KR102288279B1 - Polymer concrete mortar composition for bridge deck thin facing pavement comprising methylmethacrylate resin and garnet fine aggregate and the construction method bridge deck thin facing pavement thereof - Google Patents

Abstract

The present invention relates to a polymer concrete mortar composition for bridge deck thin layer pavement comprising a methyl methacrylate (MMA)-based acrylic resin and garnet fine aggregate and a construction method for bridge deck thin layer pavement using the same, and more specifically, to a polymer concrete mortar composition for bridge deck thin layer pavement comprising a methyl methacrylate (MMA)-based acrylic resin and garnet fine aggregate and a construction method for bridge deck thin layer pavement using the same, wherein the polymer concrete mortar composition includes: an organic binder; and an inorganic binder. The organic binder includes: a first subject (A) which is an acrylic copolymer resin comprising water, methyl methacrylate (MMA), 2-ethylhexyl acrylate (2-EHAM) and methacrylic acid (MAAC), a reactive emulsifier, a copolymerization initiator, an alkalizing agent, and a peroxide curing agent; a second subject (B) which is a reinforcing resin containing a unsaturated polyester resin and a peroxide curing agent; and a silane-based coupling agent which is a crosslinking agent to increase chemical adhesion of polymer concrete. The inorganic binder contains garnet fine aggregate with a particle size of 0.05 to 2 mm, which is recovered and recycled from garnet sludge for abrasive or garnet sludge for waterjet cutting, and a calcium carbonate filler. The polymer concrete mortar composition for bridge deck thin layer pavement according to the present invention has the effects of: making a thickness of bridge deck pavement thin so as to reduce a dead weight of the bridge deck pavement; enabling construction or repairing of the bridge deck pavement to be easily performed so as to reduce the construction costs and construction period; and exhibiting excellent waterproof performance even without a waterproof layer, such that durability of a bridge can be improved.

Description

POLYMER CONCRETE MORTAR COMPOSITION FOR BRIDGE DECK THIN FACING PAVEMENT COMPRISING METHYLMETHACRYLATE RESIN AND GARNET FACING PAVEMENT COMPOSITION FOR BRIDGE DECK THIN FACING PAVEMENT COMPRISING METHYLMETHACRYLATE RESIN AND GARNET THE CONSTRUCTION METHOD BRIDGE DECK THIN FACING PAVEMENT THEREOF}

The present invention relates to a polymer concrete mortar composition for thin layer pavement for bridges comprising a methyl methacrylate (MMA)-based acrylic resin and fine garnet aggregate, and a thin layer paving construction method for bridges using the same, and more particularly, to water, methyl methacrylate (MMA) ), 2-ethylhexyl acrylate (2-EHAM) and methacrylic acid (MAAC), a reactive emulsifier, a copolymerization initiator, an acrylic copolymer resin comprising an alkalizing agent and a peroxide curing agent, the first subject (A), An organic binder comprising a second subject (B), which is a reinforcing resin containing an unsaturated polyester resin and a peroxide curing agent, and a silane-based coupling agent (C), which is a crosslinking agent for increasing the chemical adhesion of polymer concrete, and ; Garnet sludge for abrasives or garnet sludge for waterjet cutting is recovered and recycled from fine garnet aggregate with a particle size of 0.05 to 2 mm and an inorganic binder containing calcium carbonate filler; including methyl methacrylate (MMA)-based acrylic resin and garnet fine aggregate It relates to a polymer concrete mortar composition for thin-layer pavement for bridges and a construction method for thin-layer pavement for bridges using the same.

In general, a bridge is a generic term for an elevated structure erected so that it can pass through the upper part of a river, coast, road, etc., and the pavement layer is formed on the surface of such a bridge by paving the bridge so that vehicles can pass smoothly.

In particular, the bridge pavement is a part that directly transmits the traffic load. It must have strength and crack resistance suitable for repeated traffic loads, and it is required to have waterproof performance because it is exposed to moisture such as rainwater. It is required to have low chloride ion permeability in order to prevent corrosion of the reinforcing bars.

However, bridge pavement is damaged by plastic deformation and impact due to heavy vehicle traffic, climate change according to regional characteristics, effects on freezing and thawing, effects of deflection vibration in the case of long bridges, and penetration of rainwater and chloride ions. Damage is likely to occur due to corrosion of reinforcing bars and accelerated damage to the concrete of the bridge deck.

In this way, when the pavement is damaged, the damaged part must be removed and repaired. In particular, in the case of bridge repair, when the bridge is closed for a long period of time, traffic jams occur. There is a need.

In addition, the bonding with the existing pavement should be excellent, and long-term strength and durability should be excellent, so that the maintenance effect should be maintained for a long time.

However, the existing bridge repair method mainly uses asphalt overlay and polymer concrete thin-layer pavement repair method. there was a side

In order to solve these problems, recently, it is applied to areas where corrosion or erosion occurs a lot on the bridge deck. Usually, it is a super-velocity polymer concrete with SBR (Styrene Butadiene Rubber) latex added during concrete mixing. Latex-modified concrete (LMC) : Latex Modified Concrete), acrylic resin polymer concrete, etc. have been developed and used.

Looking at the prior art, 200 parts by weight to 300 parts by weight of fine aggregate, 170 parts by weight of coarse aggregate to 100 parts by weight of Rapid Set Cement in Korean Patent Registration No. 10-0403979 (registration date October 20, 2003) 230 parts by weight, 90 parts by weight to 110 parts by weight of water, 002 parts by weight to 005 parts by weight of a retarder, 35 parts by weight to 60 parts by weight of a latex resin is placed in a forced mixer and sufficiently rubbed, and an antifoaming agent is added to the latex resin 100 After adding 2 to 15 parts by weight based on parts by weight, after rubbing again for about 1 minute, exposed to air for 1 minute to remove the generated air, and rubbing again for about 30 seconds. A method for preparing a composition and a technique for using it for emergency repair of bridge pavement are presented.

