KR102257306B1 - Heat-shielding and antifouling waterproofing composition and concrete structure waterproofing paving method - Google Patents

Abstract

The purpose of the present invention is to provide a concrete structure waterproofing method using a heat-shielding and antifouling waterproofing composition. The base surface of a concrete structure is trimmed, and an adhesive is applied onto the base surface of the concrete structure. A reinforcing material is installed on the adhesive by using a reinforcing material application device. The heat-shielding and antifouling waterproofing composition is sprayed onto the reinforcing material at a certain thickness. A heat shielding paint is applied onto the heat-shielding and antifouling waterproofing composition. A water-soluble methyl methacrylate resin having elasticity, an eco-friendly waterproofing resin, and a heat-shielding paint are utilized. Thus, the composition is excellent in indoor temperature reduction, energy saving, compression, tensile, and bending strength. Also, the composition is excellent in chemical resistance, abrasion resistance, salt damage and freezing damage non-reactive flame retardant resins, and waterproofing, and low maintenance costs are ensured due to a semi-permanent lifespan. To achieve the purpose, the method according to the present invention comprises the steps of: applying an adhesive to the base surface of a concrete structure; installing a reinforcing material on the adhesive by using a reinforcing material application device; spraying a heat-shielding and antifouling waterproofing composition onto the reinforcing material; and applying a heat-shielding paint onto the heat-shielding and antifouling waterproofing composition at a certain thickness.

Description

Heat-shielding and antifouling waterproofing composition and concrete structure waterproofing paving method}

The present invention relates to a concrete structure waterproofing method using a heat-shielding and antifouling waterproofing agent composition, in particular, by arranging the base surface of the concrete structure, applying an adhesive to the base surface of the concrete structure, and using a reinforcing material application device on the adhesive. Concrete using a heat-shielding and antifouling waterproofing composition for waterproofing and insulating concrete structures by installing a reinforcing material, applying a heat-shielding and antifouling waterproofing composition on the reinforcing material to a certain thickness, and applying a heat-shielding paint on the heat-shielding and antifouling waterproofing composition. It is related to the structure waterproofing method.

In general, waterproofing work is performed to form a waterproof layer on the base surface of a concrete structure in order to prevent moisture from penetrating into the areas where moisture can be in contact, such as on the roof, floor, or underground parking lot of a building.

This type of waterproofing can be divided into roof, indoor, water tank and underground waterproofing in buildings, and especially, in the case of roof waterproofing, asphalt waterproofing, sheet waterproofing, urethane waterproofing, and rubber asphalt waterproofing have been constructed.

In the conventional waterproofing construction, a rooftop was built by adding a waterproofing solution in the process of aging concrete, or a method such as finishing using a sheet or the like after lamination using a waterproofing solution was used.

However, even with such waterproof construction, problems such as corrosion and leakage of concrete occur due to lack of maintenance after the completion of the building, and the situation is struggling to prepare countermeasures.

Leakage is the first signal of deterioration in the performance of concrete structures, and is also a major cause of inconvenience in living and using facilities.

The repair cost due to the leakage defect is 2 to 3 times the initial construction cost, but it is difficult to complete the repair of the leak, and over time, the re-leakage occurs and the trial and error that needs to be repaired is repeated, resulting in enormous cost loss. have.

The conventional waterproofing method is largely divided into an exposed waterproofing method and a non-exposed waterproofing method. Among these, the most commonly used as an exposed waterproofing method is a coating waterproofing method using a polyurethane waterproofing material having excellent elasticity and elongation, and a sheet waterproofing method using a sheet.

Specifically, the method used for the exposure waterproofing method is as follows.

First, the waterproofing method of the elastic urethane coating film

Second, the soft epoxy coating waterproofing method

Third, inorganic elastic coating waterproofing method

Fourth, rubberized asphalt coating waterproofing method

Fifth, rubberized coating waterproofing method

Sixth, there is a composite sheet waterproofing method.

First, the elastic urethane 3mm-thick coating waterproofing method is the most widely used method. It has elasticity and has excellent elongation, so even if a crack occurs in concrete, there is no crack in the waterproof layer, so it has excellent waterproofness.

However, the urethane coating waterproofing method has good waterproofing properties when a coating film having a thickness of 3 mm or more is formed, but if water is collected in the waterproofing layer of 3 mm or less, water permeates the inside due to the water permeability and breathability of the urethane. Only then can the water infiltrate problem be solved.

Second, the soft epoxy waterproofing method has good waterproofing properties, so it has excellent waterproofing properties even with a single coating, but it is not possible to waterproof outdoors due to severe aging due to ultraviolet rays, and it is widely used for waterproofing basement floors, drinking water and water tanks.

Third, the inorganic elastic coating waterproofing method is to form a coating film of about 3mm by mixing soft acrylic resin with Portland cement to perform waterproofing.

However, according to the waterproofing method, in the place where water collects, polymerization is released and reduced to acrylic acid, so a neutralization reaction with concrete occurs, and the concrete base surface is oxidized, thereby causing a problem that the coating layer adheres to the oxide layer and peels off.

Therefore, it is an unsuitable construction method for roof waterproofing.

Fourth, the rubberized asphalt coating film waterproofing method is a method of waterproofing the coating film by dissolving rubber in asphalt to make it water-soluble and then mixing cement.

However, since the rubberized asphalt coating film is easily used for aging and cracking due to exposure to ultraviolet rays and easily generating air pockets, it is a construction method that cannot be used for external exposure waterproofing even though it is used for waterproofing inside non-exposed.

Fifth, the rubberized coating waterproofing method is a material synthesized with synthetic resin by dissolving rubber in a solvent. This method is also weak against ultraviolet rays, so it was suitable for bridges or non-exposed waterproofing rather than roof waterproofing.

Sixth, the composite sheet method is a method in which rubberized asphalt sheets or synthetic rubber sheets are laid on the entire base of concrete, urethane resin is applied to the joints, and glass fibers are bonded to each other. It is widely used because it has excellent durability and can secure a waterproof layer with a uniform thickness as a whole.

However, it is difficult to perform waterproof construction in complex areas, and leaking accidents occur due to cracks as it is not possible to achieve full bonding at the joints between sheets, and if there is leakage, partial repair is difficult, and a lot of costs are incurred by removing and re-installing the entire waterproof layer. There is a problem that the mother body is corroded due to severe condensation because the waterproof layer is not attached to the floor and is floating.

In particular, the air pocket phenomenon that occurs due to moisture evaporation in concrete has a problem caused by expansion of the sealed air layer due to peeling of a pin hole or mortar in the concrete base in addition to the moisture in the concrete parent body.

In addition, since the newly built concrete has a high moisture content and the concrete itself has an alkalinity, when using a conventionally used epoxy primer or a urethane primer, there is a problem in that adhesion is poor and peeling occurs.

In other words, conventionally, there is a problem in that moisture content is high in wet concrete in the construction of exposed waterproofing on the roof of a concrete building or in winter construction, so that there is a problem of lifting, cracks, or air pockets due to poor adhesion due to moisture, and the waterproof coating is permeable to prevent oxidation or aging of the concrete structure. There is a problem that the promotion or waterproofing material has a neutralization reaction with concrete.

