106results about "Bituminous material adhesives" patented technology

The invention relates to the technical field of waterproof coiled materials, in particular to an anti-ultraviolet SBS waterproof coiled material and a preparation method thereof.The waterproof coiled material comprises a base layer, an anti-ultraviolet SBS asphalt layer and a thin film layer, the anti-ultraviolet SBS asphalt layer comprises asphalt, an SBS elastomer, asphalt softening oil, an anti-aging waterproof multifunctional agent, composite filler, an initiator and the like, and the thin film layer is prepared from the following components; the anti-aging waterproof multifunctional agent prepared by the invention takes macromolecular polysiloxane as a main chain and simultaneously contains a double hindered amine structure and a benzoxazole structure, and the benzoxazole structure not only can cooperate with a polysiloxane structure to improve the thermal aging resistance of a material, but also can endow a coiled material with a rigid structure; the double hindered amine structure has better ultraviolet aging resistance and does not influence the improvement of silicon-oxygen bonds on the waterproof performance of the coiled material, and the functional agent can make the asphalt coiled material become a coiled material resistant to thermal aging, ultraviolet aging and chemical substance erosion.

The application discloses an epoxy asphalt binder and a preparation method thereof, and belongs to the technical field of asphalt preparation, in particular relates to the binder which is composed of modified asphalt, epoxy resin material, compatilizer and anti-aging agent, and the mass ratio of the modified asphalt, the epoxy resin material, the compatilizer and the anti-aging agent is 100:15-60:5-10:0.1-0.5.The epoxy asphalt binder prepared by the application has excellent bonding performance and flexibility, in particular, the bonding performance at high temperature is significantly better than that of modified emulsified asphalt or polymer modified asphalt, and the flexibility is better than that of epoxy resin binder.

The invention belongs to the technical field of steel bridge pavement, and particularly discloses a high-viscosity asphalt double-layer SMA pavement layer structure and a construction technology thereof. The high-viscosity asphalt double-layer SMA pavement layer structure comprises an upper pavement layer, a waterproof bonding layer and a lower pavement layer, the upper pavement layer is laid on the lower pavement layer, the upper pavement layer comprises fine aggregate, limestone powder, modified asphalt, basalt fibers and a Wenn glue mixture, the thickness of the upper pavement layer is 35-40 mm, and the thickness of the waterproof bonding layer is 10-20 mm. The waterproof bonding layer comprises modified asphalt, epoxy resin, a silane coupling agent, a curing agent, a curing accelerator, butadiene styrene rubber, a silane coupling agent and talcum powder, the thickness of the waterproof bonding layer is 0.5-1 mm, and the lower pavement layer comprises coarse aggregate, modified asphalt, acrylonitrile-butadiene-styrene copolymer, porous ceramic particles, rubber particles, calcium stearate and waterborne polyurethane. And the thickness of the lower paving layer is 10-15mm. Various raw materials are mixed, so that the strength and durability of the pavement layer structure are improved, and the service life of the pavement is prolonged.

Aiming at the problems that the molecular weight of the existing SBS modified asphalt is broken and the rubber powder of the rubber asphalt is unstable to degrade, the composite modified asphalt binder with a dense molecular structure is prepared by a three-step method of constructing a'molecular grading template ', optimizing a rubber powder analysis process and filling vacancy molecules. The process comprises the following steps: determining an asphalt molecular weight distribution template by taking the optimal rheological property as a target, and regulating and controlling the rubber powder analysis temperature (180-220 DEG C), the time (3-6 hours) and the stirring speed (500-1500 r / min) to ensure that the molecular weight distribution overlapping degree of a rubber powder analysis system and the template is greater than or equal to 85%; and finally, filling corresponding prototype compounds (such as styrene-butadiene block copolymers, antioxidants and the like) according to molecular vacancy types of an analysis system and the template to form a dense molecular structure. The prepared binder is continuous and stable in molecular weight distribution, the high-temperature anti-rutting factor is improved by 40% or above, the anti-aging performance is improved by 30%, the binder is suitable for a highway surface layer with the service life of 30 years, and the service life of a pavement can be remarkably prolonged.

