KR101302603B1 - Waterproofing structure for concrete structure - Google Patents

Abstract

PURPOSE: A waterproofing structure for a concrete structure is provided to simplify a structure to remove gas from a waterproofing object and to protect the waterproofing object from fire. CONSTITUTION: A waterproofing structure for a concrete structure comprises a waterproofing layer (W) and a waterproofing finishing cover (90). The waterproofing layer covers a base surface (2) and a wall surface (4). A sheet waterproofing layer (W-1) forming a degasing path is installed between the bottom surface and the wall surface. The waterproofing finishing cover is installed on the wall surface and covers the edge part of the waterproofing layer covering the wall surface in order to prevent foreign substances from permeating into the degasing path. The sheet waterproofing layer is comprised of a plurality of waterproofing sheets, and the waterproofing sheets include a sheet main body and a flame retarding material.

Description

Waterproofing Structure for Concrete Structure

The present invention mainly relates to a waterproof sheet used for waterproofing a concrete structure (for example, a roof of a building, etc.), and a waterproof structure of a concrete structure using the waterproof sheet.

Generally, a concrete structure such as a roof of a building (a waterproofing object) is constructed by applying a waterproof layer on the surface thereof to prevent water leakage due to penetration of snow, rain, or acid substances from the surface into the interior of the concrete, various concrete deterioration phenomena .

Here, most of the waterproof layer is constructed by coating waterproof, which is a method of forming a waterproof coating by applying a liquid waterproofing material on the surface of the concrete structure, or by waterproofing the sheet to which the waterproof sheet is attached. However, the previous film waterproofing or sheet waterproofing had the following problems.

In general, since it is composed of a material that has a property of burning when a fire is generated, it is a great risk factor for a waterproof object in the event of a fire.

Most concrete structures are exposed to the outside. As a result, the concrete structure repeats the process of infiltration and drying of moisture (such as snow and rain), and the water remains inside the concrete structure even though the drying process has been sufficiently performed prior to constructing the waterproof layer on the surface of the concrete structure. . The remaining moisture is evaporated when the temperature rises after construction of the waterproofing layer, and is collected between the concrete structure and the waterproofing layer, and the waterproofing layer is partially swelled and lifted up by the gathering gas. . Therefore, the degassing device is mainly used to remove the gas between the concrete structure and the waterproofing layer. This method is cumbersome to apply a separate degassing device, and also inhibits the aesthetics as the degassing device protrudes above the waterproofing layer, and also fine dust. This can be a problem because desulfurization can be blocked by dust, yellow dust and other debris.

Korea public utility model 2010-0000340 Korea Patent No. 1077657

It is an object of the present invention to provide a waterproof structure that ensures relatively low flammability and compensates for vulnerabilities to acid rain.

Another object of the present invention is to provide a waterproof structure that is advantageous for removing gas and / or moisture present between the waterproof object.

The problem to be solved by the present invention is not limited to the above problem, and other problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

According to an embodiment of the invention, the sheet body; There is provided a waterproof sheet which is laminated on any one or both of the upper and lower surfaces of the sheet body and composed of a flame retardant material having a certain thickness of flame retardancy. At this time, the sheet body is an asphalt sheet, and the flame retardant is preferably flame retardant wool (for example, wool woven from flame retardant fibers) treated to have flame retardancy by flameproof processing. In addition, the flame-retardant wool is the asphalt sheet by a waterproofing agent having a resin (acryl-urethane copolymer emulsion resin) prepared by the method comprising the following three steps of a), b) and c) It is preferably attached to.

a) 10 to 40% by weight of a fluorine-containing acrylic monomer in the presence of a radical initiator in a hydrophilic organic solvent; 5 to 30% by weight of a monomer having a carboxyl group; (Meth) acrylic acid ester is polymerized to prepare a random copolymer having an average molecular weight of 10,000 to 30,000,

b) addition polymerization of 3 to 25% by weight of a monomer containing an epoxy group to 75 to 97% by weight of the first-step reaction product (based on the non-volatile component) in the presence of a radical polymerization inhibitor and an addition polymerization catalyst;

c) adding the alkali and water to the second-step reaction product to prepare a polar reactive emulsifier solution; 20 to 35% by weight of the second-step reaction product (based on non-volatile content) in the presence of a chain transfer agent; 0.1-5% by weight unsaturated silane monomer; Acrylates such as vinyl acetate, styrene, divinylbenzene, acrylamide, N-butyl methacrylamide, isobutyl methacrylamide, N-methylol acrylamide, N, N-dimethylacrylamide, hydroxyethyl acrylate, 60 to 79.9% by weight of a monomer selected from acrylate, hydroxyethyl methacrylate, hydroxypropyl methacrylate, Vioba (manufactured by Cells, The Netherlands) or a mixture thereof is emulsified and polymerized at an average molecular weight of 20,000 to 50,000 step