Registered Patent 10-1634367 Registered Patent 10-1773082 Registered Patent 10-1773799

Accordingly, the present invention was conceived to solve the above-described problems, by arranging the base surface of the concrete structure, applying an adhesive to the base surface of the concrete structure, and using a reinforcing material application device on the adhesive. By installing a reinforcing material, applying a heat-shielding and antifouling waterproofing agent composition to a certain thickness on the reinforcing material, and applying a heat-shielding paint on the heat-shielding and antifouling waterproofing composition, water-soluble methyl methacrylate resin having elasticity, eco-friendly waterproofing resin, and heat-shielding paint It is excellent in reducing indoor temperature and energy saving, has excellent compressive, tensile, and flexural strength, excellent in chemical resistance, abrasion resistance, non-reactive flame-retardant resin and waterproofing in salt and winter, and has a semi-permanent life and low maintenance cost. And it is an object to provide a concrete structure waterproofing method using the antifouling waterproofing composition.

Concrete structure waterproofing method using the heat-shielding and antifouling waterproofing agent composition according to the present invention for achieving the above object comprises: applying an adhesive to the base surface of the concrete structure; Installing a reinforcing material on the adhesive by using a reinforcing material application device; Spraying a heat-shielding and antifouling waterproofing composition on the reinforcing material; It characterized by consisting of the step of applying a heat shielding paint to a predetermined thickness on the heat shielding and antifouling waterproofing composition.

As described above, the concrete structure waterproofing method using the heat shielding and antifouling waterproofing agent composition according to the present invention is chemically non-reactive and is an eco-friendly product that is harmless to the human body, and has excellent water resistance and weather resistance, so that 100% waterproofing is expressed without curing shrinkage. , Since the base material and the waterproof layer are integrally bonded, it is possible to prevent damage due to weight and heat, and the strength and adhesion of the concrete structure are excellent, it is non-reactive to salt and winter, and the effect of heat shielding can be maximized.

1 is a perspective view showing a reinforcing material applying device according to the present invention,
Figure 2 is a side view showing a reinforcing material application device according to the present invention,
3 is an exemplary view showing a state in which a rack gear of a DC motor is meshed with a rack of a slider;
4 is a side view showing a case in which a reinforcement application device in which a storage battery and a controller are omitted is connected in front of a pushing vehicle.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

[Heat-insulating and antifouling waterproofing agent composition]

The heat-shielding and antifouling waterproofing composition according to the present invention comprises 100 parts by weight of cement, 12.5 to 50 parts by weight of fine aggregate, 0.375 to 3.75 parts by weight of a calcium alumino ferritic expanding agent, 0.0375 to 0.125 parts by weight of a powdery thickener containing an alkylarylsulfonate and an alkyl ammonium salt. Part, polycarboxylic acid water reducing agent 0.0125 to 0.075 parts by weight, silicone antifoaming agent 0.0025 to 0.025 parts by weight, polyester antifoaming agent 0.0005 to 0.025 parts by weight, aluminum powder, nitrogen gas foaming material, gas-foaming material 0.00025- 100 parts by weight of a cement mixture comprising 0.0015 parts by weight;

Based on 100 parts by weight of the cement mixture, 40 to 64% by weight of a methyl methacrylate resin, 20 to 24% by weight of a butyl acrylate resin, 1 to 3% by weight of nonyl phenol, 10 parts by weight of a heat-shielding and antifouling waterproofing composition comprising 1 to 3% by weight of a superplasticizer and 14 to 30% by weight of an additive;

Based on 100 parts by weight of the cement mixture, 25 to 30% by weight of a methyl methacrylate resin; 25 to 30% by weight of a polypropylene glycol acrylate resin; 5-10% by weight of butyl acrylate resin; 4 to 5% by weight of polyoxypropylene glycerol triether; 0.1 to 1% by weight of lithium silicate; 1 to 2% by weight of surfactant; 1 to 2% by weight of a polycarboxylic acid fluidizing agent; It is composed of 5 parts by weight of a heat-shielding paint comprising 30 to 38% by weight of water, and 5 parts by weight of a heat-shielding coating film is added and mixed with respect to 100 parts by weight of the cement mixture, but the heat-shielding coating film is polyethylene terephthalate (polyethylene terephthalate) having a certain length and width. Terephtalate; PET) film; It consists of an emulsion that is silkscreen printed on the film, and the PET film has a thickness of 125 μm, the emulsion is zinc oxide (ZnO) 40 parts by weight, white solidifying agent 30 parts by weight of 100 parts by weight of UM resin Parts, 2 parts by weight of a water reducing agent, 1 part by weight of an antifoaming agent, and 1 part by weight of a dispersant.

That is, the heat-shielding and antifouling waterproofing agent composition according to the present invention is a composition in which cement, fine aggregate, inflating agent, thickener, water reducing agent, antifoaming agent, gas foaming material, heat-shielding and antifouling waterproofing agent composition, and heat-shielding paint are mixed in a certain ratio.

Here, the cement is usually a variety of Portland cements such as crude steel, ultra-rough steel, low heat and medium heat, various mixed cements in which blast furnace slag, fly ash, or silica is mixed with these Portland cements, and limestone powder or blast furnace slow cooling slag fine powder. And eco-cement, which is an eco-friendly cement manufactured using mixed filler cement and various industrial wastes as main raw materials.

In the present invention, it is preferable to select and use portland cement or coarse steel portland cement from the viewpoint of initial strength development and material separation resistance.

In addition, the fine aggregate plays an important role in terms of reducing calorific value or dimensional change, or securing durability. Specifically, in addition to steel sand, mountain sand and sea sand, Keisa-based fine aggregate, limestone-based fine aggregate, blast furnace shredded slag-based fine aggregate , And recycled fine aggregate, etc., but are not particularly limited.

The particle size of the fine aggregate is preferably 1.2 to 3.0, and more preferably 1.5 to 2.7 in terms of the granulation rate (F.M.).

If it is less than 1.2, good fluidity may not be obtained, and if it exceeds 3.0, the non-separability will deteriorate, and there is a fear that the strength at the time of pouring may decrease.

The amount of fine aggregate is preferably 12.5 to 50 parts by weight of fine aggregate to 100 parts by weight of cement.

If it is less than 12.5 parts by weight, thermal cracking may occur when mass pouring, and if it exceeds 50 parts by weight, there is a fear that sufficient compressive strength may not be obtained.

In addition, the expanding agent is preferably one that generates ethrinzite and calcium hydroxide by a hydration reaction, and a calcium sulfoaluminate-based expanding agent, a calcium alumino ferrite-based expanding agent, a quicklime-based expanding agent, a gypsum-based expanding agent, etc. are selected. More than one type may be used, and a calcium alumino ferritic expanding agent is more preferable in terms of maintaining fluidity.

The powderiness of the expanding agent is preferably 2,000 to 8,000 cm 2 /g, and more preferably 2,500 to 6,000 cm 2 /g in terms of the brain specific area.

If it is less than 2,000㎠/g, bleeding may occur, and if it exceeds 8,000cm2/g, there is a fear that an appropriate expansion rate may not be obtained and fluidity may deteriorate.