The application provides a petroleum-based binder for prebaked anodes and a preparation method thereof, and relates to the technical field of prebaked anode production. The preparation of the petroleum-based binder comprises the following steps: mixing residual oil and an activating agent, then performing a first polymerization reaction by heating, cooling after the reaction, and obtaining a modified binder; mixing the obtained modified binder with a vacuum distillation fraction of catalytic slurry oil, then melting by heating, sealing, heating, performing a second polymerization reaction, cooling after the reaction, and obtaining the petroleum-based binder for prebaked anodes. The two-stage thermal polymerization method is adopted, the first stage is a medium-low temperature thermal polymerization method, the small molecules in the residual oil are modified by the medium-low temperature thermal polymerization, and the carbon residue rate of the pitch is improved; the second stage of thermal polymerization mainly makes the unreacted groups of the modified binder in the first stage continue to perform a thermal polymerization reaction with the treated catalytic slurry oil at high temperature, and the modified binder coal pitch for prebaked anodes with high carbon residue and low viscosity is obtained.

The invention relates to a modified asphalt sizing material, which is prepared from the following components in percentage by weight: 35.5 to 38.5 percent of 70 # asphalt, 6.5 to 9.5 percent of base oil, 4.5 to 5.5 percent of aromatic oil, 3.5 to 4.5 percent of SBS (Styrene Butadiene Styrene), 5.5 to 6.5 percent of SIS (Styrene Isoprene Styrene), 5.5 to 6.5 percent of SBR (Styrene Butadiene Rubber) powder, 1.9 to 2.1 percent of blocked isocyanate, 0.06 to 0.08 percent of activating agent, 4.5 to 5.5 percent of porous silicon dioxide and 24 to 30 percent of powder. The modified asphalt sizing material can trigger the activating agent to catalyze the deblocking of the blocked isocyanate at the processing temperature of 180 + / -2 DEG C to release-NCO groups, the-NCO groups can react with trace moisture in an asphalt system to generate CO2 gas, in the rubber layer forming process, CO2 is wrapped by the asphalt in a viscoelastic state to form a uniform closed-cell foam structure, and in the forming process of a rubber layer, the modified asphalt sizing material can be used for forming an asphalt layer. According to the structure, liquid water permeation is blocked by utilizing the characteristic that the surface tension of liquid water is greater than that of a bubble wall, and an initial channel is constructed for vapor diffusion; furthermore, closed-cell foam is bridged by utilizing nano-pores of porous silicon dioxide, a'nano-pore adsorption-micropore diffusion 'three-dimensional vapor-permeable network is constructed, diffusion and discharge of water vapor are accelerated, liquid water is further blocked, and dynamic balance of waterproofness and breathability is realized.

The invention discloses a water-based polymer cold-mixing crack pouring adhesive for road maintenance, which comprises a component A and a component B. The component A comprises unsaturated water-based epoxy resin, unsaturated rubber modified emulsified asphalt, a filler, an oxidant and an antioxidant, and the component B comprises a reducing agent, a water-based epoxy hardener, an accelerant and unsaturated rubber modified emulsified asphalt. The unsaturated water-borne epoxy resin and the unsaturated rubber modified emulsified asphalt can be cured at room temperature under the action of the oxidizing agent and the reducing agent, and the unsaturated water-borne epoxy resin and the water-borne epoxy curing agent can also be cured at room temperature, so that after the component A and the component B are mixed, a system can be subjected to dual-curing reaction, and the curing effect is good. And forming an interpenetrating network structure. Compared with the traditional crack pouring adhesive, the crack pouring adhesive does not need heating equipment, is low in consumption and can reduce the material cost; due to the excellent adhesion of an epoxy system, the crack pouring adhesive is firmly adhered to the wall surface of a crack, is not easy to debond and crack, and is durable.