In addition, in Korea Patent No. 10-1465446 (registration date: November 20, 2014), low-heat cement with excellent chloride ion permeation resistance and fine sulfur powder are added to improve the chloride resistance and chemical resistance of ultra-fast concrete, cement admixture. It relates to a flame-resistant super-velocity concrete composition that improves cement mixability, tensile strength, adhesion, durability, and workability by adding a polymer for use in cement, and increases resistance to cracking by adding a crack healing material, and a method for repairing a bridge or pavement using the same. To provide a flame-resistant super-velocity concrete composition comprising 10 to 30% by weight of a flame-resistant binder, 23 to 55% by weight of fine aggregate, 23 to 55% by weight of coarse aggregate, 1 to 15% by weight of polymer for cement admixture, and 1 to 10% by weight of water According to its characteristics, it improves the chloride resistance and chemical resistance of ultra-velocity concrete, improves mixability, tensile strength, adhesion, durability, workability, and increases resistance to cracking. A salt-resistant super-fast concrete composition having the effect of improving durability by improving the structure of a bridge and a bridge and a method for repairing a bridge or pavement using the same are known.

In addition, in Korea Patent No. 10-1665486 (registration date October 06, 2016) in a conventional bridge paving method, 1) sodium tetrapyrophosphate, sodium monododecyl sulphate (sodium monododecyl sulphate) and sodium Emulsifier and reaction initiator composition including sodium hydroxide (A), 2) phenylethene, ethyl-propenoate, butyl-propenoate (butyl pro-2) -enoate), 2-propenenitrile (2-propenenitrile) and dimethyl ammonoethyl methyl acrylate (dimehtylamonoethylmethacrylate) or pro-2-enoic acid (pro-2-enonic acid) primary and secondary monomer compositions containing (B), and 3) a tertiary-butyl hydro peroxide (tertiary-butyl hydro peroxide) and sodium hydroxymethane sulfinate (C) terminating composition comprising sodium hydroxymethane sulfinate; Multi for mortar and concrete containing; A bridge paving method is known, which is characterized by using mixed concrete modified by polymer synthetic latex.

In addition, in Korean Patent Registration No. 10-1710300 (registration date February 20, 2017), (a) preparing a mortar composition for repairing a bridge pavement, the mortar composition for repairing a bridge pavement is (1) 50 to 100 weight of cement parts, 0.5 to 10 parts by weight of clinker, 0.5 to 10 parts by weight of plaster, 0.5 to 10 parts by weight of alpha hemihydrate gypsum, 0.1 to 5 parts by weight of silica fume, 0.01 to 5 parts by weight of fly ash, 0.5 to 10 parts by weight of limestone, blast furnace 10 to 70% by weight of a first powder component comprising 1 to 20 parts by weight of slag, 0.01 to 10 parts by weight of calcinar slag, and 0.01 to 10 parts by weight of microsilica; and 2 to 7 parts by weight of a siliceous waterproofing agent, 5 to 15 parts by weight of a CSA-based expansion material, 0.05 to 0.2 parts by weight of a viscosity enhancer, 0.3 to 1.1 parts by weight of a fluidizing agent, 0.1 to 0.5 parts by weight of a curing accelerator, 0.1 to 0.4 parts by weight of a retarder and 100 parts by weight of a powder component comprising 30 to 90% by weight of a second powder component including 42 to 64 parts by weight of silica sand; (2) One or more types of powder or liquid rubber selected from EVA (Ethylene-vinyl acetate) resin, NR (Natural rubber) resin, NBR (Natural rubber-Butadiene rubber) resin, and SBR (Styrene-Butadiene rubber) resin 1 to 20 parts by weight of a modified latex component obtained by mixing cement with ultra-velocity cement, carbon black, and fibers in a resin; (3) 1 to 7 parts by weight of methyl methacrylate, 5 to 20 parts by weight of styrene monomer, 1 to 10 parts by weight of normal butyl acrylate, 0.1 to 10 parts by weight of methyl acrylate, 0.1 to 10 parts by weight of isobornyl acrylate, 1 to 20 parts by weight of a liquid component comprising 0.05 to 5 parts by weight of an initiator and 0.05 to 5 parts by weight of an emulsifier; (4) 1-10 parts by weight of hydrophilic polyvinyl alcohol short fiber component; (5) 1-5 parts by weight of an additive component consisting of a mixture of a preservative, an anti-foaming agent, and a wetting agent; and (6) 10 to 50 parts by weight of water; a filler and aggregate are mixed with the bridge pavement repair agent comprising: 5 to 50 parts by weight of the bridge surface pavement repair agent, 10 to 40 parts by weight of the filler, and 20 to 70 weight of the aggregate Preparing a mortar composition for bridge pavement repair consisting of mixing parts; (b) Break the damaged part of the bridge pavement, but only partially crush the upper part of the reinforcement so that the internal reinforcement is not damaged, mark the installation location of the reinforcement on the upper surface of the bridge surface pavement, and perform the crushing operation while avoiding the marked point And, when the upper part of the reinforcement is crushed, using a waterjet device to spray the high pressure to cut the crushed part to crush the damaged part of the bridge surface pavement; (c) The crushed part is cut by high-pressure water spraying and foreign substances present on the cutting surface are removed, but cleaning and foreign substances are removed while moving in the longitudinal direction of the bridge using a vacuum suction vehicle, and the surface drying operation is performed simultaneously to do; (d) pouring the mortar composition for bridge pavement repair prepared in (a) on the cutting surface from which the foreign material is removed; and (e) curing the poured mortar composition for bridge pavement repair and finishing the surface; It is characterized in that the mixed mixture is calcined at 1000 to 1200° C. for 0.5 to 1 hour, and then pulverized to have an average particle size of 10 to 20 μm. Including, wherein the coating agent is an epoxy resin 10-50% by weight, polymethyl methacrylate resin 5-40% by weight, diluent 1-25% by weight, coagulant 0.1-15% by weight, inorganic filler 1-20% by weight, accelerator 0.1 To 100 parts by weight of the main ingredient obtained by mixing ~5% by weight, 0.05~20% by weight of an emulsifier, and 10~80% by weight of water, 1 to 20% by weight of a water-soluble oil, 1 to 10% by weight of an emulsifier, 5 to 20% by weight of an accelerator % and 50 to 90 wt% of water to prepare an aqueous solution, and 5 to 50 parts by weight of a curing agent component obtained by mixing 5 to 50 parts by weight of polyamide and 0.1 to 40 parts by weight of an amine compound based on 100 parts by weight of the obtained aqueous solution in a 5 to 50 weight ratio A bridge pavement repair method is known, characterized in that it uses a mixed epoxy coating agent.

