KR101034560B1 - A complex waterproofing method to concrete constructions - Google Patents

Abstract

PURPOSE: A complex waterproof constructing method for a concrete structure is provided to prevent the adhesion failure between waterproofing layers by forming a silicon emulsion waterproofing layer and water-soluble epoxy composition waterproofing layer. CONSTITUTION: Silane compound and silicon emulsion including colloidal silica, emulsifier, alcohol, and water are applied on a target layer(50). A silicon emulsion waterproofing layer(52) is obtained. An epoxy and an epoxy composition including hardener, siliceous powder, and water are applied to the silicon emulsion waterproofing layer. A water-soluble epoxy composition waterproofing layer(60) is obtained.

Description

Composite waterproof construction method of concrete structure {A COMPLEX WATERPROOFING METHOD TO CONCRETE CONSTRUCTIONS}

The present invention provides a first waterproofing layer which forms a waterproofing layer with a silicone emulsion on the skin layer of the waterproof layer of a concrete or mortar structure, and concrete or mortar having a mixture of a water-soluble epoxy and siliceous powder as a second waterproofing layer as a coating waterproofing layer thereon. It relates to a waterproof construction method, and more specifically, a waterproofing layer inside the skin of the waterproof layer, which is a concrete surface such as a basement layer, a rooftop, a veranda, a bathroom, a swimming pool, a water purification plant, a water tank reservoir, a wastewater treatment plant, a bridge, etc. of a concrete structure. The present invention relates to a method of waterproofing concrete or mortar structures forming and forming a coating waterproof layer of a water-soluble epoxy composition thereon.

In general, the surface of the base surface, which is the waterproof layer of concrete, is not only difficult to ground due to the material separation, cracking site, leakage site, cold joint, form tie hole, and pumbo site, etc. Due to these causes, when water leaks from any part of the inside of the waterproof layer, water flows through the entire surface layer of the waterproof layer, such as epoxy, urethane and urea waterproof layers, sheet waterproof layers, cement liquid waterproof layers, rubber asphalt waterproof layers, and penetration waterproof layers. Often causes the cause of the defect.

In particular, concrete structures such as water purification plants, drainage basins, underground reservoirs, sewage treatment plants, and wastewater treatment plants may be contacted with water during the year to neutralize the waterproofing layer, to lift the waterproofing layer due to inflow of residual moisture or moisture from the ground surface. It can also cause waterproofing in various forms such as corrosion.

The waterproofing method of the waterproof layer of concrete or mortar can be generally classified into dry method and wet method.

The dry method is a method of applying epoxy, urethane, sheet, asphalt, etc., using solvent as a solvent to the surface of concrete or mortar. Inferior adhesion of the mortar surface and the waterproofing layer causes the waterproofing layer to be lifted and peeled off, and has a weak durability, so that the construction may be easily corroded and aged.

In addition, the wet method includes waterproofing cement liquid, waterproofing of mortar, waterproofing of water-soluble resin or rubber-based emulsion coating film, but it has a lot of poor adhesion at the interface after construction, and due to the index defect of the waterproof layer, waterways at the surface of the waterproof layer and the waterproof layer interface. Has a disadvantage of rapidly corroding the water-proof layer as the water moves through the interface, and it is difficult to find the source of the leak, and the repair and construction also has a very difficult disadvantage.

In particular, as the concentration of acid rain (pH) increases, the degree of neutralization and corrosion of concrete or mortar structures rapidly deepens, causing defects in waterproofing, which has been researched and developed at various angles as a prevention method, but has not found a fundamental solution. .

The present invention is to solve the conventional problems in the waterproofing of concrete or mortar structure, the object of the composition is composed of an environmentally friendly water-soluble waterproofing agent to prevent environmental pollution, while easy construction, the water content at the interface between the waterproof layer and the waterproof layer 5 It keeps it within% to improve the waterproofing performance and durability life along with prevention of corrosion and aging of the waterproof layer, and excellent chemical resistance against acid rain, acid and alkali (pH 3.5 ~ 12) by the first waterproofing layer and the second waterproofing layer. It is to provide a waterproof construction method to improve. In addition, the present invention can be installed to have an excellent waterproof performance even if the waterproof layer is not smooth, in addition to the Laura or waterproof ratio, it is possible to be installed by spray, airless equipment, but also the advantage of precise construction is possible to reach out of reach It is to provide a composite waterproof construction method of the concrete structure.