According to the embodiment of the present invention, the base and the base are covered over a certain height of the wall surface, and at least one point is fixed to the base and the wall by the fixing means, respectively, A waterproof layer having a sheet waterproof layer for providing a degassing furnace; Concrete installed on the wall and including a waterproof layer finishing cover that covers the edge portion of the waterproof layer on the edge portion of the waterproof layer covering the wall so that foreign matter penetration into the degassing through between the wall surface and the sheet waterproof layer is blocked. Structure waterproofing is provided.

The sheet waterproof layer is preferably laminated with the sheet waterproof layer to form the waterproof layer.

The sheet waterproofing layer includes: a plurality of waterproof sheets disposed adjacent to and opposed to each other so as to cover the base surface and the wall surface so as to be adjacent to each other; And a band-shaped joint attached to the waterproof sheet along adjacent portions of the adjacent waterproof sheet.

Here, the waterproof sheet of the sheet waterproof layer is formed by overlapping adjacent waterproof sheets and end portions adjacent to each other, and in order to make the overlapped portions coplanar, a lower side jaw portion is provided at the lower portion along one of the two end portions And an upper jaw portion formed to correspond to the lower jaw portion at the upper portion along the other of the both ends and overlapped with the lower jaw portion of the neighboring waterproof sheet. Such a waterproof sheet comprises: an asphalt sheet provided with both the upper jaw portion and the lower jaw portion at both ends; A flameproof wool which is laminated on the asphalt sheet and has a predetermined thickness and is treated so as to have flame retardancy by flameproofing; And a release film adhered to the lower side of the asphalt sheet and facing the base surface and the wall surface. At this time, it is preferable to use a waterproofing agent having an acrylic urethane copolymer emulsion resin as mentioned above for attaching the flame-retardant wool to the asphalt sheet.

In addition, the joint may be attached by a waterproofing agent configured to have a porous network structure and applied along adjacent portions of the adjacent waterproof sheet. At this time, as the waterproof agent for attaching the joint, it is preferable to use a type having the above-mentioned acrylic urethane copolymerization emulsion resin.

The sheet waterproofing layer fixing means on the base surface includes: a pressing disk for pressing the sheet waterproof layer against the base surface; A fixed anchor for fixing the pressure disk to the base surface; And a disc cover attached on the sheet waterproof layer to cover the pressure disk fixed by the fixing anchor. The means for fixing the sheet waterproofing layer to the wall surface may include a pressing bar disposed along the edge portion of the waterproof layer to press the waterproof layer against the wall surface and covered by the waterproof layer finish cover; And a plurality of fixed anchors for fixing the pressure bar to the wall surface.

Preferably, the waterproof layer finish cover is made of a material having elasticity, and the edge portion of the waterproof layer is covered by the lower portion in a suspended state as the upper portion is fixed to the wall surface. It is preferable that the gap between the upper surface of the waterproof layer finish cover (that is, the portion fixed to the wall surface) and the wall surface is finished by a waterproof treatment using silicone or the like.

Concrete structure waterproof structure according to an embodiment of the present invention is a single or a plurality of drain holes are perforated on the base surface, the through hole corresponding to the drain hole in the waterproof layer to prevent foreign matter from entering the water inlet of the drain hole Drain caps may be combined. At this time, the drain cap includes: a cap main body which covers the water inlet side of the drain hole; And a plurality of fixing legs protruding from the cap body so as to be positioned inside the drain hole. Specifically, the fixing legs are for fixing the position of the drain cap. The fixing legs are formed of a material having elasticity and spaced apart from each other toward the end, so that the fixing legs are closely attached to the inner wall of the drain hole.

