Composition for roadway, bridge deck or railway repair

Abstract

The present invention relates to a composition suitable for roadway, bridge deck, or railway repair. It also relates to a kit comprising such composition, and to a method for repairing a roadway, bridge deck, or railway, using such composition or kit.

Description

[0001] COMPOSITION FOR ROADWAY, BRIDGE DECK OR RAILWAY REPAIR

[0002] The present invention relates to a composition suitable for roadway, bridge deck, or railway repair. It also relates to a kit comprising such composition, and to a method for repairing a roadway, bridge deck, or railway, using such composition or kit.

[0003] Polymer-based compositions have emerged as a pivotal innovation in the field of roadway repair, offering a range of benefits that traditional materials like asphalt and concrete cannot match. These advanced materials, which include epoxy resins, polyurethanes, acrylics, and polyester resins, are increasingly favored for their exceptional properties such as durability, flexibility, and rapid curing times.

[0004] Epoxy resins are particularly valued for their strong adhesive properties and resistance to environmental factors, making them ideal for applications such as crack sealing and patching. Their ability to form a robust bond with the existing roadway surface ensures long-lasting repairs that can withstand significant stress and strain. Polyurethanes, on the other hand, are renowned for their excellent flexibility, which allows them to accommodate the thermal expansion and contraction of road surfaces. This property is advantageous for joint sealing and pothole repairs, where the material must adapt to changing temperatures without cracking or losing adhesion.

[0005] Acrylic-based materials are known for their quick curing times and UV resistance, making them suitable for surface repairs and protective coatings. These materials can be applied rapidly and set quickly, minimizing traffic disruptions and allowing for faster reopening of repaired roadways. Additionally, their resistance to UV degradation ensures that the repairs remain effective and aesthetically pleasing over time. Polyester resins, with their high strength and resistance to wear and tear, are often used in overlay systems and structural repairs. These materials provide a durable surface that can withstand heavy traffic loads and harsh environmental conditions.

[0006] Despite these advantages, polymer-based compositions for roadway repair face some limitations. In particular, these systems often incorporate fillers such as calcium carbonate and sand, which, while enhancing the material's properties, also raise concerns about environmental impact. The extraction and processing of these fillers can contribute to resource depletion and environmental degradation.

[0007] Thus, there remains a need to provide an alternative system suitable for roadway repair, which is more sustainable and eco-friendly, while preserving the properties, in particular the mechanical properties, of the existing systems.SUMMARY

[0008] In this context, the inventors have developed a composition which combines a (meth)acrylate-terminated polymer, (meth)acrylate monomers and at least one sustainable filler chosen from fly ash, recycled glass recycled plastic, recycled rubber, recycled ceramic, recycled asphalt, and recycled concrete. Surprisingly, the inventors have demonstrated that the substitution of standard fillers by said sustainable filler(s) did not deteriorate the physical properties, such as the compressive strength, of the cured product. They also showed that some physical properties could even be improved compared to compositions known in the art for roadway repair applications. A lower density of the composition could also be obtained, which means that more volume of product is generated per a given kilogram, leading to an increased coverage per unit mass, and thus a more efficient use of the product.

[0009] Thus, the present invention relates to a composition comprising:

[0010] - a (meth)acrylate-terminated polymer,

[0011] - a (meth)acrylate monomer Ml having a glass transition temperature above 50 °C, preferably above 70 °C,

[0012] - a (meth)acrylate monomer M2 having a glass transition temperature below 35°C, preferably below 20 °C, more preferably below 0 °C, and

[0013] - at least one filler chosen from fly ash, recycled glass, recycled plastic, recycled rubber, recycled ceramic, recycled asphalt, and recycled concrete.

[0014] More particularly, the present invention relates to a composition which preferably comprises:

[0015] - a (meth)acrylate-terminated polymer,

[0016] - a (meth)acrylate monomer Ml having a glass transition temperature above 50 °C, preferably above 70 °C,

[0017] - a (meth)acrylate monomer M2 having a glass transition temperature below 20 °C, preferably below 0 °C, and

[0018] - at least one filler chosen from fly ash, recycled glass, and recycled plastic.

[0019] In some embodiments, said composition comprises at least one filler chosen from fly ash, recycled glass, and recycled plastic.

[0020] In some embodiments, said composition comprises at least two fillers chosen from fly ash, recycled glass, and recycled plastic, preferably said composition comprises fly ash and at least one of recycled glass and recycled plastic, more preferably, said composition comprises fly ash and recycled glass.In some embodiments, said recycled glass comprises (preferably essentially consists of, more preferably consists of) particles of recycled glass being such that at least 80 % (preferably at least 90 %) of said particles have a particle size from 0.02 to 6.0 mm, preferably from 0.02 to 3.0 mm, more preferably from 0.05 to 2.0 mm, even more preferably from 0.1 to 1.0 mm.

[0021] In some embodiments, the total weight content of said at least one filler is from 50 to 90 %, preferably from 65 to 80 %, based on the total weight of the composition.

[0022] In some embodiments, said monomer Ml is methyl methacrylate.

[0023] In some embodiments, said monomer M2 is chosen from 2-ethylhexyl acrylate, lauryl methacrylate, poly(propyleneglycol) methacrylate, N-butyl methacrylate, isononyl acrylate, and any combination thereof.

[0024] In some embodiments, said (meth)acrylate-terminated polymer is:

[0025] - a (meth)acrylate-terminated polyurethane,

[0026] - a copolymer of methyl methacrylate and a C2-C22 alkyl (meth)acrylate (preferably N-butyl methacrylate), or

[0027] - a mixture thereof.

[0028] In some embodiments, said (meth)acrylate-terminated polymer is a (meth)acrylate-terminated polyurethane, optionally in mixture with a copolymer of methyl methacrylate and a C2-C22 alkyl (meth)acrylate, which is preferably N-butyl methacrylate.

[0029] In some embodiments, said (meth)acrylate-terminated polymer is a (meth)acrylate-terminated polyurethane.

[0030] Preferably, said (meth)acrylate-terminated polyurethane is formed from a polyol, a polyisocyanate and a (meth)acrylate comprising at least one (preferably, exactly one) NCO-reactive group.

[0031] In some embodiments, said polyol is a polyether polyol having a OH-functionality higher than 2, and preferably lower than 3.

