KR100571292B1 - Waterproof asphalt adhesive composition and asphalt sheet waterproof construction method using the same - Google Patents

Abstract

The present invention provides an asphalt coating composition and asphalt adhesive composition which can perform a perfect adhesion between the concrete base surface and the asphalt waterproof sheet by providing the asphalt coating waterproofing and adhesion function, and asphalt from the concrete base surface by combining the asphalt adhesive composition in the general asphalt sheet waterproofing The present invention relates to a waterproof construction method which improves workability by eliminating the asphalt primer process while improving problems such as lifting and peeling of the sheet waterproof layer.

The present invention, the main material is 40 to 57wt% of Quick Drying Asphalt Compound, 15 to 25wt% of synthetic rubber adhesive, 12 to 16wt% of natural mineral fiber, 5 to 10wt% of petroleum resin, isobutyl 3 to 10 wt% of one of styrene or poly isobutylene synthetic resin is mixed, and 0.2 to 0.6 wt% of zinc stearate and 5 to 7 wt% of a petroleum solvent are added to the mixture as an auxiliary additive, and a dispersant, an antioxidant, and a plasticizer are added. To provide an asphalt adhesive composition prepared by adding at least one selected 0.2 to 0.4 wt.

In addition, the present invention is a first step of applying the above-described asphalt adhesive to the concrete base surface to a predetermined thickness; Asphalt formed by applying a rubber asphalt compound on both sides of a polyester nonwoven fabric or a polypropylene woven fabric as a center, adhering a silica sand or a polyethylene film on the upper surface, and a polyester nonwoven fabric or a peelable polyethylene film on the lower surface Laying a waterproof sheet on the asphalt adhesive; Laying a reinforcement asphalt mastic on the end of the asphalt waterproof sheet by a predetermined width, and connecting the joint portions by overlapping ends of the other asphalt waterproof sheets; A fourth step of reinforcing the watertightness of the joint by applying the asphalt mastic for reinforcement by a predetermined width on the joint end of the asphalt waterproof sheet; And it provides a coating and sheet composite waterproof construction method using the waterproof asphalt adhesive composition comprising a fifth step of finishing the pressing concrete on the asphalt waterproof sheet upper surface.

Asphalt waterproof sheet, asphalt adhesive, asphalt mastic, coating film

Description

Asphalt bond composition and sheet waterproofing construction method using the same}             

1 is a block diagram of a general asphalt waterproof sheet.

Figure 2 is a waterproof construction cross section using the asphalt waterproof sheet according to the prior art.

3 is a cross-sectional view of the coating and sheet composite waterproof construction combining a waterproof asphalt adhesive and a general asphalt waterproof sheet according to the present invention.

The present invention relates to an asphalt adhesive composition for waterproofing an underground concrete structure, such as an upper slab of a rooftop or an underground parking lot of a building, an underground exterior wall, and an asphalt sheet waterproofing method using the same. As a combination of the asphalt adhesive composition and the asphalt adhesive composition which can perform the perfect adhesion between the concrete base surface and the asphalt waterproof sheet together with the general asphalt sheet waterproofing using the asphalt adhesive composition, problems such as lifting and peeling of the asphalt sheet waterproof layer are improved. At the same time, the present invention relates to an asphalt sheet waterproof construction method using the asphalt adhesive composition to improve the workability by omitting the asphalt primer process.

In general, the conventional waterproofing method for waterproofing underground concrete structures such as roof top of building structures, upper slabs of underground parking lots or underground outer walls is based on solid brown asphalt, asphalt felt, and asphalt roofing obtained from petrochemical series. There is an eight-layer waterproofing method of asphalt using a waterproof layer made of the waterproofing material. The waterproofing method requires heating and melting solid asphalt at a high temperature, and the process is not only complicated by layering, but also the construction of vertical surfaces in underground waterproofing is impossible. In addition, problems such as lifting of the joints and adhesive parts and cracking of the waterproof layer are likely to occur, and it is difficult to find defects at the time of defect occurrence.

The waterproofing method which is widely used in recent years by improving these problems is made of a synthetic resin such as polyester nonwoven fabric or polypropylene (PP) woven fabric as the center reinforcing material as shown in Fig. 1 as an even thickness of asphalt compound mixed with asphalt on both sides. It is an improved asphalt sheet waterproofing method using a roll (ROLL) type waterproof sheet made by attaching a silica sand or a polyethylene film to the upper surface, and attaching a polyethylene film or a silicone release paper to the lower surface to have a self adhesive force.