Also, it is preferable that the concrete structure waterproof structure according to the embodiment of the present invention is equipped with a guide pipe at its drainage port. The induction pipe may include a tubular member and a flange provided at one end of the tubular member. The guide pipe may be mounted such that the flange intervenes between the base surface and the seat waterproofing layer in a state where the tubular member passes through the drain hole.

On the other hand, the inner circumference of the through-hole perforated in the waterproof layer and the peripheral portion thereof is preferably finished with a waterproofing agent having the aforementioned acrylic urethane copolymer emulsion resin.

According to an embodiment of the present invention, there is provided a method of manufacturing an air conditioner, comprising the steps of: drilling a drain hole on a base surface and providing a gradient on the ground surface to provide a downward slope connected to the drain hole; A step of applying a sheet waterproofing layer on the base surface and a waterproofing layer on the sheet waterproofing layer to form a waterproof layer together with the sheet waterproofing layer; A concrete structure waterproofing method is provided, comprising drilling a through hole corresponding to the already drilled drain hole in the waterproof layer and closing the inner circumference of the through hole and its peripheral portion with a waterproofing agent.

Specifically, the step of providing a waterproof layer consisting of the sheet waterproof layer and the coating film waterproof layer is constructed so that the sheet waterproof layer is covered over a certain height of the wall surface from the base surface and fixing a plurality of points of the sheet waterproof layer on the base surface and wall surface Including a process of fixing a plurality of points of the sheet waterproofing layer, between the base surface and the wall surface and the sheet waterproofing layer is provided with degassing communicating with each other and communicating with the outside. Accordingly, the waterproof method of the concrete structure according to an embodiment of the present invention is the edge portion of the waterproof layer on the edge portion of the waterproof layer covering the wall surface to block foreign matter penetration into the degassing through between the end surface of the sheet waterproof layer and the wall surface. It characterized in that it further comprises the step of installing a waterproof layer finish cover to be covered along the wall.

Means for solving the main problems of the present invention as described above will be more specific and clear through the embodiments (details for carrying out the invention) or drawings described below, and furthermore, to solve the main problems of the present invention as described above. In addition to the means, various means for solving the problems will be further presented below.

Since the present invention protects the waterproof object from fire, the degree of damage by fire can be significantly reduced. In addition, since the removal structure for the gas existing between the waterproof object is very simple, the construction is easy and the air can be significantly shortened.

1 is a cross-sectional view illustrating a waterproof structure of a concrete structure according to the present invention.
2 is a cross-sectional perspective view showing a sheet waterproofing layer of a concrete structure waterproofing structure according to the present invention.
3 is an enlarged view of a portion A in Fig.
4 is an enlarged view of a portion B of FIG. 2.
5 is an enlarged view of a portion C in Fig.
6 is an enlarged view of a portion D in Fig.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. For the sake of convenience, the size, line thickness, and the like of the components shown in the drawings referenced in the description of the present invention may be exaggerated somewhat. The terms used in the description of the present invention are defined in consideration of the functions of the present invention, and thus may vary depending on the user, the intention of the operator, customs, and the like. Therefore, the definition of this term should be based on the contents throughout the specification.

1 is a cross-sectional view showing a state where a waterproof structure of a concrete structure according to the present invention is applied to a roof of a concrete building. In FIG. 1, reference numeral 2 denotes a floor surface of a roof, It is the wall of the parapet which is built along the road.

1, the concrete structure waterproof structure according to the present invention includes a waterproof layer W composed of a sheet waterproof layer W-1 having a predetermined thickness and a waterproof layer W-2. The sheet waterproof layer W-1 is applied so as to cover the base surface 2 and the wall surface 4 at a certain height (preferably about 30 cm from the base surface). The coating water-repellent layer W-2 is applied so as to cover the entire upper surface of the sheet waterproof layer W-1.

Fig. 2 is a perspective view showing a section of the sheet waterproof layer W-1, Fig. 3 is an enlarged view of a portion A of Fig. 1, Fig. 4 is an enlarged view of a portion B of Fig. 2, , And the sheet waterproof layer (W-1) includes a plurality of waterproof sheets (20) and a joint (30). The plurality of waterproof sheets 20 are arranged adjacently to each other so as to be adjacent to each other in the width direction of the waterproof sheet 20 and the joints 30 are disposed adjacent to each other on the waterproof sheet 20, To connect the adjacent waterproof sheets 20 to each other.

