by weight.

80. The composition of any one of claims 75-79, further comprising a biocide present in an amount of from about 0.01% to about 5% by weight.

81. The composition of any one of claims 75-80, further comprising a colorant present in an amount of from about 0.001% to about 50% by weight.

82. The composition of any one of claims 75-81, further comprising a dispersant present in an amount of from about 0.01% to about 10% by weight.

83. The composition of any one of claims 75-82, further comprising a plasticizer present in an amount of from about 0.1% to about 20% by weight.

84. The composition of any one of claims 75-83, wherein the asphalt-based slurry seal base composition has a SR (Solar Reflectivity) # of at least about 0.10.

85. The composition of any one of claims 75-84, wherein the asphalt-based slurry seal base composition has an SRI (Solar Reflective Index) # of at least about 10.

86. The composition of any one of claims 75-85, wherein the asphalt-based slurry seal base composition reduces pollutants.

87. An asphalt-based slurry seal base composition comprising an asphalt emulsion, water, and an infrared reflective dark pigment present in an amount of about 5% to about 60% by weight.

88. The composition of claim 87, wherein the asphalt-based slurry seal base composition is free of an aggregate.

89. The composition of claim 87 or 88, further comprising a polymer emulsion.

90. The composition of any one of claims 87-89, wherein the asphalt emulsion is cationic.

91. The composition of claim 89, wherein the asphalt emulsion is present in an amount of from about 5% to about 40% by weight, the water is present in an amount of from about 15% to about 45% by weight, and the polymer emulsion is present in an amount of from about 1% to about 35% by weight.

92. The composition of any one of claims 87-91, further comprising a biocide present in an amount of from about 0.01% to about 5% by weight.

93. The composition of any one of claims 87-92, further comprising a colorant present in an amount of from about 0.001% to about 50% by weight.

94. The composition of any one of claims 87-93, further comprising a dispersant present in an amount of from about 0.01% to about 10% by weight.

95. The composition of any one of claims 87-94, further comprising a plasticizer present in an amount of from about 0.1% to about 20% by weight.

96. The composition of any one of claims 87-95, wherein the asphalt-based slurry seal base composition has a SR (Solar Reflectivity) # of at least about 0.10.

97. The composition of any one of claims 87-96, wherein the asphalt-based slurry seal base composition has an SRI (Solar Reflective Index) # of at least about 10.

98. The composition of any one of claims 87-97, wherein the asphalt-based slurry seal base composition reduces pollutants.

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