KR101300406B1 - selective non-exposure complex waterproof structure using soft rubber-asphalt coating material - Google Patents

Abstract

The present invention relates to a non-exposure composite method using a soft rubber asphalt coating material as a coating material to a method for producing a flexible rubber asphalt coating material and to maximize the elastic force, elongation rate using an asphalt compound widely used for non-exposure waterproofing and soft rubber asphalt coating material Nonwoven fabric, asphalt impregnated nonwoven fabric, felt, PET, PE film, rubber asphalt sheet, or non-exposed composite waterproof structure using a sheet coated with urethane, nylon, hot melt, PE, PET resin.

Description

Selective non-exposure complex waterproof structure using soft rubber-asphalt coating material}

The present invention is a waterproof structure of excellent and stable performance by arranging the flexible rubber asphalt coating material and various types of waterproof sheet, which are manufactured to have excellent response, crack followability, elastic force and elongation rate according to the change of weather conditions, in a stacked manner. It relates to a selective unexposed composite waterproof structure using a soft rubber asphalt-based coating material for providing a.

The waterproofing of building structures is less than 1 ~ 3% of the total construction cost, which is insignificant in terms of money.However, not only the environmental aspects of maintaining a pleasant living environment for real residents, but also corrosion, neutralization, It is an important process that has a high impact in terms of preventing durability degradation such as structural deterioration acceleration due to freezing thawing and invasion of harmful substances.

The non-exposed waterproof method, which is used for waterproofing the building, can be constructed at about 50% of the unit price of the exposed waterproof method and occupies 70% of the domestic rooftop waterproof method. However, in spite of these economic advantages, due to the low cost, the high performance waterproof material is not used unlike the exposure waterproof method. As a result, more than 92% of the material is asphalt-based material.

Until just a few years ago, 82% of non-exposure and waterproof methods mainly used asphalt thermal method, improved asphalt torch method, and improved asphalt thermal method, resulting in environmental pollution due to odor, civil complaints, demand for professional manpower due to the use of torch and hot air fan, and heat. As such problems cause problems such as damage and deformation of the material or weakening of adhesion to the base surface when excessively transmitted, self-adhesive asphalt sheets are used in recent years. The use of the composite method which uses a coating material or a urethane coating material with a sheet is also gradually increasing.

However, in the case of self-adhesive asphalt sheets, the adhesive strength is lower than that of the asphalt method using heat by applying the self-adhesive property to the back of the sheet and attaching it to the ground concrete. Not only does it show a problem that the variation in adhesion performance is large depending on the surface irregularities and wet conditions, and the sheet joints are easily broken due to the thermal behavior of the substrate as the sheet joints are treated as overlapping joints. There is a problem such as the loss of waterproof performance as the water is formed when the leak occurs due to sheet breakage due to the adhesive does not adhere.

In addition, typical non-exposure composite methods using a coating material and modified asphalt sheet are disclosed in Daeheung Industrial Hybrid Cold Forming Method in the form of urethane and double-sided nonwoven fabric disclosed in Patent Document 10-0638990 of Document 1 and Publication No. 2000-0002469 in Document 2 In order to increase the compatibility, Hanbon Industries' mastic coating sheet double waterproofing method is applied with nonwoven fabric attached to the lower layer of asphalt-based coating material and modified asphalt sheet, PE film attached to the upper layer, and synthetic resin material coated with asphalt compound on both sides. However, in the case of hybrid cold method, the insulation method is difficult to maintain and maintain when defect occurs. Urethane solvent dissolves the asphalt sheet due to poor agitation due to inexperienced workers, causing damage to the waterproof layer, causing problems of waterproofing.

In the case of mastic waterproofing, solvent-type asphalt compound has a higher viscosity than conventional liquid such as urethane, so it is difficult to apply the coating work and the work efficiency decreases. As a result, the asphalt compound in the gel state is hardened. It is difficult to expect continuously, and joint joints also use solvent-based asphalt compound for floor coating, which makes it difficult to form a complex complex with dissimilar materials. Solvent-type asphalt compound eventually evaporates the solvent and hardens after a certain period of time. There is a risk of joint breakage due to weakened elasticity and tensile strength of the coating material.