In addition, a tar urethane coating waterproofing method using an elastic rubber coating waterproofing material in which a polyurethane resin, which is an organic polymer material, and refined tar is mixed, a water-soluble rubber asphalt coating waterproofing method, a bentonite sheet waterproofing method, and the like have been proposed and used.

In each of the waterproof construction methods presented above, in the case of the asphalt sheet waterproof construction method that is most applied in the field, the construction is carried out in the order of ground treatment-primer coating-laying asphalt waterproof sheet-waterproof layer protective mortar-pressed concrete In addition, the connecting seam of the asphalt waterproof sheet is subjected to a hot melt welding method using a torch.

Asphalt sheet waterproofing method that performs such a series of processes can be shortened by easy construction, and has the effect of forming an excellent stretch and flexible waterproof layer, while lifting due to the lack of adhesion to the concrete base surface However, peeling phenomenon occurs, and frequent defects occur due to the watertightness of the joints due to the hot melt bonding between the joints between the waterproof sheets, and it is difficult to find the defects at the time of the defects, and the maintenance cost is excessively implicated.

In order to overcome the above problems, the present applicant has proposed a double layer waterproofing film and sheet of the concrete structure of the Korean Patent Registration No. 0278173, and a double layer waterproofing method of the concrete structure of the Korean Patent Registration No. 0288327. These patents are based on gel asphalt bitumen-based asphalt mastic produced by adding and mixing a synthetic polymer resin adhesive with a high elasticity and durable inorganic filler using asphalt compounds as a main raw material, and a rubber asphalt mixture is coated on both sides of the synthetic resin. A waterproof sheet formed by bonding one of a polyethylene film and a fine yarn to the upper surface and a polyester nonwoven fabric formed on the lower surface by combining with the asphalt mastic, which completely prevents penetration of rainwater and moisture. No lifting or peeling occurs, and it is possible to maximize the double waterproofing effect of coating film and sheet by simple construction while having resistance according to concrete crack by forming coating waterproof layer with strong adhesion, elasticity and elasticity to concrete target. I am doing it.

However, these patents are similarly applied in the order of surface treatment, primer coating, asphalt coating mastic coating, waterproof sheet laying, and pressed concrete pouring. Therefore, the asphalt primer coating process carried out before applying the asphalt mastic for the coating to the base surface has a problem in that the curing time takes about 4 to 6 hours after application and thus requires a lot of construction time.

In addition, in the coating and sheet double waterproofing method using the above-mentioned waterproof film asphalt mastic and asphalt waterproof sheet, the thickness of the asphalt mastic film waterproof layer is at least 2 mm and the thickness of the waterproof sheet is about 1 to 2 mm. Forming. However, due to the combined use of asphalt mastic coating waterproofing and sheet waterproofing, this coating film and sheet double waterproofing method is somewhat disadvantageous in terms of price competition when the waterproofing material cost is compared with the existing asphalt sheet waterproofing material cost. There was a functioning problem.

Therefore, the present invention has been proposed to solve the above problems, but the asphalt compound, synthetic rubber adhesive solution, natural mineral fiber, petroleum resin, isobutylene and poly isobutylene-based synthetic resins to be prepared in the liquid phase, A waterproof asphalt adhesive composition capable of performing a complete adhesion between the concrete base surface and the asphalt waterproof sheet by providing an asphalt coating waterproof and adhesive function together; By using the asphalt adhesive composition to perform waterproof construction in combination with the existing asphalt waterproof sheet, it is possible to omit the asphalt primer process while improving problems such as lifting and peeling of the waterproof layer of the general asphalt sheet waterproofing method. The purpose is to provide an asphalt sheet waterproof construction method using an asphalt adhesive composition that can improve the workability and shorten the air.

In addition, the present invention can perform a reliable coating and adhesion function only once to apply the liquid asphalt adhesive on the base surface, by forming a waterproof layer in a two-step process of laying the asphalt waterproof sheet on the asphalt adhesive It is another object of the present invention to provide a waterproof asphalt adhesive composition and an asphalt sheet waterproof construction method using the same that can easily perform coating and sheet composite waterproof construction, and can also reduce the waterproof construction cost by minimizing the thickness of the waterproof layer.

