KR102276178B1 - Composition using a polymer mixed resin, and the construction method using the composition - Google Patents

Abstract

The present invention relates to a composition using a polymer mixed resin and a construction method using the composition. Specifically, the composition comprises: a first resin; a second resin; a silane coating agent; a strength enhancer; and an inorganic hollow body. The first resin is a polyurethane-based resin, and the second resin comprises at least one selected from a group consisting of polymethyl methacrylate, methyl methacrylate, alkyd, phenol, unsaturated polyester and polyvinyl alcohol. The silane coating agent comprises at least one silane compound selected from a group consisting of alkoxy silane, amino silane, epoxy silane, acrylic silane, mercapto silane, fluorine silane, methacroxy silane, vinyl silane, chloro silane and silazane. The strength enhancer comprises at least one selected from a group consisting of calcium carbonate, calcium chloride, calcium hydroxide and gypsum. The inorganic hollow body comprises vermiculite, diatomite, kaolin, bentonite, bauxite, ball clay, perlite, attapulgite, quartz, glass bubble, silicone and zeolite.

Description

A composition using a polymer mixture resin and a construction method using the composition {COMPOSITION USING A POLYMER MIXED RESIN, AND THE CONSTRUCTION METHOD USING THE COMPOSITION}

The present invention relates to a composition using a polymer mixed resin and a construction method using the composition.

Concrete and mortar using synthetic resin are used to compensate for problems such as long curing time and cracking of general cement concrete and mortar. Representative examples of the polymer synthetic resin used in the manufacture of concrete (mortar) using mortar or resin mortar composition include epoxy resin, urethane resin, or unsaturated polyester resin.

Polymer resin mortar containing epoxy resin has the advantage of realizing excellent strength and ductility according to the excellent adhesion and plasticity of the epoxy resin, but as an outdoor structure, it is very vulnerable to UV rays, so it is durable and discoloration resistance due to yellowing for outdoor use There are limitations in terms of gender. In addition, in the case of a polymer resin mortar containing a urethane resin, due to the excellent ductility and toughness of the urethane resin, the crack resistance is very good when forming a concrete structure and has the advantage of implementing various toughness, but the adhesive strength with inorganic aggregate is different. Since it is weaker than resins, there is a problem in that the strength of the polymer resin mortar is weakened. In addition, polymer resin mortar containing unsaturated polyester resin has the advantage of showing excellent strength, acid resistance and chemical resistance while being inexpensive, but it is vulnerable to impact due to its relatively stiff physical properties compared to other resins after curing, and shrinkage during curing There is a problem in that cracks and peeling from the underlying material are likely to occur.

As a method for improving the problems of polymer resin mortar using the unsaturated polyester resin, Korean Patent Publication No. 10-0398275 discloses a high plasticity unsaturated polyester resin with high elongation properties as a hard and low elongation unsaturated poly A technique for producing a resin composition for polymer mortar by blending with an ester resin is disclosed. However, according to this technique, although the tensile elongation is improved, there is a problem in that the compressive strength and the flexural strength are rather decreased.

As another method for improving the problems of polymer resin mortar using unsaturated polyester resin, a resin named methyl methacrylate (MMA) resin is used in the manufacture of polymer resin mortar. Since MMA resin has the same radical curing system as unsaturated polyester resin, solidification can be controlled, and various properties can be realized depending on the molecular structure and the type and composition of the compound.

As a specific example, Korean Patent Publication No. 10-0869080 discloses a technique for preparing a resin composition for polymer mortar by blending polymethyl methacrylate and a urethane acrylate resin. However, according to this technique, the effect of suppressing the occurrence of cracks due to plastic deformation and temperature change and the compressive strength of 67 MPa were realized, but the effect on the adhesion strength required in the actual field was not mentioned. In addition, the technology prepares an amide-based prepolymer by using adipic acid, which is a polybasic acid, in the actual production of a urethane acrylate resin, and dimethyl acetamide, which is usually used as a solvent, is used as a curing accelerator. It is expected that it will be difficult to obtain a sufficient curing accelerating effect.

In addition, Korean Patent Publication No. 10-0927665 and Korean Patent Publication No. 10-0849901 disclose a technique for manufacturing a flooring material and a packaging body using MMA resin. However, compared to general polymer concrete mortar, antibacterial resistance, durability, and drainage properties were realized, but the effect on improvement of basic physical properties such as compressive strength, flexural strength and adhesion strength was not mentioned.

Accordingly, it is required to develop an excellent mortar composition in terms of compressive strength, flexural strength and adhesion strength.

Registered Patent Publication No. 10-0398275 (Registered on September 2, 2003) Registered Patent Publication No. 10-0869080 (Registered on November 14, 2008) Registered Patent Publication No. 10-0927665 (Registered on Nov. 12, 2009) Registered Patent Publication No. 10-0849901 (2008.07.28. Registered)

An object of the present invention, the first resin; a second resin; silane coating agent; strength enhancers; and an inorganic hollow body; and a mortar composition using a polymer mixed resin prepared by further including an additive, a curing agent, a curing accelerator and a granular aggregate in the composition,

At the same time, to provide a method for paving or repairing the bridge surface and the road using the above-described mortar composition.

A composition using a polymer mixed resin according to the present invention, which was devised to achieve the above object,

a first resin; a second resin; silane coating agent; strength enhancers; and an inorganic hollow body; as a composition comprising:

The first resin is a polyurethane-based resin,

The second resin comprises at least one selected from the group consisting of polymethyl methacrylate, methyl methacrylate, alkyd, phenol, unsaturated polyester and polyvinyl alcohol,

The silane coating agent comprises at least one silane compound selected from the group consisting of alkoxy silane, amino silane, epoxy silane, acrylic silane, mercapto silane, fluorine silane, methacroxy silane, vinyl silane, chloro silane and silazane,

The strength enhancer includes at least one selected from the group consisting of calcium carbonate, calcium chloride, calcium hydroxide and gypsum,

The inorganic hollow body includes vermiculite, diatomite, kaolin, bentonite, bauxite, ball clay, perlite, or attapulgite. , quartz (quartz), glass bubble (glass bubble), silicon (silicone) and characterized in that it comprises at least one selected from the group consisting of zeolite (zeolite).

