JPH059245A - Pavement material, structure prepared using same, and method for applying same - Google Patents

Abstract

PURPOSE:To provide a pavement material excellent in adhesion to asphalt, weatherability, wet-heat resistance, and low-temp. flexibility as well as in both high-and low-temp. applicability. CONSTITUTION:A pavement material which essentially contains a polymer component consisting of a polyester acrylate or an epoxy acrylate, at least one monomer selected from the group consisting of (meth)acrylates such as MMA, BHA, EHA, 2-HEMA, and n-BA, and an air-drying unsatd. resin component; a pavement structure prepd. using the material; and a method for applying the material.

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to asphalt adhesion,
Asphalt with excellent weather resistance, heat and humidity resistance, and low-temperature flexibility,
The present invention relates to concrete floors, road markings, pavement materials used for pavement and repair of roads, and pavement structures and construction methods using such materials that are excellent in low-temperature workability, high-temperature workability, and asphalt followability.

[0002]

2. Description of the Related Art Conventionally, coatings and marking materials for roads such as asphalt and concrete, floors, walls, etc., pavement materials for neat construction methods and mortar construction methods, etc., require thick coating and are not durable. Epoxy resins, MMA resins, unsaturated polyester resins, polyurethane resins and petroleum resins are used for demanding applications. Epoxy resins are used in many fields due to their high alkali resistance and mechanical strength, but they are generally poor in flexibility and therefore prone to cracking and are also poor in weather resistance. Polyester resins are used in factory floor coatings that take advantage of their acid resistance. Polyurethane resins have elasticity and flexibility and are widely used in light-duty floor coatings, but are inferior in chemical resistance and weather resistance. In addition, since these compositions take a long time to harden, they have poor application productivity.

[0003] On the other hand, hot-melt types such as petroleum resins and rosin resins are commonly used as marking materials for marking lines on asphalt road surfaces. The paint type has a thin coating thickness and is not very durable. On the other hand, the thick-film hot-melt type also lacks flexibility and is prone to cracking and is inferior in abrasion resistance. In particular, the wear on roads with heavy traffic, or on roads in cold winters due to spiked tires, tires with chains, etc., is remarkable, and the durability is extremely short.

[0004] JP-B-1-36508 proposes a (meth)acrylic acid ester composition as a material for compensating for the above drawbacks of road paving materials, floor and wall paints, and road marking materials. This composition is prepared by adding and mixing fillers such as aggregates to resin components such as polymers/monomers, plasticizers, paraffin waxes and curing agents, and applying appropriate tools such as trowels and rollers and coating machines. It is used for coating.

[0005] This composition is excellent in weather resistance and chemical resistance,
It provides a coating layer excellent in durability by having moderate strength and flexibility. In addition, it has good curability at low temperature and excellent construction productivity.

[0006]

However, the above has the following drawbacks. (1) If the resin/aggregate mixture ratio is more than 1/3, the amount of air (oxygen) involved increases, resulting in poor curing. In addition, when the outside air temperature rises in summer, the mixed paraffin wax melts and the surface hardens poorly, resulting in a sticky phenomenon. This is due to air (oxygen) curing failure of the (meth)acrylic acid ester resin composition. (2) When applied on the asphalt pavement material, the monomer causes a cutback phenomenon in which the asphalt pavement surface is dissolved.
Adhesive strength is significantly weakened. (3) When the acrylic syrup resin aggregate-mixed mortar composition is applied to the asphalt pavement material, the asphalt pavement material breaks when the asphalt shrinks and deforms due to temperature changes. The reason for this is that the acrylic resin pavement material layer cannot follow the asphalt pavement material.

[0007] That is, it occurs due to the difference in rigidity and strength between the asphalt pavement material and the acrylic resin pavement material layer resin. Especially in summer. (4) In the non-slip neat construction method in which a high-hardness aggregate such as silica sand or emery is sprinkled on the acrylic syrup resin, the adhesion between the resin and the aggregate is small. This is presumed to be due to the effect of the wax added to prevent curing failure due to air (oxygen).