In addition, Korea Patent No. 10-1825635 (registration date January 30, 2018) has 15w% to 19w% of super-fast cement, 0.5w% to 1w% of metakaolin, 1w% to 2w% of water reducing agent, 1w% of material separation preventing agent to 2w% of an inorganic binder; Alumina (Al2O3) 1w% to 2w%, titanium oxide (TiO2) 0.5w% to 1w%, silica (SiO2) 1w% to 3w%, calcium oxide (CaO) 1w% to 3w%, silicon carbide, Sic) 0.5w% to 1w%, boron nitride (Boron nitride, BN) 0.5w% to 1w% inorganic filler containing; A polymer resin composition comprising 4.5w% to 6.5w% of a polymer binder; A fiber composition comprising 0.5w% to 1w% of polypropylene fibers; And a road or bridge pavement composition comprising 65w% to 69w% of silica sand is known.

In addition, Korean Patent No. 10-1931321 (registration date December 14, 2018) discloses a part A comprising a dendritic MMA polymer having a methyl methacrylate structure and an unsaturated polyester structure; And it is mixed with the A part to form a water retaining material, and is made in the form of ceramic powder to harden within a set time after mixing, including calcium carbonate, micro silica, high-strength silica sand No. 6, high-strength silica sand No. 5, inorganic thickener and curing initiator. Including part B consisting of, wherein part A contains the MMA polymer mixed in 12 to 18 parts by weight, and the B part, the calcium carbonate mixed in 32 to 28 parts by weight, the micro silica mixed in 2 to 8 parts by weight, The high-strength silica sand No. 6 mixed in 32 to 38 parts by weight, the high-strength silica sand No. 5 mixed in 7 to 13 parts by weight, the inorganic thickener mixed in 01 to 05 parts by weight, and a curing initiator mixed in 03 to 09 parts by weight, The inorganic thickener includes bentonite powder, the curing initiator includes manganese peroxide or benzoyl peroxide, and the A part is colorless and transparent, and has a viscosity of 30 to 35 cps, of 106 ± 002 In the super-velocity bridge top plate repair material composition comprising a two-component liquid acrylic modified unsaturated polyester resin having a specific gravity and having a nonvolatile content of 44±2 parts by weight, the A part is in the form of a resin, and the B part is a ceramic powder Since it is made in the form of, the A part and the B part are separately accommodated, and after moving to the site where the bridge deck repair work is in progress, the repair material is prepared by mixing the A part and the B part at the site, and the super-velocity bridge top plate repair material composition Silver, which is characterized in that it satisfies the working conditions of a workable temperature of -20°C to +35°C, a humidity of less than 10%, a pot life of 10 to 15 minutes, and a curing time of 30 to 40 minutes (based on 20°C). A bridge deck repair material composition is known.

In addition, Korean Patent No. 10-1982186 (registration date, May 20, 2019) discloses a method for repairing a bridge pavement using a super-fast diameter modified mortar composition including a biopolymer, a repair target that removes foreign substances from the surface of the bridge surface and then cleans it surface cleaning step; A primer layer forming step of forming a primer layer on the cleaned surface to be repaired; A composition installation step of installing a super-fast diameter modified mortar composition including a biopolymer; Curing step of curing the ultra-fast diameter modified mortar composition including the biopolymer; Between the composition installation step and the curing step, a surface protection agent spraying step of spraying the surface protection agent; The primer layer applied in the primer layer forming step is a one-component or two-component type comprising at least one methacrylate resin, a polymerizable unsaturated monomer, and a curing agent among urethane methacrylate resin, epoxy methacrylate resin, or polyester methacrylate resin. comprising a liquid primer composition; The surface protecting agent includes at least one material selected from water-soluble polyurethane, styrene-butadiene latex, acrylic emulsion, ethylvinyl acetate, silane-based compound, and modified sodium silicate compound; The biopolymer is formed into a powdered hoesaengi hat through a powdering step; The powdering step is a hoesaeng hat collecting step, a hoesaeng hat washing step, a washed hoesaeng hat salinity measurement step, a hoesaeng hat drying step, a dried hoesaeng hat preserving step, What consists of a grinding step; The hoesaengi hat washing step is made in less than 0.1% of the salinity of the washing water; A method of repairing a bridge pavement using a modified mortar composition containing a biopolymer comprising a;

In addition, Korean Patent No. 10-2075365 (registration date, February 04, 2020) describes 100 to 500 parts by weight of aggregate, 1 to 20 parts by weight of water, 1 to 20 parts by weight of an acrylic latex binder, and 1 to 20 parts by weight of an acrylic latex binder based on 100 parts by weight of a cement binder. Naph fiber and polylactic acid fiber 5 to 7: contains 1 to 20 parts by weight of a fiber reinforcement mixed in a 3 to 5 weight ratio, the kenaf fiber has a fineness of 30 to 100 dtex, the fiber length is 1 to 10 cm, the surface A composition for paving a bridge is known, characterized in that it is coated with a coating solution containing polydopamine.

In addition, the present applicant filed a patent application, and the Korean Patent Registration No. 10-2105860 (registration date, April 23, 2020) has 15 to 20 parts by weight of blast furnace slag powder with respect to 100 parts by weight of cement per second; 5 to 20 parts by weight of fly ash; 5-10 parts by weight of an inorganic irritant prepared by mixing anhydrous sodium sulfate (Na2SO4) and anhydrous calcium sulfate (CaSO4) in the same weight ratio; 5 to 10 parts by weight of calcium sulfoaluminate (3CaO·3Al2O3·CaSO4); 3 to 5 parts by weight of dodecacalcium heptaaluminate (12CaO·7Al2O3); 30-50 parts by weight of water; An epoxy resin composition mixed with a polyamide curing agent and a main agent containing epichlorohydrine and bisphenol-A epoxy resin in a 1:1 weight ratio is used as an adhesive, waterproof, crack prevention, abrasion resistance, and weather resistance reinforcing agent 5 parts by weight; There is known a super-velocity concrete bridge pavement composition using blast furnace slag powder and fly ash, characterized in that it comprises.

In addition, the present applicant filed a patent application, and Korean Patent Registration No. 10-2105862 (registration date April 23, 2020) includes 100 parts by weight of cement per second; 200 to 250 parts by weight of ferronickel slag fine aggregate classified into a particle size of 12 to 25 mm; 5-20 parts by weight of a mixed thickener in which a cellulose-based thickener, an acrylic-based thickener, and a polyethylene oxide-based thickener are each mixed in the same weight ratio; 50 to 80 parts by weight of water; 10-20 parts by weight of calcium sulfoaluminate (3CaO·3Al2O3·CaSO4); 3 to 5 parts by weight of dodecacalcium heptaaluminate (12CaO·7Al2O3); An epoxy resin composition mixed with a polyamide curing agent and a main agent containing epichlorohydrine and bisphenol-A epoxy resin in a 1:1 weight ratio is used as an adhesive, waterproof, crack prevention, abrasion resistance, and weather resistance reinforcing agent 5 Part by weight; Concrete bridge pavement composition is known per second using classified ferronickel slag fine aggregate, characterized in that it comprises.