Here, the amount of the expanding agent is preferably 0.375 to 3.75 parts by weight based on 100 parts by weight of cement.

If it is less than 0.375 parts by weight, it may be difficult to obtain an appropriate expandable property in the cured product obtained by mixing with water, and if it exceeds 3.75 parts by weight, the amount of expansion increases and the cured product may be destroyed.

In addition, the powdery thickener uses a thickener to impart non-separability, but contains an alkylaryl sulfonic acid salt and an alkyl ammonium salt.

Here, the thickener is a powdery thickener containing an alkylarylsulfonic acid salt and an alkyl ammonium salt, and when both of them are in contact with water, they associate with each other by an intermolecular interaction to form a string-shaped micelle, and the rheology-modifying effect due to its structure Is to express.

The mixing ratio of the alkylarylsulfonic acid salt and the alkyl ammonium salt is not particularly limited as long as it can form string-shaped micelles.

Usually, the range of 1/10 to 10/1 is good in the weight ratio of the alkylaryl sulfonic acid salt/alkyl ammonium salt as the active ingredient.

The amount of the powdery thickener is preferably 0.0375 to 0.125 parts by weight based on 100 parts by weight of cement.

If it is less than 0.0375 parts by weight, it may be difficult to obtain adequate non-separability, and if it exceeds 0.125 parts by weight, sufficient fluidity to have high viscosity may not be obtained, and there is a risk that the hose may be clogged or the filling property may be damaged during pump pressure delivery.

On the other hand, in the present invention, a polycarboxylic acid-based water reducing agent is used to impart fluidity.

The polycarboxylic acid water reducing agent has both a liquid and a powder form, but a powdery one is used because the cement composition is blended as a dry blend.

The use of a polycarboxylic acid water reducing agent is preferably 0.0125 to 0.075 parts by weight based on 100 parts by weight of cement.

If it is less than 0.0125 parts by weight, it may be difficult to obtain proper fluidity, and if it exceeds 0.075 parts by weight, there is a concern that a large number of bubbles may occur or the setting time may be delayed when the cement mortar is mixed with water.

Further, in the present invention, a silicone-based antifoaming agent containing dimethylcyclohexane as an active ingredient is used for the purpose of defoaming entrained air and preventing a decrease in strength resulting from air entrainment.

The form of the water reducing agent is in both liquid and powder form, but since the cement composition is blended as a dry blend, a powder form is used.

Here, the amount of the silicone-based antifoaming agent is preferably 0.0025 to 0.025 parts by weight based on 100 parts by weight of cement.

If it is less than 0.0025 parts by weight, the entrained air will not escape and the compressive strength may not be improved. Even if it is used beyond 0.025 parts by weight, there is no increase in the effect of reducing the amount of air, and the inseparability decreases, and the strength at the time of pouring decreases. There is a fear of doing it.

In addition, in the present invention, a polyether-based antifoaming agent is used for the purpose of improving the fluidity maintaining performance.

The form of the water reducing agent is in both liquid and powder form, but since the cement composition is blended as a dry blend, a powder form is used.

Here, the amount of the polyether-based antifoaming agent is preferably 0.0025 to 0.025 parts by weight based on 100 parts by weight of cement.

If it is less than 0.0025 parts by weight, the effect of improving the fluidity maintaining performance may be lost, and if it exceeds 0.025 parts by weight, the viscosity becomes small, the non-separability decreases, and there is a concern that the strength when poured is lowered.

On the other hand, in the case of using the heat-shielding and antifouling waterproofing composition in the present invention, a gas foaming material is used in order to integrate with the cement mixture or to suppress the settlement or shrinkage of the cement mixture in an uncured state.

Here, the gaseous foaming material is a material that foams nitrogen gas in an aluminum atmosphere such as scale-like aluminum powder treated with stearic acid or aluminum powder prepared by the atomizing method, an azo compound, a nitroso compound, and a hydrazine derivative, or , Sodium percarbonate, potassium percarbonate, and percarbonate, such as ammonium percarbonate, percarbonate, sodium perborate or sodium perborate or sodium percarbonate, sodium percarbonate, sodium percarbonate, percarbonate, percarbonate, sodium percarbonate, sodium percarbonate, etc. The amount of the sodium percarbonate gas foaming material is preferably 0.00025 to 0.0015 parts by weight of any of aluminum powder, nitrogen gas foaming material, and peroxidation material based on 100 parts by weight of cement.

If it is less than this range, there is a fear that settlement cannot be prevented, and if it exceeds this range, the amount of gas foaming increases, and the expansion rate of the cured product becomes too large, which may lead to a decrease in the strength of the cement mixture.

On the other hand, with respect to 100 parts by weight of the cement mixture, 10 parts by weight of a heat-shielding and antifouling waterproofing agent composition is used.

Here, the heat shielding and antifouling waterproofing composition is 40 to 64% by weight of a methyl methacrylate resin, 20 to 24% by weight of a butyl acrylate resin, 1 to 3% by weight of nonyl phenol, It consists of 1 to 3% by weight of a superplasticizer and 14 to 30% by weight of an additive.

That is, the heat-shielding and antifouling waterproofing composition is composed of a methyl methacrylate resin, a butyl acrylate resin, a nonyl phenol, a superplasticizer, and an additive.

Here, the methyl methacrylate resin is an ester of methylacrylic acid, and the methyl ester is important.

Methyl methacrylate makes methacrylic acid amide from isetongcyanhydrin and converts from methyl alcohol to ester.

Other esters are either synthesized together or obtained by transesterification from methyl methacrylate.

The methyl methacrylate resin is preferably 40 to 64% by weight based on 100% by weight of the heat-shielding and antifouling waterproofing composition.

In addition, the butyl acrylate resin is an ester of acrylic acid and butyl alcohol, and if it is not a polymer, it is called a monomer, and when they are polymerized to form a polymer, they become acrylic resins such as paints and adhesives.

Here, the butyl acrylate resin is used for the synthesis of a polymer having a softer property than methyl acrylate, and ethyl and nuclear seals are also used.

The butyl acrylate resin is preferably 20 to 24% by weight based on 100% by weight of the heat-shielding and antifouling waterproofing composition.

In addition, the surface active agent is made of EOA (ethylene oxide abduct) produced by reacting ethylene oxide with nonyl phenol as a raw material, and is widely used in dyeing and processing of textile fabrics.

Here, the surfactant is preferably 1 to 3% by weight based on 100% by weight of the heat shielding and antifouling waterproofing composition.

In addition, the superfluidizing agent includes naphthalene-based, melamine-based, lignin-based, and carboxyl-based.

Here, the naphthalene and carboxyl-based are preferably 1 to 3% by weight based on 100% by weight of the heat shielding and antifouling waterproofing composition.

On the other hand, the additive is composed of aluminum oxide (Al2O3).

The ceramic is manufactured by separating the ceramic from bauxite using a Bayer process.

In particular, the ceramic has excellent strength and a Knoop hardness of 1,950.

In addition, the ceramic uses a segregation ceramic rather than a diameter in order to increase slip resistance.

The ceramic blocks thermal energy conduction by absorbing and dissipating thermal energy.