Therefore, the problem of self-adhesive sheet and composite method can be compensated and the material can be quantitatively constructed, and the unskilled person can be easily installed, and it can be applied to various concrete structures (PC, RC, Half PC, etc.) According to the present invention, it is important to develop a coating material and a composite waterproofing method using the same, which can be selectively applied and exhibit excellent waterproofing performance.

[Document 1] Registration No. 10-0638990 (2006.10.25) [Patent 2] Patent Publication No. 2000-0002469 (2000.01.15)

An object of the present invention is an unexposed waterproofing material, which has excellent elasticity and elongation rate, and is a non-exposed composite waterproofing method with simplicity and economy in construction even at low temperature in winter when the high temperature in summer and the viscosity of asphalt are increased, and can be applied without additional primer coating work. In other words, it is a one-component soft rubber asphalt coating film material, which is provided with thixotropy and has good workability, and has a high viscosity (6000 ~ 14000 cPs) of the urethane level preferred by workers, and has a low viscosity and excellent adhesion to inorganic materials, especially concrete. No work process is required and workability is also excellent, so it is possible to work with rollers and squirts. It is a one-component product that semi-solidizes in a short time for easy follow-up work, and can be used by adjusting the viscosity in the field. Improved heat flow resistance, which is a problem of asphalt, As soft rubber asphalt on the high viscosity has a viscosity lower than the solid phase rather than the Gel-based semi-solid even after lapse of the retention's viscosity is to provide a coating material which maximizes elasticity and elongation.

Furthermore, by developing a wall coating that gives faster drying and thixotropy than floor coating, and by using urethane sealant for wall coating, there is no correspondence between urethane and asphalt material, so it frequently leaks at the connection between floor and wall. Is to solve the problem that occurs.

Accordingly, an object of the present invention is to provide a coating material that can reduce the defects on the joints and corners of the joint which is a problem of the non-exposure composite method.

In addition, the conventional solvent-type and water-based rubber asphalt coating material manufacturing method is prepared by mixing the first step and the second step after each step (batch) by the manufacturing method of mixing the first step and the second step, the manufacturing time is long and the manufacturing method Although it is complicated, the present invention provides a manufacturing method that improves manufacturing efficiency by improving the manufacturing method by a simpler manufacturing method, that is, by sequentially inputting the raw materials into one batch.

Furthermore, it is to provide a selective non-exposed composite waterproof structure using a soft rubber asphalt coating material which can be formed in various ways depending on site conditions or worker preferences.

In order to achieve the above object, the present invention for floor coating is straight asphalt 25 ~ 35 wt%, Hydro treated lube base oil (3-7 wt%), Fast drying petroleum solvent (Aliphatic hydrocarbon-based) 5 ~ 15 wt%, thixotropic stiffener (either talc, disintegrated stone, silica) 2 ~ 5 wt%, EVA Emulsion 0.5 ~ 1 wt%, water-soluble polymer crosslinker (any one of SB latex, butyl latex, acrylic latex) 5 ~ 10 Provides a waterproof soft rubber asphalt coating film composed of wt%, calcium carbonate (heavy carbon) 25-35 wt%, cement 3-7 wt%, sedimentation inhibitor (either polyamide or polyolefin) 1 to 2 wt%. do.

In addition, the present invention for wall coating is straight asphalt 25 ~ 35 wt%, Hydro treated lube base oil (3-5 wt%), Fast drying petroleum solvent (Aliphatic hydrocarbon-based) 3-10 wt%,, Oil-based acid (High molecular weight unsaturated polycarbonic acid system) 0.2 ~ 0.5 wt%, thixotropic reinforcement (any one of talc, calcite stone, silica) 5 ~ 10 wt%, EVA Emulsion 0.5 ~ 1 wt%, water soluble high molecular weight crosslinker (SB latex, 5 to 10 wt% of butyl latex or acrylic latex), 25 to 35 wt% of calcium carbonate (heavy carbon), 3 to 7 wt% of cement, 1 to 2 wt of anti-settling agent (polyamide or polyolefin) Provided is a waterproof soft rubber asphalt-based coating material made of%.

According to the present invention, the first soft rubber asphalt-based coating material layer 100 is applied on the concrete base layer; A first waterproof sheet 200 disposed on an upper portion of the first soft rubber asphalt coating layer 100; A second soft rubber asphalt based coating material layer 300 applied on the first waterproof sheet 200; And a non-exposed composite waterproof structure using a soft rubber asphalt coating material including a second waterproof sheet 400 disposed on the second soft rubber asphalt coating material layer 300.