[0032] In some embodiments, said polyisocyanate is a diisocyanate, preferably chosen from diphenylmethane-4, 4' -diisocyanate, diphenylmethane-2, 2' -diisocyanate, diphenylmethane-2,4'-diisocyanate, and any mixture thereof.

[0033] In some embodiments, said (meth)acrylate comprising at least one NCO-reactive group is a (meth)acrylate comprising at least one (preferably, exactly one) group chosen from hydroxy group, mercapto group, primary amino group, secondary amino group, carboxy group, and amido group, preferably is 2-hydroxypropyl methacrylate.

[0034] In some embodiments, the weight content of monomer Ml is from 3 to 20 %, preferably from 5 to 15 %, more preferably from 5 to 10 %, based on the total weight of the composition.

[0035] In some embodiments, the weight content of monomer M2 is from 3 to 20 %, preferably from 4 to 15 %, more preferably from 4 to 10 %, based on the total weight of the composition.In some embodiments, the weight content of (meth)acrylate-terminated polymer is from 1 to 10 %, preferably from 2 to 7 %, more preferably from 3 to 5 %, based on the total weight of the composition.

[0036] The present invention also relates to a kit comprising:

[0037] - a composition as defined herein, and

[0038] - a radical initiator, such as benzoyl peroxide.

[0039] Another object of the present invention is a method for repairing a roadway, bridge deck, or railway, comprising the steps of:

[0040] (i) contacting a composition as defined herein with a radical initiator, so as to obtain a mixture; and (ii) applying said mixture into or onto a roadway, bridge deck, or railway to be repaired, preferably into a micro-trench of a roadway to be repaired.

[0041] DETAILED DESCRIPTION

[0042] - "wt%" means "% by weight".

[0043] - As used herein, the expression "(meth)acrylate" encompasses methacrylate and acrylate.

[0044] - Unless otherwise mentioned, the molecular weight of a polymer refers herein to a number-average molecular weight of a polymer, and can be determined by gel permeation chromatography ("GPC"). - Polydispersity index is usually measured by light scattering.

[0045] - The glass transition temperature ("Tg") can be measured by differential scanning calorimetry (DSC). - It is understood that a Tg provided for a monomer, such as a (meth)acrylate monomer, actually refers to the Tg of the corresponding homopolymer, and more particularly to the corresponding homopolymer typically having (i) a molecular weight of 2000 to 500000 g / mol, in particular about 100 000 g / mol, and (ii) a polydispersity index of 0.5 to 2.5, in particular about 1.

[0046] The composition of the invention comprises a (meth)acrylate-terminated polymer. A (meth)acrylate-terminated polymer refers to a polymer (and in particular each of its chains) having a (meth)acrylate moiety at at least one of its ends, preferably at each of its ends.

[0047] The (meth)acrylate-terminated polymer may for instance be a methacrylate-terminated polymethacrylate, an acrylate-terminated polyacrylate, or a mixture thereof.

[0048] The (meth)acrylate-terminated polymer may for instance be a (meth)acrylate-terminated polycaprolactone, a (meth)acrylate-terminated polyester (e.g. adipate / aliphatic polyester), a (meth)acrylate-terminated polysiloxane, a (meth)acrylate-terminated polycarbonate, a(meth)acrylate-terminated epoxy-(meth)acrylate oligomer, a (meth)acrylate-terminated polyacrylate, a (meth)acrylate-terminated polymethacrylate a (meth)acrylate-terminated polyether, copolymers thereof, or mixtures thereof.

[0049] More particularly, the (meth)acrylate-terminated polymer may for instance be a (meth)acrylate-terminated polycaprolactone, a (meth)acrylate-terminated polyester (e.g. adipate / aliphatic polyester), a (meth)acrylate-terminated polysiloxane, a (meth)acrylate-terminated polycarbonate, a (meth)acrylate-terminated epoxy-(meth)acrylate oligomer, a (meth)acrylate-terminated polyether, copolymers thereof, or mixtures thereof.

[0050] Preferably, said (meth)acrylate-terminated polymer is:

[0051] - a (meth)acrylate-terminated polyurethane,

[0052] - a copolymer of methyl methacrylate and a C2-C22 alkyl (meth)acrylate, preferably N-butyl methacrylate, or

[0053] - a mixture thereof.

[0054] Said " C2-C22 alkyl (meth)acrylate" is advantageously a C2-C12 alkyl (meth)acrylate, preferably a C2-C6 alkyl (meth)acrylate, more preferably a C3-C5 alkyl (meth)acrylate, even more preferably a C3-C5 alkyl methacrylate such as N-butyl methacrylate.

[0055] In some embodiments, C2-C22 alkyl (meth)acrylate is chosen from ethyl methacrylate, butyl methacrylate, 2-ethylhexyl methacrylate, lauryl methacrylate, or stearyl methacrylate.

[0056] Examples of C2-C6 alkyl include ethyl, propyl, isopropyl, butyl, isobutyl, pentyl and hexyl.

[0057] Examples of C3-C5 alkyl include propyl, isopropyl, butyl, isobutyl, and pentyl.

[0058] In particular, said (meth)acrylate-terminated polymer may be a (meth)acrylate-terminated polyurethane, optionally in mixture with a copolymer of methyl methacrylate and a C2-C22 alkyl (meth)acrylate.

[0059] More particularly, said (meth)acrylate-terminated polymer may be a (meth)acrylate-terminated polyurethane, optionally in mixture with a copolymer of methyl methacrylate and N-butyl methacrylate.

[0060] More preferably, said (meth)acrylate-terminated polymer is a (meth)acrylate-terminated polyurethane. A (meth)acrylate-terminated polyurethane refers to a polyurethane (and in particular each of its chains) having a (meth)acrylate moiety at at least one of its ends, preferably at each of its ends.Such (meth)acrylate-terminated polyurethane is typically formed from a polyol, a polyisocyanate and a (meth)acrylate comprising at least one NCO-reactive group. More particularly, it may be formed by a process comprising:

[0061] i) contacting a polyol and a polyisocyanate, under conditions allowing to form a NCO-terminated polyurethane; and

[0062] ii) contacting said NCO-terminated polyurethane with a (meth)acrylate comprising at least one NCO-reactive group.

[0063] As used herein, a "polyol" refers to:

[0064] - any monomeric compound having at least hydroxy (-OH) groups (i.e. "monomeric polyol"),

[0065] - any polymer having a OH-functionality of at least 2 (for instance from 2 to 6, from 2 to 5, from 2 to 4, from 2 to 3, or from 2 to 2.5) (i.e. "polymeric polyol"), or

[0066] - a mixture thereof.