In addition, 5 parts by weight of the heat shielding paint is used based on 100 parts by weight of the cement mixture, and 25 to 30% by weight of a methyl methacrylate resin; 25 to 30% by weight of a polypropylene glycol acrylate resin; 5-10% by weight of butyl acrylate resin; 4 to 5% by weight of polyoxypropylene glycerol triether; Lithium silicate 01 to 1% by weight; 1 to 2% by weight of surfactant; 1 to 2% by weight of a polycarboxylic acid-based fluidizing agent; It consists of 30 to 38% by weight of water.

That is, the heat shielding paint is composed of methyl methacrylate resin, polypropylene glycol acrylate resin, butyl acrylate resin, polyoxypropylene glycerol triether, lithium silicate, surfactant, polycarboxylic acid-based fluidizing agent, and water.

Here, the methyl methacrylate resin is used to impart ductility and improve viscoelasticity.

It is preferable that the content of the methyl methacrylate resin is 25 to 30% by weight.

When the content of the methyl methacrylate resin exceeds 30% by weight, ductility and viscoelasticity are improved, but the viscosity is lowered, resulting in poor workability and price competitiveness, and when the content of the methyl methacrylate is less than 25% by weight, ductility and viscoelasticity The improvement effect may be weak.

In addition, the polypropylene glycol acrylate resin is preferably used in an amount of 25 to 30% by weight in order to reduce the content of the solvent while sufficiently improving the polymerizability of the monomeric part as a kind of organic solvent.

And, the reason for limiting the content of butyl acrylate to 5 to 10% by weight is to ensure stable tensile strength of concrete.In the case of conventional concrete, the strength is 18 MPa after 28 days of age after concrete paving. It can be seen that the concrete of the present invention is 4608 MPa after 1 day, 5214 MPa after 2 days, and 5788 MPa after 3 days.

In addition, the polyoxypropylene glycerol triether has strong dispersing and emulsifying power and excellent interfacial adsorption, so that the polyurethane raw material can be easily mixed.

The polyoxypropylene glycerol triether is preferably 4 to 5% by weight, and when the polyoxypropylene glycerol triether is less than 4% by weight, it may be difficult to mix in the water-soluble resin due to its low viscosity. When the glycerol triether is greater than 5%, a large amount of air bubbles in the water-soluble resin may occur.

In addition, the lithium silicate may penetrate into the concrete concrete structure and react with calcium hydroxide to form an insoluble calcium silicate hydrate.

Lithium silicate has the effect of strengthening the structure of concrete and improving the durability of concrete concrete structures.

Here, the lithium silicate is preferably 0.1 to 1% by weight.

In addition, the reason for limiting the content of the surfactant to 1 to 2% by weight is to accelerate the hardening of concrete.

Here, as the surfactant, ethoxylated nonylphenyl is typical.

In addition, the polycarboxylic acid-based fluidizing agent secures fluidity for more than 120 minutes, applies to high-strength, high-flow concrete, solves slump flow loss, maintains a viscous slump in concrete, can be freely adjusted, provides high water-reducing power in proportion to the amount used, workability and watertightness. , Excellent finish, secured stable compressive strength, excellent workability and bleeding suppression effect when using relatively good cleaning yarn, mesh, and river yarn, improved workability and increased resistance to freezing and thawing through stable air bubble entrainment, 1~2 as an eco-friendly material It is preferable to set it as weight%.

In particular, it is preferable to use polyethylene glycol sulfonic acid ether or polyethylene glycol methacrylic acid as the polycarboxylic acid-based fluidizing agent.

In particular, the polycarboxylic acid-based fluidizing agent is used for high-density concrete, self-filling concrete, large high-rise concrete structures, and 60n/㎟ high-strength high-flow concrete.

In principle, fresh water is used for water, and 40 to 45% by weight is preferable.

In addition, the above heat shielding paint can obtain the following test results.

Thermal insulation paint Test Items unit Sample classification Result Enforcement method General reflectance (30nm∼780nm) % - 79.2 JIS K 5602: 2008 General reflectance (780 ㎚ to 2500 ㎚) % - 68.1 JIS K 5602: 2008 General reflectance (300 ㎚ ~ 2500 ㎚) % - 71.6 JIS K 5602: 2008

-Purpose: For quality control

The heat shielding paint composed of the above configuration is a water-soluble methyl methacrylate resin having elasticity, and uses eco-friendly resins and heat shielding paints, so it is excellent in reducing atmospheric temperature and energy saving, has excellent compressive, tensile, and flexural strength, and has excellent chemical resistance, It is excellent in abrasion resistance, salt damage and non-reactive flame retardant resin, and has a semi-permanent life and low maintenance cost.

On the other hand, with respect to 100 parts by weight of the cement mixture, 5 parts by weight of the heat shielding coating film are mixed, and the heat shielding coating film includes a polyethylene terephtalate (PET) film having a predetermined length and width; It consists of an emulsion that is silkscreen printed on the film, and the PET film has a thickness of 125 μm, the emulsion is zinc oxide (ZnO) 40 parts by weight, white solidifying agent 30 parts by weight of 100 parts by weight of UM resin Parts, 2 parts by weight of a water reducing agent, 1 part by weight of an antifoaming agent, and 1 part by weight of a dispersant.

That is, the heat shielding coating film according to the present invention is characterized in that an emulsion is silkscreen printed on the back surface of a polyethylene terephtalate (PET) film.

Here, the PET film has a thickness of 125 μm.

In particular, polyethylene terephtalate (PET) is one of plastic molding materials.

PET molding materials reinforced with glass fiber have good properties comparable to those of thermosetting resins, so they are used for electronic parts, automotive electronic parts, and hot air balloons, and non-reinforced molding materials are widely used for blow molding.

In addition, PET is widely used as a food container because of its high non-toxicity, odorlessness, and transparency.

Non-reinforced PET has excellent mechanical and electrical properties, chemical resistance, etc., but is weak in impact strength and heat resistance, and is difficult to mold.

However, glass fiber reinforced PET improves mechanical strength and dimensional accuracy, and at the same time, the heat resistance is remarkably improved by the glass fiber reinforcement, and the heat deflection temperature is quite high as about 240°C.

In order to obtain the original heat resistance of reinforced PET, the important point is to sufficiently crystallize the molded product.

In this way, heating and cooling have been performed after high-temperature molding or molding at a mold temperature (130-140°C) at which PET crystallizes.

However, recently, as a result of technological innovation, the mold temperature of around 70℃ is determined, and low-temperature mold products, which do not require heating and cooling after molding, have been developed and are receiving favorable reviews in the market.

However, the low-temperature molding method has disadvantages such as an increase in cost due to a change in the material of PET, and deterioration of the properties of the molded product by low-temperature molding, so that the high-temperature molding method is also used in parallel.

In terms of the characteristics, heat resistance is 265℃ for melting point, 240℃ for heat deformation, and 150℃ for continuous heat resistance.

The electrical characteristics of general PET products are the same as other polyesters, but special PET products are resistant to electric arcs and cracks.

It has good chemical resistance, dimensional stability and weather resistance, and has excellent stress cracking properties.