[0008] An object of the present invention is not to cause curing failure,
Pavement material with good adhesion to substrates such as asphalt pavement material, weather resistance, heat and humidity resistance, low-temperature flexibility, and durability. To provide an excellent pavement structure and pavement construction method.

[0009]

Means for Solving the Problems As a result of intensive research conducted by the present inventors in order to solve the above-mentioned problems, the present inventors have found that a pavement material composed of a vinyl ester resin and a specific monomer has good low-temperature curing properties, weather resistance, and heat and humidity resistance. The inventors have found that the pavement material is excellent, does not cause curing failure, has good adhesiveness to substrates such as asphalt, and is excellent in durability, and has completed the present invention.

That is, the present invention comprises a resin composition comprising (a) a vinyl ester resin and (b) a mixture of at least one polymerizable unsaturated monomer having a (meth)acrylate group. Preferably, the vinyl ester resin of component (a) is an epoxy acrylate having a (meth)acrylate group at the molecular end and/or a polyester acrylate having a (meth)acrylate group at the molecular end, preferably has an average glass transition temperature (Tg) of -10°C to 99°C when the mixture of polymerizable unsaturated monomers (b) becomes a homopolymer
and a pavement structure using the same, and a construction method.

(Structure) The vinyl ester resin (a) of the present invention is preferably a saturated or unsaturated polyester (meth)acrylate obtained by addition reaction of a terminal carboxyl group of a saturated or unsaturated polyester and an unsaturated glycidyl compound. and the end of the epoxy skeleton (epoxy resin) with an α,β-unsaturated dibasic acid in an equivalent ratio of 1
Epoxy acrylates obtained by reacting pair 2, either singly or in combination, may be mentioned.

A polyester (meth)acrylate resin is a mixed solution of a saturated or unsaturated polyester containing at least one (meth)acrylic acid ester group in one molecule or a polymerizable unsaturated monomer thereof.
This polyester is obtained by an ester reaction between a glycol component, a triol component and a dibasic acid or tribasic acid component. If necessary, a monoepoxide compound, an epoxy compound and an isocyanate compound may be used together.

Glycols for polyester include, for example, ethylene glycol, propylene glycol, butylene glycol, neopentyl glycol, hexylene glycol, dimethylolcyclohexane, 2,4,4-
Alkylene glycols typified by trimethyl-1,3-pentanediol; Polyalkylene glycols typified by diethylene glycol, polyethylene glycol, dipropylene glycol, polypropylene glycol, polybutylene glycol; bisphenol A, bisphenol F, bisphenol S , an addition reaction product of a dihydric phenol such as titrabrombisphenol A and an alkylene oxide such as ethylene oxide or propylene oxide.

Triols include glycerin, trimethylolpropane, trimethylolethane, 1,2,6
- hexanetriol and the like. Tetraol units include pentaerythritol, diglycerol, 1,
2,3,4-butanetetriol and the like.

Dibasic acids (anhydrides) include o-phthalic acid, tetrahydrophthalic anhydride, hexahydrophthalic anhydride, tetrachlorophthalic acid, tetrabromophthalic acid, malonic acid, succinic acid, adipic acid and azelaic acid. ,
1,1,2-dodecanoic acid, maleic acid, fumaric acid, itaconic acid, hymittaic acid, hettic acid, and the like. -methyl-1,
Examples include 2,3,6-hexahydrophthalic acid, and tetrabasic acid units include pyromellitic acid and butanetetracarboxylic acid.

Monoepoxide units include ethylene oxide, propylene oxide, epichlorohydrin, styrene oxide, phenyldalicidyl ether and the like.

As the epoxy compound, a so-called epoxy resin can be suitably used. Epoxy resins described on pages 19-48.