[0067] As used herein, the "OH-functionality" of a polymeric polyol is defined by the following equation (1):

[0068]

[0069] in which, for each polymer chain j of polymer: xj is the number of moles of such polymer chain j and nj is the number of OH groups of such polymer chain j.

[0070] Monomeric polyols usually have a molecular weight from 40 to 300 g / mol. Examples of monomeric polyol include, but are not limited to, ethylene glycol, propylene glycol, 1,2-propanediol, 1,3-propanediol, 1,2-butanediol, 1,3-butanediol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, glycerol, neopentyl glycol, trimethylol propane, pentaerythritol, cyclohexane dimethanol, 1,2- cyclohexanediol, 1,4-cyclohexanediol, 1,8-octanediol, diethylene glycol, triethylene glycol, dipropylene glycol, tripropylene glycol, and any mixture thereof.

[0071] Polymeric polyols usually have a molecular weight from 300 to 10000 g / mol, more particularly from 500 to 5000 g / mol, preferably from 1000 to 3000 g / mol.

[0072] Examples of polymeric polyols include, but are not limited to, polyether polyols, polycarbonate polyols, polyester polyols, polyisoprene polyols, polybutadiene polyols, copolymers thereof and mixtures thereof, preferably polyether polyols.Polyether polyols can be obtained by the polymerization of a cyclic oxide, for example propylene oxide, ethylene oxide, trimethylene oxide, tetrahydrofuran, 3-methyl tetrahydrofuran or by the addition of one or more of these oxides to initiators such as water, ethylene glycol, propylene glycol, diethylene glycol, glycerol, cyclohexane-dimethanol, trimethylolpropane, pentaerythrityl tetrahydrofuran, bisphenol A. Thus, examples of linear or branched polyether polyols are polypropylene glycol, polyethylene glycol, polytetramethylene glycol or poly(ethylene / propylene) glycol.

[0073] Examples of polyester polyols are ester glycols with one or more alcohol functions which are obtained by condensation of polycarboxylic acids (such as malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, phthalic anhydride) with polyols. Examples of polyols for preparing polyester polyols are ethylene glycol, propylene glycol, 1,3-propanediol, 1,4-butanediol, diethylene glycol, 1,5-pentanediol, 1,6-hexanediol, glycerol, trimethylolpropane, pentaerythritol, cyclohexane-dimethanol or 1,8-octanediol. Polyester polyols can also be obtained by the polymerization of lactones such as caprolactone.

[0074] Polyester polyols can also be obtained from unsaturated fatty acids such as oleic acid, linoleic acid, licanic acid, arachidonic acid, ricinoleic acid or linoleic acid from, for example, linseed, soybean, sunflower, rapeseed or herring oil.

[0075] Polycarbonate polyols can be obtained by esterification of carbonic acid with a diol or a polyol. Polycarbonate polyols can also be obtained by reaction of phosgene or carbonates, such as diethyl carbonate or diphenyl carbonate, with a diol or a polyol (e.g. ethylene glycol, propylene glycol or glycerol).

[0076] The polyol may in particular be a polymeric polyol having a OH-functionality of at least 2 (for instance from 2 to 6, from 2 to 5, from 2 to 4, from 2 to 3, or from 2 to 2.5) or a mixture of a polymeric polyols, each having a OH-functionality of at least 2 (for instance from 2 to 6, from 2 to 5, from 2 to 4, from 2 to 3, or from 2 to 2.5).

[0077] A preferred polyol is polyether polyol. A more preferred polyol is a polyether polyol having a OH-functionality higher than or equal to 2, and preferably lower than or equal to 3. For instance, the polyol may be a mixture of a polyether polyol having a OH-functionality of 2 (which may be referred to as "polyether diol") and a polyether polyol having a OH-functionality of 3 (which may be referred to as "polyether triol").As used herein, the term "polyisocyanate" refers to a compound having at least two isocyanate (-NCO) groups. Preferably, the polyisocyanate is a diisocyanate.

[0078] Typically, said polyisocyanate is a monomeric compound, i.e. not a polymeric compound. The molecular weight of the polyisocyanate may be from 100 to 500 g / mol, more particularly from 120 to 350 g / mol.

[0079] Examples of diisocyanate include, but are not limited to, 1,6-hexamethylene-diisocyanate (HDI), isophorone-diisocyanate (IPDI), methylene bis-(4-cyclohexylisocyanate) (HMDI), pentamethylenediisocyanate (PDI), 4-hexahydrotoluene-diisocyanate, 2,6-hexahydrotoluene diisocyanate, 2,4'-diisocyanatodicyclohexylmethane, 4,4'-diisocyanatodicyclohexylmethane, tetramethylxylenediisocyanate, 2-methyl-l,5-diisocyanatopentane, l,5-diisocyanato-2,2-dimethylpentane,

[0080] 1.4-diisocyanato-3,3,5-trimethylcyclohexane, l,3-diisocyanato-2-methylcyclohexane,

[0081] l,3-diisocyanato-4-methylcyclohexane, l-isocyanato-3,3,5-trimethyl-5-isocyanatomethylcyclohexane, l-isocyanato-l-methyl-4-isocyanatomethylcyclohexane,

[0082] 4,4'-diisocyanato-3,3'-dimethyldicyclohexylmethane, 4,4'-diisocyanato-3,3',5,5'-tetramethyldicyclohexylmethane, 1,8-diisocyanato-p-menthane, bis(isocyanatomethyl)norbornane, bis-(isocyanatomethyl)cyclohexane, 1,4-tetramethylene-diisocyanate, 1,3-bis(isocyanatomethyl)cyclohexane, l,4-bis(isocyanatomethyl)cyclohexane, cyclohexane-1,3-diisocyanate, cyclohexane-l,4-diisocyanate, 1,10-decane-diisocyanate, 1,12-dodecane-diisocyanate, 2.2.4-trimethylhexamethylene-diisocyanate, 2,4,4-trimethylhexamethylene-diisocyanate, diphenylmethane-2,2'-diisocyanate (2,2'-MDI), diphenylmethane-2,4'-diisocyanate (2,4'-MDI), diphenylmethane-4,4'-diisocyanate (4,4'-MDI), 4, 4' -dibenzyl diisocyanate (4, 4'-DBDI), toluene 2,4-diisocyanate (2,4-TDI), toluene 2,6-diisocyanate (2,6-TDI), m-xylylene diisocyanate (m-XDI), 2,4'-dibenzyl diisocyanate (2,4'-DBDI), l,3-bis(isocyanatomethyl)benzene, 1,4-bis(isocyanatomethyl)benzene, l,3-bis(l-isocyanato-l-methylethyl)benzene, l,4-bis(l-isocyanato-l-methylethyl)benzene, 1,5-diisocyanatonaphthalene, or any mixture thereof.