In order to solve the above problems,

The present invention is a silicone comprising 2 to 20 parts by weight of colloidal silica, 2 to 40 parts by weight of emulsifier, 10 to 150 parts by weight of alcohol and 300 to 400 parts by weight of water based on 100 parts by weight of the silane compound represented by Formula 1 below. Provided a waterproof construction method characterized in that the emulsion is applied to the waterproof layer to form a silicone emulsion waterproof layer (first waterproof layer):

[Formula 1]

R _n -Si- (R ') _4-n

(In the general formula 1, the molecular weight of the monomer is 150 to 450, R is a hydrocarbon group having 2 to 17 carbon atoms, R 'is a hydrolyzable group, and n is 1 or 2.)

The silane compound is ethyltriethoxysilane, ethyltrimethoxysilane, ethyltri-n-propoxysilane, isobutyltriethoxysilane, isobutyltrimethoxysilane, isobutyltriacetoxysilane, n-hexyltrimeth Methoxysilane, vinyltriethoxysilane, phenyltrimethoxysilane, octyltriethoxysilane, octylmethyldiisopropoxysilane, lauryltrimethoxysilane, 2-ethylhexyltrimethoxysilane, octyltriethoxysilane At least one selected from the group consisting of dodecyltribromosilane, tetradecyltrimethoxysilane, hexadecyltriethoxysilane, octadecyltriethoxysilane, dimers thereof, trimers thereof and oligomers thereof. desirable.

The colloidal silica is preferably a silica sol having a pH of 8 to 11 and a content of SiO ₂ of 20 wt% or less.

The emulsifier is polyoxypropylene manitol dioleate, polyoxyethylene sorbitol oleate, polyoxyethylene monooleate, polyoxyethylene stearate, sorbitan monostearate, sorbitan monooleate, glycerol monostearate, polyoxy It is preferable to select at least 1 type from the group which consists of ethylene sorbitol hexastearate, sorbitan tristearate, and sorbitan trioleate.

The alcohol is methanol, ethanol, n-butanol, isopropanol, 2-ethoxyethanol, t-butanol, 2-ethylhexanol, isoamyl alcohol, n-octyl alcohol, 2-amyl alcohol, cyclohexanol, n-propanol And benzyl alcohol is preferably selected from one or more kinds.

In addition, the present invention provides a waterproof construction method further comprising the step of applying a water-soluble epoxy composition on the silicone emulsion waterproof layer (first waterproof layer) to further form a water-soluble epoxy composition waterproof layer (second waterproof layer).

It is preferable that the said water-soluble epoxy composition contains 50-150 weight part of hardening | curing agents, 200-500 weight part of siliceous powders, and 50-300 weight part of water with respect to 100 weight part of epoxy main materials.

It is preferable that the said epoxy main material is a water-soluble epoxy resin.

The epoxy motif may further comprise pigments, fillers and water.

It is preferable that the said hardening | curing agent is an epoxy hardening | curing agent.

The curing agent may further include a filler, a fluidizing agent, and an alkali metal salt soap.

The alkali metal salt soap is preferably selected from the group consisting of sodium stearate, potassium oleate and sodium oleate.

Preferably, the siliceous powder further includes cement.

In addition, the present invention is further coated with a finishing material selected from the group consisting of mortar, acrylic, urethane, rubber asphalt, sheet, asphalt, epoxy, ceramic coating and paint on top of the water-soluble epoxy composition waterproof layer (second waterproof layer). It provides a waterproof construction method characterized in that.