As the isocyanate compound unit, polyvalent isocyanate compounds known in the polyurethane industry can be suitably used. Published by Keiji Iwata) pp. 46, pp. 175-1
It is a polyvalent isocyanate compound described on page 78.

[0019] The above resin can be produced by an esterification reaction of dihydric, trihydric or tetrahydric glycol with acrylic acid and/or methacrylic acid and polybasic acid,
Alternatively, there is a production method by esterifying a compound having a (meth)acrylic group or a hydroxyl group with a polybasic acid.

The unsaturated polyester is produced by polycondensation of an α,β-unsaturated dibasic acid or an acid anhydride thereof, a saturated aromatic dibasic acid or an acid anhydride thereof, and a glycol, and optionally an acid component. Examples include those produced in combination with an aliphatic or aliphatic saturated dibasic acid.

Examples of the α,β-unsaturated dibasic acid or its acid anhydride include maleic acid, maleic anhydride,
fumaric acid, itaconic acid, citraconic acid, chlormaleic acid and their esters;

Aromatic saturated dibasic acids or acid anhydrides thereof include phthalic acid, phthalic anhydride, isophthalic acid, terephthalic acid, nitrophthalic acid, tetrahydrophthalic anhydride,
endomethylenetetrahydrophthalic anhydride, halogenated phthalic anhydride and their esters, and aliphatic or alicyclic saturated dibasic acids such as oxalic acid, malonic acid, succinic acid, adipic acid, sebacic acid and azelaic acid. , glutaric acid, hexahydrophthalic anhydride, esters thereof, and the like, which are used alone or in combination.

Glycols include ester glycol, propylene glycol, diethylene glycol, dipropylene glycol, 1,3-butanediol, 1,
4-butanediol, 2-methylpropane-1,3-diol, neopentyl glycol, triethylene glycol, tetraethylene glycol, 1,5-pentanediol, 1,6-hexanediol, bisphenol A, hydrogenated bisphenol A, Ethylene glycol carbonate, 2,2-di-(4-hydroxypropoxydiphenyl)propane and the like can be mentioned and used alone or in combination. In addition, adducts such as ethylene oxide and propylene oxide can also be used. again,
Polycondensates such as polyethylene terephthalate can also be used as part of the glycols and acid component.

The unsaturated glycidyl compounds include glycidyl esters of unsaturated monobasic acids such as acrylic acid and methacrylic acid, such as glycidyl acrylate and glycidyl methacrylate. Glycidyl acrylate is preferable as the unsaturated glycidyl compound. The number average molecular weight of such unsaturated polyester acrylates is
preferably 1500 to 3000, particularly preferably 180
0-2800.

If the molecular weight is less than 1,500, the resulting cured product tends to be tacky or have reduced strength properties. On the other hand, if it is larger than 3000, the curing time becomes long and the productivity deteriorates.

The epoxy acrylate resin of the present invention is
A bisphenol type epoxy resin alone or a mixed resin of a bisphenol type epoxy and a novolac type epoxy resin, the average epoxy equivalent of which is preferably in the range of 150 to 450, and an unsaturated monobasic acid It is an epoxy vinyl ester obtained by reacting in the presence of an esterification catalyst.

[0027] As a typical example of the bisphenol type epoxy resin, glycidyl having two or more epoxy groups in one molecule substantially obtained by reacting epichlorohydrin with bisphenol A or bisphenol F. Ether-type epoxy resins, dimethylglycidyl ether-type epoxy resins obtained by reacting methyl epichlorohydrin with bisphenol A or bisphenol F, epoxy resins obtained from alkylene oxide adducts of bisphenol A and epichlorohydrin or metal epichlorohydrin, and the like. . Typical examples of the novolac type epoxy resins include epoxy resins obtained by reacting phenol novolak or cresol novolac with epichlorohydrin or methyl epichlorohydrin.