[0083] Preferred diisocyanates are diphenylmethane-4, 4' -diisocyanate (4,4'-MDI), diphenylmethane-2,2'-diisocyanate (2,2'-MDI), diphenylmethane-2,4'-diisocyanate (2,4'-MDI), or any mixture thereof.

[0084] For preparing the polyurethane, the NCO / OH ratio is advantageously from 1 to 10, preferably from 1 to 5, more preferably from 1.1 to 2.

[0085] The NCO / OH ratio is the ratio of the molar amount of NCO groups to the molar amount of OH groups. If not known, the molar amount of NCO groups in a polyisocyanate can be determined by titration according to standard NF EN ISO 148962009-05 - Plastics - Polyurethane raw materials - Determination of isocyanate content.If not known, the molar amount of OH groups in a polyol can be determined by titration according to standard ISO 14900:2023 - Plastics - Polyols for use in the production of polyurethanes - Determination of hydroxyl number.

[0086] The polyol and the polyisocyanate can be reacted in the presence of a catalyst. Examples of catalysts for such reaction include, but are not limited to, metal-based catalysts (such as zinc-based catalyst or tin-based catalysts) or tertiary amines (such as triethylamine, tributylamine, l,4-diazobicyclo-[2.2.2]-octane).

[0087] Step i) comprising contacting a polyol and a polyisocyanate allows to form a NCO-terminated polyurethane. The NCO-terminated polyurethane refers to a polyurethane (more particularly, each of its chains) having NCO group at at least one of its ends, preferably at each of its ends.

[0088] As used herein, "NCO-reactive group" refers to a group which is able to react, typically through a condensation reaction, with an isocyanate (NCO) group. Such NCO-reactive group may in particular be a group containing an active hydrogen. An active hydrogen refers to a hydrogen which, because of its position in the molecule, displays significant activity according to the Zerewitnoff test described by Wohler in the Journal of the American Chemical Society , Vol. 49, p. 3181 (1927).

[0089] Such NCO-reactive groups are well-known to the skilled artisan. For instance, such NCO-reactive groups may be a hydroxy group (-OH), a mercapto group (-SH), a primary amino group (-NH2), a secondary amino group (-NH-), a carboxy (-COOH), or an amido (-C(O)-NH-, in particular -C(O)NHz). Preferably, such NCO-reactive group is a hydroxy group (-OH) or a primary amino group (-NH2) More preferably, such NCO-reactive group is a hydroxy group (-OH).

[0090] Preferably, said (meth)acrylate comprising at least one NCO-reactive group comprises one or two NCO-reactive groups, more preferably exactly one NCO-reactive group.

[0091] Typically, said (meth)acrylate comprising at least one NCO-reactive group is a monomeric compound, i.e. not a polymeric compound. The molecular weight of the (meth)acrylate comprising at least one NCO-reactive group may be from 100 to 500 g / mol, more particularly from 120 to 350 g / mol.

[0092] Preferably, the (meth)acrylate comprising at least one NCO-reactive group comprises:

[0093] - exactly one (meth)acrylate group, and

[0094] - exactly one NCO-reactive group.

[0095] Said (meth)acrylate comprising at least one NCO-reactive group may in particular be represented by the following formula (I):HzC^R^- Oj-O-R2(I),

[0096] in which:

[0097] - R1is a hydrogen or a methyl, and

[0098] - R2is a hydrocarbon group comprising at least one (preferably exactly one) NCO-reactive group (preferably comprising exactly one -OH group).

[0099] R2may in particular be a C2-C8 alkyl group substituted by at least one NCO-reactive group (preferably exactly one NCO-reactive group, such as -OH group), or a polyalkylene glycol group (such as a polyethylene glycol or a polypropylene glycol).

[0100] Examples of(meth)acrylate comprising at least one NCO-reactive group include, but are not limited to, 2-hydroxyethyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, 3-hydroxypropyl (meth)acrylate, 4-hydroxybutyl (meth)acrylate, 2-hydroxybutyl (meth)acrylate, 5-hydroxypentyl (meth)acrylate, 6-hydroxyhexyl (meth)acrylate, 2-aminoethyl (meth)acrylate, 2-aminopropyl (meth)acrylate, 3-aminopropyl (meth)acrylate, 4-aminobutyl (meth)acrylate, 2-aminobutyl (meth)acrylate, 5-aminopentyl (meth)acrylate, 6-aminohexyl (meth)acrylate, polypropylene glycol) methacrylate, or any mixture thereof.

[0101] Preferably, said (meth)acrylate comprising at least one NCO-reactive group is 2-hydroxypropyl methacrylate, 3-hydroxypropyl methacrylate, or a mixture thereof.

[0102] The molar ratio of the (meth)acrylate comprising at least one NCO-reactive group to the NCO ends of the NCO-terminated polyurethane is advantageously at least 1.0, preferably from 1.1 to 10, more preferably from 1.2 to 5. The molar amount of NCO groups in a NCO-terminated polyurethane can be determined by titration according to standard NF EN ISO 14896 2009-05 - Plastics - Polyurethane raw materials - Determination of isocyanate content.

[0103] The (meth)acrylate-terminated polymer advantageously has a molecular weight from 2000 to 100000 g / mol, preferably from 2000 to 80000 g / mol, more preferably from 4000 to 60000 g / mol, even more preferably from 6000 to 20000 g / mol, for instance from 8000 to 15000 g / mol.

[0104] In a preferred embodiment, the (meth)acrylate-terminated polymer comprises (preferably, consists of) a (meth)acrylate-terminated polyurethane having a molecular weight from 4000 to 100000 g / mol (preferably from 5000 to 20000 g / mol).