As described in detail above, in the present invention, when the silicone emulsion is sprayed and applied to the surface of concrete or mortar to be waterproofed, the silicone emulsion is adsorbed and penetrated therein, and the water-soluble epoxy composition is coated or brush-coated thereon to be waterproof. When applied, even if the surface of the waterproof layer is not sufficiently dried or poor in smoothness, it does not cause poor construction, poor adhesion between the waterproof layers (lack of interfacial adhesion, lifting and breakage of the waterproof layer, etc.), and resistance to acid and alkali resistance. It is excellent waterproofing method with excellent waterproofing performance and durability life by preventing neutralization and corrosion of cement-based structure of waterproof layer. In addition, the waterproof construction method is simple, not only can be easily waterproof construction with a small number of people, but also waterproof construction is possible even if not skilled workers, and also has an excellent waterproof effect.

1 is a schematic diagram showing a conventional waterproof construction method,
Figure 2 is a schematic diagram showing a process of leaking water in accordance with the existing waterproof construction method,
Figure 3 is a schematic diagram of the composite waterproof construction method of the present invention.

EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated in detail.

The present invention relates to a waterproofing agent and a construction method of a concrete or mortar structure having a long life durability by solving the corrosion, aging and neutralization of the waterproof layer which is the root cause of the generation of the defect of waterproofing.

Therefore, the present invention includes 2 to 20 parts by weight of colloidal silica, 2 to 40 parts by weight of emulsifier, 10 to 150 parts by weight of alcohol and 300 to 400 parts by weight of water based on 100 parts by weight of the silane compound represented by the following general formula (1). It provides a waterproof construction method characterized by applying the formed silicone emulsion to the waterproof layer to form a silicone emulsion waterproof layer (first waterproof layer):

[Formula 1]

R _n -Si- (R ') _4-n

(In the general formula 1, the molecular weight of the monomer is 150 to 450, R is a hydrocarbon group having 2 to 17 carbon atoms, R 'is a hydrolyzable group, and n is 1 or 2.)

The silane compound is ethyltriethoxysilane, ethyltrimethoxysilane, ethyltri-n-propoxysilane, isobutyltriethoxysilane, isobutyltrimethoxysilane, isobutyltriacetoxysilane, n-hexyltrimeth Methoxysilane, vinyltriethoxysilane, phenyltrimethoxysilane, octyltriethoxysilane, octylmethyldiisopropoxysilane, lauryltrimethoxysilane, 2-ethylhexyltrimethoxysilane, octyltriethoxysilane At least one selected from the group consisting of dodecyltribromosilane, tetradecyltrimethoxysilane, hexadecyltriethoxysilane, octadecyltriethoxysilane, dimers thereof, trimers thereof and oligomers thereof. desirable.

The colloidal silica preferably has a pH of 8 to 11 and a silica sol having a content of SiO ₂ of 20 wt% or less, preferably 2 to 20 wt%. As one preferred embodiment, the colloidal silica may include nalcock 1115 from Nalco Chemical, Niacol 215 from Niacol Corporation, Snowtex 20 from Nissan Chemical, Siton W 15 from Monsanto, and the like.

The emulsifier is polyoxypropylene manitol dioleate, polyoxyethylene sorbitol oleate, polyoxyethylene monooleate, polyoxyethylene stearate, sorbitan monostearate, sorbitan monooleate, glycerol monostearate, polyoxy It is preferable to select at least 1 type from the group which consists of ethylene sorbitol hexastearate, sorbitan tristearate, and sorbitan trioleate. The emulsifier is a nonionic emulsifier, the type selected may vary depending on the type of silane, the amount used is 2 to 40 parts by weight, preferably 10 to 30 parts by weight with respect to 100 parts by weight of the silane compound. In particular, the emulsifier is more preferably used in combination with a polyhydroxy compound.

The alcohol is methanol, ethanol, n-butanol, isopropanol, 2-ethoxyethanol, t-butanol, 2-ethylhexanol, isoamyl alcohol, n-octyl alcohol, 2-amyl alcohol, cyclohexanol, n-propanol And benzyl alcohol is preferably selected from one or more kinds. In particular, it is preferable to use those whose hydrogen bonding force is strong and whose solubility parameter value is 9-16.