The waterproof sheet 20 can be made in the form of a roll. The neighboring waterproof sheets 20 are laid so that their widthwise ends adjacent to each other are superimposed. As shown in FIG. 2, in order to prevent formation of steps due to overlapping of adjacent waterproof sheets 20, the upper jaw 20U having a predetermined width is waterproofed on either one of both widthwise ends of the waterproof sheet 20, The waterproof sheet 20 is provided along the length of the waterproof sheet 20 and the lower one of the opposite ends of the waterproof sheet 20 is formed so as to correspond to the upper chin 20U and the upper chin 20U of the adjacent waterproof sheet 20, The lower jaw portion 20L is provided along the length of the waterproof sheet 20.

According to the upper and lower jaws 20U and 20L, adjacent waterproof sheets 20 have the same plane where they are overlapped with each other. Further, the neighboring waterproof sheet 20 is restrained from moving due to the engagement action between the upper and lower jaws 20U and 20L.

The waterproof sheet 20 includes an asphalt sheet 22, a flameproof wool 24 and a release film 26, and the release film 26, the asphalt sheet 22 and the flameproof wool 24 are sequentially laminated from the lower side .

The asphalt sheet 22 is provided with upper and lower jaws 20U and 20L along its length at both ends in the width direction. The asphalt sheet 22 preferably has a thickness of about 2.5 cm or more. The asphalt sheet 22 may be a modified asphalt sheet for waterproofing construction in which polymer or the like is uniformly mixed with asphalt as a main raw material.

The flame-retardant woolen 24 protects the roof of the concrete building (i.e., the waterproof object) from fire by imparting flame retardancy to the waterproof sheet 20. [ For this purpose, the flameproof wool 24 is made of flameproofed wool. It is preferred that the flame-retardant wool 24 has a thickness of about 0.5 cm or more. In attaching the flameproof wool 24, an aqueous waterproofing agent that can be used for waterproofing the coating film is used. It is possible to attach the flameproof wool 24 by applying an aqueous waterproofing agent over the entire upper surface of the asphalt sheet 22, placing the flameproof wool 24 thereon, and then applying pressure. In this case, the aqueous water repellent agent used may be a material containing an acrylic urethane copolymer emulsion resin, or a material containing 10 to 90% by weight of an acrylic urethane copolymer emulsion resin and 90 to 10% by weight of an aqueous polyurethane dispersion .

The waterproof sheet 20 may be partially or entirely wrinkled due to the asphalt leaking from the asphalt sheet 22 of the applied waterproof sheet 20 during the high temperature summer. In the winter, when the temperature of the waterproof sheet 20 is low, The corrugated part becomes hard and cracking phenomenon may occur and it may burst. However, with the waterproofing agent comprising the acrylic urethane copolymer emulsion resin between the asphalt sheet 22 and the flame retardant wool 24, not only can the flameproof wool 24 be firmly attached on the asphalt sheet 22, It is possible to positively prevent the asphalt from the asphalt sheet 22 from leaking out onto the waterproof sheet 20 due to weatherability, elongation, chemical resistance, water resistance and heat resistance, and to ensure excellent responsiveness to temperature changes, . Further, the waterproof property of the waterproof sheet 20 can be greatly improved, and ultraviolet penetration into the waterproof sheet 20 can be prevented. In addition, these waterproofing agents are water-soluble and thus have no risk of exposure. Hereinafter, this will be described in more detail.

The release film 26 prevents the waterproof sheet 20, which is produced when the waterproof sheet 20 is manufactured in roll form, from sticking to each other between the inner and outer layers. The waterproof sheet 20 is prevented from adhering to the base surface 2 and the wall surface 4 by facing the base surface 2 and the wall surface 4 when the seat waterproof layer W-1 is applied. This will be described again later.