At this time, 50 to 60% by weight of the first resin; 15 to 20% by weight of the second resin; 2 to 8 wt% of a silane coating agent; 3 to 8% by weight of a strength enhancer; and 10 to 25% by weight of the inorganic hollow body.

In addition, the inorganic hollow body is characterized in that it is coated with a silane compound.

In addition, based on 100 parts by weight of the composition, inorganic pigments, adhesion promoters, dispersants, surface active agents, polymerization inhibitors, waxes, impact modifiers, antibacterial agents, release agents, heat stabilizers, antioxidants, light stabilizers, colorants, stabilizers, pigments, dyes and 0.01 to 10 parts by weight of one or more additives selected from the group consisting of opacifying agents.

In addition, with respect to 100 parts by weight of the composition, it is characterized in that it further comprises 0.1 to 10 parts by weight of a curing agent and 0.01 to 1 parts by weight of a curing accelerator.

In addition, it is characterized in that the curing accelerator is an aniline-based compound or an amide-based compound.

In addition, with respect to 100 parts by weight of the composition, it is characterized in that it further comprises 50 to 90 parts by weight of the granular aggregate.

In addition, among the packaging methods using the above-described composition,

When the above pavement method is applied to the bridge surface,

A pre-treatment step of removing foreign substances and dust from the work area;

a primer pouring step of pouring a waterproof primer on the pre-treated work area;

On the waterproof primer, the installation step of installing the composition;

A compaction step of performing surface compaction of the installed composition;

A tinting forming step of forming a tining for slip prevention on the compacted surface; and

After the formation of the tinting, a curing step of curing the composition; characterized in that it comprises a.

In addition, among the packaging methods using the above-described composition,

When the above pavement method is applied to the road,

A pre-treatment step of removing foreign substances and dust from the work area;

a primer pouring step of pouring a waterproof primer on the pre-treated work area;

A first laying step of forming a first concrete layer by first installing a concrete composition after the primer is placed;

a wire mesh installation step of installing a wire mesh in order to enhance tensile properties after the first installation;

a secondary installation step of forming a secondary concrete layer while impregnating the wire mesh by secondly installing the composition after installing the wire mesh;

a compaction step of performing surface compaction of the second installed composition;

A tinting forming step of forming a tining for slip prevention on the compacted surface; and

After the formation of the tinting, a curing step of curing the composition;

The tinting forming step is

As a step of forming vertical grooves on the road at regular intervals,

After the formation of the tinting, it is characterized in that the construction is performed by cutting the joint and inserting the joint material.

In the case of the above-described road pavement, the first concrete layer has a thickness of 1 cm, and the second concrete layer has a thickness of 2 cm.

According to the composition using the polymer mixed resin according to the present invention and the construction method using the composition, it has a molecular structure having an unsaturated bond group at both ends or one end together with the first and second resins, so that excellent ductility can be exhibited, It can exhibit excellent compressive strength, flexural strength and adhesion strength, and as a result, it can be used as a structural material such as mortar, concrete, and a protective material for structural materials, and further has the effect of providing a lightweight concrete composition.

The terms or words used in the present specification and claims should not be construed as being limited to their ordinary or dictionary meanings, and the inventor may properly define the concepts of the terms to best describe his invention. Based on the principle, it should be interpreted as meaning and concept consistent with the technical idea of the present invention.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention and do not represent all the technical spirit of the present invention, so various equivalents that can be substituted for them at the time of the present application It should be understood that there may be variations and examples.

Hereinafter, prior to the description with reference to the drawings, it is not shown or specifically described for the known configurations that are not necessary to reveal the gist of the present invention, that is, those skilled in the art that can be added obviously by those skilled in the art. reveal the sound

The present invention relates to a composition using a polymer mixed resin and a construction method using the composition. More specifically, it depends on the composition for concrete mortar and its construction method.

The composition according to the present invention, the first resin; a second resin; silane coating agent; strength enhancers; and an inorganic hollow body; as a composition comprising, 50 to 60% by weight of the first resin; 15 to 20% by weight of the second resin; 2 to 8 wt% of a silane coating agent; 3 to 8% by weight of a strength enhancer; and 10 to 25% by weight of the inorganic hollow body.

The composition according to the present invention may be based on a conventional method for preparing and mixing compositions such as concrete, and may take the form of dry mixtures, solutions, dispersions, suspensions, slurries, pastes, dried or hardened products, multilayer composites, etc. can have In addition, the compositions according to the invention can be molded into various articles, applied onto or incorporated into various articles. The molded article includes all articles manufactured using a conventional composition such as concrete, and various civil and architectural structures, underwater and offshore structures, nuclear and power generation facility structures, nuclear waste treatment structures, precast structures, and anti-salt structures , more specifically, slabs of high-rise or high-rise buildings, road bridge tops, railroad slabs, high-elastic railroad sleepers, tunnel grouting, inter-floor noise materials, refrigeration and storage warehouse insulation flooring, high-insulation PC walls, etc., but are not limited thereto. In addition, a method commonly used in the art may be used for the above molding method or coating method.

Hereinafter, each component constituting the composition according to the present invention will be described in detail.

(1) first resin

The first resin of the composition according to the present invention is a polyurethane-based resin.

This polyurethane-based resin is meant to include one or more selected from the group consisting of polyurethane and polyurethane acrylate. In contrast to the unsaturated polyester-based resin generally used for concrete, which exhibits cracking, in the case of a urethane-based resin It can prevent cracking due to the elasticity of urethane.