The water may be used as rain water, tap water, distilled water, etc., in particular, since the storage stability of the silicone emulsion is easily lowered by impurities contained in the water, it is preferable to use distilled water.

In addition, the present invention provides a waterproof construction method further comprising the step of applying a water-soluble epoxy composition on the silicone emulsion waterproof layer (first waterproof layer) to further form a water-soluble epoxy composition waterproof layer (second waterproof layer).

It is preferable that the said water-soluble epoxy composition contains 50-150 weight part of hardening | curing agents, 200-500 weight part of siliceous powders, and 50-300 weight part of water with respect to 100 weight part of epoxy main materials.

It is preferable that the said epoxy main material is a water-soluble epoxy resin. The water-soluble epoxy resin is equivalent to 190 ~ 400 g / eq, a low molecular weight epoxy resin having a weight average molecular weight of less than 400 is preferred, there is no particular limitation on the type of epoxy resin, for example, bisphenol A type, bisphenol F type, The thing which disperse | distributed the noblock type and cycloaliphatic epoxy resin can be used.

The epoxy motif may further comprise pigments, fillers and water.

The filler may be used alone or in combination of an appropriate ratio of calcium carbonate, silica, diatomaceous earth, barium sulfate, talc.

The silica is used when the silica is to increase the strength, barium sulfate may be used when the shielding effect of the radioactive material to increase.

In a preferred embodiment, the epoxy main material is 30 to 60 parts by weight of water-dispersible bisphenol A epoxy resin, 10 to 20 parts by weight of silica and 30 to 60 parts by weight of water at room temperature ~ 40 ℃ 30 minutes to 3 hours to stir the mixture It is preferable to prepare.

It is preferable that the said hardening | curing agent is an epoxy hardening | curing agent. Examples of the epoxy curing agent may be various compounds such as polyamines, polyamides, urea resins, acid anhydrides, melamine resins, isocyanates, phenol resins, and the most commonly used types are amines.

The curing agent may further include a filler, a fluidizing agent, and an alkali metal salt soap.

As the fluidizing agent, acrylic resins, melamine resins, etc. are used, and the pores of large pores and cracks as well as fine pores of concrete or mortar structures are improved by improving flow and self leveling of the mixed composition using a water-soluble epoxy resin. It penetrates easily by itself and gives a filling function.

The alkali metal salt soap is preferably selected from the group consisting of sodium stearate, potassium oleate and sodium oleate. Alkali metal salt soap forms an insoluble interface adhesive layer according to the reaction with the skin layer of a concrete or mortar structure to enhance adhesion and insoluble matrix with the second waterproof layer, which is a water-soluble epoxy composition at the interface with the water-proof layer composed of the first waterproof layer. It will give a function. This can prevent peeling and lifting after construction by improving the interfacial adhesion and adhesion with the concrete or mortar structure, and forming an insoluble matrix by bonding with colloidal silica which is the first waterproofing layer composition. It gives a synergistic effect that enhances chemical resistance, water resistance, abrasion resistance and impact resistance.

In one preferred embodiment, the curing agent is 10 to 20 parts by weight of water-disperse modified aliphatic polyamide, 5 to 10 parts by weight of polyamideamine, 1 to 10 parts by weight of melamine resin, 10 to 30 parts by weight of calcium carbonate and alkali metal salt 1-10 parts by weight of the soap is stirred at room temperature ~ 40 ℃ for 30 minutes to 3 hours to prepare a mixture.

Preferably, the siliceous powder further includes cement, and the cement is preferably Portland cement or alumina cement.

When using a mixture of cement and siliceous powder, it is preferable to further include 30 to 100 parts by weight of portland cement or alumina cement based on 100 parts by weight of siliceous powder.

By using the siliceous-based powder, it is possible to exhibit excellent physical properties for adhesion strength, cracking property, absorption amount, compressive strength, freezing and melting of the film.