The invention relates to a composite waterproof high-adaptability asphalt-based waterproof coiled material and a preparation method, the coiled material is composed of a self-adhesive glue material and a structural film / base, the self-adhesive glue material is a modified asphalt glue material, and the self-adhesive glue material is composed of 100 parts of national standard asphalt, 10-40 parts of composite modified rubber, 5-15 parts of naphthenic oil and 5-10 parts of tackifying resin. 30 to 45 parts of talcum powder, 0.5 to 1.5 parts of an antioxidant and 0.5 to 1.5 parts of a heat stabilizer. The composite modified rubber is prepared from the following components in parts by weight: 20-25 parts of styrene butadiene rubber, 8-20 parts of SBS rubber, 20-40 parts of naphthenic oil, 5-10 parts of a liquid tackifier, 0.5-1.2 parts of a separant and 5-10 parts of filler. The asphalt-based waterproof coiled material is formed by compounding the self-adhesive material, a macromolecular structure film and a polyester matrix, the waterproof coiled material can achieve a good composite bonding effect with a macromolecular coiled material, and it can be guaranteed that the two materials are well combined when used in a composite mode.

The invention belongs to the field of high polymer materials and road engineering materials, and provides a single-component road adhesive based on a polyurea asphalt technology and a preparation method of the single-component road adhesive. The adhesive is prepared by compounding an isocyanate-terminated prepolymer and macromolecular asphaltic acid, wherein the prepolymer is prepared by reacting diisocyanate with polycarbonate diol, and carrying out amine chain extension and silane end group modification; the macromolecular asphaltic acid is prepared by reacting maleic anhydride of asphalt with polyoxypropylene diamine and carrying out silane anchoring. The control parameters of the system are as follows: the equivalence ratio is 1.5-8.0, the isocyanate content is 4.0-10.0 wt%, and the viscosity is 10-80 Pa.s. The high-solid-content low-viscosity processing is realized, the bonding strength to a wet base material is 0.80-1.50 MPa, the adhesive has cracking resistance, flame retardance, heat resistance and yellowing resistance, and the problem that constructability, interface anchoring and durability of a traditional adhesive for roads are difficult to consider is solved. The method is suitable for the fields of road paving, crack sealing, water resistance, corrosion resistance and the like.

The present application relates to waterproofing membrane technical field, propose a kind of three base double-channel prefabricated bite lap waterproofing membrane with touch fastener, from bottom to top, in turn include anti-adhesive layer, first permeation reaction adhesive layer, first polymer film base layer, second permeation reaction adhesive layer, second polymer film base layer, third permeation reaction adhesive layer, third polymer film base layer, fourth permeation reaction adhesive layer, rough surface silk layer and hook face layer;The adhesive of first permeation reaction adhesive layer, second permeation reaction adhesive layer, third permeation reaction adhesive layer and fourth permeation reaction adhesive layer respectively independently includes following weight parts component raw materials: asphalt, softener, SBS, SIS, tackifier, rubber powder, filler, filler is composed of heavy calcium carbonate, magnesium stearate modified active calcium carbonate and hollow glass microsphere.By the above technical solution, the problem of poor fixing, low peel strength and heavy quality of waterproofing membrane in related art is solved.

The application belongs to the technical field of polymer materials, and discloses a high-elasticity and anti-cracking crack filling glue and a preparation method thereof. The high-elasticity and anti-cracking crack filling glue comprises the following raw materials: asphalt, thermoplastic elastomer, metallocene polyolefin elastomer, plasticizer, lead peroxide, silane coupling agent and stabilizer. The preparation method is as follows: the asphalt is heated to 180-200 DEG C, and then the thermoplastic elastomer, metallocene polyolefin elastomer, plasticizer, stabilizer, lead peroxide and silane coupling agent are added and uniformly mixed and dispersed by stirring; after the reaction is continuously carried out under the condition of heat preservation and stirring, the crack filling glue is obtained by cooling to room temperature. The crack filling glue of the application contains metallocene polyolefin elastomer, plasticizer and lead peroxide, and the synergistic effect among the three is utilized, so that the obtained crack filling glue has excellent aging resistance, low-temperature performance, adhesion and permeability.