In addition, Korean Patent No. 10-2127329 (registration date, June 22, 2020) discloses that in the concrete composition for paving and repairing a bridge with an ultra-high speed, 100 parts by weight of Portland cement, 60 parts by weight to 80 parts by weight of cement with an ultra high speed, calcium sulfo An inorganic binder consisting of 3 parts by weight to 30 parts by weight of an aluminate-based expanding agent, 5 parts by weight to 20 parts by weight of a shrinkage reducing agent, 1 part by weight to 20 parts by weight of gypsum, and 10 parts by weight to 50 parts by weight of fine blast furnace slag powder, and an inorganic binder. With respect to 100 parts by weight, 100 parts by weight to 200 parts by weight of fine aggregate, 100 parts by weight to 200 parts by weight of coarse aggregate, 10 parts by weight to 50 parts by weight of water, and 5 parts by weight to 30 parts by weight of latex and 01 parts by weight of inorganic phase change material to Consisting of 5 parts by weight; 5 to 30 parts by weight of the latex contains 0.1 parts by weight of an organic phase change material consisting of a combination of any one or more of naphthalene, propylamide, acetamide, polyglycol, glycerol, cyanamide, ethylenediamine, and pentaerythricol. 5 parts by weight are separately mixed; A surface tension reducing agent is mixed with the latex, and the surface tension reducing agent is formed of glycol ether, ethoxypropoxylated alcohol and additives, and the surface tension reducing agent is 0.5 parts by weight to 5 to 30 parts by weight of latex to be mixed in 3 parts by weight; divided into 1 part by weight of the inorganic phase change material and 1 part by weight of the organic phase change material and mixed with an inorganic binder and latex, respectively; The surface tension reducing agent is 0.5 parts by weight to 3 parts by weight of latex is mixed separately, the surface tension reducing agent contained in the latex is formed of glycol ether, ethoxypropoxylated alcohol and additives, the surface tension reducing agent is 80 to Concrete compositions for bridging and repair are known, comprising: 90% by weight of glycol ether, 5 to 15% by weight of ethoxypropoxylated alcohol and less than 5% by weight of additives.

However, the conventional modified concrete or polymer concrete bridge surface paving material compositions are effective in super-fast hardness, cracking suppression effect, waterproofness, and improvement of adhesion performance, but a certain thickness of cement concrete or polymer concrete layer must be secured, so material cost increases, etc. There are economic problems such as increased cost or the need to peel off the bridge pavement of a certain thickness when repairing the bridge pavement. There were several problems such as

[Patent Document 001] Korean Patent Registration 10-0403979 (Registration Date: October 20, 2003) [Patent Document 002] Korean Patent Registration 10-1465446 (Registration Date: November 20, 2014) [Patent Document 003] Korean Patent Registration 10-1665486 (Registration Date: October 06, 2016) [Patent Document 004] Korea Registered Patent 10-1710300 (Registration Date: February 20, 2017) [Patent Document 005] Korean Patent 10-1825635 (Registration Date January 30, 2018) [Patent Document 006] Korean Patent Registration 10-1931321 (Registration Date December 14, 2018) [Patent Document 007] Korean Patent Registration 10-1982186 (Registration date May 20, 2019) [Patent Document 008] Korean Patent Registration 10-2075365 (Registration Date February 04, 2020) [Patent Document 009] Korean Patent 10-2105860 (Registration Date April 23, 2020) [Patent Document 010] Korean Patent 10-2105862 (Registration Date April 23, 2020) [Patent Document 011] Korean Patent No. 10-2127329 (Registration Date: June 22, 2020)

The present invention is to solve the above conventional problems, water, methyl methacrylate (MMA), 2-ethylhexyl acrylate (2-EHAM) and methacrylic acid (MAAC), a reactive emulsifier, a copolymerization initiator, The first subject (A), which is an acrylic copolymer resin containing an alkalizing agent and a peroxide curing agent, and a second subject (B), which is a reinforcing resin containing an unsaturated polyester resin and a peroxide curing agent, and the chemical composition of polymer concrete an organic binder comprising a silane-based coupling agent (C) which is a crosslinking agent for increasing adhesion; Garnet sludge for abrasives or garnet sludge for waterjet cutting is recovered and recycled from fine garnet aggregate with a particle size of 0.05 to 2 mm and an inorganic binder containing calcium carbonate filler; including methyl methacrylate (MMA)-based acrylic resin and garnet fine aggregate It is a task to solve to provide a polymer concrete mortar composition for thin layer pavement for bridges and a construction method for thin layer pavement for bridges using the same.

In order to solve the above problems, the present invention provides water, methyl methacrylate (MMA), 2-ethylhexyl acrylate (2-EHAM) and methacrylic acid (MAAC), a reactive emulsifier, a copolymerization initiator, and an alkalizing agent And the first subject (A), which is an acrylic copolymer resin containing a peroxide curing agent, and the second subject (B), which is a reinforcing resin containing an unsaturated polyester resin and a peroxide curing agent, and the chemical adhesive strength of polymer concrete an organic binder comprising a silane-based coupling agent (C), which is a crosslinking agent for increasing; Garnet sludge for abrasives or garnet sludge for waterjet cutting is recovered and recycled from fine garnet aggregate with a particle size of 0.05 to 2 mm and an inorganic binder containing calcium carbonate filler; including methyl methacrylate (MMA)-based acrylic resin and garnet fine aggregate Polymer concrete mortar composition for thin layer pavement for bridges is a solution to the problem.