The polyurethane includes all high molecular compounds having a urethane bond made by combining an alcohol group and an isocyanic acid group, and includes not only spandex made of synthetic fibers or urethane-based synthetic rubber, but also urethane foam containing air bubbles in polyurethane. The urethane-based synthetic rubber includes a polyester-based and a polyether-based, and polyester is made by reacting propylene glycol and ethylene glycol with adipic acid to make polyester, and naphthalene-1,5- having a molecular weight of up to 3,000 having hydroxyl groups at both ends It is made into a polymer by urethanization with diisocyanic acid, and the polyether type is made of high molecular weight polyurethane by reacting the terminal hydroxyl group of polyether mixed with propylene oxide and ethylene oxide with toluylene diisocyanic acid.

The polyurethane acrylate may be prepared by introducing an acrylate group to the polyurethane, but is not limited thereto. In addition, the polyurethane acrylate includes a polymer of acrylic ester, a copolymer of ethyl acrylate and chloroethyl vinyl ether, a copolymer of ethyl or butyl acrylate and acrylonitrile, and the like. Since the polyurethane acrylate has excellent oil resistance and heat resistance even at high temperatures, it exhibits suitable properties as the first resin of the composition according to the present invention.

In addition, the polyurethane or polyurethane acrylate includes a functional copolymer. Polyurethane or polyurethane acrylate functional copolymer may be characterized in that it is formed by copolymerizing polyurethane or polyurethane acrylate oligomer and fluorine-based acrylic monomer. In addition, if necessary, it may be copolymerized by further including one or more monomers capable of radical polymerization, but is not limited thereto. It is also possible to prepare a copolymer of polyurethane or polyurethane acrylate oligomer with excellent hardness and a fluorine-based acrylate monomer with low surface energy by radical solution polymerization, and the prepared resin has scratch resistance and antifouling properties in one copolymer. and adhesion at the same time.

The polyurethane or polyurethane acrylate oligomer may be prepared by a method known in the art or commercially available. After polymerizing a polyol and a diisocyanate compound to obtain an isocyanate-terminated polyurethane prepolymer, the isocyanate-terminated polyurethane prepolymer is reacted with a vinyl monomer having both a hydroxyl group and an acrylic group in the molecule to endcapping with an acrylate to endcapping a polyurethane acrylate oligomer can be manufactured. Here, the diisocyanate is not limited, but toluene 2,4-diisocyanate, diphenyl diisocyanate, xylene diisocyanate, isophorone diisocyanate, hexamethylene diisocyanate, tetramethylxylene diisocyanate, 4,4-dicyclo One or more may be selected from hexylmethane diisocyanate, 2,2,4-trimethylhexamethylene diisocyanate, 2,4,4-trimethylhexamethylene diisocyanate, diphenylmethane-4,4'-diisocyanate, and lysine diisocyanate. have. The polyol is not limited, but polypropylene glycol, polytetramethylene glycol, polycarbonate, polycaprolactone, polyester, ethylene glycol, propylene glycol, butanediol, 1,6 hexanediol, glycerol, trimethyropropane, pentaerythritol One or more of them may be selected. Examples of the vinyl monomer having both a hydroxyl group and an acryl group in the molecule are not limited, but at least one of hydroxyethyl acrylate, hydroxymethyl acrylate, hydroxypropyl acrylate, ε-caprolactone-β-hydroxyethyl acrylate can be selected and used.

(2) second resin

The second resin of the composition according to the present invention may include at least one selected from the group consisting of polymethyl methacrylate, methyl methacrylate, alkyd, phenol, unsaturated polyester, and polyvinyl alcohol.

The polymethyl methacrylate includes polymethyl methacrylate and crosslinked acrylic particles. In addition, the polymethyl methacrylate may be a homopolymer or copolymer of methyl methacrylate. The methyl methacrylate copolymer may be a copolymer obtained by polymerizing methyl methacrylate with one or more components selected from the group consisting of methyl acrylate, ethyl acrylate, butyl acrylate and styrene. Here, the composition ratio of the comonomers constituting the copolymer is not significantly limited in the range using methyl methacrylate as a main component, but preferably 80 to 99 wt% of methyl methacrylate and 1 to 20 wt% of the comonomer It can be polymerized at a ratio of More preferably, polymerization in a ratio of 85 to 97% by weight of methyl methacrylate and 3 to 15% by weight of the comonomer is preferable because heat resistance and scratch resistance properties are not lost.

The weight average molecular weight of the polymethyl methacrylate used in the present invention is preferably 60,000 to 150,000, and more preferably 70,000 to 130,000. When the weight average molecular weight of the polymethyl methacrylate exceeds 150,000, the impact strength is good, but a problem occurs in the processing of the polymethyl methacrylate due to an increase in the melt viscosity of the polymethyl methacrylate. On the other hand, when the weight average molecular weight of the polymethyl methacrylate is less than 60,000, the melt viscosity of polymethyl methacrylate is good, so that the processability of the polymethyl methacrylate is good, but mechanical properties such as impact strength and tensile strength are remarkably significant. is lowered

The alkyd may be prepared by mixing a polybasic acid, a polyhydric alcohol, and a fat or fatty acid. According to an embodiment of the present invention, the polybasic acid includes aliphatic, aromatic, saturated alicyclic, unsaturated carbonic acid, esterizable derivative, etc., and the content thereof is 1 to 20 wt%, preferably 3 to 8 wt%, based on the alkyd. %to be. When the content of the polybasic acid is less than 1% by weight, hardness and viscosity are lowered, and when it exceeds 20% by weight, hardness is increased and workability tends to be poor.