The first soft rubber asphalt based coating material layer 100 and the second soft rubber asphalt based coating material layer 300 are formed of any one of a plurality of soft rubber asphalt based coating materials having a difference in elastic force and elongation rate. The waterproof sheet and the second waterproof sheet are selected from a nonwoven fabric, asphalt impregnated nonwoven fabric, felt, PET, PE film, rubber asphalt sheet, or a composite sheet in which urethane, nylon sheet, hot melt, PE, PET resin is attached or coated on the nonwoven fabric. It is formed of either.

The plurality of soft rubber asphalt coating films are first or second type soft rubber asphalt coating films,

The first type of soft rubber asphalt coating film material, straight asphalt 25 ~ 35 wt%, Hydro treated lube base oil (3-7 wt%), Fast drying petroleum solvent (Aliphatic hydrocarbon-based) 5 ~ 15 wt% , 2 ~ 5 wt% of thixotropic reinforcements (any one of talc, disintegrated stone, silica), 0.5 ~ 1 wt% of EVA Emulsion, 5 ~ 10 wt% of water-soluble polymer crosslinker (any one of SB latex, butyl latex, acrylic latex), Calcium carbonate (heavy carbon) 25-35 wt%, cement 3-7 wt%, sedimentation inhibitor (either polyamide or polyolefin) 1 ~ 2 wt%,

The soft rubber asphalt coating film of the second type, straight asphalt 25 ~ 35 wt%, Hydro treated lube base oil 3 ~ 5 wt%, Fast drying petroleum solvent (Aliphatic hydrocarbon type) 3 ~ 10 wt% 0.2 ~ 0.5 wt% of oil-based acidic acid (high molecular weight unsaturated polycarbonate), thixotropic reinforcement (any one of talc, calcite, silica), EVA Emulsion 0.5 ~ 1 wt%, water-soluble polymer (SB latex, butyl latex, acrylic latex) 5-10 wt%, calcium carbonate (bicarbonate) 25-35 wt%, cement 3-7 wt%, sedimentation inhibitor (any of polyamide-based, polyolefin-based) It consists of 1-2 wt%.

According to the present invention, the flexible rubber asphalt coating material for floor coating and wall coating and various types of waterproof sheets, which are manufactured to have excellent responsiveness, crack tracking, elastic force and elongation rate according to climatic conditions, are selected and stacked. By providing a waterproof soft rubber asphalt coating material and an optional non-exposed composite waterproof structure using the same to provide a waterproof structure of excellent and stable performance by the arrangement.

Figure 1 shows an optional unexposed waterproof structure using a soft rubber asphalt-based coating material according to the present invention.
2 is a view schematically showing a method for constructing a waterproof sheet with overlapping joints according to an embodiment of the present invention.
3 is a view showing a waterproof structure that can be applied to the site that requires the performance of the weather.

Hereinafter, the composition of the soft rubber asphalt coating material and the manufacturing method thereof will be described.

The soft rubber asphalt coating material according to the present invention can be formed into two types in one component type, that is, it can be divided into floor coating and wall coating, and floor coating is designed to lower the viscosity while maximizing elastic force and elongation rate. The wall coating is easier to dry, and the floor coating is faster to dry the floor coating, so that the subsequent process can be performed.

The soft rubber asphalt coating material formed of the first type is used for floor coating, straight asphalt 25-35 wt%, hydrogen treated lube base oil 3-7 wt%, quick-drying petroleum solvent (Aliphatic hydrocarbon type) 5 ~ 15 wt%, thixotropic reinforcements (either talc, disintegrated stone, silica) 2 ~ 5 wt%, EVA Emulsion 0.5 ~ 1 wt%, water-soluble polymer crosslinker (any of SB latex, butyl latex, acrylic latex) 5 ~ 10 wt%, calcium carbonate (heavy carbon) 25-35 wt%, cement 3-7 wt%, sedimentation inhibitor (either polyamide-based or polyolefin-based) 1-2 wt%,

 Hydro treated lube base oil, Fast drying petroleum solvent (Aliphatic hydrocarbon type), EVA Emulsion, Calcium carbonate (heavy charcoal), Thixotropic reinforcement

After mixing and dispersing (any one of talc, disintegrated stone and silica), add a small amount of straight asphalt and disperse it, add water-soluble polymer crosslinker (any one of SB latex, butyl latex, and acrylic latex) and stir for at least 1 hour. It is prepared by adding cement and sedimentation inhibitor while crosslinking.