[0105] In another preferred embodiment, the (meth)acrylate-terminated polymer comprises (preferably, consists of) a copolymer of methyl methacrylate and a C2-C22 alkyl (meth)acrylate having a molecular weight from 4000 to 100000 g / mol (preferably from 30000 to 90000 g / mol).In yet another preferred embodiment, the (meth)acrylate-terminated polymer comprises (preferably, consists of) a (meth)acrylate-terminated polyurethane having a molecular weight from 4000 to 100000 g / mol (preferably from 5 000 to 20000 g / mol), optionally in mixture with a copolymer of methyl methacrylate and a C2-C22 alkyl (meth)acrylate having a molecular weight from 4000 to 100000 g / mol (preferably from 30000 to 90000 g / mol).

[0106] Advantageously, the glass transition temperature of the (meth)acrylate-terminated polymer is below 80°C, preferably below 40°C, for instance below 0°C. In some embodiments, the composition comprises one or more (meth)acrylate-terminated polymers, and at least one of the (meth)acrylate-terminated polymers has a Tg below 80°C, preferably below 40°C, for instance below 0°C.

[0107] The weight content of (meth)acrylate-terminated polymer is advantageously from 1 to 10 %, preferably from 2 to 7 %, more preferably from 3 to 5 %, based on the total weight of the composition.

[0108] The composition of the invention also comprises a (meth)acrylate monomer having a glass transition temperature above 50 °C (noted "Ml" hereinafter).

[0109] Preferably, the Tg of Ml is above 70°C, more preferably above 90°C (and usually lower than 250 °C).

[0110] Examples of said monomer Ml include, but are not limited to, methyl methacrylate, ethyl methacrylate, isobornyl acrylate, isobornyl methacrylate, isobutyl methacrylate, or any mixture thereof.

[0111] Preferably, said monomer Ml is methyl methacrylate.

[0112] The weight content of monomer Ml is advantageously from 3 to 20 %, preferably from 5 to 15 %, more preferably from 5 to 10 %, based on the total weight of the composition.

[0113] The composition of the invention also comprises a (meth)acrylate monomer having a glass transition temperature below 35°C, preferably below 20 °C (noted "M2" hereinafter).

[0114] More preferably, the Tg of M2 is below 10°C, for instance below 0°C.

[0115] Usually, the Tg of M2 is above -80 °C.

[0116] Examples of said monomer M2 include, but are not limited to, 2-ethylhexyl acrylate, lauryl methacrylate, poly(propyleneglycol) methacrylate, N-butyl methacrylate, isononyl acrylate, butyl acrylate, butyl methacrylate, ethyl acrylate and any combination thereof.Preferably, said monomer M2 is chosen from 2-ethylhexyl acrylate, lauryl methacrylate, poly(propyleneglycol) methacrylate, N-butyl methacrylate, isononyl acrylate, and any combination thereof.

[0117] More preferably, said monomer M2 is a mixture of:

[0118] - N-butyl methacrylate, and

[0119] - one among 2-ethylhexyl acrylate, lauryl methacrylate, and poly(propyleneglycol) methacrylate.

[0120] The weight content of monomer M2 is advantageously from 3 to 20 %, preferably from 4 to 15 %, more preferably from 4 to 10 %, based on the total weight of the composition.

[0121] The composition of the invention also comprises at least one (preferably at least two) filler chosen from fly ash, recycled glass, recycled plastic, recycled rubber, recycled ceramic, recycled asphalt, and recycled concrete.

[0122] Recycled ceramic may in particular be recycled ceramic tiles, which are typically crushed. Recycled ceramic may be particles of recycled ceramic being such that at least 80 % (preferably at least 90 %) of said particles have a particle size from 0.02 to 6.0 mm, preferably from 0.02 to 3.0 mm, more preferably from 0.05 to 2.0 mm, even more preferably from 0.1 to 1.0 mm.

[0123] Recycled rubber may in particular be obtained from tyres (e.g. truck tyres), more particularly from tyre tread, tyre buffing, or tread ends. Recycled rubber is typically shred. Recycled rubber may be particles of recycled rubber being such that at least 80 % (preferably at least 90%) of said particles have a particle size from 0.02 to 6.0 mm, preferably from 0.02 to 3.0 mm, more preferably from 0.05 to 2.0 mm, even more preferably from 0.1 to 1.0 mm.

[0124] Recycled asphalt and recycled concrete may in particular be obtained from road material waste, for instance from road material waste produced during trench cutting. Recycled asphalt may be particles of recycled asphalt being such that at least 80 % (preferably at least 90 %) of said particles have a particle size from 0.02 to 6.0 mm, preferably from 0.02 to 3.0 mm, more preferably from 0.05 to 2.0 mm, even more preferably from 0.1 to 1.0 mm. Recycled concrete may be particles of recycled concrete being such that at least 80 % (preferably at least 90 %) of said particles have a particle size from 0.02 to 6.0 mm, preferably from 0.02 to 3.0 mm, more preferably from 0.05 to 2.0 mm, even more preferably from 0.1 to 1.0 mm.The composition of the invention preferably comprises at least one (preferably at least two) filler chosen from fly ash, recycled glass, and recycled plastic.

[0125] Said fillers are typically particulate fillers.

[0126] Fly ash is well-known to the skilled artisan. The type of fly ash is not particularly limited. For instance, it may be class C fly ash, class F fly ash, or a mixture thereof. Fly ash advantageously has a d50 from 0.1 to 500 pm, preferably from 1 to 200 pm, more preferably from 2 to 100 pm, even more preferably from 2 to 50 pm. The d50 refers to the value for which 50% of the particles, by volume, have a size above the value and 50% of the particles, by volume, have a size below the value. The d50 can be determined by laser diffraction.

[0127] Recycled glass can, for example, be:

[0128] - flat glass cullet (which can, for example, be from building or automobile glazing);

[0129] - bottle glass cullet;

[0130] - cullet obtained by melting mineral fibers or wool waste (which can, for example, come from production sites (factories) of said wool, from construction sites (construction, deconstruction or demolition) and / or from recycling channels allowing said wool to be recovered in final products, whether or not they are used); and / or

[0131] - from composite materials combining glass and plastic materials.

[0132] The recycled glass may be particles of recycled glass being such that at least 80 % (preferably at least 90 %) of said particles have a particle size from 0.02 to 6.0 mm, preferably from 0.02 to 3.0 mm, more preferably from 0.05 to 2.0 mm, even more preferably from 0.1 to 1.0 mm.

[0133] More particularly, the recycled glass may be a mixture of several recycled glass particle sets having various particle sizes.