The application discloses HUPC water-based epoxy floor paint and a preparation method thereof, and belongs to the technical field of floor paint preparation. The HUPC water-based epoxy floor paint is obtained by sequentially forming UHPC super-performance concrete components, adhesive layer material components and water-based epoxy floor paint components from bottom to top in a mass ratio of 150-250:0.3-1:3-10, and has a microporous structure, allows water vapor to permeate but liquid medium to not pass through, and releases the pressure of water vapor in the UHPC super-performance concrete layer, thereby avoiding problems such as film bubbling and peeling, has the advantages of high strength, good adhesion and permeation resistance, solves the defects of current floor paint, such as easy sanding and pulverization, insufficient strength, delamination caused by false clear light and poor flatness, and has a good application prospect.

The present application relates to the technical field of road engineering materials, and particularly relates to a rubber asphalt sealant for repairing cracks in asphalt concrete pavement and a preparation method thereof, which comprises, by weight fraction, 100 parts of road petroleum asphalt, 25-45 parts of a composite rubber system, 8-18 parts of double-modified nano-silicon dioxide, 25-42 parts of softening oil, 2-5 parts of an interface compatibilizer, 4-7 parts of a vulcanization system, 1.5-4 parts of a rubber activator, 0.8-2.5 parts of an antioxidant, and 4-9 parts of a tackifier. The present application solves the core technical defects of existing pavement sealants by optimizing the performance of the sealant from the two dimensions of material composition and preparation process through the synergistic effect of the composite rubber system, double-modified nano-filler and multiple compounded additives, and in combination with a gradient preparation process.

The invention provides a polymer modified asphalt binder as well as a preparation method and application thereof, and belongs to the technical field of road engineering materials. The polymer modified asphalt adhesive comprises the following raw material components in parts by mass: 40-60 parts of matrix asphalt, 4-9 parts of a polymer modifier, 10-20 parts of a polyurethane prepolymer, 0.5-2 parts of a reactive chain extender, 3-6 parts of a compatilizer and 0.1-1 part of a stabilizer. The preparation method comprises the following steps: heating matrix asphalt, adding a polymer modifier, and carrying out shearing dispersion to obtain a colloidal dispersion; cooling the colloidal dispersion, mixing the cooled colloidal dispersion with a polyurethane prepolymer, a chain extender and a compatilizer, and carrying out a grafting reaction to obtain a mixture; and mixing the mixture with a stabilizer to obtain the polymer modified asphalt binder. The polymer modified asphalt adhesive prepared by the invention has high cohesiveness of polyurethane and good weather resistance of emulsified asphalt, can resist erosion of water, ultraviolet rays and chemical corrosion, and remarkably improves the crack resistance, wear resistance and durability of a pavement seal.

The invention relates to the technical field of waterproof coiled materials, and discloses modified rubber powder and a preparation method thereof, a composition for a coating material, the coating material and a preparation method thereof, and a modified asphalt waterproof coiled material. The method for preparing the modified rubber powder comprises the following steps: (1) in the presence of water, soaking sunflower seed meal to obtain an intermediate I; (2) stirring the intermediate I and cellulase to obtain an intermediate II; and (3) in the presence of ethanol, contacting and mixing raw material rubber powder with the intermediate II to obtain the modified rubber powder, relative to 100 parts by weight of the sunflower seed meal, the use amount of the cellulase is 0.1-0.5 part by weight, and the use amount of the raw material rubber powder is 100-400 parts by weight. The modified asphalt waterproof coiled material provided by the invention has excellent antibacterial performance and also has good adhesion and aging resistance.

The application belongs to the technical field of highway pavement repairing materials, and particularly relates to a flame-retardant road sealant and further discloses a preparation method thereof. The flame-retardant road sealant has good waterproof performance, water resistance, anti-aging performance and flame-retardant performance, and has a wide application range, and the preparation method is simple and easy to implement, and is suitable for industrial promotion.