The polyethylene terephtalate (PET) is a saturated polyester obtained by polycondensation of terephtal and ethylene glycol.

PET has a shorter molecular ring length than polybuthylene terephtalate and has a structure that does not bend well, so it has good stiffness and heat resistance, but because it accelerates the crystallization rate, the molding temperature needs to be set to 110°C or higher.

In addition, there is a method of adding sodium carboxylic acid salt or potassium salt below 100°C, and a method of promoting crystallization by adding an aliphatic organic ester as a plasticizer.

Unreinforced PET is mainly used as a glass fiber reinforcement because of its problems in moldability, impact resistance, and aging resistance.

The consumption of unreinforced PET is rapidly increasing due to the recent development of stretch suction technology.

Since PET is difficult to crystallize as it is because it is different from PBT, it is not used only as PET itself as a molding material, but is basically added with a glass content of about 30%, and the glass content is higher for high rigidity and low shrinkage.

In addition, mica is also used in combination to prevent warpage and minimize the difference in physical properties due to the flow direction of the polymer.

There are two main methods of making PET.

One is by dimethyl terephthalic acid and the other is by direct polymerization.

In the dimethyl terephthalic acid method, Bis(β-Hydroxy Ethly)Terephthalate is obtained through transesterification by heating Dimethyl Terephthalate and Ethylene Glycol at 150~230℃.

Then, when Bis(β-Hydroxy Ethly)Terephthalate is 1 Torr or less and heated to 270~300℃, polycondensation proceeds and ethylene glycol flows out to obtain PET.

In the direct polymerization method, high purity Terephthalic acid and Ethylene Glycol are pressurized and reacted at about 230°C to obtain Bis(β-Hydroxy Ethyl)Terephthalate. The polycondensation reaction is in the same form as the Terephthalic acid Dimethyl method.

Meanwhile, the emulsion is composed of 100 parts by weight of the UM resin, 40 parts by weight of zinc oxide, 30 parts by weight of a white solidifying agent (hardening agent), 2 parts by weight of a water reducing agent, 1 part by weight of a defoamer, and 1 part by weight of a dispersant.

Here, the UM resin is a binder resin made of a urethane acrylate resin as a first binder resin and a polymethyl methacrylate resin as a second binder resin; It consists of a white solidifying agent (hardening agent).

That is, the UM resin is composed of a binder resin and a white solidifying agent (curing agent).

Here, the binder resin is made of a urethane acrylate resin as the first binder resin and a polymethyl methacrylate resin as the second binder resin.

The urethane acrylate resin, which is the first binder resin, imparts durability to the soil grout material and at the same time may firmly bond the earth particles to each other.

The urethane acrylate resin is a hybrid resin having both the characteristics of urethane and acrylate.

These urethane acrylate resins are generally prepared by polymerization of a urethane prepolymer and a hydroxyalkyl acrylate.

The urethane prepolymer is formed by a polymerization reaction of polyol and isocyanate, and the types of the urethane prepolymer are various.

In addition, examples of the hydroxy alkyl acrylate include methyl methacrylate, 2-hydroxy ethylmethacrylate, and n-butyl acrylate.

It is appropriate that the content of the binder resin including the urethane acrylate resin and the polymethyl methacrylate resin is in the range of about 20 to 60 parts by weight based on 100 parts by weight of the UM resin.

In the UM resin described above, in addition to the urethane acrylate resin, which is the first binder resin described above, a polymethyl methacrylate resin may be added as the second binder resin.

At this time, the mixing ratio of the urethane acrylate resin as the first binder resin and the polymethyl methacrylate resin as the second binder resin is preferably used in a weight ratio of about 10 to 60: 90 to 40, but is not limited thereto.

By mixing and using polymethyl methacrylate with urethane acrylate, the strength of the improved body made of UM resin can be further increased.

In addition, in the UM resin, in addition to urethane acrylate resin and polymethyl methacrylate resin, hydroxyl ethyl methacrylate (HEMA) resin is additionally used as a third binder resin to reinforce the strength of the improved product. I can.

In addition, in the UM resin, a white solidifying agent (curing agent) may be used in order to make the urethane acrylate resin have a three-dimensional network structure, and the curing time of the urethane acrylate resin may be adjusted.

The white solidifying agent (curing agent) includes an organic peroxide such as benzoyl peroxide (BPO), but is not limited thereto.

In particular, the benzoyl peroxide not only facilitates curing of the urethane acrylate resin, but also thermally decomposes in a solvent to generate phenyl radicals and benzoate radicals to initiate polymerization of the urethane acrylate resin.

The content of the white solidifying agent (hardening agent) is adjusted according to the ambient temperature and the surface temperature. For example, it is preferable to mix a large amount in winter and a small amount in summer.

In consideration of this point, it is appropriate that the content of the white solidifying agent (curing agent) is about 30 parts by weight based on 100 parts by weight of the UM resin.

If the content of the white solidifying agent (curing agent) is less than 30 parts by weight, curing may not occur properly, and if the content of the white solidifying agent (curing agent) is more than 30 parts by weight, the physical properties of the formed improved body will be reduced. I can.

On the other hand, the zinc oxide (ZnO) is a compound of oxygen and zinc, and has a melting point of 1,975°C (pressurized), 1,720°C (normal pressure), and a specific gravity of 5.47 (amorphous) and 5.78 (crystalline) as a light white powder.

It turns yellow when heated to about 300℃, but becomes its original color when cooled.

It is an amphoteric oxide that is hardly soluble in water, but soluble in dilute acids and concentrated alkalis.

The particles are fine, and the covering power is lower than that of light white, but it is not toxic.

Most preferably, the zinc oxide (ZnO) contains 40 parts by weight based on 100 parts by weight of the UM resin.

On the other hand, the water reducing agent is a naphthalene-based high-performance water reducing agent, and preferably contains 2 parts by weight based on 100 parts by weight of the UM resin.

The antifoaming agent is a chemical used to remove harmful air bubbles, an oily substance having low volatility and high diffusion power, or a water-soluble surfactant, and preferably contains 1 part by weight based on 100 parts by weight of the UM resin.

In addition, the dispersant is a substance added to prevent agglomeration of microparticles generated when making smaller particles and colloidal particles by pulverizing large particles and agglomerated particles, and the peptizer is mainly 1 weight per 100 parts by weight of the UM resin. It is preferred to contain parts.

[Reinforcing material application device]

1 is a perspective view showing a reinforcing material applying device according to the present invention, Figure 2 is a side view showing a reinforcing material applying device according to the present invention, Figure 3 is a state in which the rack gear of the DC motor is meshed with the rack of the slider 4 is a side view illustrating a case in which a reinforcement application device in which a storage battery and a controller are omitted is connected to the front of a pushing vehicle.

As shown in these drawings, the reinforcing material application device (A) according to the present invention pushes the reinforcement material (G) over the mount (5) in the axle direction, and the reinforcement material (G) is released by a fine force so that it is applied on the reinforced concrete. A reinforcing material application device, comprising: a rack gear-mounted DC motor (2) forcing the mount 5 to move to the left or right of the reinforcing material application direction to correct the application direction of the reinforcing material (G); A storage battery 3 for supplying electricity to the DC motor 2; A table (1) on which a controller (4) for changing the rotation direction of the DC motor (2) is mounted; A horizontal dovetail 9 attached to the front end of the table 1; A slider 6 suspended from the mount 5 to slide along the dovetail 9 to the left or right; A rack (8) attached to the bottom of the mount (5); It consists of a manipulator 20 for external control of the DC motor 2.