Examples of the polyhydric alcohol used for the preparation of the alkyd include ethylene glycol, 1,3 or 1,2-propanediol, 1,4, 1,3 or 1,2-butanediol, 2-ethylpropanediol-1,3 , 2-ethylhexanediol-1,3, neopentylglycol, 1,6-hexanediol, 1,4 or 1,2-cyclohexanediol, 1,4-bis-hydroxylmethyl-cyclohexane, or adipic acid and alcohols such as -bis-ethylene glycol ester, but is not limited thereto. The polyhydric alcohol is used in an amount of 7 to 20% by weight, preferably 12 to 16% by weight, based on the alkyd-based resin, and when it is less than 7% by weight, the flexibility is poor, and the workability may be deteriorated due to the high viscosity. Conversely, when it exceeds 20% by weight, hardness and viscosity are lowered, and drying becomes slow.

Fatty acids used for the production of the alkyd are vegetable and animal oils, coconut (coconut), ricinus (ricinus), paulownia (tung), olive (olive), soybean, cottonseed, saflower (saflower), dihydrate carbon Includes synthetic fatty acids made from the combination of isomers with fats such as oils and fatty acids, pork, tallow, train, deoiled fatty acids (tofa), and naturally unsaturated oils. Saturated fatty acids commonly used are coconut fatty acids, 1-ethylhexanoic acid, 3,4,4,-trimethylolhexanoic acid, palmitic acid, stearic acid, and synthetic saturated branched fatty acids. The amount of the fatty acid or oil used is 10 to 70% by weight, preferably 20 to 50% by weight, based on the alkyd, and if it is less than 10% by weight, the flexibility is lowered, the viscosity is increased, and the reaction is easy to gel. When it exceeds 70% by weight, hardness and viscosity are lowered, which may cause problems in water resistance.

The phenol includes a thermosetting synthetic resin obtained by heat-condensing phenol and formaldehyde, and phenol, o, m or p-cresol, 2,4-xylenol, 3,4-xylenol, 2,5-xylenol nol, cardanol, p-tert-butyl phenol, 2,2-bis(4-hydroxyphenyl)propane, 2,2-bis(3-bromo-4-hydroxyphenyl)-propane, 2,2- Bis (3,5-dichloro-4-hydroxyphenyl) propane, 2,2-bis (3-chloro-4-hydroxyphenyl) propane, bis (4-hydroxyphenyl) -methane, bis (4-hydroxy hydroxyphenyl)sulfone, bis(4-hydroxyphenyl)sulfide, risocinol, hydroquinone and the like.

The unsaturated polyester may be prepared by a crosslinking reaction by a condensation reaction of an unsaturated polybasic acid and a polyhydric alcohol, and polymerization by adding a polymerizable unsaturated monomer such as styrene and a curing agent, but is not limited thereto.

The polyvinyl alcohol may be generally obtained by hydrolyzing polyvinyl acetate or the like, but is not limited thereto. The polyvinyl alcohol includes a copolymer of vinyl alcohol, such as an ethylene-vinyl alcohol copolymer or a partially saponified ethylene-vinyl alcohol copolymer, and a monomer copolymerizable with vinyl alcohol. In addition, it includes modified polyvinyl alcohol into which carboxylic acid or the like is introduced. In this invention, these polyvinyl alcohol may be used individually by 1 type, and may be used in combination of 2 or more type.

(3) Silane coating agent

The silane coating agent of the composition according to the present invention serves to coat the fine particles. The silane coating agent may include a silane compound. Silane is the simplest silicone monomer and has an organic functional group that chemically bonds with organic materials and a hydrolyzable group that can react with inorganic materials in the same molecule, so it can function to bind organic and inorganic materials. Through this, it is possible to improve the quality of the composition according to the present invention, such as mechanical strength, water resistance, and adhesion, to increase abrasion resistance and weather resistance through surface coating, and to improve electrical properties and physical strength. The silane compound includes, but is not limited to, alkoxy silane, amino silane, epoxy silane, acryl silane, mercapto silane, fluorine silane, methacroxy silane, vinyl silane, chloro silane, silazane, and the like.

(4) Strength enhancers

The strength enhancer of the composition according to the present invention serves to improve the initial compressive strength of the composition.

The strength enhancer may include at least one selected from the group consisting of calcium carbonate, calcium chloride, calcium hydroxide, and gypsum, but is not limited thereto. The calcium carbonate and gypsum are pore filling materials that fill the voids between tissues of the composition, and improve the compressive strength by making the connective tissue dense. Calcium hydroxide functions to ensure high performance (high strength, high durability, high density) of connective tissue through the pozzolan reaction, and calcium chloride functions to promote the binding reaction of the composition.

(5) Inorganic hollow body

The inorganic hollow body of the composition according to the present invention promotes weight reduction of the composition.

The inorganic hollow body according to an embodiment of the present invention is a hollow particle with an empty inside, and the term "hollow" as used herein will be understood to mean an empty space inside surrounded by the inorganic composite forming the shell. can

The inorganic hollow body of the present invention includes vermiculite, diatomite, kaolin, bentonite, bauxite, ball clay, perlite, attapulgite ( attapulgite), quartz, glass bubble, silicon (silicone) and zeolite (zeolite) may be used, but is not limited thereto.

In addition, the inorganic hollow body includes an inorganic hollow body coated with a silane compound. The inorganic hollow body coated with the silane compound can not only strengthen the surface of the particles due to the surface coating effect, but also prevent the resin particles from flowing into the hollow of the inorganic hollow body during the preparation of the composition. Silane compounds include alkoxy silanes, amino silanes, epoxy silanes, acrylic silanes, mercapto silanes, fluorosilanes, methacroxy silanes, vinyl silanes, chloro silanes, silazanes, etc., which are used as the silane coating agent, but are limited thereto no.