The invention provides a polyurethane modified asphalt sealant composition as well as a preparation method and application thereof, and belongs to the technical field of building materials. The composition of the polyurethane modified asphalt sealant is prepared from the following components in percentage by mass: 35 to 45 percent of petroleum asphalt, 1 to 4 percent of biomass asphalt, 5 to 8 percent of thermoplastic elastomer, 0.1 to 3 percent of isocyanate-terminated polyurethane prepolymer, 5 to 10 percent of softening agent, 15 to 25 percent of filler, 0.1 to 2 percent of fiber and 15 to 22 percent of S150 solvent oil. According to the sealant disclosed by the invention, a three-dimensional network structure is formed through chemical reaction of active components in the biomass asphalt and the petroleum asphalt and the isocyanate-terminated polyurethane prepolymer, so that the durability and the high and low temperature resistance of the sealant are improved; the thermoplastic elastomer is added, so that the elasticity and deformation recovery capability of the sealant are further enhanced; and meanwhile, the environment-friendly S150 solvent oil is adopted, so that the content of volatile organic compounds is reduced while the processing property is ensured, and the coating is safer and more environment-friendly.

This invention discloses a thin-layer, maintenance-free, non-stick, and waterproof adhesive material for wheels, its preparation method, and its applications. It relates to the technical field of non-emulsified adhesive materials for interlayer bonding. The thin-layer, maintenance-free, non-stick, and waterproof adhesive material comprises the following components by weight percentage: 26-50% base asphalt, 1-3% carboxylated nitrile rubber, 1-3% thermoplastic elastomer, 2-6% petroleum resin, 4-8% bio-based oil, 2-4% filler, and 40-50% organic solvent. The thin-layer, maintenance-free, non-stick, and waterproof adhesive material of this invention features room-temperature application, deep penetration, non-stick properties, high bonding strength, and regeneration capabilities. It can be used as an adhesive material between asphalt layers or between asphalt layers and cement concrete pavement.

To provide a waterproofing method that can suppress the occurrence of blistering between the waterproofing layer and the adhesive layer formed on top of it, as well as within the adhesive layer, and that exhibits excellent adhesive strength between the layers. [Solution] A waterproofing method comprising forming a waterproof layer on a substrate and then forming an adhesive layer on the waterproof layer, wherein the waterproof layer is formed by applying a two-component waterproofing material to the substrate, the material comprising a first agent containing a compound having an isocyanate group and a second agent containing a compound having an active hydrogen-containing group, and the molar ratio of the isocyanate group to the active hydrogen-containing group is 0.75 or more and 0.95 or less.

A counter tapered diblock copolymer composition comprises a monovinyl aromatic monomer A polymerized with a conjugated diene monomer B to form the structure A-[A / B], where the [A / B] block is a copolymer of the A and B monomers that is counter tapered, which means the ratio of B to A is lower proximal to the A block relative to the ratio of B to A distal to the A block. The [A / B] block preferably has a vinyl content that is higher proximal to the A block relative to the vinyl content distal to the A block. The diblock copolymer is preferably partially coupled or formed with a multifunctional initiator to provide a mixture of the diblock copolymer composition and a linear (A-[A / B])-X-([B / A]-A) structure and / or a coupled radial and / or multiarm structure (A-[A / B])n-X, where X is the residue of a coupling agent or an initiator. Asphalt and adhesive compositions are made with the diblock copolymer composition and with the mixture.

The invention relates to the technical field of crack pouring adhesives, in particular to a normal-temperature self-healing asphalt pavement crack pouring adhesive and a preparation method thereof. The method adopts a two-step method for preparation and comprises the following steps: firstly, preparing normal-temperature liquid asphalt from 100 parts by mass of 90 # matrix asphalt, 15-25 parts by mass of waste engine oil, 3-5 parts by mass of soybean oil methyl ester, 3-5 parts by mass of palm oil methyl ester and 2-3 parts by mass of a polystyrene butadiene copolymer (SBR latex); according to the crack pouring adhesive, the pressure-sensitive self-healing capsule is added on the basis of a conventional crack pouring adhesive, when an original crack expands due to stress change or generates a new crack due to low-temperature shrinkage, the concentrated stress at the tip of the crack reaches the critical fracture pressure of the capsule, and the capsule can directionally release a regenerant, so that the self-repairing of the crack pouring adhesive is realized; therefore, the aged crack pouring glue is activated, the crack repairing capability of the crack pouring glue is recovered, and the action aging of the crack pouring glue is prolonged.