The water-soluble epoxy composition obtained by the above method, after applying the silicone emulsion solution to the first waterproofing layer, and then continuously applied at intervals of 1 to 15 minutes, the first waterproofing layer on the surface of the concrete or mortar with evaporation of water By forming a second waterproof layer thereon, the first waterproof layer maintains the waterproof layer of the concrete or mortar structure within 5% of water content, and prevents corrosion, neutralization, etc. as well as waterproofing performance. It is a waterproof construction of concrete or mortar structure that has excellent waterproofing performance and durability life by protecting the surface and strengthening the interfacial adhesion with the filling of the surface pores and microcracks.

In the waterproof construction method of the present invention, the silicone emulsion penetrates into the concrete or mortar to be dried to form a network structure bond between the pores (Porosity) inside the concrete matrix to discharge the remaining moisture inside but outside It provides a membrane function to block water from entering.

Thus, if it is composed of the first waterproof layer and the second waterproof layer, it is excellent in resistance to acid rain, salt, various chemicals, air pollutant gas, ozone, etc., and can prevent the neutralization, corrosion and weathering of the waterproof layer itself. have.

As shown in Figures 1 and 2, the conventional waterproof construction method is applied to the base surface of the waterproof layer by primer or base adjuster, and then applied with an epoxy or urethane waterproofing agent, so that residual moisture or other rainwater or leachate flows into the waterproof layer. According to (40), as shown in FIG. 2, the water-resistant layers 20 and 30 are destroyed, or the defects of waterproofing occur due to the lifting phenomenon, but the present invention, as shown in FIG. The first waterproof layer 52 is formed of a silicone emulsion in the inside of the 50, and the second waterproof layer 60, which is a water-soluble epoxy composition that is a coating waterproof layer having excellent interfacial adhesion capability, is formed thereon, such that interfacial adhesion failure and index defects are caused. Not only does the defect not appear, but the surface itself is neutralized, corroded, and weathered after construction.

In addition, the present invention is to further apply a finishing material selected from the group consisting of mortar, acrylic, urethane, rubber asphalt, sheet, asphalt, epoxy, ceramic coating and paint on top of the water-soluble epoxy composition (second waterproof layer). It provides a waterproof construction method characterized in that.

Such additional construction may have the effect of further increasing the interfacial adhesion and waterproof performance.

Hereinafter, the present invention will be described in more detail with reference to Examples.

[Example]

Preparation of Silicone Emulsion

Preparation Example 1

5 g of 2-ethoxyethanol and n-butanol are mixed together with 7 g of colloidal silica (product name: Nalcock 1115, manufactured by Nalco Chemical Co., Ltd.), and 100 g of 2-ethylhexyltriethoxysilane is added thereto over 30 minutes. After stirring slowly, 18 g of polyoxyethylene sorbitol oleate was further added and stirred as an emulsifier, and 365 g of distilled water was added, followed by stirring to obtain a milky silicone emulsion (A-1).

Production Example 2

15 g of polyoxyethylene monooleate and 365 g of water were added to 100 g of octyl triethoxysilane and emulsified and dispersed, and 5 g of n-butanol and n-octyl alcohol were added and mixed, followed by colloidal silica (product name: Niacol 215, nia). Kohl's product) was added to 10 g to obtain a stable milky silicone emulsion (A-2).

The results of testing the silicone emulsion of Preparation Example 1 and Preparation Example 2 by KSF-4930 are shown in Table 1.

Test Items A-1 A-2 Test Methods Permeability Performance 0.72 0.73 KSF-4930 Absorption performance 0.03 0.03

The coating amount is based on 0.4L / m ² It can be seen that the water permeability and water absorption of the silicone emulsion prepared from Preparation Example 1 and Preparation Example 2 is significantly higher than the existing waterproofing agent.

Preparation of Water Soluble Epoxy Composition

Production Example 3

100g of water-disperse epoxy resin (KEM-128-70, Kukdo Chemical) is mixed with 40g of silica with a mixer to prepare epoxy powder, 100g of water dispersant (KH-700, Kukdo Chemical) 25g of calcium carbonate, 4g of diatomaceous earth, Epoxy curing agent was prepared by mixing 8 g of melamine resin and 3 g of sodium stearate well with a mixer. The mixing ratio of the main body and the hardening agent was 1: 1. Epoxy equivalent is 190-210 (g / eq) and amine number is 190-250 (mgKOH / g).