[0134] In a particular embodiment, said recycled glass is a mixture of:

[0135] - from 40 to 80 wt% of recycled glass particles being such that at least 80 % (preferably at least 90 %) of said particles have a particle size greater than or equal to 0.5 mm and lower than 6.0 mm (for instance, lower than 3.0 mm),

[0136] - from 10 to 30 wt% of recycled glass particles being such that at least 80 % (preferably at least 90 %) of said particles have a particle size greater than or equal to 0.2 mm and lower than 0.5 mm, and- from 10 to 30 wt% of recycled glass particles being such that at least 80 % (preferably at least 90 %) of said particles have a particle size greater than or equal to 0.02 mm (for instance, greater than or equal to 0.1 mm) and lower than 0.2 mm,

[0137] where the wt% are based on the total weight of recycled glass particles.

[0138] In a particularly advantageous embodiment, said recycled glass is a mixture of:

[0139] - from 40 to 80 wt% of recycled glass particles being such that at least 80 % (preferably at least 90 %) of said particles have a particle size greater than or equal to 0.5 mm and lower than 1.0 mm, - from 10 to 30 wt% of recycled glass particles being such that at least 80 % (preferably at least 90 %) of said particles have a particle size greater than or equal to 0.2 mm and lower than 0.5 mm, and - from 10 to 30 wt% of recycled glass particles being such that at least 80 % (preferably at least 90 %) of said particles have a particle size greater than or equal to 0.1 mm and lower than 0.2 mm, where the wt% are based on the total weight of recycled glass particles.

[0140] Recycled plastic may be:

[0141] - a thermoset plastic, such as plastic urea or plastic melamine, or

[0142] - a thermoplastic, such as polyvinyl chloride, polypropylene, polyethylene, polyethylene terephthalate, or polycarbonate.

[0143] Preferably, the recycled plastic is thermoset plastic, such as plastic urea or plastic melamine.

[0144] Recycled plastic also includes recycled polyvinyl acetal (such as recycled polyvinyl butyral).

[0145] The recycled plastic may be particles of recycled plastic being such that at least 80 % (preferably at least 90 %) of said particles have a particle size 0.02 to 6.0 mm, preferably from 0.02 to 3.0 mm, more preferably from 0.05 to 2.0 mm, even more preferably from 0.1 to 1.0 mm.

[0146] More particularly, the recycled plastic may be a mixture of several recycled plastic particle sets having various particle sizes. For instance, said recycled plastic may be a mixture of:

[0147] - from 40 to 80 wt% of recycled plastic particles being such that at least 80 % (preferably at least 90 %) of said particles have a particle size greater than or equal to 0.5 mm and lower than 6.0 mm (for instance, lower than 3.0 mm, or even lower than 1.0 mm),

[0148] - from 10 to 30 wt% of recycled plastic particles being such that at least 80 % (preferably at least 90 %) of said particles have a particle size greater than or equal to 0.2 mm and lower than 0.5 mm, and - from 10 to 30 wt% of recycled plastic particles being such that at least 80 % (preferably at least 90 %) of said particles have a particle size greater than or equal to 0.02 mm (for instance, greater than or equal to 0.1 mm) and lower than 0.2 mm,where the wt% are based on the total weight of recycled plastic particles.

[0149] Preferably, the composition of the invention comprises:

[0150] - fly ash, and

[0151] - at least one of recycled glass and recycled plastic.

[0152] More preferably, the composition of the invention comprises fly ash and recycled glass.

[0153] Even more preferably, the composition of the invention comprises fly ash and recycled glass, where said recycled glass is a mixture of (based on the total weight of recycled glass particles):

[0154] - from 40 to 80 wt% of recycled glass particles being such that at least 80 % (preferably at least 90 %) of said particles have a particle size greater than or equal to 0.5 mm and lower than 6.0 mm (for instance, lower than 3.0 mm, or even lower than 1.0 mm),

[0155] - from 10 to 30 wt% of recycled glass particles being such that at least 80 % (preferably at least 90 %) of said particles have a particle size greater than or equal to 0.2 mm and lower than 0.5 mm, and - from 10 to 30 wt% of recycled glass particles being such that at least 80 % (preferably at least 90 %) of said particles have a particle size greater than or equal to 0.02 mm (for instance, greater than or equal to 0.1 mm) and lower than 0.2 mm.

[0156] The total weight content of said at least one filler is advantageously from 50 to 90 %, preferably from 65 to 80 %, based on the total weight of the composition.

[0157] In a preferred embodiment, the composition comprises (based on the total weight of the composition): - from 10 to 40 wt% (preferably from 20 to 30 wt%) of fly ash, and

[0158] - from 30 to 70 wt% (preferably from 40 to 60 wt%) of recycled glass.

[0159] In a more preferred embodiment, the composition comprises (based on the total weight of the composition):

[0160] - from 10 to 40 wt% (preferably from 20 to 30 wt%) of fly ash, and

[0161] - from 30 to 70 wt% (preferably from 40 to 60 wt%) of recycled glass,

[0162] wherein the recycled glass comprises (preferably, consists of) particles of recycled glass being such that at least 80 % (preferably at least 90 %) of said particles have a particle size 0.02 to 6.0 mm, preferably from 0.02 to 3.0 mm, more preferably from 0.05 to 2.0 mm, even more preferably from 0.1 to 1.0 mm.In an even more preferred embodiment, the composition comprises (based on the total weight of the composition):

[0163] - from 10 to 40 wt% (preferably from 20 to 30 wt%) of fly ash,

[0164] - from 5 to 15 wt% of recycled glass particles being such that at least 80 % (preferably at least 90 %) of said particles have a particle size greater than or equal to 0.5 mm and lower than 6.0 mm (for instance, lower than 3.0 mm, or even lower than 1.0 mm),

[0165] - from 5 to 15 wt% of recycled glass particles being such that at least 80 % (preferably at least 90 %) of said particles have a particle size greater than or equal to 0.2 mm and lower than 0.5 mm, and - from 20 to 40 wt% of recycled glass particles being such that at least 80 % (preferably at least 90 %) of said particles have a particle size greater than or equal to 0.02 mm (for instance, greater than or equal to 0.1 mm) and lower than 0.2 mm.

[0166] Unless otherwise indicated, the particle sizes refer to particle sizes determined by volume, and using laser diffraction or sieve analysis.