An asphalt binder composition for use in asphalt-containing materials that includes at least one of a virgin asphalt binder, an air-blown virgin asphalt binder, or a reclaimed asphalt binder material, and an anti-aging agent that is a reaction product of ingredients including (i) a first material including a compound containing one or more carbonyl groups and (ii) a second material that reacts with the one or more carbonyl groups of the first material and adds hydroxyl groups to the reaction product, where the anti-aging agent has a hydroxyl value of greater than about 25 mg KOH / g.

The present application relates to a kind of modified asphalt coating material with penetration plugging function, the raw material of preparation described modified asphalt coating material is composed of sulfonated asphalt, rock asphalt, modifier, porous ceramic particles, the heat resistance of the modified asphalt coating material is 90-105 ℃, 2h no flow dripping, low temperature flexibility is minus 30- minus 25 ℃, 2h no crack.The modified asphalt coating material with penetration plugging function of the present application also has water solubility and oil solubility, and can also make modified asphalt coating material meet the performance required by waterproofing membrane, such as high and low temperature resistance.The waterproofing membrane prepared by the coating material of the present application can timely plug and repair when water channeling and leakage occurs due to cracks or external damage of concrete base, and terminate water channeling and leakage.It can also be used as a buffer layer to continue to absorb structural stress and avoid the generation of new cracks.The preparation method of the coating material of the present application is simple and does not require complex chemical reactions, and is more suitable for promotion.

The application discloses a prefabricated double-channel waterproof composite roll material, which comprises two layers of base layers, two layers of adhesive layers and a release layer arranged in a laminated mode along the thickness direction of the roll material, the two layers of base layers and the two layers of adhesive layers are alternately distributed, the release layer is arranged on the side of the adhesive layer away from the base layer, and the number of layers of the roll material can be greatly reduced; wherein the base layer on the side away from the release layer comprises at least one of a polyvinyl chloride layer and a polyurethane layer, the tensile force of which is greater than or equal to 300 N / 50 mm, and the thermal shrinkage rate is less than or equal to 1.5%; the base layer on the side close to the release layer comprises at least one of a polyester layer, a glass fiber base layer and a polymer film layer, and the appearance flatness of the finished roll material can be improved by using the two layers of base layers of the specific materials.

The invention discloses an exposed high-molecular waterproof coiled material compounded with asphalt, which comprises a TPO (thermoplastic polyolefin) waterproof coiled material base layer, an isolating layer and an asphalt self-adhesive layer arranged between the TPO waterproof coiled material base layer and the isolating layer, the TPO waterproof roll base layer is prepared from the following components in parts by mass: 100 to 120 parts of TPO, 45 to 55 parts of magnesium hydroxide, 14 to 16 parts of encapsulated red phosphorus, 4 to 6 parts of zinc borate, 4 to 6 parts of pigment and 9 to 13 parts of filler; the asphalt self-adhesive layer is prepared from 90 to 110 parts of 90 # asphalt, 30 to 40 parts of polystyrene butadiene copolymer, 13 to 17 parts of styrene-butadiene-styrene block copolymer, 7 to 9 parts of chloroprene rubber, 8 to 12 parts of terpene resin, 40 to 60 parts of naphthenic oil and 18 to 22 parts of calcium powder. According to the magnesium hydroxide, red phosphorus and zinc borate ternary system, through a triple mechanism of interface chemical bonding, nanometer enhanced network and crystallization optimization, the tensile strength can be improved while efficient flame retardance is achieved.