In order to achieve the above object, the present invention is a quick drying asphalt compound (Quick Drying Asphalt Compound), but the main raw material, 15 to 25wt% synthetic rubber adhesive, 12 to 16wt% natural mineral fiber, petroleum resin 5 To provide an asphalt adhesive composition prepared by mixing -10wt% and 3-10wt% of one of isobutylene or poly isobutylene-based synthetic resin.

In the present invention, 0.2 to 0.6 wt% of zinc stearate and 5 to 7 wt% of petroleum solvent are added to the mixture as an auxiliary additive, and 0.2 to 0.4 wt of at least one material selected from a dispersant, an antioxidant, and a plasticizer is added. do.

In addition, the present invention is a quick drying asphalt compound (Quick Drying Asphalt Compound), but the main raw material, 15 to 25wt% synthetic rubber adhesive, 12 to 16wt% natural mineral fiber, 5 to 10wt% petroleum resin and iso 3-10 wt% of butylene or polyisobutylene-based synthetic resin are mixed, and 0.2 to 0.6 wt% of zinc stearate and 5 to 7 wt% of petroleum solvent are added to the mixture as an auxiliary additive, and at least one selected from a dispersant, an antioxidant, and a plasticizer. A first step of applying the above-described 0.2 to 0.4 wt% of the asphalt adhesive prepared in a liquid phase to a concrete base surface with a predetermined thickness; Asphalt waterproof sheet formed by applying SBS-improved asphalt compound on both sides of polyester nonwoven fabric or polypropylene woven fabric as a center, adhering silica sand or polyester film on the upper surface, and adhering release film or polyester nonwoven fabric on the lower surface A second step of covering the asphalt adhesive; Laying a reinforcement asphalt mastic on the end of the asphalt waterproof sheet by a predetermined width, and connecting the joint portions by overlapping ends of the other asphalt waterproof sheets; A fourth step of reinforcing the watertightness of the joint by applying the asphalt mastic for reinforcement by a predetermined width on the joint end of the asphalt waterproof sheet; And it provides an asphalt sheet waterproof construction method using the waterproof asphalt adhesive composition comprising a fifth step of finishing the pressing concrete on the asphalt waterproof sheet upper surface.

Hereinafter, with reference to the accompanying Figure 3 will be described an embodiment of the present invention;

Asphalt adhesive composition of the present invention and asphalt sheet waterproof construction method using the same to achieve the complete adhesion between the concrete base surface and the waterproof sheet, and to implement the construction properties by eliminating the primer coating process.

Prior to describing the asphalt adhesive composition of the present invention, the basic conditions of the asphalt adhesive that provides the asphalt coating waterproofing function are applied to the concrete base surface to increase adhesion to the concrete surface, and improve the bonding strength between the concrete base surface and the asphalt sheet waterproof layer. In addition, it should serve as a rubber asphalt coating waterproofing and asphalt adhesive.

In order to satisfy these conditions, the quality performance standards of asphalt roof coatings defined in ASTM D2823 are shown in Table 1 below.

TABLE 1

Test Items unit Standard value Remarks Water absorption % 1.0 or less Nonvolatile matter % 50 or more Mineral stabiligers % 5-20 Asphalt % 40 or more Mineral matter based on original mass of insoluble residue % 80 or more Heat resistance (behavior at 60 ℃) - There should be no flow or bubble. Pliability at 0 ° C - No peeling and cracking

Asphalt adhesive of the present invention to satisfy the above criteria is made of 40 ~ 57wt% quick dry asphalt compound (Quick Drying Asphalt Compound) as the main raw material, Synthetic Rubber Adhesives (Synthetic Rubber Adhesives) 15 to 25wt%, natural light It is prepared by mixing 12 to 16 wt% of asbestos fibers (Modified Cellulose fibers), 5 to 10 wt% of petroleum resin, and 3 to 10 wt% of any one of isobutylene or poly isobutylene synthetic resin.

In addition, 0.2 to 0.6 wt% of zinc stearate is added as a coadditive to the mixture material mixed above to enhance durability and flexibility, and 5 to 7 wt% of a petroleum solvent to facilitate viscosity control, workability and dispersibility. And at least one or more selected from other dispersants, antioxidants, and plasticizers.

Here, the asphalt compound is composed of 80% asphalt solids, 20% petroleum solvent (Solvent). In particular, the asphalt compound is made of cutback asphalt or blown asphalt, or a material obtained by mixing these cutback asphalt and blown asphalt.