The material of the joint 30 is preferably a metal. Referring to FIG. 2, the joint 30 is formed in a strip shape having a certain thickness and width and is configured to have a mesh structure. The joint 30 is attached to the adjacent portion of the adjacent waterproof sheet 20 by an aqueous waterproofing agent containing the above-mentioned acrylic urethane copolymer emulsion resin. It is preferable that the waterproofing agent for attachment of the joint 30 is applied along the adjacent portion of the adjacent waterproof sheet 20 so that the waterproofing treatment is performed on the adjacent portion of the adjacent waterproof sheet 20. [

The waterproof sheet 20 may be attached by thermal fusion using asphalt. However, this causes a large amount of harmful substances to human body and environment in the process of heat fusion. As the asphalt is eluted from the joint due to the heat fusion, the joint portion may burst, and the waterproof sheet 20 joined by heat fusion may shrink or expand due to the temperature change. According to the connection structure of the joint 30 and the waterproof sheet 20 using the waterproofing agent, since the waterproofing agent is water-soluble, the waterproofing agent does not adversely affect the human body and can prevent leakage of the asphalt, It is possible to prevent the waterproof sheet 20 from being deformed due to shrinkage or expansion due to a clearance (gap) between the waterproof sheet 20 and the waterproof sheet 20. [

The waterproof sheet 20 placed on the base surface 2 is fixed by the base surface fixing means 70. A plurality of base surface fixing means (70) are provided to fix a plurality of points of the waterproof sheet (20). For example, the base surface fixing means 70 may be disposed at intervals of about 100 cm along the longitudinal direction of the waterproof sheet 20. [ 2 and 4, the base surface fixing means 70 includes a pressing disk 72 for pressing the waterproof sheet 20 against the base surface 2 and a pressing disk 72 on the base surface 2, And a fixing anchor 74 for fixing the fixing anchor. A hole through which the fixing anchor 74 penetrates is provided at the center of the pressure disk 72. The fixing anchor 74 is fixed to the base surface 2 through the through hole of the pressure disk 72 to fix the pressure disk 72 .

The fixed pressurizing disc 72 is covered by a disc cover 76 composed of the aforementioned flame retardant wool. 4, the disk cover 76 is attached on the waterproof sheet 20 with the pressure disk 72 covered. For attachment of the disk cover 76, an aqueous water repellent agent, silicon, or the like containing the above-mentioned acrylic urethane copolymer emulsion resin may be used for waterproof treatment.

3, the base sheet 2 and the sheet waterproof layer W-1 formed thereon are fixed to the base sheet 2 by the base surface fixing means 70, 1, a clearance, that is, a flow path 10 is provided. The flow path 10 can be provided more reliably by the release film 26 which prevents the phenomenon of adhering the waterproof sheet 20 to the ground surface 2 mentioned above.

The waterproof sheet 20 covering the wall surface 4 is fixed to the wall surface 4 together with the film waterproofing layer W-2 by the wall surface fixing means 80. 5 is an enlarged view of a portion C in Fig. As shown in Figs. 1 and 5, the wall surface fixing means 80 includes a pressure bar 82 and a fixed anchor 84. The pressing bar 82 is disposed along the edge portion of the waterproof layer W so as to press the waterproof layer W against the wall surface 4 and the fixing anchor 84 of the wall surface fixing means 80 is press- And is embedded in the wall surface 4. A plurality of wall surface fixing means 80 may be provided. A plurality of fixed anchors 84 may be used to fix one pressing bar 82. [

The wall surface fixing means 80 can securely fix the waterproof sheet 20 covering the wall surface 4 to only a plurality of points so that the flow path 10 is formed between the base surface 2 and the sheet waterproof layer W- And between the wall surface 4 and the edge portion of the waterproof layer W is provided between the wall surface 4 and the sheet waterproofing layer W-1, and the communication between the wall surface 4 and the edge portion of the waterproof layer W spatially communicates with the outside of the waterproof layer W .

The gas flowing toward the flow path 10 flows along the flow path 10 and flows between the wall surface 4 and the edge portions of the waterproof layer W (communication path) as moisture from the side of the substrate 2 or the wall surface 4 is evaporated. And is discharged to the outside of the waterproof layer (W).

1 and 5, the concrete structure waterproofing structure according to the present invention has a structure in which foreign matter (particularly, snow or rain) is introduced into the flow pathway 10 through the space between the wall surface 4 and the edge portions of the waterproof layer W And a waterproof finishing cover 90 for blocking penetration.

The waterproof layer finish cover 90 is provided on the wall surface 4 and covers the edge portion of the waterproof layer W along the edge portion of the waterproof layer W and covers the pressure bar 82 together. Such a waterproof layer finish cover 90 is made of a material having elasticity such as rubber. The waterproof finishing cover 90 covers the edge portion of the waterproofing layer W by the lower portion in a suspended state as the upper portion is fixed to the wall surface 4. The waterproof layer finish cover 90 thus covered remains covered due to its elastic force.