Typical unsaturated monobasic acids include acrylic acid, methacrylic acid, cinnamic acid, crotonic acid,
Monomethyl maleate, monopropyl maleate, monobutene maleate, sorbic acid or mono(2-ethylhexyl) maleate. These unsaturated-basic acids may be used alone or in combination of two or more.

[0029] The reaction between the epoxy resin and the unsaturated-basic acid is preferably carried out at 60 to 140°C, particularly preferably at 80°C.
It is carried out with an esterification catalyst at a temperature of ~120°C.

Examples of esterification catalysts include triethylamine, N,N-dimethylbenzylamine, N,N
- tertiary amones such as dimethylaniline or diazabicyclooctane; or known catalysts such as diethylamine hydrochloride can be used as they are.

The epoxy acrylate preferably has a number average molecular weight of 900 to 2500, particularly preferably 1
300-2200. If the molecular weight is less than 900, the resulting cured product will be tacky and the strength properties will be reduced. On the other hand, if it is larger than 2500, the curing time becomes long and the productivity deteriorates.

The unsaturated monomer (ii) of the present invention includes unsaturated monomers or unsaturated oligomers capable of cross-linking with the vinyl ester resin (ii), and monomers or oligomers containing acryloyl groups are particularly preferred. Yes, and (meth)acrylate monomers are preferred. When a monomer containing no acryloyl group is used and the amount thereof is large, the copolymerization property with the vinyl ester resin deteriorates and the curing time becomes long.

Specific examples of these unsaturated monomers containing acryloyl groups include methyl acrylate, ethyl acrylate, n-butyl acrylate, iso-butyl acrylate, t-butyl acrylate, acrylate- 2-
Ethylhexyl, n-octyl acrylate, decyl acrylate, 2-hydroxyethyl acrylate, 2-hydroxypropyl acrylate, β-ethoxyethyl acrylate, 2-cyanoethyl acrylate, cyclohexyl acrylate, diethylaminoethyl acrylate, methacryl Methyl acid, ethyl methacrylate, butyl methacrylate, hexyl methacrylate, decyl methacrylate, lauryl methacrylate, stearyl methacrylate, 2-hydroxyethyl methacrylate, 2-hydroxypropyl methacrylate, phenyl Carbitol acrylate, noniphenyl carbitol acrylate, noniphenoxypropyl acrylate, N-vinylpyrrolidone, polycaprolactone acrylate, acryloyloxyethyl phthalate, acryloyloxysuccinate, and the like.

Furthermore, derivatives of dicyclopentanediene, silycyclodecane and triazine, such as dicyclopentenyl acrylate, which improve the surface drying property of the resin cured product,
dicyclopentenyloxyethyl acrylate, tricyclodecanyl acrylate, tricyclodecanyl methacrylate, tris(2-hydroxyethyl)isocyanurate and the like. Of course, other vinyl monomers may be used in combination, although the copolymerizability during the cross-linking reaction is slightly inferior. For example, styrene, vinyl acetate, vinyl toluene, α-methylstyrene, diallyl phthalate, diallyl isophthalate, triallyl isocyanurate,
Allyl monomers such as diallyltetrapromphthalate; acrylonitrile, glycidyl methacrylate, n
-methylolacrylamide-butyl ether, n-methylolacrylamide, acrylamide, and other hard monomers.

In the present invention, unsaturated alcohols and polyfunctional unsaturated monomers may be used in combination. The unsaturated alcohol has an acryloyl group and a hydroxyl group, and specific examples thereof include 2-hydroxyethyl methacrylate, hydroxypropyl methacrylate, 2-hydroxyethyl acrylate and hydroxypropyl acrylate.
It is used when using the composition of the present invention for those using asphalt.