The methyl methacrylate (MMA)-based acrylic resin and the polymer concrete mortar composition for thin layer pavement for bridges containing fine garnet aggregate is, based on 100 parts by weight of water, 40-50 parts by weight of methyl methacrylate (MMA), 2-ethylhexyl 50 to 70 parts by weight of acrylate (2-EHAM) and 10 to 20 parts by weight of methacrylic acid (MAAC), 5 to 20 parts by weight of a reactive emulsifier, 5 to 7 parts by weight of a copolymerization initiator, and 1 to 2 parts by weight of an alkalizing agent 20-30 parts by weight of the first main (A), which is an acrylic copolymer resin containing parts and 3-5 parts by weight of a peroxide curing agent, 10-30 parts by weight of an unsaturated polyester resin, and 2-7 parts by weight of a peroxide curing agent An organic binder composed of 5 to 10 parts by weight of the second main agent (B), which is a reinforcing resin, and 5 to 7 parts by weight of a silane-based coupling agent (C), which is a crosslinking agent for increasing the chemical adhesion of polymer concrete; Inorganic binder composed of 50 to 70 parts by weight of fine garnet aggregate having a particle size of 0.05 to 2 mm and 10 to 20 parts by weight of calcium carbonate filler; do it by means

The reactive emulsifier is an anionic reactive emulsifier sodium dodecylbenzene sulfonate (SDBS), sodium polyoxyethylene alkyl phenyl ether sulfate (SPAS), a nonionic reactive emulsifier polyoxy Ethylene nonylphenyl ether (Polyoxyethylene nonylphenyl ether; POENPE) to be any one selected as a means of solving the problem.

The copolymerization initiator uses ammonium persulfate (APS) and sodium metabisulfite (SMBS) in a 1:1 weight ratio to solve the problem.

The alkalizing agent is sodium bicarbonate as a means of solving the problem.

The peroxide curing agent is benzyl peroxide (Benzoyl Peroxide), tert-butyl hydroperoxide (t-BHP) or methyl ethyl ketone peroxide (Methyethylketoneperoxide; MEKPO) as a means of solving the problem.

The silane-based coupling agent is 3-methylacryloxyviny1 silane (MAOS) as a means of solving the problem.

The collected and recycled garnet fine aggregate has a specific gravity of 3.4 to 3.9 g/cm and a Mohs (MOHS) hardness of 6.0 to 8.0 as a means of solving the problem.

As a means of solving the problem, 50% by weight of the calcium carbonate filler used is replaced with blast furnace slag powder or fly ash powder.

The methyl methacrylate (MMA)-based acrylic resin and the polymer concrete mortar composition for thin layer pavement for bridges comprising fine garnet aggregate has a curing time of 1 to 2 hours, a compressive strength of 20-40 MPa, and a flexural strength of 5-15 MPa. do it with

On the other hand, the present invention, cleaning the bridge surface for a new bridge surface pavement, or a pre-treatment step of removing the deteriorated, damaged or contaminated portion of the existing bridge surface pavement; A primer application step of diluting the polymer concrete mortar composition for thin layer paving of bridges containing the methyl methacrylate (MMA)-based acrylic resin and fine garnet aggregate in water to a concentration of 10 to 20% by weight on the pretreated bridge surface as a primer. Wow; The step of pouring and curing the polymer concrete mortar composition for thin layer paving of bridges including the methyl methacrylate (MMA)-based acrylic resin and fine garnet aggregate on the coated surface of the primer, and curing it to pave the bridges in thin layers; as a means of solving the problem.

The polymer concrete mochtar composition for thin layer pavement for bridges comprising methyl methacrylate (MMA)-based acrylic resin and garnet fine aggregate of the present invention and the construction method for thin layer paving for bridges using the same include water, methyl methacrylate (MMA), 2-ethyl Hexyl acrylate (2-EHAM) and methacrylic acid (MAAC), a reactive emulsifier, a copolymerization initiator, an acrylic copolymer resin comprising an alkalizing agent and a peroxide curing agent, the first main agent (A), and an unsaturated polyester resin ( Unsaturated polyester resin) and an organic binder comprising a second main agent (B) as a reinforcing resin containing a peroxide curing agent, and a silane-based coupling agent (C) as a crosslinking agent for increasing the chemical adhesion of polymer concrete; Garnet sludge for abrasives or garnet sludge for waterjet cutting is recovered and recycled from fine garnet aggregate with a particle size of 0.05 to 2 mm and an inorganic binder including calcium carbonate filler. It reduces the dead weight of the pavement, and the construction or repair of the bridge pavement is easy to reduce the construction cost and shorten the construction period.

1 is a photograph of garnet fine aggregate particles recovered and recycled from garnet sludge for abrasives;
2 is a photograph of garnet fine aggregate particles recovered and recycled from garnet sludge for water jet cutting.

The present invention includes water, methyl methacrylate (MMA), 2-ethylhexyl acrylate (2-EHAM) and methacrylic acid (MAAC), a reactive emulsifier, a copolymerization initiator, an alkalizer and a peroxide curing agent. The first subject (A) which is an acrylic copolymer resin, the second subject (B) which is a reinforcing resin containing an unsaturated polyester resin and a peroxide curing agent, and silane which is a crosslinking agent for increasing the chemical adhesion of polymer concrete an organic binder comprising a coupling agent (C); Garnet sludge for abrasives or garnet sludge for waterjet cutting is recovered and recycled from fine garnet aggregate with a particle size of 0.05 to 2 mm and an inorganic binder containing calcium carbonate filler; including methyl methacrylate (MMA)-based acrylic resin and garnet fine aggregate A polymer concrete mortar composition for thin-layer paving of bridges is characterized by its technical configuration.

The methyl methacrylate (MMA)-based acrylic resin and the polymer concrete mortar composition for thin layer pavement for bridges containing fine garnet aggregate is, based on 100 parts by weight of water, 40-50 parts by weight of methyl methacrylate (MMA), 2-ethylhexyl 50 to 70 parts by weight of acrylate (2-EHAM) and 10 to 20 parts by weight of methacrylic acid (MAAC), 5 to 20 parts by weight of a reactive emulsifier, 5 to 7 parts by weight of a copolymerization initiator, and 1 to 2 parts by weight of an alkalizing agent 20-30 parts by weight of the first main (A), which is an acrylic copolymer resin containing parts and 3-5 parts by weight of a peroxide curing agent, 10-30 parts by weight of an unsaturated polyester resin, and 2-7 parts by weight of a peroxide curing agent An organic binder composed of 5 to 10 parts by weight of the second main agent (B), which is a reinforcing resin, and 5 to 7 parts by weight of a silane-based coupling agent (C), which is a crosslinking agent for increasing the chemical adhesion of polymer concrete; An inorganic binder composed of 50 to 70 parts by weight of fine garnet aggregate having a particle size of 0.05 to 2 mm and 10 to 20 parts by weight of a calcium carbonate filler; characterized.