As shown in Fig. 13, the reinforcing material application apparatus A according to the present invention includes a DC motor 2, a storage battery 3, and a controller 4 on a table 1, as shown in FIG.

Here, the DC motor 2 is of a reversible type, and drives the mount 5 to the left or to the right by driving in the forward direction (right) or in the reverse direction (left) according to the rotation direction selection signal of the rotor delivered through the controller 4. .

As is more evident through the enlarged portion of FIG. 15, a rack gear 7 is mounted on the motor shaft end of the DC motor 2.

In addition, a horizontal rack 8 is attached to the bottom surface of the mount 5 and meshes with the rack gear 7.

When the rack gear 7 turns right, the mount 5 goes right, and when the rack gear 7 turns left, the mount 5 goes left.

Assuming that the controller 4 is a built-in wireless signal receiver, the manipulator 20 is a remote controller or a joystick.

Reference numeral 13 denotes a height adjusting means for the roller 12 that presses the grid to the lower part of the ground surface.

As shown in FIG. 14, a horizontal dovetail 9 is installed at the front end of the table 1, and the slider 6 is coupled to move left or right while riding the dovetail 9.

In addition, a connector 11 is attached to the rear end of the table 1 to connect a horn (not shown) attached to the front end of the vehicle, and a bolt 14 for locking the horn inserted therein is attached to the connector 11 ) Is also installed.

As shown in Figure 15, after inserting the horn (not shown) attached to the front end of the vehicle (C) to the connection pipe (11) and locking it with a bolt (14), the reinforcement material ( Put G) on it, and apply the reinforcing material (G) by pushing it in the direction of the arrow (D) on the lower part of the base surface where the base surface is arranged.

Since the driver of the vehicle (C) runs while looking ahead, it is easy to visually check the application state of the reinforcement material (G).

The reinforcing material G is released from the force that is pushed by the reinforcing material applying device A according to the present invention and applied on the lower part of the base surface.

In the meantime, when the reinforcing material G is out of its position due to a variable, the driver of the vehicle C controls the controller 4 with the manipulator 20 to switch the driving direction of the DC motor 2.

For example, when the reinforcing material (G) is tilted to the left, the DC motor (2) is driven to the right by moving the DC motor (2) as much as the width of the reinforcement material (G) is shifted to the right. In this case, the application direction of the grid G is corrected by operating the DC motor 2 reversely as much as the width of the reinforcing material G deviated from the path and moving the mount 5 to the left.

The reinforcing material application device (A) according to the present invention having the configuration as described above is to change to a traction type when it is possible to accurately check the application status of the reinforcement material (G) proceeding from the rear of the towing vehicle through the rearview mirror, the controller Controlling by wire, changing the pushing vehicle to a self-propelled vehicle, etc., and adding additional items that are judged to be able to easily add and implement from the present invention to anyone engaged in the same field are also included in the technical scope of the present invention. Belongs.

Further, it includes applying an adhesive to the reinforcing material (G) formed by placing the nonwoven fabric on the mount and applying the nonwoven fabric to the nonwoven fabric.

Hereinafter, the waterproofing of the heat-shielding concrete structure according to the present invention having the configuration as described above will be described.

Concrete structure waterproofing method using the heat-shielding and antifouling waterproofing composition according to the present invention comprises the steps of applying an adhesive to the base surface of the concrete structure; Installing a reinforcing material on the adhesive by using a reinforcing material application device; Spraying a heat-shielding and antifouling waterproofing composition on the reinforcing material; It consists of applying a heat shielding paint to a predetermined thickness on the heat shielding and antifouling waterproofing composition.

That is, the concrete structure waterproofing method according to the present invention consists of an adhesive application step, a reinforcing material installation step, a heat shielding waterproofing agent spraying step, and a heat shielding paint application step.

Here, the adhesive application step is to apply the adhesive to the base surface of the concrete structure, the adhesive is composed of a urethane-based adhesive.

The main component of the urethane adhesive is a urethane prepolymer synthesized from polyol and polyisocyanate, and a curing catalyst is used to control moisture curability.

In addition, powders such as carbon black, calcium carbonate, and finely powdered silica are used as the strength enhancing and increasing agent.

Since the urethane prepolymer has a urethane group in its molecule, its viscosity tends to increase, and a plasticizer or solvent is used to decrease the viscosity.

The synthesis of the urethane prepolymer is set to have a terminal isocyanate group, and the isocyanate group reacts with water to cure.

In addition, if there are many trifunctional urethane prepolymers, the strength of the adhesive increases, and if there are many bifunctional urethane prepolymers, an adhesive with rich flexibility is possible.

Strength and elasticity can be adjusted by the ratio of the bifunctional and trifunctional urethane prepolymer.

Subsequently, in the step of installing the reinforcing material, a double-sided sand sheet or a reinforcing material is installed on the adhesive using a reinforcing material application device.

Here, the double-sided sandsheet includes a substrate made of any one of a nonwoven fabric, a glass fiber, and a polypropylene woven fabric; An adhesive upper and lower compound layer formed on the upper and lower portions of the substrate, and mainly composed of improved asphalt; An upper release paper attached so as to be detachably attached to a predetermined width from one end of the upper surface of the upper compound layer toward the other side; It is formed from the other end of the upper release paper attached to the upper surface of the upper compound layer to the other end of the upper compound layer, and is impregnated in the upper compound layer and protrudes upward so that the average particle diameter is 400 to 400 per 1 m2. An upper silica sand layer formed by spraying in an amount of 500 g/m2; A lower release paper attached so as to be detachably attached to a predetermined width from the other end of the lower surface of the lower compound layer toward one side; It is formed from one end of the lower release paper attached to the lower surface of the lower compound layer to the one end of the lower compound layer, and is impregnated into the lower compound layer and protrudes downward from 400 to 400 per square meter of silica sand having an average particle diameter of 100 to 2000 µm. It is composed of a lower silica sand layer formed by spraying in an amount of 500 g/m2.

That is, the double-sided sandsheet includes a substrate, and any one of the upper and lower compound layers formed on the upper and lower surfaces of the substrate, and upper and lower silica sand layers formed on the upper and lower compound layers, and the upper and lower silica sand layers. It is composed of upper and lower release papers attached to it.

Here, the substrate is typically made of any one of nonwoven fabric, glass fiber, and polypropylene woven fabric.

In addition, the upper and lower compound layers formed on the upper and lower portions of the substrate are adhesive waterproofing materials mainly made of improved asphalt.

It is preferable that an upper release paper is attached to the upper compound layer from one end of the upper surface toward the other side to a certain width, and the upper release paper has a width of about 10 cm.

Further, from the other end of the upper release paper to the other end of the upper surface of the upper compound layer, silica sand having an average particle diameter of 100 to 2000 μm is sprayed in an amount of 400 to 500 g/m 2 per 1 m 2 to form an upper silica sand layer.