[0167] The composition may further comprise one or more additives chosen from inhibitors, dispersants, rheology modifiers, plasticizers, and accelerators. Preferably, the composition further comprises a dispersant, and optionally one or more chosen from rheology modifiers, inhibitors, plasticizers, and accelerators.

[0168] More preferably, the composition further comprises a dispersant a rheology modifier, and optionally one or more chosen from inhibitors, plasticizers, and accelerators.

[0169] More preferably, the composition further comprises a dispersant, a rheology modifier, an inhibitor, a plasticizer, and an accelerator.

[0170] The weight content of dispersant is advantageously from 0.01 to 0.5 wt%, preferably from 0.05 to 0.2 wt%, based on the total weight of the composition.

[0171] The weight content of rheology modifier is advantageously from 0.1 to 2 wt%, preferably from 0.5 to 1.5 wt%, based on the total weight of the composition.

[0172] Examples of dispersants include, but are not limited, silicones, polyacrylates, polyethers, polycarboxylic acid / polyamine amide mixtures, polycarboxylic acid / alkylammonium salt mixtures, acidic polyester / polyamine amide mixtures or any combination thereof.

[0173] Examples of rheology modifiers include, but are not limited to, fumed silica (or pyrogenic silica), a clay (such as a bentonite clay), a cellulose derivative (such as hydroxyethylcellulose, hydroxypropylcellulose, or methylcellulose), or any combination thereof.Examples of inhibitors include, but are not limited to, (2,2,6,6-tetramethylpiperidin-l-yl)oxy (TEMPO), butylhydroxytoluene (BHT), butylhydroxyanisole (BHA), hydroquinone, 2,6-di-tert-butyl-4-methylphenol, a nitroxide, or any combination thereof.

[0174] The plasticizer may be chosen from polyethylene glycol esters, adipates, sebacates, phthalates, benzoate esters and any combination thereof. Examples include, but are not limited to, tri(ethylene glycol) di(2-ethylhexanoate), tri(ethylene glycol) di(2-ethylbutyrate), tri(ethylene glycol) di(n-heptanoate), tetra(ethylene glycol) di(n-heptanoate), bis(2-butoxyethyl) adipate, dibutyl sebacate, dibutyl phthalate, dioctyl phthalate, or any combination thereof.

[0175] The accelerator may in particular be chosen from amine accelerators, such as diisopropanol-p-toluidine (DIPPT), N,N-dimethyl-p-toluidine (DMPT), N-methyl-N-(2-hydroxyethyl)-p-toluidine (MHPT), paratoluidine ethoxylate (PTE) or a combination thereof.

[0176] Advantageously, the composition does not comprise calcium carbonate, or when present, said calcium carbonate has a weight content of less than 4 wt%, preferably less than 2 wt%, more preferably less than 1 wt%, based on the total weight of the composition.

[0177] Advantageously, the composition does not comprise sand, or when present, said sand has a weight content of less than 4 wt%, preferably less than 2 wt%, more preferably less than 1 wt%, based on the total weight of the composition.

[0178] Advantageously, the composition does not comprise water, or when present, water has a weight content of less than 2 wt%, preferably less than 1 wt%, more preferably less than 0.5 wt%, or even less than 0.2 wt%, based on the total weight of the composition.

[0179] Typically, said (meth)acrylate-terminated polymer, said monomer Ml, said monomer M2 and said at least one filler chosen from fly ash, recycled glass, and recycled plastic represent together more than 90 wt%, preferably more than 95 wt% (and usually less than 98 wt%) of the total weight of the composition.

[0180] The present invention also relates to a kit comprising:

[0181] - a composition as defined herein, and

[0182] - a radical initiator.Typically, said composition of the kit and said radical initiator are in separate compartments. It is understood that the composition (or a compartment comprising said composition) does not comprise a radical initiator. Advantageously, a compartment comprising the radical initiator does not comprise the ingredients (in particular: Ml, M2, and said (meth)acrylate-terminated polymer) of said composition.

[0183] Radical initiators are well known to the skilled artisan. Such component triggers the radical polymerization of (meth)acrylates. Examples of radical initiators include, but are not limited to, azo-bis-isobutyronitrile (AIBN), a peroxide (such as benzoyl peroxide (BPO), lauroyl peroxide (LPO), cumyl peroxide (CPO), dicumyl peroxide (DCP), tert-butyl peroxide (TBP), methylethyl ketone peroxide (MEKP), di-tert-butyl peroxide (DTBP), or any combination thereof), or any combination thereof.

[0184] A preferred radical initiator is benzoyl peroxide.

[0185] The weight content of radical initiator is advantageously from 0.1 to 5%, preferably from 1 to 2 %, based on the weight of said composition of the kit.

[0186] The composition and the kit of the present invention are particularly useful for roadway repair. It may also be useful for bridge deck repair or railway repair.

[0187] The present invention thus also relates to a method for repairing a roadway, a bridge deck, or a railway, comprising the steps of:

[0188] (i) contacting a composition as defined herein with a radical initiator, so as to obtain a mixture; and (ii) applying said mixture into or onto a roadway, bridge deck, or railway to be repaired.

[0189] In a particular embodiment, the method of the invention comprises the steps of:

[0190] (o) providing a kit as defined herein,

[0191] (i) contacting a composition of the kit with a radical initiator of the kit, so as to obtain a mixture; and (ii) applying said mixture into or onto a roadway, bridge deck, or railway to be repaired.

[0192] The roadway, bridge deck or railway is typically asphalt-based, concrete-based, or a combination thereof.

[0193] Roadway repair encompasses repair of any part of a roadway, including a pavement.

[0194] The repair of the roadway, bridge deck or railway may in particular refer to the repair of any damage (e.g. crack or joint), micro-trench infil, over banding, or pot-hole repair.A micro-trench usually has a width from 5 to 300 mm, preferably from 5 to 100 mm.

[0195] Preferably, the repair is roadway repair, and more preferably refers to micro-trench infil. Hence, in a preferred embodiment, step (ii) comprises applying said mixture into a micro-trench of a roadway to be repaired.

[0196] The method of the invention may comprise, after step ii):

[0197] iii) adding overcast aggregates on the mixture applied in step ii).

[0198] Said overcast aggregates are well-known to the skilled artisan. For instance, they may be stone aggregates (e.g. highly polished stone), glass aggregates, plastic aggregates, or any mixture thereof. The particle size of the overcast aggregates is usually such that at least 80 % (preferably at least 90 %) of said particles have a size from 1 to 5 mm, preferably from 1 to 3 mm.