The reactive emulsifier is an anionic reactive emulsifier sodium dodecylbenzene sulfonate (SDBS), sodium polyoxyethylene alkyl phenyl ether sulfate (SPAS), a nonionic reactive emulsifier polyoxy Ethylene nonylphenyl ether (Polyoxyethylene nonylphenyl ether; POENPE) is characterized in that any one selected from the technical configuration.

The copolymerization initiator is characterized in that it is a mixture of ammonium persulfate (Ammonium persulfate; APS) and sodium metabisulfite (SMBS) in a 1:1 weight ratio.

The alkalizing agent is characterized in that the technical configuration is sodium bicarbonate (Sodium bicarbonate).

The peroxide curing agent is benzyl peroxide (Benzoyl Peroxide), tert-butyl hydroperoxide (T-BHP) or methyl ethyl ketone peroxide (Methyethylketoneperoxide; MEKPO) is characterized in the technical configuration.

The silane-based coupling agent is characterized in that the technical configuration is 3-methylacryloxyviny1 silane (MAOS).

The recovered and recycled garnet fine aggregate has a specific gravity of 3.4 to 3.9 g/cm and a Mohs (MOHS) hardness of 6.0 to 8.0.

The calcium carbonate filler is characterized in that 50% by weight of the amount used is replaced with blast furnace slag powder or fly ash powder.

The polymer concrete mortar composition for thin layer pavement for bridges comprising the methyl methacrylate (MMA)-based acrylic resin and fine garnet aggregate has a curing time of 1 to 2 hours, a compressive strength of 20-40 MPa, and a flexural strength of 5-15 MPa. do it with

In addition, the present invention, cleaning the bridge surface for a new bridge pavement, or a pre-treatment step of removing the deteriorated, damaged or contaminated part of the existing bridge pavement; A primer application step of diluting the polymer concrete mortar composition for thin layer paving of bridges containing the methyl methacrylate (MMA)-based acrylic resin and fine garnet aggregate in water to a concentration of 10 to 20% by weight on the pretreated bridge surface as a primer. Wow; The step of pouring and curing the polymer concrete mortar composition for thin layer paving of bridges including the methyl methacrylate (MMA)-based acrylic resin and fine garnet aggregate on the coated surface of the primer, and curing it to pave the bridges in thin layers; It is characterized by the technical composition.

Hereinafter, embodiments and/or drawings of the present invention will be described in detail so that those of ordinary skill in the art can easily carry out the present invention. However, the present invention may be embodied in many different forms, and is not limited to the embodiments and/or drawings described herein.

First, the polymer concrete mortar composition for thin layer pavement for bridges containing the methyl methacrylate (MMA)-based acrylic resin and garnet fine aggregate of the present invention is, based on 100 parts by weight of water, 40 to 50 parts by weight of methyl methacrylate (MMA), 50 to 70 parts by weight of 2-ethylhexyl acrylate (2-EHAM) and 10 to 20 parts by weight of methacrylic acid (MAAC), 5 to 20 parts by weight of a reactive emulsifier, 5 to 7 parts by weight of a copolymerization initiator, and an alkalizing agent 20-30 parts by weight of the first main (A), which is an acrylic copolymer resin containing 1-2 parts by weight and 3-5 parts by weight of a peroxide curing agent, 10-30 parts by weight of an unsaturated polyester resin, and a peroxide curing agent 2 An organic-based composition comprising 5 to 10 parts by weight of the second main agent (B), which is a reinforcing resin containing ~7 parts by weight, and 5 to 7 parts by weight, a silane-based coupling agent (C), which is a crosslinking agent for increasing the chemical adhesion of polymer concrete. a binder; An inorganic binder composed of 50 to 70 parts by weight of fine garnet aggregate having a particle size of 0.05 to 2 mm and 10 to 20 parts by weight of a calcium carbonate filler;

At this time, the methyl methacrylate (MMA) resin used in the acrylic copolymer resin composition is a colorless and transparent liquid that oxidizes tert-butyl alcohol (TBA) prepared from C4 oil as a raw material in a gaseous state. It is a reactive resin made to have double carbon bonds through a polymerization reaction process of acrylic acid and methacrylic acid ester, which is produced by esterification with methanol after preparing methacrylic acid, CH ₂ =C(CH ₃ ) It has the chemical formula of _{CO 2} CH _{3 .}

This methyl methacrylate (MMA) resin is a hard type and flexible, and when radical polymerization at low temperature, the ratio of the syndiotactic structure showing continuous regularity of the polymer chain structure is increased, so it is durable. It has excellent physical properties such as heat resistance, chemical resistance, abrasion resistance, UV safety, etc. By penetrating and integrating, it improves adhesion strength and toughness, has good colorability by pigments, etc., has a high coefficient of thermal expansion, but is a highly stable resin, so it is used in many fields because of its excellent transparency, weather resistance, and colorability.

However, the methyl methacrylate (MMA) resin starts curing when a small amount of curing agent is added about 2 to 5% of the resin amount. The time is about 20 minutes and it has excellent workability, so it can be installed and finished in a large area. This MMA resin has very good strength after hardening, but it lacks crack resistance and warpage followability, as well as thermal expansion characteristics with the substrate. Due to this difference, there is a problem that cracks are easy to occur when used outdoors rather than indoors.

Accordingly, in the present invention, water, methyl methacrylate (MMA), 2-ethylhexyl acrylate (2-EHAM) and methacrylic acid (MAAC), A first main agent (A), which is an acrylic copolymer resin containing a reactive emulsifier, a copolymerization initiator, an alkalizing agent, and a peroxide curing agent, and a reinforcing resin containing an unsaturated polyester resin (Unsaturated polyester resin) and a peroxide curing agent The second main agent ( B) and an organic binder including a silane-based coupling agent (C), which is a crosslinking agent for increasing the chemical adhesion of polymer concrete, is mixed with fine garnet aggregate and calcium carbonate filler to form a mortar.

Here, the first subject (A), which is the acrylic copolymer resin, is based on 100 parts by weight of water, 40 to 50 parts by weight of methyl methacrylate (MMA), 50 to 70 parts by weight of 2-ethylhexyl acrylate (2-EHAM) And 10 to 20 parts by weight of methacrylic acid (MAAC), 5 to 20 parts by weight of a reactive emulsifier, 5 to 7 parts by weight of a copolymerization initiator, 1 to 2 parts by weight of an alkalizing agent, and 3 to 5 parts by weight of a peroxide curing agent. When the content of each component is out of the range of the copolymerization, it is preferable that the content of each component is maintained because the cured properties are affected.