The synthetic rubber adhesive solution is intended to impart coping with cracks, heat resistance, and adhesiveness, and when it is added below 15wt%, the elongation and adhesive strength decrease, and when it is added above 25wt%, the elongation becomes too large. At the same time the adhesive strength is lowered there is a problem that the cost increases.
In detail, the synthetic rubber adhesive (Polybutene) solution will be described as follows.
The synthetic rubber adhesive (Polybutene) solution is a variety of low by a cationic catalyst polymerization mainly composed of iso butylenes after purification of the C ₄ residue in the pyrolysis process of naphtha of petrochemical and polymerization process Non-molecular hydrocarbon liquid polymer of molecular weight, which is chemically very stable, not easily oxidized by light or heat, and also has its own adhesive strength and solubility in aliphatic, aromatic, chlorinated solvents, etc. Widely used as an tackifier.
The molecular formula of the synthetic rubber adhesive is as follows.

The natural mineral fiber is to be mixed with the synthetic rubber adhesive to give a crack resistance and to increase the adhesive strength, when added to less than 12wt% can not obtain the adhesive strength required by the present invention When added in more than 16wt%, there is a problem that the durability is worse. In the present invention, the natural mineral fiber may be made of asbestos (Asbestos Fibers) or inorganic wheeler (Modified Cellulose Fibers) processed natural stone.

The petroleum resin is to enhance the adhesive strength, increase the tensile strength, heat resistance and coating strength, when added below 5wt%, there is a problem that the tensile strength and coating film strength is lowered, when added to more than 10wt% The strength is so large that there is a problem that the possibility of cracking is very large.
In detail, the petroleum resin (Petroleum Resin) will be described below.
The petroleum resin (Petroleum Resin) is a pale yellow thermoplastic resin obtained by polymerizing unsaturated hydrocarbons, such as aliphatic olefins and diolefins, generated during the pyrolysis of petrochemical naphtha, compared with conventional aromatic hydrocarbon resins. It has almost no odor, and has excellent color and heat stability and weather resistance, and most of them are easily dissolved in aliphatic and aromatic hydrocarbon solvents. Therefore, they are adhesive agent, paint adhesive for paint, hot melt adhesive and rubber compound adhesive. It is widely used in.
The petroleum resin having the above characteristics is a mixed compound for use for adhesion. When the petroleum resin is added, the petroleum resin is not gelled and is maintained in the liquid phase.
The molecular formula of the petroleum resin is as follows.

Asphalt adhesive prepared in the above composition is applied to a predetermined thickness (about 0.5 ~ 1.0mm in the present embodiment) on the base surface instead of the primer was carried out in the conventional asphalt sheet waterproofing method, the inorganic concrete base with a waterproof film coating function Complete adhesion between cotton and organic asphalt waterproof sheet is performed.

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In addition, since the asphalt adhesive can reliably achieve the coating film and the adhesion function only by the primary coating operation of 0.5 to 1.0mm thickness, the coating film and the sheet composite waterproof construction can be easily performed.

Asphalt waterproof sheet combined with the asphalt adhesive is made of a polyester nonwoven fabric or a polypropylene woven fabric as shown in Figure 1, the SBS (Styrene-Butadiene-Styrene) improved asphalt compound (Asphalt Compound) constant on both sides thereof It is uniformly coated in thickness, and the silica sand or the polyethylene film is adhered to the upper surface of the SBS-improved asphalt compound, and the lower surface is formed by attaching the releasable polyethylene film impregnated with the asphalt adhesive.

In the asphalt waterproof sheet, the asphalt compound applied to both sides of the polyester nonwoven fabric or polypropylene woven fabric as the main base material has a structure made of SBS (Styrene-Butadiene-Styrene) improved asphalt compound excellent in mixing with asphalt, It may be made of an APP (Atactic Polypropylene) modified asphalt compound having excellent heat resistance and weather resistance when mixed.

In addition, a polyester nonwoven fabric may be attached to the lower surface of the asphalt waterproof sheet in place of the releasable polyester film.

Polyester nonwoven fabric attached to the lower surface of the asphalt waterproof sheet is impregnated in the asphalt adhesive layer to enhance the adhesion between the concrete base surface and the waterproof sheet ultimately to form an integrated coating and sheet composite waterproof layer.

Next, the manufacturing method of the asphalt adhesive of this invention is demonstrated.