In addition, it is preferable that the lower release paper is attached to the lower compound layer from the other end of the lower surface toward one side to a certain width, and the lower release paper has a width of about 10 cm.

And, from one end of the lower release paper to the lower end of the lower compound layer, like the upper silica sand layer formed on the upper compound layer, silica sand having an average particle diameter of 100 to 2000 μm is sprayed in an amount of 400 to 500 g/m 2 per 1 m A layer of silica is formed.

The upper silica sand layer and the lower silica sand layer function to improve the strength of the upper compound layer and the lower compound layer.

In addition, the double-sided sandsheet is not only firmly attached to the adhesive base surface, but also gives weight, and prevents slipping between interfaces.

The silica sand used in the upper and lower silica sand layers is sand composed of grains of quartz, and natural or artificial silica sand may be used, and the average particle diameter is preferably 100 to 2000 μm, and 400 to 500 per 1 m². It is preferable to spray in an amount of g/m2.

When the average particle diameter exceeds 2000 μm, the outer surface of the upper and lower compound layers is not smoothly formed, and when the average particle diameter is less than 100 μm, the anti-slip effect may be insignificant.

Double-sided sand sheet CAS# Component Percent 8052-42-4 Asphalt 55.0~72.0 471-34-1 Calcium carbonate 5.0-20.0 9003-55-8 Styrene Butadiene 7.0~15.0 14808-60-7 Crystalline silica 0~13.0 None assigned Non-woven polyester 5.0~10.0

Double-sided sand sheet quality standards
Test Items

Quality standards
Test Methods
Seal
Performance
Tensile strength (N/mm)
Length
8.0 or higher



KSF 4917
(2017)
Tensile strength (N/mm)
Width
Elongation (%)
Length
15 or more
Elongation (%)
Width
Tear performance (N)
Length
20 or more
Width
Low temperature bending performance (-10℃)
Base side
No balance
Back side

Equipment quality standards
Test Items

Quality standards
Remark
Material and weight

Polyester non-woven 100G or more
The tensile strength
(N/mm)

Length
5.0 or higher
Width
Elongation (%)
Length
15 or more
Width
Tear performance (N)
Length
20 or more
Width

Another type of reinforcing material, a reinforcing material, is a fiber made of a mixture of at least one or more of glass fiber, carbon fiber, aramid fiber, basalt fiber, fiber-reinforced plastic, and PET (polyethylene terephthalate) fiber as warp and weft yarns and woven into a grid. will be.

That is, the reinforcing material is applied on the adhesive and acts effectively on the vertical or lateral load and the composite load acting on the asphalt pavement, thereby improving the durability of the asphalt pavement and reinforcing the adhesion between the base surface and the asphalt concrete. .

In addition, the reinforcing material is a mesh form, which is a grid network in the form of a mesh that is penetrated up and down so that good bonding between the aggregate, which is a heated asphalt mixture, and asphalt binder (asphalt), etc., are placed on the ground surface. It is woven to improve durability.

The reinforcing material is woven by mixing glass fibers and carbon fibers.

Of course, the present invention is not limited thereto, and glass fibers or carbon fibers (including carbon fiber reinforced plastics) may be woven alone and used as a reinforcing material.

The glass fiber is a long fiber wound by drawing molten glass at high speed, which is basically divided into yarn and roving, and a fiber yarn in which 100 to 4,000 filaments are connected with a binder after melting the raw material at about 1,600°C. Use.

The glass fiber manufacturing method may be manufactured and used in the same manner as in the prior art.

In addition, the glass fiber contains 0-2% by weight of E-glass or ECR glass as a main raw material, urethane or epoxy as a binder, and is formed to have a diameter of 10 to 34 μm.

These glass fibers have a heat resistance temperature of 300 ~ 550 ℃, a softening temperature of 840 ~ 850 ℃, 2,500 ~ 3,500 ㎫, specific gravity 249 ~ 257 characteristics.

The carbon fiber refers to a fiber-length carbon material composed of 92% or more carbon, and is classified into a pan (PAN) system, a pitch system, and a rayon system according to a manufacturing method and raw material.

The fan-based carbon fiber is mainly used for aerospace, is the most economical precursor, and is manufactured into fine fibers through a wet, dry, or melt spinning method depending on the purpose.

The pitch-based carbon fiber is a general-purpose fiber for sports and industry, and unlike other fibers, a fiber having a low-physical pitch fiber obtained by direct melt spinning of pitch, a low-cost carbon-based material obtained from coal tar and petroleum residues, as a precursor. to be.

It is widely used commercially due to its low cost and ease of structural control.

The rayon-based carbon fiber basically refers to a carbon fiber made of a rayon fiber obtained by reprocessing cellulose into rayon as a precursor.

In addition, the carbon fiber includes carbon fiber reinforced plastic (CFRP) in which carbon fiber is used as a reinforcement material and a matrix structure is used as plastic.

The reinforcing material forms one bundle of warp yarns to which the fiber aggregates are bonded, arranged in parallel, and arranges in a grid shape at regular intervals by contacting the bundled warp yarns in two or three or more rows. It is made by combining separately arranged warp yarns by a knitting method.

That is, the reinforcing material forms one bundle by arranging a plurality of warp threads to which a plurality of fiber aggregates are bonded in a 4 to 7 layer structure in contact with each other, and the central axis spacing of the bundle is 216 to 292 (mm). The reinforcement of the double row is formed by overlapping the grid net in 2 to 3 rows, i.e., double rows, and then fixing the edges of the bundled grid net of the double row by a knitting method with a bundle blade.

In addition, the reinforcing material is composed of a horizontal line and a vertical line, and a fixed line fixing the same.

In addition, the horizontal line is positioned in a plurality at a predetermined interval in the longitudinal direction of the base surface, that is, the direction in which the vehicle travels, and is made of glass fiber or reinforced glass fiber.

In addition, the vertical lines are configured to cross a plurality of horizontal lines in a vertical direction to provide a fixing force to the horizontal lines, have a predetermined interval, are configured in plural, and are made of carbon fiber or carbon fiber reinforced plastic.

The material of the horizontal line and the vertical line may be substituted or may be used in any one, and also, glass fiber and carbon fiber may be mixed in each of the horizontal and vertical lines.

In addition, the horizontal and vertical lines are formed by forming a plurality of warp yarns into one bundle, and then configuring the bundles again in plurality.

The fixing line is a means for exerting a fixing force as the horizontal and vertical lines are woven so as to be fixed to each other at the intersection of the horizontal and vertical lines.

In this case, the fixing line is formed of a warp yarn made of glass fiber or carbon fiber.

Any warp thread capable of stably fixing the horizontal and vertical lines may be used.