Calcium carbonate is recommended to use 10 ~ 20㎛ particle size of heavy carbon, Hydro-treated lube base oil has a flash point stable at temperature above 180 ℃, flow point at low temperature -20 ℃ below It is preferable to use it. As a result of the addition of the hydrogenated reforming oil and the water-soluble polymer crosslinking, the asphalt has the viscosity and adhesiveness, and the fluidity is improved, thereby maintaining the behavior cohesion and adhesion with the base matrix, thereby forming a perfect waterproof.

In addition, in order to secure the construction and smooth workability during winter season, hydrogen treated lube base oil and fast-drying petroleum solvent (Aliphatic hydrocarbon-based) were added.

Water-soluble high molecular weight crosslinking agent (SB latex, butyl latex, acrylic latex) was added to increase its mechanical strength by crosslinking, and cement was added with high specific gravity to supplement the mechanical strength and increase paint dispersion during manufacturing. By adding either one of the pulverized stone and silica), it improves the thixotropy and improves the flow down even after the internal temperature is over 50 ℃ .The EVA Emulsion and the thixotropic reinforcement absorb and absorb moisture even when there is moisture on the floor surface. Improved the sex further.

In order to minimize the effect on temperature, the asphalt content, which is a temperature sensitive material, was reduced, and by adding hydrogen treated lube base oil and fast-drying petroleum solvent (Aliphatic hydrocarbon type), Even under the conditions, workability is secured and it penetrates into the concrete floor and sufficient adhesive strength is given even without applying the adhesive and primer.It maintains gelation by cross-linking asphalt and water-soluble polymers, and maintains workability and point and adhesion in winter. Improved waterproofing ability.

In addition, the asphalt flows to the mother cracks and often falls to the floor of the parking lot, which is a problem. To make it possible.

The soft rubber asphalt coating material of the second type is for wall coating, and the content of hydrogenated reforming oil, quick-drying petroleum solvent, and thixotropic reinforcement is adjusted to room temperature by adding the hydrogenated reforming oil, the quick-drying petroleum solvent and the thixotropic reinforcement to the floor coating of the first type. It can be manufactured as a product with reduced flow, and the same manufacturing method or initial oil powder as for floor coating is added when adding hydro treated lube base oil or quick-drying petroleum solvent. In the manufacture of paints having high sintering, they are prepared in advance for uniform dispersion, and as a dispersant, it is preferable to use an oil-based acidic agent (high molecular weight unsaturated polycarboxylic acid system) having good dispersibility while lowering the viscosity of the paint.

The second type of soft rubber asphalt coating material is straight asphalt 25 ~ 35 wt%, Hydro treated lube base oil 3 ~ 5 wt%, Fast drying petroleum solvent (Aliphatic hydrocarbon type) 3 ~ 10 wt%, oily Dispersant (high molecular weight unsaturated polycarboxylic acid) 0.2-0.5 wt%, thixotropic reinforcement (either talc, calcite, silica) 5-10 wt%, EVA Emulsion 0.5-1 wt%, water-soluble polymer crosslinker (SB latex) , Butyl latex, any one of acrylic latex) 5-10 wt%, calcium carbonate (heavy carbon) 25-35 wt%, cement 3-7 wt%, sedimentation inhibitor (either polyamide-based or polyolefin-based) 1-2 It is prepared by adding wt%.

The soft rubber asphalt coating material of the first and second types is the rubber asphalt based test method of KSF 3211 and the elongation rate is not broken when it is measured more than 800%, and it is a sintered reinforcement and water-soluble polymer crosslinking agent (SB latex, butyl latex, acrylic latex) With the introduction of Hana, the plasticity was increased to enable wall construction. In addition, the fast drying petroleum solvent enables fast drying time to develop a rapid elastic elongation rate, enabling subsequent work immediately.In order to improve the workability at low temperatures, the asphalt content is reduced and hydrogen treated lube is added. By adding base oil, the workability was improved even when the temperature in winter was below freezing and the mixture was designed to be diluted according to the site conditions by adding and stirring the diluent.