The polyfunctional unsaturated monomer of the present invention is a compound having at least two polymerizable double bonds in one molecule, and has properties such as abrasion resistance, scratch resistance, sliding resistance, and abrasion resistance on the surface of the cured product.
It is preferably used for the purpose of improving chemical resistance and the like. Preferred are polyfunctional (meth)acrylic acid ester monomers such as ethylene glycol di(meth)acrylate, 1,2-propylene glycol di(meth)acrylate, 1,3-butylene glycol di(meth)acrylate, 1 , alkanediol di(meth)acrylates such as 6-hexanediol di(meth)acrylate, dipropylene glycol di(meth)acrylate, triethylene glycol (meth)acrylate, tetraethylene glycol di(meth)acrylate, polyethylene glycol Polyoxyalkylene-glycol di(meth)acrylate such as (meth)acrylate, divinylbenzene, diallyl phthalate, triallyl phthalate, triallyl cyanurate, triallyl isocyanurate, allyl (meth) acrylate, diallyl fumarate, and the like. , these may be used alone or in combination of two or more.

[0037] The average glass transition temperature (Tg) of the polymerizable unsaturated monomer (b) of the present invention is the Tg when the monomer becomes a homopolymer, and in a mixture, it is calculated from the composition ratio. and preferably -10 to 105°C
In order to improve the tear strength in particular, -1
0 to 80°C is preferred. If the transition point temperature is -10°C or lower, the surface of the cured resin remains tacky, and the tensile strength and the like are lowered. Also, if the temperature exceeds 105°C, the amount of distortion during curing of the cured product increases, and when used in the state of a coating film,
It leads to peeling and tearing from the substrate. Also, the elongation becomes too small, resulting in poor crack resistance.

The vinyl ester resin of (a) of the present invention/
(b) The preferred proportion of the unsaturated monomer mixture is 2/8
~8/2. If (a) is less than 2, the curability of the cured resin is poor. If it is greater than 8, the viscosity of the composition becomes high and handling becomes difficult.

In the present invention, an air-drying polymerizable unsaturated monomer may be used in combination. Examples include acrylic acid derivatives such as dicyclopentadiene and tricyclodecane, and dicyclopentenyloxyethyl acrylate and tricyclo[5-2-1-02,6] denical acrylate. Diluents and the like can also be used.

The air-drying polymerizable monomer-crosslinked unsaturated group-containing polymer used in the present invention is obtained, for example, by introducing an air-drying component into a saturated polyester, an unsaturated polyester, or the like. . When used in combination, the anaerobic properties are very low, so that they can be completely cured in the presence of oxygen (air) without additives such as paraffin wax. That is, in the form of a coating film, there is no surface stickiness or the like, and in the case of mortar mixed with aggregates, even if the mixing ratio of aggregates is freely changed, the inside can be completely hardened, which is preferable.

[0041] Methods for introducing an air-drying component as an essential component into the vinyl ester resin as the polymer to be crosslinked include the following. A compound containing an allyl ether group represented by -0- _CH2 -CH= _CH2 is used in combination with the glycol component. A compound containing a cyclic aliphatic unsaturated polybasic acid and a derivative thereof is used in combination with the acid component. A compound containing dicyclopentadiene is used in combination. Use a combination of drying oil and epoxy reactive diluent.

As the allyl ether group-containing compound among these (1) to (3), any of the known compounds can be used. allyl ether, polyethylene glycol monoallyl ether, propylene glycol monoallyl ether, dipropylene glycol monoallyl ether, tripropylene glycol monoallyl ether, polypropylene glycol monoallyl ether, 1,2-butylene glycol monoallyl ether, 1,3-butylene Glycol Monoallyl Ether, Hexylene Glycol Monoallyl Ether, Octylene Glycol Monoallyl Ether, Trimethylolpropane Monoallyl Ether, Trimethylolpropane Diallyl Ether, Glycerin Monoallyl Ether,
Allyl ether compounds of polyhydric alcohols such as glycerin diallyl ether, pentaerythritol monoallyl ether and pentaerythritol triallyl ether; allyl ether compounds having an oxirane ring such as allyl glycidyl ether;