The present invention provides a molded article obtained by curing the composition. The molded article has a compressive strength of 50 to 90 MPa, preferably 65 to 90 MPa, a flexural strength of 15 to 25 MPa, preferably 20 to 25 MPa, a tensile strength of 8 to 20 MPa, preferably 12 to 20 MPa, and 5 to 6 MPa, preferably It shows excellent physical properties such as adhesion strength of 5.3 to 6 MPa, and its specific gravity is 0.5 to 0.8, preferably 0.6 to 0.65 depending on the content of the inorganic hollow body.

On the other hand, in addition to the above-mentioned composition, the composition according to the present invention may further include an additive.

(6) additives

The composition according to the present invention may contain inorganic pigments, adhesion promoters, dispersants, surface active agents, polymerization inhibitors, waxes, impact modifiers, antibacterial agents, mold release agents, heat stabilizers, antioxidants, light stabilizers, colorants, stabilizers, pigments, Additives such as dyes and opacifying agents may be included.

These additives are not particularly limited to the amount used, but it may be preferable to use 0.01 to 10 parts by weight based on 100 parts by weight of the above-described composition by weight.

On the other hand, in addition to the above-mentioned composition, for the purpose of excellent compressive strength, flexural strength and adhesion strength of concrete and the like by the composition, it may further include a curing agent and a curing accelerator.

(7) hardener

The curing agent may be used without any particular limitation as long as it is a curing agent used in a composition such as conventional concrete.

Specific examples include peroxide-based compounds such as methyl ethyl ketone peroxide and benzoyl peroxide (BPO).

Although this curing agent is not particularly limited to the amount used, it may be advantageous for the expression of the physical property requirements of the present invention described above to be preferably used in an amount of 0.1 to 10 parts by weight based on 100 parts by weight of the composition by weight.

(8) hardening accelerator

The composition according to the present invention is used for the purpose of accelerating its curing, specifically aniline such as N,N-dimethylaniline and N,N-diethylaniline compound; Alternatively, an amide-based compound such as N,N-dimethylacetoacetamide may be used.

These curing accelerators can express the physical properties required in the present invention when used together with a peroxide-based curing agent. When the curing accelerator is used in an amount of 0.01 to 1 part by weight based on 100 parts by weight of the composition, it can provide sufficient pot life during field work, and also induce curing to a degree that can express the physical properties required in the present invention. It is preferable to be able to

On the other hand, the composition according to the present invention may further include a granular aggregate.

Examples of the granular aggregate include: particulate inorganic substances such as silica sand and gravel; Alternatively, powdered inorganic materials, such as calcium carbonate, alumina, castables, aluminum oxide, and titanium oxide, may be used alone or in combination of two or more, but the examples are not limited thereto.

The composition of the present invention according to the above-mentioned can exhibit excellent ductility by having a molecular structure having an unsaturated bond group at both ends or one end together with the first and second resins, thereby exhibiting excellent compressive strength, flexural strength and adhesion strength As a result, it can be used as structural materials such as mortar and concrete and as a protective material for structural materials. In addition to this, it is possible to provide a lightweight composition.

In addition, the composition according to the present invention exhibits superior strength equal to or higher than that of the conventional unsaturated polyester-based resin even when cured, and the ductility is remarkably improved to solve the problems of conventional unsaturated polyester resin-based mortars, such as cracking and peeling from the base. It is possible to solve the problem of urethane resin-based mortar, which has relatively weak strength, so that structures such as concrete and mortar with excellent compressive strength can be manufactured.

As an example of a method of manufacturing a mortar using the above-described composition, the composition is mixed with a curing agent, a curing accelerator and an additive, the granular aggregate is further mixed, and the mixed mixture is cured at room temperature to prepare a mortar. .

In this case, the hardening process of the molten may be performed by a conventional method. Specifically, the mortar can be manufactured by putting the prepared mortar composition into a mold, curing it at room temperature for 12 to 24 hours, removing the mold, and curing it again for 12 to 24 hours.

Hereinafter, a packaging method performed using the above-described composition will be described.

In a preferred embodiment, in the present invention, a method for paving the bridge surface and a method for paving a road will be described.

pavement method of bridge bridge

The method of paving the bridge surface includes a pretreatment step of removing foreign substances and dust from the work area; a primer pouring step of pouring a waterproof primer on the pre-treated work area; On the waterproof primer, the installation step of installing the composition; A compaction step of performing surface compaction of the installed composition; A tinting forming step of forming a tining for slip prevention on the compacted surface; and a curing step of curing the composition after forming the tinting.

In the pre-treatment step, foreign substances and contaminants on the surface of the bridge deck are cleaned with a shot blasting machine, high-pressure water jet, or a roll brush, and dust must be thoroughly removed in advance so that the waterproof primer can sufficiently penetrate the top plate. In addition, the top plate should be maintained in a sufficiently dry state.

In addition, the primer pouring step is a process for strengthening the concrete of the bridge deck and increasing the adhesion of the new and old concrete, checking the condition of the concrete surface of the top plate that has been subjected to laitance work in advance, and completely removing dust or foreign substances. Then, pour a permeable or highly permeable waterproof primer using the spray and push-type rubber spatula mounted on the vehicle. At this time, the pouring is performed to a predetermined thickness. In particular, it should be thoroughly coated with a roller or brush so that the waterproof primer can penetrate deep into the edge of the concrete top plate.

In addition, in the installation step, it is manufactured based on the composition described above with a field batch mixer or a movable truck mixer, and equipment that can be installed directly through a chute or molly on the front of the mixer should be used.

Pour the mixed composition as described above.

In addition, the compaction step, as equipment that can satisfy the degree of compaction and flatness of the finished surface, must be able to satisfy the following conditions.