Subsequently, in the step of spraying the heat shielding waterproofing agent, 100 parts by weight of cement, 12.5 to 50 parts by weight of fine aggregate, 0.375 to 3.75 parts by weight of a calcium alumino ferritic expanding agent, an alkylarylsulfonate and an alkyl ammonium salt are contained on the concrete structure in which the reinforcing material is installed. Powdered thickener 0.0375 to 0.125 parts by weight, polycarboxylic acid water reducing agent 0.0125 to 0.075 parts by weight, silicone antifoaming agent 0.0025 to 0.025 parts by weight, polyester antifoaming agent 0.0005 to 0.025 parts by weight, aluminum powder, nitrogen gas foaming material, peroxidation material 100 parts by weight of a cement mixture comprising 0.00025 to 0.0015 parts by weight of a gas-foaming material;

Based on 100 parts by weight of the cement mixture, 40 to 64% by weight of a methyl methacrylate resin, 20 to 24% by weight of a butyl acrylate resin, 1 to 3% by weight of nonyl phenol, 10 parts by weight of a heat-shielding and antifouling waterproofing composition comprising 1 to 3% by weight of a superplasticizer and 14 to 30% by weight of an additive;

Based on 100 parts by weight of the cement mixture, 25 to 30% by weight of a methyl methacrylate resin; 25 to 30% by weight of a polypropylene glycol acrylate resin; 5-10% by weight of butyl acrylate resin; 4 to 5% by weight of polyoxypropylene glycerol triether; 0.1 to 1% by weight of lithium silicate; 1 to 2% by weight of surfactant; 1 to 2% by weight of a polycarboxylic acid fluidizing agent; It is composed of 5 parts by weight of a heat-shielding paint comprising 30 to 38% by weight of water, and 5 parts by weight of a heat-shielding coating film is added and mixed with respect to 100 parts by weight of the cement mixture, but the heat-shielding coating film is polyethylene terephthalate (polyethylene terephthalate) having a certain length and width. Terephtalate; PET) film; It consists of an emulsion that is silkscreen printed on the film, and the PET film has a thickness of 125 μm, the emulsion is zinc oxide (ZnO) 40 parts by weight, white solidifying agent 30 parts by weight to 100 parts by weight of UM resin A heat-shielding and antifouling waterproofing composition composed of 2 parts by weight of a water reducing agent, 1 part by weight of an antifoaming agent, and 1 part by weight of a dispersant is applied to a predetermined thickness.

Subsequently, on the heat-shielding and antifouling waterproofing composition, 25 to 30% by weight of a methyl methacrylate resin; 25 to 30% by weight of a polypropylene glycol acrylate resin; 5-10% by weight of butyl acrylate resin; 4 to 5% by weight of polyoxypropylene glycerol triether; 0.1 to 1% by weight of lithium silicate; 1 to 2% by weight of surfactant; 1 to 2% by weight of a polycarboxylic acid fluidizing agent; A heat shielding paint composed of 30 to 38% by weight of water is applied to a certain thickness.

The concrete structure waterproofing method according to the present invention consisting of the steps as described above arranges the base surface of the concrete structure, applies an adhesive to the base surface of the concrete structure, and installs a reinforcing material using a reinforcing material application device on the adhesive. And, by applying a heat-shielding and antifouling waterproofing composition on the reinforcing material to a certain thickness, and applying a heat-shielding paint on the heat-shielding and antifouling waterproofing composition, a water-soluble methyl methacrylate resin having elasticity, an eco-friendly waterproofing resin, and a heat shielding paint are used. It is excellent in reducing indoor temperature and energy, has excellent compressive, tensile, and flexural strength, excellent in chemical resistance, abrasion resistance, non-reactive flame-retardant resin and waterproofing in salt and winter, and has a semi-permanent life and low maintenance cost.

The preferred embodiments described in the detailed description of the present invention are illustrative and not limiting, and the scope of the present invention is indicated by the appended claims, and all modifications falling within the meaning of the claims are in accordance with the present invention. It is included.

1: Table 2: DC motor
3: storage battery 4: controller
5: mount 6: slider
7: rack gear 8: rack
11: connector 14: volt
20: manipulator

Claims (8)

delete delete delete delete Arranging the base surface of the concrete structure;
Applying an adhesive to the base surface;
Installing a reinforcing material on the adhesive by using a reinforcing material application device;
Spraying a heat-shielding and antifouling waterproofing composition on the reinforcing material;
It consists in the step of applying a heat shielding paint to a predetermined thickness on the heat shielding and antifouling waterproofing composition, the reinforcing material is composed of a double-sided sand sheet,
The heat-shielding and antifouling waterproofing composition comprises 100 parts by weight of crude steel Portland cement, 12.5 to 50 parts by weight of fine aggregate, 0.375 to 3.75 parts by weight of a calcium alumino ferritic expanding agent, 0.0375 to 0.125 parts by weight of a powdery thickener containing an alkylarylsulfonate and an alkyl ammonium salt , Polycarboxylic acid water reducing agent 0.0125 to 0.075 parts by weight, silicone antifoaming agent 0.0025 to 0.025 parts by weight, polyester antifoaming agent 0.0005 to 0.025 parts by weight, aluminum powder, nitrogen gas foaming material, gas foaming material 0.00025 to 0.0015 consisting of any one of peroxidation material 100 parts by weight of a crude steel Portland cement mixture consisting of parts by weight;
Based on 100 parts by weight of the crude steel Portland cement mixture, 40 to 64 wt% of methyl methacrylate resin, 20 to 24 wt% of butyl acrylate resin, and 1 to 3 wt% of Nonyl phenol %, 10 parts by weight of a heat-shielding and antifouling waterproofing composition comprising 1 to 3% by weight of a superplasticizer and 14 to 30% by weight of an additive;
Based on 100 parts by weight of the crude steel Portland cement mixture, 25 to 30% by weight of a methyl methacrylate resin; 25 to 30% by weight of a polypropylene glycol acrylate resin; 5-10% by weight of butyl acrylate resin; 4 to 5% by weight of polyoxypropylene glycerol triether; 0.1 to 1% by weight of lithium silicate; 1 to 2% by weight of surfactant; 1 to 2% by weight of a polycarboxylic acid fluidizing agent; It consists of 5 parts by weight of a heat shielding paint comprising 30 to 38% by weight of water, and 5 parts by weight of a heat shielding coating film is added and mixed with respect to 100 parts by weight of the crude steel Portland cement mixture, and the heat shielding coating film is polyethylene terephthalate having a certain length and width. (Polyethylene Terephtalate; PET) film; It consists of an emulsion that is silkscreen printed on the film, and the PET film has a thickness of 125 μm, the emulsion is zinc oxide (ZnO) 40 parts by weight, white solidifying agent 30 parts by weight to 100 parts by weight of UM resin It consists of 2 parts by weight of a water reducing agent, 1 part by weight of a defoamer, and 1 part by weight of a dispersant, and the surface active agent is EOA (ethylene oxide) produced by reacting ethylene oxide with nonyl phenol. abduct) as a raw material, and the heat shielding paint is 25 to 30% by weight of a methyl methacrylate resin; 25 to 30% by weight of a polypropylene glycol acrylate resin; 5-10% by weight of butyl acrylate resin; 4 to 5% by weight of polyoxypropylene glycerol triether; 0.1 to 1% by weight of lithium silicate; 1 to 2% by weight of surfactant; 1 to 2% by weight of a polycarboxylic acid fluidizing agent; Concrete structure waterproofing method using a heat-shielding and antifouling waterproofing composition, characterized in that consisting of 30 to 38% by weight of water. delete delete delete

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