Other glycol components used in combination include ethylene glycol, propylene glycol,
diethylene glycol, dipropylene glycol, 1,
3-butanediol, 1,4-butanediol, 2-methylpropane-1,3-diol, neopentyl glycol, triethylene glycol, tetraethylene glycol, 1,5-pentanediol, 1,6-hexanediol, bisphenol A, hydrogenated bisphenol A,
ethylene glycol carbonate, 2,2-di(-4-
hydroxypropoxydiphenyl)propane and the like, which are used alone or in combination. Other oxides such as ethylene oxide and propylene oxide can also be used. Polycondensates such as polyethylene terephthalate can also be used as part of the glycols and the acid component.

[0044] Compounds comprising the above-mentioned cyclic aliphatic unsaturated polybasic acids and derivatives thereof include tetrahydrophthalic anhydride, endomethylenetetrahydrophthalic anhydride, methyltetrahydrophthalic anhydride, and α-terhinene-maleic anhydride adducts. , rosin, ester gum, etc. The α,β-unsaturated dibasic acids or their acid anhydrides used alone or in combination with these include maleic acid, maleic anhydride, fumaric acid, itaconic acid, citraconic acid, chlormaleic acid and these. Examples of aromatic saturated dibasic acids or acid anhydrides thereof include phthalic acid, phthalic anhydride, isophthalic acid, terephthalic acid, nitrophthalic acid, halogenated phthalic anhydride and their esters. Alternatively, alicyclic saturated dibasic acids include oxalic acid, malonic acid, succinic acid, adipic acid, sebacic acid, aceraic acid, glutaric acid, hexahydna phthalic anhydride and their esters.
Each is used alone or in combination.

Resins obtained by reacting terminal carboxyl groups of unsaturated alkyd resins synthesized from glycol and acid with reactive monomers having glycidyl groups can also be used. Representative examples of reactive monomers having a glycidyl group include glycidyl acrylate, glycidime methacrylate, and the like.

A β-PMAA unit compound can also be used, which refers to cis-3-methyl-4-cyclohexene-cis-1,2-dicarboxylic acid and its anhydride (abbreviated as βPMAA). and these are trans-
It is an adduct of piperylene and maleic anhydride, or an acid anhydride group in this adduct is ring-opened.

Typical compounds containing dicyclopentanediene include hydroxylated dicyclopentanediene.

Drying oils include linseed oil, soybean oil, cottonseed oil, peanut oil, coconut oil, and reaction products of these fatty oils with polyhydric alcohols such as glycerin.

Epoxy-reactive diluents include monoepoxy compounds, polyepoxy compounds, and the like. The former includes allyl glycidyl ether, n-butyl glycidyl ether, phenyl glycidyl ether, glycidyl methacrylate, Cardura E, etc. The latter includes Unox 206, Epicort 812, DGE, B
There are DO etc.

[0050] The compositions of the present invention also preferably contain a curing agent, which includes an organic peroxide. Specifically, known ones such as diacyl peroxide, peroxyester, hydroperoxide, dialkyl peroxide, ketone peroxide, peroxyketal, alkyl perester, and percarbonate are used. , kneading conditions, curing temperature and the like. The amount to be added is a commonly used amount, preferably 01 per 100 parts by weight of the resin composition.
~4 parts by weight. The above curing agents may be used in combination.

The curing accelerator, that is, the substance that decomposes the organic peroxide of the curing agent by a redox reaction and facilitates the generation of active radicals is, for example, metals such as cobalt, vanadium, and manganese. Soaps, third
There are class amines, quaternary ammonium salts, mercaptans and the like.