As the diluent, both aliphatic hydrocarbons and aromatic hydrocarbons can be used, but aliphatic hydrocarbons having better compatibility with asphalt are preferable.

Hereinafter, a waterproof structure using the soft rubber asphalt coating material will be described with reference to the accompanying drawings.

1 shows a waterproof structure using a soft rubber asphalt-based coating material according to the present invention. First, the first soft rubber asphalt based coating material layer 100 is formed on the concrete base layer without applying a primer. The first waterproof sheet 200 is disposed on the first soft rubber asphalt coating layer 100. The second soft rubber asphalt based coating material layer 300 is formed on the first waterproof sheet 200. Subsequently, the second waterproof sheet 400 is installed on the second soft rubber asphalt coating layer 300.

Here, the first soft rubber asphalt based coating material layer 100 and the second soft rubber asphalt based coating material layer 300 may be selected from one of the first and second types of soft rubber asphalt coating material. Preferably, the first soft rubber asphalt coating material layer 100 may be a first type, that is, a soft rubber asphalt coating material for bottom coating, and the second soft rubber asphalt coating material layer 300 may be formed of a first type. Two types, namely soft rubber asphalt based coating materials for wall coating, can be used.

Among the soft rubber asphalt coating films, the first type of soft rubber asphalt coating films is hydrogen treated lube base oil, aliphatic hydrocarbon solvent, EVA emulsion, calcium carbonate (heavy carbon), After mixing and dispersing the thixotropic reinforcement material (any one of talc, disintegrated stone, and silica), disperse it while adding a small amount of straight asphalt, and add water-soluble polymer crosslinker (any one of SB latex, butyl latex, and acrylic latex). It is prepared by adding cement and sedimentation inhibitor while stirring crosslinking for more than an hour, straight asphalt 25 ~ 35 wt%, Hydro treated lube base oil 3 ~ 7 wt%, fast drying petroleum solvent (Aliphatic hydrocarbon type) 5 ~ 15 wt%, thixotropic reinforcement (either talc, disintegrated stone, silica) 2 ~ 5 wt%, EVA Emulsion 0.5 ~ 1 wt%, water soluble polymer crosslinker (SB latex, butyl latex, acrylic latex) Either) 5-10 wt%, calcium carbonate (bicarbonate) 25-35 wt%, cement 3-7 wt%, sedimentation inhibitor (either polyamide-based, polyolefin-based) 1-2 wt%.

Since the composition and manufacturing method of the second type soft rubber asphalt coating material are described above, they are omitted.

In this way, by using the soft rubber asphalt coating material, there is no need to wait for the time to harden the coating material as in the prior art, and the subsequent work can be performed immediately after the application of the soft rubber asphalt coating material so that the air can be shortened significantly. do.

The soft rubber asphalt coating material for the first and second types, namely for floor coating and wall coating, is preferably coated with 1 to 2 kg / m 2 using a rubber rod or the like.

The second and fourth waterproof sheets are a nonwoven fabric, asphalt impregnated nonwoven fabric, felt, PET, PE film, rubber asphalt sheet, or a nonwoven fabric attached or coated with any one of urethane, nylon, hot melt, PE, PET resin Any sheet selected from the sheets can be used.

When a composite sheet having a barrier layer made of any one of urethane, nylon, hot melt, PE, and PET resin is used for the nonwoven fabric, the nonwoven fabric is in contact with the soft rubber asphalt coating material described above to allow sufficient impregnation of the coating material. In addition, the blocking layer is formed on the upper portion to prevent the upper leakage of the coating material. In addition, the application of such a composite sheet can secure mechanical properties and tensile strength that the coating material does not have. This makes it possible to form a robust waterproof structure without disturbing subsequent work.

As such, various types of waterproof sheets may be used for the first and second types of soft rubber asphalt coating materials, and the flexible rubber asphalt coating materials and waterproof sheets may be combined in various combinations according to the conditions of the construction site and the preference of the installer. It can be laminated.