40 to 57 wt% of asphalt compounds such as cutback or blown asphalt, 15 to 25 wt% of liquid synthetic rubber adhesive, 5 to 10 wt% of petroleum resin, and 3 to 10 wt% of isobutylene or poly isobutylene synthetic resin are mixed first. The polymerization reaction is carried out to make homogeneous dispersion, and the temperature and the stirring speed are appropriately adjusted to prevent the formation of resin lumps and precipitates, and the mixture is stirred for 50 to 60 minutes.

After the above raw material mixing process, 0.2 ~ 0.6wt of zinc stearate in powder form, 12 ~ 16wt% of natural mineral fiber powder, 5 ~ 7wt% of solvent, and other additives such as dispersant, antioxidant, plasticizer, etc. However, the powdered particles are completely dispersed, and continuously stirred for 50 minutes to 60 minutes so that the viscosity and mixing state of the upper and lower portions of the mixing vessel are constant to prepare a liquid asphalt adhesive (Asphalt bond).

Asphalt adhesive prepared as described above exhibits strong adhesion to any base surface such as concrete, stone, wood and metal surfaces, and also has a rubbery elasticity and a flexible coating waterproof layer even when some petroleum solvent components contained in the asphalt adhesive are volatilized and cured. It prevents the penetration of water and moisture and is not affected by alkali or acidic material, which shows the effect of durable asphalt coating and waterproofing.

The construction example of waterproofing underground concrete structures such as building roof, basement outer wall, basement floor, basement upper slab, subway, underground roadway, common ward, etc. by combining asphalt adhesive and asphalt waterproof sheet composed of the above components Referring to the following.

First, the base surface of the structure to be waterproof construction should be made as clean and smooth as possible. At this time, the corner area where the floor and the wall meet is treated with a waterproof round mortar with an inclined round surface having a diameter of 50 mm or more. In addition, since the concrete surface should be dried, it is cured until the moisture content of the base surface is less than 10%, and then the foreign substances such as oil, soil, and latencies on the base surface are removed cleanly, and the surface having large irregularities is cleaned. Perform

After the base surface cleaning work is finished, a 20 cm wide reinforcement sheet is attached to a fragile part such as a crack of a concrete structure, a drain part, a corner part of a floor and a wall, a pipe connection part, and the like, where a flaw is likely to occur. Reinforce the waterproof layer.

Next, the liquid asphalt adhesive is applied to the entire surface to be waterproofed to a thickness of about 0.5 to 1.0mm to form a coating film and an adhesive layer. In this case, a rubber spatula or a spray tool is used to apply the waterproof sheet width, but at the lower side. Applying evenly to the higher, at the same time to spread the asphalt waterproof sheet on the asphalt adhesive layer and gently pressed to form a contact with the asphalt adhesive layer to form a coating film and a composite waterproof layer.

Here, the asphalt primer application process is omitted because it is completely adhered to the concrete base surface by the excellent adhesion of the asphalt adhesive.

Next, connecting the joints (seam) between the asphalt waterproof sheet, first apply a thin layer of reinforcement asphalt mastic to the 10 cm width of the waterproof sheet end side, and then overlap the sheet on top of the sheet, the sheet joint ends By reinforcing the asphalt mastic for reinforcement with a width of about 5cm to a thickness of 2 to 3mm, it ensures the watertightness of the asphalt waterproof sheet connection joint and prevents the fall of the asphalt waterproof sheet connection joint.

The bottom and the edges of the wall are attached to the floor sheet by 10cm to the vertical plane, and the sheet coming down from the vertical wall is attached to the floor by 10cm to be doubled. The end of the asphalt waterproof sheet of the lifting is fixed by using the pressing iron, and then closed by applying a reinforcement asphalt mastic.

On the other hand, attaching the asphalt waterproof sheet on the basement outer wall surface is cut in advance by about 2m waterproof sheet is fixed using a pressing iron every 2m. Repeat the above work for walls with a height of more than 2m. If you attach the asphalt waterproof sheet without cutting, construct it with a hanging device.If the top end and the wall exceed 10m in height, press the iron every 10m. Fix it using.

Next, when the construction of the waterproofing layer is completed, the insulation polyethylene film is laid, and a waterproofing layer protective mortar or a protective cushioning material is installed thereon to prevent the waterproofing layer from being torn or broken by external force, and then the waterproofing layer pressed concrete is finished.