It is preferable that the gap between the wall surface 4 and the upper portion of the waterproof layer finish cover 90 is finished by waterproof treatment using silicone or the like.

The coating film waterproof layer W-2 may include a first coating film layer 40, a second coating film layer 50, and a top coating layer 60 which are sequentially stacked from the lower side. The first coating layer 40 may be composed of an aqueous water repellent agent including the above-mentioned acrylic urethane copolymerization emulsion resin, and the second coating layer 50 may be composed of a general oil-based urethane resin. Either one of the first and second coating layers 40 and 50 may be omitted depending on the operating conditions, and in the case of the remaining one of the first and second coating layers 40 and 50, general asphalt, acrylic urethane A water-repellent agent including a copolymer emulsion resin, an oil-based urethane resin, and the like. Alternatively, the top coating layer 60 may be omitted depending on the operating conditions.

In Fig. 1, reference numeral 6 denotes a drain hole. A single or a plurality of drainage holes 6 are formed in the base surface 2 before the sheet waterproofing layer W-1 is applied to form a downward slope inclined around the drainage port 6 or across the drainage hole 6 . In the process of constructing the waterproof layer W, a through hole is formed in the waterproof layer W so as to correspond to the drain hole 6 and pass through the sheet waterproof layer W-1 and the film waterproof layer W-2. Then, water (rainwater or the like) on the constructed waterproof layer W can be discharged through the drain hole 6.

6 is an enlarged view of a portion D in Fig. As shown in FIGS. 1 and 6, a drain pipe 120 for transferring the discharged water to a desired location is connected to the water outlet of the drain hole 6 (lower end of the drain hole as viewed in FIG. 6) The drain cap 200 is coupled to the water inlet (the upper end of the drain hole as viewed in FIG. 6) of the drain hole 6 to prevent foreign substances other than water from flowing into the drain hole 6. Reference numeral 120 denotes a delivery induction pipe 110 including a tubular member 112 and a flange 114 provided at one end of the tubular member 112.

The through hole of the waterproof layer (W) corresponding to the drain hole (6) is closed by the primary finishing layer (150) of an aqueous waterproofing agent including the above-mentioned acrylic urethane copolymerization emulsion resin and is laminated thereon Can be overlaid by the secondary finish layer 160 of the oil-based urethane resin.

The guide pipe 110 is installed so that the flange 114 is interposed between the base surface 2 and the sheet waterproofing layer W-1 with the tubular member 112 passing through the drain hole 6, W are discharged along the induction pipe 110 without being infiltrated into the concrete of the substrate 2. Of course, a part of the tubular member 112 of the induction pipe 110 is inserted into the discharge pipe 120, and the water from the induction pipe 110 is finally discharged along the discharge pipe 120.

The drain cap 200 includes a cap body 210 and a plurality of fixed legs 220. The cap body 210 is covered on the water inlet side of the drain 6. The plurality of fixed legs 220 protrude from the cap main body 210 so as to be positioned inside the drain hole 6 (in the induction pipe 110), and have a shape in which a gap between them is increased toward the end and is made of an elastic material. It is in close contact with the inner wall of the tube (110). That is, the drain cap 200 is that the plurality of fixed legs 220 can be spaced apart from each other by elasticity (the dotted line is closed in Figure 6) and the plurality of fixed legs 220 is lifted The position is fixed by being in close contact with the inner wall of the induction pipe 110 while trying to recover.

The construction of the concrete structure waterproofing structure having the structure as described below will be described below.

After the drainage hole 6 is drilled in the base surface 2 and the base surface 2 is subjected to a pretreatment to give a gradient so as to be inclined downward toward the drain hole 6, W-1). At this time, the sheet waterproofing layer W-1 is applied so as to cover the wall surface 4 from the base surface 2 over a certain height. The preprocessing step may include a step of arranging the substrate 2. The pretreatment step may also include a step of arranging the wall surface 4 on which the sheet waterproof layer W-1 is to be covered and then the waterproof layer finish cover 90 is to be installed.