A thermoplastic resin can be added to the resin composition of the present invention for the purpose of improving the air curability of the resin cured product and for the purpose of reducing cure shrinkage. Specific examples of thermoplastic resins include lower alkyl esters of acrylic acid or methacrylic acid such as methyl methacrylate, ethal methacrylate, butyl methacrylate, methyl acrylate and ethyl acrylate, monomers such as styrene, vinyl chloride and vinyl acetate. Polymers or copolymers, at least one of the above vinyl monomers, lauryl methacrylate, isovinyl methacrylate, acrylamide, methacrylamide, hydroxyalkyl acrylate or methacrylate, acrylonitrile, methacrylonitrile, acrylic acid, methacrylic acid, cetyl In addition to copolymers of at least one polymer composed of stearyl methacrylate, cellulose acetate butyrate and cellulose acetate propionate, polyethylene, polypropylene, saturated polyesters and the like can be mentioned. The amount added is preferably 0 to 50 parts by weight, particularly preferably 0 to 35 parts by weight, per 100 parts by weight of the resin composition.

In the present invention, fillers, aggregates, pigments, coloring agents such as dyes, etc. may be added in addition to the above additives. Especially fillers are preferably added. In order to use the composition of the present invention as a paint-like marking material, fillers, aggregates, pigments, colorants, dyes, etc. are added in addition to the above additives.

The paving material of the present invention is generally used as a mixed material by mixing it with aggregates or other fillers, or it is used as a neat construction method in which aggregates are sprinkled over resin.

The aggregate used in the present invention refers to silica-based sand, gravel, crushed stone and similar materials. There are two types of grain size: fine grains that pass 85% by weight through a 5 mm sieve and coarse grains that retain more than 85% by weight through a 5 mm sieve. and coarse-grained mixtures are preferred.

In the case of the neat construction method, emery and silica sand having a high hardness, which are excellent in abrasion resistance, are preferable.

Aggregates include natural aggregates and artificial aggregates. The former includes river gravel, river sand, mountain gravel, mountain sand, sea gravel, and sea sand. The latter is made by processing rocks, clays, industrial by-products, etc. as raw materials, and includes crushed stone/crushed sand, silica sand, slag crushed stone/crushed sand, artificial light weight, and the like. Further, a fine powder used as a filler may be used in combination with a part of the aggregate.

Fillers include calcium carbonate powder, clay, alumina powder, silica powder, talc, barium sulfate, silica powder, glass powder, glass beads, mica, aluminum hydroxide, cellulose thread, silica sand, river sand, Kansui stone, Well-known materials such as marble scraps, crushed stone, FRP powder, etc.
Among them, silica powder, calcium carbonate, glass powder and the like are preferable.

Various fibers can be mixed into the present invention to improve strength, prevent cracking, impart electrical conductivity, and impart other functions. For example, glass fiber, amide, aramid, vinylon, polyester, organic fiber such as phenol, carbon fiber, metal fiber, ceramic fiber, or a combination thereof is used. Glass fibers and organic fibers are preferable from the viewpoint of workability and economy. In addition, the form of fiber includes plain weave, satin weave, non-woven fabric, mat-like, etc., but mat-like is preferable from the construction method and thickness retention.

Claims (7)

[Claims] [Claim 1] (a) a vinyl ester resin, (b) at least one having a (meth)acrylate group
A paving material comprising a resin composition comprising a mixture of one or more polymerizable unsaturated monomers. 2. A pavement material according to claim 1, wherein the vinyl ester resin of component (a) is an epoxy acrylate having a (meth)acrylate group at the molecular end and/or a polyester acrylate having a (meth)acrylate group at the molecular end. (3) The polyester acrylate has (meth)acrylate groups at both ends of a molecule obtained by reacting a saturated/or unsaturated polyester having carboxyl groups at both ends with an unsaturated glycidyl compound. Item 2 paving material. 4. A mixture (b) of polymerizable unsaturated monomers,
Average glass transition temperature (Tg) when homopolymer is formed
2. Paving material according to claim 1, characterized in that the temperature ranges from -10°C to 99°C. (5) A polymerizable monomer cross-linked unsaturated group-containing polymer having air-drying properties.
paving material. 6. A pavement structure using the pavement material of claim 1. 7. A construction method characterized by using the pavement material of claim 1.