Preparation Example 4

Water-soluble epoxy composition (B-1) was prepared by mixing 200 g of the epoxy agent prepared in Preparation Example 3, 60 g of the curing agent, and 200 g of the Portland cement, and then adding 60 g of water for viscosity control.

Preparation Example 5

Water-soluble epoxy composition (B-2) was prepared by mixing 60 g of the epoxy agent prepared in Preparation Example 3, 60 g of the curing agent, and 250 g of the siliceous powder ((Ceresit CR-65: Henkel Co.)), followed by addition and stirring of 70 g of water for viscosity control. Was prepared.

Preparation Example 6

60 g of the epoxy agent prepared in Preparation Example 3, 125 g of Portland cement and 125 g of siliceous powder ((Ceresit CR-65: Henkel Co., Ltd.)) were mixed with 60 g of a curing agent, and then 70 g of water was added and stirred for viscosity control. (B-3) was prepared.

Formation of the first waterproof layer and the second waterproof layer

Example 1

Make cement bricks (190 mm x 90 mm x 55 mm) and concrete samples of this size, apply silicone emulsion (A-1) to all six sides of each sample, and use the brush immediately after the milk color disappears. The water-soluble epoxy composition (B-2) was applied twice so as to have a thickness of 1 mm, and then dried at room temperature for 72 hours.

Next, one of the two samples was cut to measure the depth of penetration of the silicone emulsion, that is, the thickness of the waterproof layer. In addition, two samples, each of which was cut on one side, were immersed in water for 72 hours, and then taken out. It was confirmed that water did not penetrate where the waterproof layer was formed. The results of adhesion strength, creep resistance, water absorption, compressive strength, freezing, and repeated melting test are shown in Table 2. As shown in Table 2, the penetration depth of Comparative Example 1 and the first waterproofing layer was not different, but it was confirmed that the splitting resistance of the water-soluble epoxy composition as the second waterproofing layer was improved, and the workability and self-leveling property were further improved. In addition, the bond strength and the compressive strength were greatly improved.

Example 2

Except having used the water-soluble epoxy composition (B-3), it tested on the conditions and methods similar to Example 1, and the result is shown in Table 2.

 As shown in Table 2, the penetration depth of Comparative Example 1 and the first waterproofing layer was not different, but it was confirmed that the splitting resistance of the water-soluble epoxy composition as the second waterproofing layer was improved, and the workability and self-leveling property were further improved. In addition, the bond strength and the compressive strength were greatly improved.

Comparative Example 1

Except having used the water-soluble epoxy composition (B-1), it tested on the conditions and methods similar to Example 1, and the result is shown in Table 2.

Comparative Example 2

Instead of the water-soluble epoxy composition (B-2) of Example 1, using an acrylic composition (C-1) in which 120 g of an acrylic emulsion (AC-2000, manufactured by Henkel), 250 g of siliceous powder, and 70 g of water were mixed, The experiment was conducted under the same conditions and methods, and the results are shown in Table 2.

The results showed that the physical properties were much less in the adhesion strength, freezing, and melting test than in Examples 1 and 2.

Comparative Example 3

Instead of the water-soluble epoxy composition (B-2) in Example 1 was carried out using an acrylic composition (C-2) mixed with 120g of acrylic emulsion (AC-2000, Henkel Co.), 125g of siliceous powder, 125g of cement and 70g of water The experiment was conducted under the same conditions and methods as in Example 1, and the results are shown in Table 2.

The results showed that the physical properties were much less in the adhesion strength, freezing, and melting test than in Examples 1 and 2.