-Installation equipment: Generally, backhoe is used, and in case of large-scale construction, bridge paper, deck finisher, screw-type spreader, belt-type spreader, and hopper spreader are used. Also, in the case of small-scale construction, strike-off using the power of the mixer can be used. However, the finishing equipment must be capable of moving forward and backward by its own power.

-Back finishing equipment: It must be a device that can raise the front of the screed so that the concrete surface finish on the rear surface is evenly spread.

-Finishing equipment: It must be equipped with two or more rotating rollers, an auger, and a vibrating pan of 1,500~2,000VPM so that compaction is possible.

In addition, in the tinting forming step, if the formability of the compacted surface is maintained after 30 to 60 minutes have elapsed after the surface finishing is completed, the tinting operation should be performed immediately. At this time, the depth of the groove should be 3mm or more as a standard, and the spacing of the grooves should be 3.5~4cm to have a sufficient friction coefficient.

In addition, the curing step should be protected from adverse effects such as drying, temperature change, load, impact, etc. until transportation is developed after surface finishing and tinting treatment are completed.

In particular, since dust and foreign substances may adhere to the surface during the curing process, cover the plastic and remove the plastic when 1 day of natural curing has elapsed and then open the traffic.

According to the composition-based bridge pavement method described above, the following effects are expected.

First, it solved the phenomenon of lowering the adhesion between new and old concrete, and penetrated the waterproof primer deep into the old concrete to primarily reinforce the sphere waterproofing and sphere, and supplement the double watertightness through the above-mentioned concrete composition to apply the watertightness to the surface of the bridge pavement There is an effect that can urgently prevent the penetration of moisture and chloride ions due to cracks, and the concrete composition according to the present invention is not affected by the penetration of moisture and chloride ions. It's easy to deal with emergency repairs.

Second, by using a high-elasticity and high-stiffness concrete composition, drying shrinkage and cracking that occur during concrete curing were suppressed, and the high-rigidity concrete composition was poured on the bridge top plate to maximize the effect of enhancing durability and abrasion resistance.

Third, based on the high elasticity and high strength properties of the concrete composition, in order to solve the problems caused by the excessive weight of the bridge deck structure, the existing bridge pavement thickness of 5-7 cm is packed with a thickness of 3 cm, thereby securing economic feasibility, A bridge pavement method was developed that solves the problem of the upper load of the bridge and contributes to the long life of the bridge. In particular, the slim type high elasticity/high rigidity bridge pavement method using a concrete composition, unlike other bridge surface paving methods, does not cut the cracks when cracks occur, and the greatest advantage is that it can be easily and economically repaired and reinforced with the same material concrete composition. .

Fourth, the most important thing in the bridge pavement is to solve the corrosion problem of the bridge top plate and steel plate. To prevent corrosion, the concrete structure of the bridge deck must be waterproofed. Until now, the majority of methods for waterproofing the concrete surface through coating waterproofing, penetrating waterproofing, and sheet waterproofing have been developed. Recently, a method of pouring modified concrete made by synthesizing latex and PVA fibers without waterproofing has been developed. The important thing is that there is no watertight concrete that completely blocks moisture, chloride ions and salt water. However, in the slim high-elasticity and high-strength bridge paving method using the composition according to the present invention, water, air, and gas can permeate by using the concrete composition for the first time to waterproof the bridge top plate concrete by pouring a high-permeability waterproof primer. Double-layered waterproofing treatment was applied to enhance the double safety effect.

Fifth, the causes of failure of the existing bridge pavement are mostly in the case of asphalt bridge pavement, plastic deformation due to insufficient compaction and ductile material, pothole phenomenon due to neutralization reaction of aggregate, and penetration of moisture and chloride ions due to aggregate separation. In the case of bridge pavement, the main causes were shrinkage cracks during curing, deterioration caused by the penetration of moisture and chloride ions into the concrete surface, and cracks due to the neutralization reaction of aggregates. However, the concrete composition is a non-porous waterproof concrete that cannot penetrate water, air, and gas, and fundamentally blocks the penetration of cracking factors. It has chemical resistance without reaction to acids and alkalis, and salt-resistant concrete without reaction to sodium chloride and chloride ions. , the composition according to the present invention has secured a multi-functional bridge surface pavement technology such as salt decomposition resistance, chemical resistance, and neutralization prevention that fundamentally solves the neutralization reaction of aggregate by coating the surface of the aggregate.

Sixth, the expansion joint device (expense joint) made to give elasticity to the bridge deck has a steel structure, so it is not easy to attach concrete. If there is a lot of traffic at the joint, most cracks occur, and the attached part is dropped off and the traffic flow has been identified as a number of risk factors. In the present invention, in order to solve the adhesion to the expansion joint device installed between the bridge deck boards, the cause of cracking and dropping was solved by using a high-adhesion concrete composition. In particular, the strength of the concrete composition is that it has excellent adhesion to steel and can perform integrated behavior without separation from steel.

Seventh, in recent bridge pavement, modified concrete without waterproofing treatment is being activated in asphalt concrete. In order to shorten the construction period and reduce labor costs, there is a trend to use simple and fast-hardening products in the construction method. However, in the examples above, the reformed concrete using LMC and the reformed concrete using PVA also consider the curing time to be at least 14 days. However, the concrete composition can be cured in just one day, and the advantage is that it can be installed at any time in 4 seasons from -25 to +40 as well as in the cold season, which can greatly contribute to the shortening of the construction period and the effect of reducing construction costs and labor costs. has a

road paving method

The method of paving the road includes a pretreatment step of removing foreign substances and dust from the work area; a primer pouring step of pouring a waterproof primer on the pre-treated work area; a first laying step of forming a first concrete layer by first laying the composition after pouring the primer; a wire mesh installation step of installing a wire mesh in order to enhance tensile properties after the first installation; a secondary installation step of forming a secondary concrete layer while impregnating the wire mesh by secondly installing the concrete composition after the wire mesh is installed; a compaction step of performing surface compaction of the second installed composition; A tinting forming step of forming a tining for slip prevention on the compacted surface; and a curing step of curing the composition after forming the tinting.