At this time, the reactive emulsifier is an anionic reactive emulsifier sodium dodecylbenzene sulfonate (SDBS), sodium polyoxyethylene alkyl phenyl ether sulfate (SPAS), a nonionic reactive emulsifier Use any one selected from polyoxyethylene nonylphenyl ether (POENPE).

In addition, as the copolymerization initiator, it is preferable to use a mixture of ammonium persulfate (APS) and sodium metabisulfite (SMBS) in a 1:1 weight ratio.

In addition, it is preferable to use sodium bicarbonate as the alkalinizing agent.

On the other hand, the second subject (B), which is a reinforcing resin mixed with the first main (A), which is the acrylic copolymer resin, includes 10 to 30 parts by weight of an unsaturated polyester resin and 2 to 7 parts by weight of a peroxide curing agent. 5 to 10 parts by weight is used as a composition.

At this time, the unsaturated polyester resin (Unsaturated polyester resin) has excellent mechanical and chemical resistance, excellent curability, and can be freely cured even at room temperature compared to other resins. It is mixed and used as a reinforcing resin for reinforcing physical properties and improving construction speed.

In addition, 5 to 7 parts by weight of a silane-based coupling agent (C), which is a crosslinking agent for increasing the chemical adhesion of polymer concrete of the polymer concrete mortar composition of the present invention, is used, wherein the silane-based coupling agent (C) is 3-methyl It is preferable to use acryloxyvinylsilane (3-methylacryloxyviny1 silane; MAOS).

In addition, the peroxide curing agent used in the first subject (A), which is the acrylic copolymer resin, and the second main (B), which is a reinforcing resin, is benzyl peroxide, tert-butyl hydroperoxide : t-BHP) or methyl ethyl ketone peroxide (MEKPO) is preferably used.

In addition, the collected and recycled garnet fine aggregate uses a specific gravity of 3.4 to 3.9 g/cm and a Mohs (MOHS) hardness of 6.0 to 8.0.

In particular, as a silicate mineral, garnet is composed of various components and has a higher hardness and specific gravity than fine aggregates containing silica sand, so as shown in the following [Table 1] and [Fig. 1], it is used for abrasives such as sandblasting, Or, as shown in the following [Table 2] and [Fig. 2], since it is used for waterjet cutting, in the present invention, the strength of the bridge-face thin-layer pavement is reinforced by the high hardness and specific gravity of the garnet and the durability of the bridge-face thin-layer pavement is improved. use for

At this time, it is preferable to use 50 to 70 parts by weight of the garnet, which is about twice the amount of the organic binder used, if it is less than the above range, the garnet may be precipitated in the organic binder. there is a risk of becoming

In addition, 10 to 20 parts by weight of the calcium carbonate filler may be used, and at this time, 50% by weight of the amount used may be replaced with blast furnace slag powder or fly ash powder.

Here, the blast furnace slag is generated during the ironmaking process of the blast furnace and may contain ions such as Ca, Si, and Al, and thus can be used as a substitute for cement. refers to the coal ash collected by a dust collector from the flue gas of a boiler that burns pulverized coal. The spherical particle size is about the same as that of cement, and alumina (Al2O3) and silica (SiO2) are the main components, and it is used as an admixture for concrete. It is used as an alternative filler to replace calcium carbonate filler.

As described above, the polymer concrete mortar composition for bridge surface thin-layer pavement comprising the methyl methacrylate (MMA)-based acrylic resin and garnet fine aggregate of the present invention has a curing time of 1 to 2 hours, a compressive strength of 20-40 MPa, and a flexural strength of 5-15 MPa It can satisfy the physical properties required for bridge pavement by exhibiting the physical properties of

On the other hand, the thin-layer bridge pavement construction method using the polymer concrete mortar composition for thin-layer bridge pavement comprising the methyl methacrylate (MMA)-based acrylic resin and garnet fine aggregate of the present invention is to clean the bridge surface for a new bridge surface pavement, or to clean the bridge surface for the existing bridge surface. A pretreatment step of removing the deteriorated, damaged or contaminated portion of the packaging; A primer application step of diluting the polymer concrete mortar composition for thin layer paving of bridges containing the methyl methacrylate (MMA)-based acrylic resin and fine garnet aggregate in water to a concentration of 10 to 20% by weight on the pretreated bridge surface as a primer. Wow; It can be constructed by a method comprising; pouring a polymer concrete mortar composition for thin layer paving of bridges containing the methyl methacrylate (MMA)-based acrylic resin and fine garnet aggregate on the coated surface of the primer, hardening it and paving the bridges in thin layers; there is.

[Production of polymer concrete mortar composition for bridge surface thin-layer pavement of the present invention]

100 kg of water, 50 kg of methyl methacrylate (MMA), 60 kg of 2-ethylhexyl acrylate (2-EHAM), 20 kg of methacrylic acid (MAAC), 10 kg of sodium dodecylbenzenesulfonate, 2.5 kg of ammonium persulfate (APS), 25 kg of the first main acrylic copolymer resin (A) containing 2.5 kg of sodium metabisulfite (SMBS), 1 kg of sodium bicarbonate, and 3 kg of tert-butyl hydroperoxide (t-BHP), and an unsaturated polyester resin ( Unsaturated polyester resin) 2~6kg and MEKPO 0.7kg of reinforcing resin (B) 7kg, 3-methylacryloxyviny1 silane (MAOS) 5kg organic binder mixed; 60 kg of fine garnet aggregate (Daegu Eugene Tech) with a particle size of 0.05 to 2 mm that is recovered and recycled from garnet sludge for waterjet cutting; A polymer concrete mortar composition for bridge surface thin-layer paving of the present invention was prepared by mixing 10 kg of calcium carbonate filler and an inorganic binder mixed with it.

[Measurement of physical properties]

According to KS F 2425 "Method for making concrete samples in a laboratory," a concrete floor plate was manufactured. Then, the primer composition of the present invention is applied from above on the upper surface, and the polymer concrete mortar composition for bridge surface thin-layer pavement of [Example 1] is applied to a thickness of 15 mm and cured to prepare a test body, and each test in the following [Table 3] The physical properties were measured according to the method and the results are shown.

ship reference value Example 1 Test Methods Compressive strength (MPa) over 21 33.5 KS F 2405 Flexural strength (MPa) 4.5 or higher 12.5 KS F 2408 Adhesive strength (MPa) 1.4 or later 4.3 KS F 2762

As shown in the test results in [Table 3], it can be seen that the polymer concrete mortar composition for thin layer pavement for bridge bridges of the present invention far exceeds the reference values in all physical properties and satisfies them.