For example, in the case of a lot of behavior such as PC slab, deck slab, etc., or during the winter and rainy season, it is formed of the first type of soft rubber asphalt coating material, that is, the soft rubber asphalt coating material layer 100 for floor coating. After installing the composite sheet having the blocking layer of the nylon sheet as the first waterproof sheet 200, the second soft rubber asphalt coating layer 300 is formed of any one of the first type and the second type of soft rubber asphalt coating layer. Formed as one, if the second waterproof sheet 400 is formed of a PET film sheet, it may be suitable for the construction of a lot of site, winter, rainy season. The soft rubber asphalt coating material of the first type or the second type basically has cold resistance which does not break even at minus 30 ° C., and its basic physical properties are excellent in elongation and elastic restoring force, especially in the first type, namely, soft rubber asphalt for floor coating. In the case of a system coating material, it has the characteristic of excellent adhesive force even in wet conditions.

According to the present invention, not only can the follow-up work proceed immediately by using the soft rubber asphalt coating material, but also the first type of workability-oriented floor having low viscosity depending on the conditions of the construction site, climatic conditions, or the preference of the installer. There is an advantage in that it is possible to select and use the second type, that is, wall coating, for which application or drying is fast and to which the thixotropy is imparted.

2 is a view schematically showing a method for constructing a waterproof sheet with overlapping joints according to an embodiment of the present invention. As shown, the first waterproof sheet 200 is installed to have an overlapping section a with the other first waterproof sheet 200 when the first waterproof sheet 200 is installed on the first soft rubber asphalt coating layer 100. In the case of the second waterproof sheet 400 installed through the second soft rubber asphalt-based coating material 300 to the upper portion of the first waterproof sheet 200, the overlapping section with the other second waterproof sheet 400 is also (a It is constructed to have). This is because the joint part between the waterproof sheets is fragile and there is a risk of breakage during or after construction, so as to reinforce it with sufficient overlapping joints. The overlapping section is preferably about 50 mm or more.

When installing the second waterproof sheet 400, it is advantageous to achieve a robust waterproof structure by installing the second waterproof sheet 400 in a direction crossing the installation direction of the first waterproof sheet 200, such as "+".

3 is a view showing a waterproof structure that can be applied to the site that requires the performance of the weather.

First, the waterproof structure of FIG. 1 is formed of the first soft rubber asphalt coating material 100, the first waterproof sheet 200, the second soft rubber asphalt coating material 300 and the second waterproof sheet 400. The PET film sheet 500 is constructed as a butt joint, but the joint is additionally covered by the adhesive film 600 after the root inhibitor P is applied to the joint. The adhesive film 600 is formed by applying an acrylic pressure-sensitive adhesive on the bottom and a high elastic film formed of a combination of a urethane and a special polymer on the upper portion of the PET film sheet 500 coated with a root inhibitor (P) therebetween. The connection is formed to finish. Therefore, the rooting performance required at the joint part can be secured perfectly.

When the PET film sheet 500 is used on the top, not only the physical performance of tensile strength, impact resistance, puncture resistance, cold resistance, etc. is improved, but also excellent adhesion to the coating material and provide sufficient protection for the waterproof structure. Not only that, but also the rapid progress of subsequent processes has the advantage.

Therefore, according to the present invention, since the soft rubber asphalt-based coating material is used as the coating material, the subsequent process can be immediately proceeded without having to wait for the curing time and proceed with the subsequent process, as well as providing a solid waterproof by laminating the coating material and the waterproof sheet. A structure can be formed.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Accordingly, such modifications or variations are intended to fall within the scope of the appended claims.

100: first soft rubber asphalt coating film layer
200: first waterproof sheet
300: second soft rubber asphalt coating film layer
400: second waterproof sheet
500: PET film sheet
600: adhesive film

Claims (5)