The application relates to the technical field of building engineering, and provides a concrete paving structure for a steel bridge deck and a paving method thereof, the paving structure comprising an anticorrosion layer on a steel bridge deck plate, a second-order solidified epoxy resin layer on the anticorrosion layer, and an asphalt concrete layer on the second-order solidified epoxy resin layer; the asphalt concrete layer contains a modifier with graphite nanosheets, SIS, UHMWPE, epoxy resin and naphthenic oil as main components; the application realizes significant improvement of the deformation followability of the paving structure by forming a specific second-order solidified epoxy resin layer and forming an asphalt concrete layer modified by a specific modifier on the second-order solidified epoxy resin layer, and the strength, the shear resistance and the fatigue resistance of the overall paving structure are improved. In addition, the paving structure has simple construction mode and wide application range.

The invention discloses a thin overlay maintenance-free wheel-sticking-free bonding waterproof material as well as a preparation method and application thereof, and relates to the technical field of interlayer bonding non-emulsified bonding layer materials. The thin overlay maintenance-free wheel-sticking-free bonding waterproof material comprises the following components in percentage by weight: 26-50% of matrix asphalt, 1-3% of carboxy nitrile rubber, 1-3% of thermoplastic elastomer, 2-6% of petroleum resin, 4-8% of bio-based oil, 2-4% of filler and 40-50% of organic solvent, the thin overlay maintenance-free wheel-sticking-free bonding waterproof material disclosed by the invention has the characteristics of normal-temperature construction, deep permeability, wheel sticking resistance, high bonding strength, regeneration function and the like, and can be used as a bonding layer material between asphalt layers or between the asphalt layer and a cement concrete pavement.

The invention discloses a high-performance cold crack repairing crack pouring adhesive and a preparation method thereof. The high-performance cold crack repairing crack pouring adhesive is prepared from 100 parts by mass of matrix asphalt, 11-13 parts by mass of a modifier, 12-16 parts by mass of 80-mesh rubber powder, 7-9 parts by mass of aromatic hydrocarbon oil, 16-18 parts by mass of DOM, 3 parts by mass of terpene resin and 0.3 part by mass of a stabilizer. The invention solves the problem that the existing pouring sealant has insufficient performance and is not suitable for cold regions.

The application discloses a polymer asphalt composite waterproof roll material and a preparation method thereof. The waterproof roll material comprises an asphalt self-adhesive waterproof layer, an oil separation anti-seepage layer arranged on one side of the asphalt self-adhesive waterproof layer along the thickness direction of the asphalt self-adhesive waterproof layer, and a polymer waterproof layer arranged on the side of the oil separation anti-seepage layer away from the asphalt self-adhesive waterproof layer. The oil separation anti-seepage layer comprises two or more permeation pressure gradient layers arranged between the asphalt self-adhesive waterproof layer and the polymer waterproof layer. By arranging the oil separation anti-seepage layer on one side of the asphalt self-adhesive waterproof layer along the thickness direction of the asphalt self-adhesive waterproof layer and arranging the polymer waterproof layer on the side of the oil separation anti-seepage layer away from the asphalt self-adhesive waterproof layer, the oil separation anti-seepage layer forms a multilayer gradient permeation pressure in the direction of oil migration, the change of the permeation pressure hinders the migration of oil from the asphalt self-adhesive waterproof layer to the polymer waterproof layer, the yellowing and performance change of the polymer waterproof layer are prevented, and the waterproof roll material has good waterproof effect and service life.

The present application relates to the field of waterproof coating, disclose a waterproof coating composition, waterproof coating and its preparation method, the composition contains main agent and adjuvant, the main agent includes SBS modified emulsified asphalt, acrylic emulsion and first component, the total weight of the composition is taken as the basis, the content of SBS emulsified asphalt is 30wt%-40wt%, the content of acrylic emulsion is 20wt%-25wt%, the content of first component is 35wt%-45wt%, the first component contains semi-hydrated gypsum and component A with mass ratio of 1:0.5-2, the component A is heavy calcium and / or barium sulfate, the waterproof coating prepared by the waterproof coating composition provided by the present application has short drying time, which can significantly improve the construction efficiency.