The pretreatment step is a step of forming a base concrete by laying and curing the road surface to a constant thickness using a composition after repairing the road surface.

Meanwhile, after the formation of the base concrete, the grouting and drilling steps, and the ground treatment and dust removal steps may be performed according to the design conditions.

The grouting and drilling step is a step of grouting the base concrete and forming a plurality of punch-holes at regular intervals, and the drilling holes are 4 to 8 cm in diameter using an electric core drill for collecting cores. It is formed to a depth of 4-6 cm in size and thickness, and drilled at intervals of 1 m in all directions, front, back, left and right, in the base concrete, so that the base concrete and the primary concrete layer to be described later behave in an integrated manner by the watertight megapolymer concrete.

And the background treatment and dust removal step, after the grouting and drilling step, using equipment such as a shot blasting machine, a high-pressure water jet, a roll brush, etc. so that the waterproof primer can sufficiently penetrate into the base concrete and the inside of the drilling hole foreign substances and Remove dust. In addition, the base concrete should be maintained in a sufficiently dry state.

In addition, the primer pouring step strengthens the surface of the base concrete, serves as a spherical waterproofing, and applies a penetrating waterproof primer to the vehicle in order to increase the adhesion between the base concrete and the concrete layer according to the composition. A waterproof primer layer is formed by applying it to a thickness of 0.5 mm using a spatula.

In particular, it is thoroughly applied with a roller or brush so that the permeable waterproof primer can penetrate deep into the edge of the base concrete. It is preferable that the said waterproof primer is high permeability excellent in permeability.

In addition, in the first installation step, the composition is installed so that the composition using the polymer mixed resin is poured deep inside each of the perforation holes so that it behaves integrally with the base concrete in the form of a root root. The primary concrete layer consisting of a bridge structure to form

The composition uses an on-site batch mixer or a movable truck mixer, and equipment that can be installed directly through a chute or molly on the front of the mixer is used.

In addition, in the wire mesh installation step, after the first concrete layer is formed, a high-toughness wire mesh, which is a deformable iron wire for concrete pavement, is installed.

The wire mesh is attached in close contact so that there is no space by using a fixing pin and a concrete take.

In addition, in the second installation step, after the wire mesh is installed, the composition is installed again to form a secondary concrete layer while impregnating the wire mesh.

The secondary concrete layer preferably has a thickness of 2 cm. That is, as the secondary concrete layer is formed as the wire mesh is impregnated, excellent tensile properties and durability are enhanced.

In addition, the concrete composition is first applied to the base concrete layer, a bridge-type structure is formed that allows integrated behavior with the base concrete layer through the primary concrete layer, and has high elasticity and high strength through the secondary concrete layer impregnated with wire mesh. It has excellent safety due to its double waterproof structure, a waterproofing treatment that cannot penetrate water, air, and gas, and also protects the road pavement from calcium chloride and sea chloride ions that are sprayed in winter, so that it has chemical resistance, salt damage resistance, and neutralization prevention properties. has the effect of having

In addition, while the thickness of the conventional concrete road pavement is 5 to 10 cm, the present invention shortens the construction period with a slim type with a thickness of 3 cm, and can be repaired and reinforced with a slim type road pavement with excellent economic efficiency.

In addition, the present invention has the characteristics of having high elasticity and high rigidity with a compressive strength of 79.4 MPa, a flexural strength of 38.9 MPa, a tensile strength of 17.6 MPa, and an adhesive strength of 5.0 MPa, based on the age of 1 day. It exhibits characteristics of 40 MPa, tensile strength of 20 MPa, and adhesive strength of 5.5 MPa.

In addition, the compaction step is a step of finishing with a surface after the formation of the secondary concrete layer.

At this time, the equipment for surface compaction and finishing must satisfy the following conditions.

The rear finishing equipment should be capable of raising the front side of the screed so that the concrete surface finish on the rear surface is evenly spread.

The finishing equipment should be equipped with two or more rotating rollers, an auger, and a vibrating pan of 1,500~2,000VPM so that it can be compacted.

However, the finishing equipment must be capable of moving forward and backward by its own power.

In addition, the tinting forming step is a step of forming a tinting by performing a tining operation when the formability of the surface of the secondary concrete layer is maintained after 30 to 60 minutes after the second concrete composition is installed.

At this time, in order to prevent slipping of the pavement, a groove with a depth of 3 mm or more is formed at regular intervals of 3.5 to 4 cm to have a sufficient coefficient of friction.

And after the tinting is formed, cut the joint and insert the joint material according to the design document over the entire width of the pavement for the joint type, installation location and direction. In this case, it is desirable to install the horizontal shrinkage line at an interval of 6m and the vertical joint at an interval of 3.25~4.5m, and it may vary depending on the construction site and construction conditions.

In addition, the curing step is a step of performing curing when the tinting forming step is completed. After curing, it is necessary to protect it from being adversely affected by drying, temperature change, load, impact, etc. until transportation is developed. In particular, the composition using the polymer mixture resin has excellent adhesion, so dust and foreign substances may adhere to the surface during curing. Therefore, cover the vinyl and remove the vinyl when 1 day of natural curing has elapsed and then open the traffic. In the present invention, curing is completed in one day, so construction time can be shortened, construction costs can be reduced because construction is easy, and maintenance costs can be reduced due to excellent performance. have.

The curing step of the present invention has the advantage that it can be constructed at any time within 4 seasons at -25°C to +40°C as well as in the cold season due to the characteristics of the composition using the polymer mixture resin.

On the other hand, in the above-described road paving method, after the first installation, when the wire mesh is installed and the second installation is performed, a predetermined tensile force maintaining layer may be further formed before the second installation.