In the construction method of the present invention, the reinforcement asphalt mastic used to secure the watertightness of the joints between the waterproof sheets is composed of asphalt compound as the main raw material, and is mixed with synthetic polymer resin adhesive, high elastic rubber, and excellent inorganic fillers. This is a bitumen-based rubber asphalt adhesive gelated into a gel state, which is a known coating waterproofing material described in Patent No. 0278173 proposed and registered by the present applicant, and further detailed description thereof will be omitted.

The present invention for forming a waterproof layer by a series of construction process as described above to complement the disadvantages of the construction method using the conventional asphalt waterproof sheet, and meet the advantages to form a waterproof film layer on the base and at the same time waterproof on the waterproof film layer By showing the role of the adhesive with the sheet to form a fully bonded coating and sheet double waterproof layer without lifting or peeling between the concrete base surface and the asphalt waterproof sheet.

The present invention described above is not limited to the waterproofing of concrete structures, it is apparent to those skilled in the art that various substitutions, modifications, and changes are possible without departing from the technical spirit of the present invention. something to do.

As described above, according to the present invention, by applying a liquid asphalt adhesive having a waterproof and adhesive function of the rubber asphalt coating on the concrete base surface and at the same time by laying an asphalt waterproof sheet to form a waterproof layer, the asphalt sheet waterproof layer and the concrete base surface It prevents the occurrence of lifting or peeling and strengthens the watertightness of the joints by reinforcing the waterproof sheet connection seam with asphalt mastic, and improves workability and shorten the construction period by omitting the primer coating process. .

In addition, as the asphalt adhesive applied on the concrete base surface completely performs the waterproofing and bonding function even with a thickness of about 0.5 to 1mm, the thickness of the waterproof layer can be reduced to about 3mm in total, thereby reducing the waterproofing construction cost. There are other effects that can be.

Claims (6)

Quick Drying Asphalt Compound 40 to 57 wt% is the main raw material, 15 to 25 wt% synthetic rubber adhesive, 12 to 16 wt% natural mineral fiber, 5 to 10 wt% petroleum resin and isobutylene or poly iso Asphalt adhesive composition prepared by mixing 3-10 wt% of any one material of the butylene-based synthetic resin. The method of claim 1, 0.2 to 0.6 wt% zinc stearate, 5 to 7 wt% petroleum solvent, and 0.2 to 0.4 wt% of at least one selected from a dispersant, an antioxidant and a plasticizer are added to the mixture. delete Quick Drying Asphalt Compound 40 to 57 wt% is the main raw material, 15 to 25 wt% synthetic rubber adhesive, 12 to 16 wt% natural mineral fiber, 5 to 10 wt% petroleum resin and isobutylene or poly iso 3-10 wt% of one of the butylene-based synthetic resins is mixed, and 0.2-0.6 wt% of zinc stearate and 5-7 wt% of petroleum solvent are added to the mixture as an auxiliary additive, and at least one selected from a dispersant, an antioxidant, and a plasticizer. A first step of applying an asphalt adhesive prepared in a liquid phase to a concrete base surface by adding 0.2 to 0.4 wt; A second step of covering the asphalt waterproof sheet on the asphalt adhesive; A third step of applying a reinforcing asphalt mastic prepared in a gel state to a predetermined width at the end of the asphalt waterproof sheet, and connecting the joint portions by overlapping ends of the other asphalt waterproof sheet; A fourth step of applying a reinforcing asphalt mastic in a gel state to the joint end portion of the asphalt waterproof sheet by a predetermined width to reinforce the watertightness of the waterproof sheet joint; After performing the fourth step, laying an insulating polyethylene film on the upper surface of the asphalt waterproof sheet, and forming a protective layer by spreading the waterproof layer protective mortar; And The sixth step of finishing by pressing concrete on the upper surface of the waterproof layer protective mortar Asphalt sheet waterproof construction method using a waterproof asphalt adhesive composition comprising a. The method of claim 4, wherein Asphalt sheet waterproof construction method using the asphalt adhesive composition, characterized in that the thickness of the asphalt adhesive is applied on the concrete base surface in the first step is 0.5 ~ 1mm. The method according to claim 4 or 5, The asphalt mastic is Asphalt using waterproof asphalt adhesive composition comprising asphalt compound as the main raw material, but composed of bitumen-based rubberized asphalt which is gelled by adding and mixing synthetic polymer resin adhesive, high elastic rubber and durable inorganic fillers. Sheet waterproofing method.

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