[Waterproof performance measurement]

In order to measure the waterproof performance in accordance with KS F 4932 "Paint waterproofing material for bridge surfaces", the tensile strength, shear adhesion strength, tensile adhesion strength, and permeability resistance of the polymer concrete mortar composition for thin layer pavement for bridge surfaces prepared in [Example 1] were measured. did.

As a result, it was confirmed that the polymer concrete mortar composition for thin layer paving for bridges of the present invention was excellent in tensile strength, shear adhesive strength, tensile adhesive strength, and water permeation resistance.

The above description is merely illustrative of the technical idea of the present invention, and various modifications and variations will be possible without departing from the essential characteristics of the present invention by those skilled in the art to which the present invention pertains. Accordingly, the embodiments and/or drawings disclosed in the present invention are for explanation rather than limiting the technical spirit of the present invention, and the scope of the technical spirit of the present invention is not limited by these embodiments and/or drawings. . The protection scope of the present invention should be construed by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

Claims (11)

Water, methyl methacrylate (MMA), 2-ethylhexyl acrylate (2-EHAM) and methacrylic acid (MAAC), anionic reactive emulsifier sodium dodecylbenzene sulfonate (SDBS), sodium Any one reactive emulsifier selected from sodium polyoxyethylene alkyl phenyl ether sulfate (SPAS) and polyoxyethylene nonylphenyl ether (POENPE), which is a nonionic reactive emulsifier, and ammonium persulfate (Ammonium persulfate; APS) and sodium metabisulfite (Sodium metabisulfite; SMBS) a copolymerization initiator mixed in a weight ratio of 1:1, an acrylic copolymer resin comprising an alkalizing agent and a peroxide curing agent The first subject (A) and unsaturated An organic binder comprising a second main agent (B), which is a reinforcing resin containing unsaturated polyester resin and a peroxide curing agent, and a silane-based coupling agent (C), which is a crosslinking agent for increasing the chemical adhesion of polymer concrete; Methyl methacrylate (MMA)-based acrylic resin and Polymer concrete mortar composition for bridge surface thin-layer pavement containing fine garnet aggregate
According to claim 1,
The methyl methacrylate (MMA)-based acrylic resin and the polymer concrete mortar composition for thin layer pavement for bridges containing fine garnet aggregate is, based on 100 parts by weight of water, 40-50 parts by weight of methyl methacrylate (MMA), 2-ethylhexyl 50 to 70 parts by weight of acrylate (2-EHAM) and 10 to 20 parts by weight of methacrylic acid (MAAC), 5 to 20 parts by weight of a reactive emulsifier, 5 to 7 parts by weight of a copolymerization initiator, and 1 to 2 parts by weight of an alkalizing agent 20-30 parts by weight of the first main (A), which is an acrylic copolymer resin containing parts and 3-5 parts by weight of a peroxide curing agent, 10-30 parts by weight of an unsaturated polyester resin, and 2-7 parts by weight of a peroxide curing agent An organic binder composed of 5 to 10 parts by weight of the second main agent (B), which is a reinforcing resin, and 5 to 7 parts by weight of a silane-based coupling agent (C), which is a crosslinking agent for increasing the chemical adhesion of polymer concrete; An inorganic binder composed of 50 to 70 parts by weight of fine garnet aggregate having a particle size of 0.05 to 2 mm and 10 to 20 parts by weight of a calcium carbonate filler, which is recovered and recycled from garnet sludge for abrasives or garnet sludge for waterjet cutting; Polymer concrete mortar composition for bridge surface thin-layer paving comprising methyl methacrylate (MMA)-based acrylic resin and fine garnet aggregate
delete delete 3. The method of claim 2,
The alkalizing agent is sodium bicarbonate (sodium bicarbonate), characterized in that the methyl methacrylate (MMA)-based acrylic resin and a polymer concrete mortar composition for thin layer pavement bridges comprising fine garnet aggregate
3. The method of claim 2,
The peroxide curing agent is benzyl peroxide (Benzoyl Peroxide), tert-butyl hydroperoxide (T-BHP) or methyl ethyl ketone peroxide (Methyethylketoneperoxide; MEKPO), characterized in that methyl methacrylate (MMA) Polymer concrete mortar composition for thin layer pavement for bridges containing )-based acrylic resin and fine garnet aggregate
3. The method of claim 2,
The silane-based coupling agent is 3-methylacryloxyviny1 silane (MAOS), characterized in that the methyl methacrylate (MMA)-based acrylic resin and a polymer concrete mortar composition for thin layer pavement bridges comprising garnet fine aggregate
3. The method of claim 2,
The recovered and recycled garnet fine aggregate has a specific gravity of 3.4 to 3.9 g/cm and a Mohs (MOHS) hardness of 6.0 to 8.0. composition
3. The method of claim 2,
The calcium carbonate filler is a polymer concrete mortar composition for thin layer pavement for bridges comprising a methyl methacrylate (MMA)-based acrylic resin and garnet fine aggregate, characterized in that 50% by weight of the amount used is replaced with blast furnace slag powder or fly ash powder.
3. The method of claim 2,
The methyl methacrylate (MMA)-based acrylic resin and the polymer concrete mortar composition for thin layer pavement for bridges comprising the fine garnet aggregate has a curing time of 1 to 2 hours, a compressive strength of 20-40 MPa, and a flexural strength of 5-15 MPa. Polymer concrete mortar composition for bridge surface thin-layer pavement comprising methacrylate (MMA)-based acrylic resin and fine garnet aggregate
A pretreatment step of cleaning the bridge surface for the new bridge pavement or removing the deteriorated, damaged or contaminated part of the existing bridge pavement; A polymer concrete mortar composition for thin layer pavement of a bridge comprising the methyl methacrylate (MMA)-based acrylic resin and garnet fine aggregate according to any one of claims 1 to 2 and 5 to 10 on the pretreated bridge surface. A primer application step of applying a primer diluted to a concentration of 10 to 20% by weight in water as a primer; A polymer concrete mortar composition for thin layer pavement for bridges comprising the methyl methacrylate (MMA)-based acrylic resin and garnet fine aggregate according to any one of claims 1 to 2 and 5 to 10 on the applied primer surface. A thin layer paving construction method for bridges using a polymer concrete mortar composition for thin layer pavement for bridges, comprising the step of pouring, curing and paving the bridges in thin layers;

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