In other words, in the wire mesh installation step, after the first concrete layer is formed, a high-toughness wire mesh, which is a deformed iron wire for concrete pavement, is installed, and a mixture of liquid silicone and cement powder is applied to impregnate the wire mesh and cured by applying a tensile force. A holding layer may be formed.

Thereafter, the secondary concrete layer is formed so that the wire mesh and the tensile force maintaining layer can be impregnated.

At this time, the liquid silicone and cement powder are mixed by 5 to 10 parts by weight based on 100 parts by weight of the liquid silicone by weight, and the reason for using the cement powder here is that when the silicone is hardened, the primary concrete layer and 2 This is to solve problems such as separation from the car concrete layer, stripping, or cracking. When the amount of the cement powder exceeds 10 parts by weight, the flexibility of the silicone decreases, and when the amount of the cement powder is less than 5 parts by weight, the reaction with the concrete is not good.

In addition, based on 100 parts by weight of the liquid silicone, the MTA sealer may be further mixed by 0.1 to 1 parts by weight.

Bright MTA Sealer with sealing and antibacterial properties of Dentium Co., Ltd. can be used for MTA sealer.

Accordingly, the airtightness between the separately formed primary and secondary concrete layers can be improved as well as the antibacterial properties, and the strength is improved by filling the internal air layer generated when the liquid silicone, which is the main component of the tensile force maintaining layer, is cured. This causes the shape to be maintained even when the secondary concrete layer is pressurized, so that it is effective in maintaining the tensile force of the wire mesh.

As described above, only the main points of the present invention are described, and as many designs are possible within the technical scope, the present invention is interpreted in combination with the obvious technical level of those of ordinary skill in the art rather than being limited to only the main points described above. may be limited.

Claims (10)

50 to 60% by weight of the first resin; 15 to 20% by weight of the second resin; 2 to 8 wt% of a silane coating agent; 3 to 8% by weight of a strength enhancer; In the packaging method using a composition comprising; and 10 to 25% by weight of an inorganic hollow body,
The first resin is a polyurethane-based resin,
The second resin comprises at least one selected from the group consisting of polymethyl methacrylate, methyl methacrylate, alkyd, phenol, unsaturated polyester and polyvinyl alcohol,
The silane coating agent comprises at least one silane compound selected from the group consisting of alkoxy silane, amino silane, epoxy silane, acryl silane, mercapto silane, fluorine silane, methacroxy silane, vinyl silane, chloro silane and silazane,
The strength enhancer includes at least one selected from the group consisting of calcium carbonate, calcium chloride, calcium hydroxide and gypsum,
The inorganic hollow body includes vermiculite, diatomite, kaolin, bentonite, bauxite, ball clay, perlite, attapulgite. , comprising at least one selected from the group consisting of quartz, glass bubble, silicon (silicone) and zeolite,
When the above pavement method is applied to the road,
A pre-treatment step of removing foreign substances and dust from the work area;
a primer pouring step of pouring a waterproof primer on the pre-treated work area;
a first laying step of forming a first concrete layer by first laying the composition after pouring the primer;
After the first installation, a wire mesh is installed to enhance tensile properties, and a mixture of liquid silicone, cement powder, and MTA sealer is applied to impregnate the wire mesh and cured to form a tensile force maintaining layer. ;
a secondary installation step of forming a secondary concrete layer while impregnating the wire mesh and the tensile force maintaining layer by secondly installing the composition after the wire mesh is installed;
a compaction step of performing surface compaction of the secondary laid concrete composition;
A tinting forming step of forming a tining for slip prevention on the compacted surface; and
After the formation of the tinting, a curing step of curing the composition;
The forming step is
As a step of forming vertical grooves on the road at regular intervals,
After the formation of the tinting, cutting the joint and inserting the joint material is performed,
The tensile force maintaining layer of the wire mesh installation step,
Based on 100 parts by weight of liquid silicone, 5 to 10 parts by weight of cement powder and 0.1 to 1 parts by weight of MTA sealer are mixed to form a cured mixture,
The airtightness between the separately formed primary and secondary concrete layers can be improved as well as the antibacterial properties, and the strength is improved by filling the air layer generated when the liquid silicone, which is the main component of the tensile force maintaining layer, is cured, and the secondary A construction method using a composition using a polymer mixed resin, characterized in that the shape can be maintained even when the concrete layer is pressurized, thereby having an effect in maintaining the tensile force of the wire mesh.
delete The method according to claim 1,
The inorganic hollow body is a construction method using a composition using a polymer mixed resin, characterized in that it is coated with a silane compound.
The method according to claim 1,
Based on 100 parts by weight of the composition, inorganic pigments, adhesion promoters, dispersants, surface active agents, polymerization inhibitors, waxes, impact modifiers, antibacterial agents, release agents, heat stabilizers, antioxidants, light stabilizers, colorants, stabilizers, pigments, dyes and opacity Construction method using a composition using a polymer mixed resin, characterized in that it further comprises 0.01 to 10 parts by weight of one or more additives selected from the group consisting of a topical agent.
The method according to claim 1,
Based on 100 parts by weight of the composition, 0.1 to 10 parts by weight of a curing agent and 0.01 to 1 parts by weight of a curing accelerator.
6. The method of claim 5,
A construction method using a composition using a polymer mixed resin, characterized in that the curing accelerator is an aniline-based compound or an amide-based compound.
The method according to claim 1,
With respect to 100 parts by weight of the composition, a construction method using a composition using a polymer mixed resin, characterized in that it further comprises 50 to 90 parts by weight of the granular aggregate.
delete delete The method according to claim 1,
The first concrete layer has a thickness of 1 cm, and the second concrete layer has a thickness of 2 cm. A construction method using a composition using a polymer mixed resin.