Test Items  Example 1  Example 2  Comparative Example 1  Comparative Example 2  Comparative Example 3 Test Methods Adhesion Strength (N / cm ² ) 158 152 132  103  109 KSF-4918 Crossing performance clear clear Microgeneration clear clear Absorption amount (g) 0.07 0.08 0.15 0.14 0.08 Compressive strength (N / cm ² ) 489 455 415 323 347 Freeze and Melt Repeat Test
(-20 ± 2 ℃ * 20 hours,
80 ± 2 ℃ * 20 hours)
5 repetitions clear clear clear Partial swelling Partial swelling KSM-5307

10: concrete or mortar structure
20: primer or background adjuster
30: epoxy or urethane waterproof layer
40: Water inflow path of rainwater, leachate, etc.
50: concrete or mortar structure
52: first waterproof layer
60: second waterproof layer

Claims (14)

Ethyltriethoxysilane, ethyltrimethoxysilane, ethyltri-n-propoxysilane, isobutyltriethoxysilane, isobutyltrimethoxysilane, isobutyltriacetoxysilane, n-hexyltrimethoxysilane, vinyl Triethoxysilane, phenyltrimethoxysilane, octyltriethoxysilane, octylmethyldiisopropoxysilane, lauryltrimethoxysilane, 2-ethylhexyltrimethoxysilane, octyltriethoxysilane, dodecyltribro 100 parts by weight of a silane compound selected from the group consisting of mosilane, tetradecyltrimethoxysilane, hexadecyltriethoxysilane, octadecyltriethoxysilane, dimers thereof, trimers thereof and oligomers thereof Silicone emulsion waterproof by applying a silicone emulsion comprising 2 to 20 parts by weight of colloidal silica, 2 to 40 parts by weight of emulsifier, 10 to 150 parts by weight of alcohol, and 300 to 400 parts by weight of water to the waterproof layer. To form a (first waterproof layer),
On the silicone emulsion waterproofing layer (first waterproof layer), a water-soluble epoxy composition comprising 50 to 150 parts by weight of a curing agent, 200 to 500 parts by weight of siliceous powder and 50 to 300 parts by weight of water is applied to 100 parts by weight of an epoxy main material. Waterproofing method comprising the step of forming a water-soluble epoxy composition waterproof layer (second waterproof layer). The method of claim 1,
The colloidal silica is a waterproof construction method characterized in that the silica sol having a pH of 8 to 11 and the content of SiO ₂ 20% by weight or less. The method of claim 1,
The emulsifier is polyoxypropylene manitol dioleate, polyoxyethylene sorbitol oleate, polyoxyethylene monooleate, polyoxyethylene stearate, sorbitan monostearate, sorbitan monooleate, glycerol monostearate, polyoxy Waterproofing method characterized in that at least one selected from the group consisting of ethylene sorbitol hexastearate, sorbitan tristearate and sorbitan trioleate. The method of claim 1,
The alcohol is methanol, ethanol, n-butanol, isopropanol, 2-ethoxyethanol, t-butanol, 2-ethylhexanol, isoamyl alcohol, n-octyl alcohol, 2-amyl alcohol, cyclohexanol, n-propanol And at least one selected from the group consisting of benzyl alcohol. The method of claim 1,
The epoxy motif is a waterproof construction method, characterized in that the water-soluble epoxy resin. The method of claim 1,
The epoxy theme further comprises a pigment, a filler and water. The method of claim 1,
Waterproofing method, characterized in that the curing agent is an epoxy curing agent. The method of claim 1,
The curing agent is waterproof construction method further comprising a filler, a fluidizing agent and an alkali metal salt soap. The method of claim 8,
The alkali metal salt soap is waterproof construction method characterized in that at least one selected from the group consisting of sodium stearate, potassium oleate and sodium oleate. The method of claim 1,
The siliceous powder is waterproof construction method characterized in that it further comprises cement. The method of claim 1,
At least one finishing material selected from the group consisting of mortar, acrylic, urethane, rubber asphalt, sheet, asphalt, epoxy, ceramic coating and paint is further applied on top of the water-soluble epoxy composition waterproof layer (second waterproof layer). Waterproof construction method. delete delete delete

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