delete delete A first soft rubber asphalt-based coating material layer 100 applied on the concrete base layer;
A first waterproof sheet 200 disposed on an upper portion of the first soft rubber asphalt coating layer 100;
A second soft rubber asphalt based coating material layer 300 applied on the first waterproof sheet 200;
A second waterproof sheet 400 disposed on an upper portion of the second soft rubber asphalt based coating material layer 300; And
The first soft rubber asphalt based coating material layer 100 and the second soft rubber asphalt based coating material layer 300 are formed of any one of a plurality of soft rubber asphalt based coating materials having a difference in thixotropy, viscosity, elastic force, and elongation. and,
The first waterproof sheet and the second waterproof sheet is attached to any one of a nonwoven fabric, asphalt impregnated nonwoven fabric, felt, PET, PE film, rubber asphalt sheet, or nonwoven fabric, urethane, nylon sheet, hot melt, PE, PET resin or In the non-exposed composite waterproof structure using the soft rubber asphalt-based coating material formed of any one selected from the coated composite sheet,
The plurality of soft rubber asphalt coating films are first or second type soft rubber asphalt coating films,
The first type of soft rubber asphalt coating film material, straight asphalt 25 ~ 35 wt%, Hydro treated lube base oil (3-7 wt%), Fast drying petroleum solvent (Aliphatic hydrocarbon-based) 5 ~ 15 wt% , 2 ~ 5 wt% of thixotropic reinforcements (any one of talc, disintegrated stone, silica), 0.5 ~ 1 wt% of EVA Emulsion, 5 ~ 10 wt% of water-soluble polymer crosslinker (any one of SB latex, butyl latex, acrylic latex), Calcium carbonate (heavy carbon) 25-35 wt%, cement 3-7 wt%, sedimentation inhibitor (either polyamide-based or polyolefin-based) 1-2 wt%,
The soft rubber asphalt coating film of the second type, straight asphalt 25 ~ 35 wt%, Hydro treated lube base oil 3 ~ 5 wt%, Fast drying petroleum solvent (Aliphatic hydrocarbon type) 3 ~ 10 wt% , 0.2 ~ 0.5 wt% of organic acid (high molecular weight unsaturated polycarbonic acid), 5 ~ 10 wt% of thixotropic reinforcement (any one of talc, disintegrated stone and silica), 0.5 ~ 1 wt% of EVA Emulsion, water-soluble polymer SB latex, butyl latex, or any one of acrylic latex) 5-10 wt%, calcium carbonate (bicarbonate) 25-35 wt%, cement 3-7 wt%, sedimentation inhibitor (polyamide-based, polyolefin-based) 1 Unexposed composite waterproof structure using soft rubber asphalt coating material, characterized in that consisting of ~ 2 wt%.
The method of claim 3,
The first soft rubber asphalt coating layer 100 is a straight asphalt 25 ~ 35 wt%, Hydro treated lube base oil (3-7 wt%), Fast drying petroleum solvent (Aliphatic hydrocarbon-based) 5 ~ 15 wt %, Thixotropic reinforcements (either talc, disintegrated stones, silica) 2 ~ 5 wt%, EVA Emulsion 0.5 ~ 1 wt%, water soluble high molecular weight crosslinker (any one of SB latex, butyl latex, acrylic latex) 5 ~ 10 wt% , 1 to 2 wt% of calcium carbonate (heavy carbon), 3 to 7 wt% of cement, and 1 to 2 wt% of antisettling agent (either polyamide or polyolefin). ,
The first waterproof sheet 200 is formed of a composite sheet attached to the non-woven fabric nylon sheet,
The second soft rubber asphalt coating layer 300 is 25 to 35 wt%, hydrogen treated lube base oil 3 to 5 wt%, fast drying petroleum solvent (Aliphatic hydrocarbon type) 3 to 10 wt%, 0.2 ~ 0.5 wt% of organic acid (high molecular weight unsaturated polycarbonic acid), 5 ~ 10 wt% of thixotropic reinforcement (any one of talc, disintegrated stone, silica), 0.5 ~ 1 wt% of EVA Emulsion, water soluble polymer crosslinking agent (SB 5 to 10 wt% of latex, butyl latex or acrylic latex), 25 to 35 wt% of calcium carbonate (heavy carbon), 3 to 7 wt% of cement, antisettling agent (any of polyamide or polyolefin) It is formed of a soft rubber asphalt-based coating material of the second type made of 2 wt%,
The second waterproof sheet 400 is a non-exposed composite waterproof structure using a soft rubber asphalt-based coating material, characterized in that formed of a PET film.
The method of claim 3,
It further comprises a PET film sheet is installed on the second waterproof sheet butt joint, the PET film sheet is applied to the root inhibitor to ensure the function of rooting in the joint with the neighboring PET film sheet and the adhesive film is provided thereon It is characterized in that the non-exposed composite waterproof structure using a soft rubber asphalt-based coating material.

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