[0199] The composition may also be suitable for making a protection layer or a trafficable layer. The present invention thus also relates to a protection or trafficable layer made from a composition as defined herein or a kit as defined herein.

[0200] The present invention is illustrated by the following non-limiting examples.

[0201] EXAMPLES

[0202] 1- Preparation of compositions

[0203] In order to prepare a composition according to the invention, a methacrylate-terminated polyurethane was first synthesized by mixing the ingredients as described in Table 1.

[0204] Table 1

[0205]

[0206] Then, the resulting mixture comprising the methacrylate-terminated polyurethane was mixed with ingredients as shown in Table 2.

[0207] Table 2

[0208]

[0209] Then, the resulting mixture was combined with fillers, as shown in Table 3, to obtain composition A according to the invention.

[0210] Table 3

[0211]

[0212] A comparative composition was prepared by using a mixture similar to the one described in Table 2 and mixing it with calcium carbonate and sand as fillers (Table 4).

[0213] Table 4

[0214]

[0215] 2- Mechanical performances of compositions of the inventionSamples of the compositions (A and comparative) were cured at 23°C, using 1 wt% of BPO, in a silicone mould of 25 mm cylinder shape with a height of 25 mm, left to cure and tested following day on a tensiometer, with a test speed of 6 mm / minute. The test was done at 3 different temperatures. The samples were compressed to 8 mm and the stress at peak values and Youngs Modulus values were recorded (Table 5).

[0216] Table 5

[0217]

[0218] Results of Table 5 show that the substitution of standard fillers by said sustainable fillers does not deteriorate the physical properties of the cured composition. Sample A has a good flexibility and adaptability. This profile makes it well-suited in particular for environments with moderate temperature shifts, balancing strength with flexibility.

[0219] 3- Density of the compositions

[0220] While a density of 1.87 g.cm-3was measured for the comparative composition, a density of 1.82 g.cnr3was obtained for composition A, namely a reduction of 2.6%. Densities were measured using a pycnometer cup.

Claims

CLAIMS1. A composition comprising:- a (meth)acrylate-terminated polymer,- a (meth)acrylate monomer Ml having a glass transition temperature above 50 °C, preferably above 70 °C,- a (meth)acrylate monomer M2 having a glass transition temperature below 35°C, preferably below 20 °C, more preferably below 0 °C, and- at least one filler chosen from fly ash, recycled glass, recycled plastic, recycled rubber, recycled ceramic, recycled asphalt, and recycled concrete.

2. The composition according to claim 1, wherein said composition comprises at least one filler chosen from fly ash, recycled glass, and recycled plastic.

3. The composition according to claim 1 or 2, wherein said composition comprises at least two fillers chosen from fly ash, recycled glass, and recycled plastic, preferably said composition comprises fly ash and at least one of recycled glass and recycled plastic.

4. The composition according to any one of claims 1 to 3, wherein said composition comprises fly ash and recycled glass.

5. The composition according to any one of claims 1 to 4, wherein said recycled glass comprises particles of recycled glass being such that at least 80 % of said particles have a particle size from 0.02 to 6.0 mm, preferably from 0.02 to 3.0 mm, more preferably from 0.05 to 2.0 mm, even more preferably from 0.1 to 1.0 mm.

6. The composition according to any one of claims 1 to 5, wherein the total weight content of said at least one filler is from 50 to 90 %, preferably from 65 to 80 %, based on the total weight of the composition.

7. The composition according to any one of claims 1 to 6, wherein said monomer Ml is methyl methacrylate.

8. The composition according to any one of claims 1 to 7 , wherein said monomer M2 is chosen from 2-ethylhexyl acrylate, lauryl methacrylate, poly(propyleneglycol) methacrylate, N-butyl methacrylate, isononyl acrylate, and any combination thereof.

9. The composition according to any one of claims 1 to 8, wherein said (meth)acrylate-terminated polymer is:- a (meth)acrylate-terminated polyurethane,- a copolymer of methyl methacrylate and a C2-C22 alkyl (meth)acrylate, preferably N-butyl methacrylate, or- a mixture thereof.

10. The composition according to any one of claims 1 to 9, wherein said (meth)acrylate-terminated polymer is a (meth)acrylate-terminated polyurethane, optionally in mixture with a copolymer of methyl methacrylate and a C2-C22 alkyl (meth)acrylate, which is preferably N-butyl methacrylate.

11. The composition according to claim 9 or 10, wherein said (meth)acrylate-terminated polyurethane is formed from a polyol, a polyisocyanate and a (meth)acrylate comprising at least one NCO-reactive group.

12. The composition according to claim 11, wherein:- said polyol is a polyether polyol having a OH-functionality higher than 2, and preferably lower than 3; - said polyisocyanate is a diisocyanate, preferably chosen from diphenylmethane-4,4'-diisocyanate, diphenylmethane-2, 2' -diisocyanate, diphenylmethane-2,4'-diisocyanate, and any mixture thereof; and - said (meth)acrylate comprising at least one NCO-reactive group is a (meth)acrylate comprising at least one group chosen from hydroxy group, mercapto group, primary amino group, secondary amino group, carboxy group, and amido group, preferably is 2-hydroxypropyl methacrylate.

13. The composition according to any one of claims 1 to 12, wherein the weight content of monomer Ml is from 3 to 20 %, preferably from 5 to 15 %, more preferably from 5 to 10 %, based on the total weight of the composition.

14. The composition according to any one of claims 1 to 13, wherein the weight content of monomer M2 is from 3 to 20 %, preferably from 4 to 15 %, more preferably from 4 to 10 %, based on the total weight of the composition.

15. The composition according to any one of claims 1 to 14, wherein the weight content of (meth)acrylate-terminated polymer is from 1 to 10 %, preferably from 2 to 7 %, more preferably from 3 to 5 %, based on the total weight of the composition.

16. A kit comprising:- a composition as defined in any one of claims 1 to 15, and- a radical initiator, such as benzoyl peroxide.

17. A method for repairing a roadway, bridge deck, or railway, comprising the steps of:(i) contacting a composition as defined in any one of claims 1 to 15 with a radical initiator, so as to obtain a mixture; and(ii) applying said mixture into or onto a roadway, bridge deck, or railway to be repaired, preferably into a micro-trench of a roadway to be repaired.

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