The construction step of the sheet waterproofing layer W-1 is a step of arranging a plurality of waterproof sheets 20 on the base surface 2 so as to be adjacent to each other in the width direction of the waterproof sheet 20, (20) is fixed to the base surface (2) by using the base surface fixing means (70), and connecting the neighboring waterproof sheets (20) to each other by the joint (30).

When the construction of the sheet waterproof layer W-1 is completed, the waterproof film layer W-2 is applied on the sheet waterproof layer W-1. The construction of the film waterproofing layer (W-2) may be performed in parallel with the construction of the sheet waterproofing layer (W-1) with a time lag.

When the construction of the coating film waterproofing layer W-2 is completed, the edge portion of the waterproof layer W is fixed to the wall surface 4 by the wall surface fixing means 80 and the waterproof layer finish cover 90 is provided on the wall surface 4 And covers the edge portion of the waterproof layer (W).

In addition, when the construction of the coating layer waterproof layer W-2 is completed, the through hole corresponding to the drain hole 6 is drilled in the waterproof layer W, and the finish surface of the cut surface of the waterproof layer W due to the perforation of the through hole (waterproof) is finished. ), And then the drain cap 200 is installed in the drain port 6.

In the following, the waterproofing agent for waterproof coating of water is specifically described.

The acrylic urethane copolymer emulsion resin constituting the coating waterproofing waterproofing agent can be produced by the following method.

[Production method of acrylic urethane copolymer emulsion resin]

a) 10 to 40% by weight of a fluorine-containing acrylic monomer, 5 to 30% by weight of a monomer having a carboxyl group, and 30 to 85% by weight of a (meth) acrylic acid ester in a hydrophilic organic solvent in the presence of a radical initiator, A first step of producing a random copolymer having a molecular weight of 10,000 to 30,000

b) addition polymerization of 3 to 25% by weight of a monomer containing an epoxy group to 75 to 97% by weight of a first stage reaction product (on the basis of the nonvolatile content) in the presence of a radical polymerization inhibitor and an addition polymerization catalyst

c) Step 2: A reactive emulsifier solution of polarity is prepared by adding alkali and water to the reaction product, and in the presence of a chain transfer agent, 20 to 35% by weight of the second-step reaction product (based on the nonvolatile content) 0.1 to 5% by weight, and the following monomer (d) in an amount of 60 to 79.9% by weight, with an average molecular weight of 20,000 to 50,000

d) a polymer selected from the group consisting of vinyl acetate, styrene, divinylbenzene, acrylamide, N-butylmethacrylamide, isobutylmethacrylamide, N-methylol acrylamide, N, N-dimethylacrylamide, A monomer selected from hydroxypropyl methacrylate, hydroxypropyl methacrylate, Vioba (manufactured by Cells, The Netherlands) or mixtures thereof

Here, the first step is a step of producing a copolymer containing an acrylic monomer and a carboxyl group of the following formula (1) having an average molecular weight of 10,000 to 30,000, and in the presence of a radical initiator, in the presence of a fluorine-containing acrylic monomer , A monomer having a carboxyl group, and a (meth) acrylic acid ester.

[Formula 1]

In the general formula (1), R 1 is H or CH 3, R 2 is various alkyl groups such as methyl and ethyl, and n is the number of CF 2 groups in fluorinated acrylic.

The copolymer containing a carboxyl group and fluorine acryl of formula (1) is a characteristic material which becomes a nucleus of a final polymer substance, and enhances resistance to ultraviolet rays and weatherability.

The hydrophilic organic solvent can be used as long as it can dissolve the monomers, but it is preferable that the hydrophilic organic solvent can be emulsified without removing the solvent from the reaction system and does not generate bubbles when mixed with concrete. Examples of such hydrophilic organic solvents include methyl alcohol, ethyl alcohol, isopropyl alcohol, acetone, and methyl ethyl ketone.

The fluorine-containing acrylic monomer has a structural formula of the formula (2). For example, 2,2,2-trifluoroethyl acrylate, 2,2,3,3-tetrafluoropropylacrylate, 1H, 1H, 5H-octafluoropentyl acrylate, 1H, 2H-heptadecaprodecyl acrylate. ≪ / RTI >

(2)

In Formula 2, x is the number of CF2 in the fluorinated acrylic monomer.

The monomer having a carboxyl group is at least one selected from acrylic acid, methacrylic acid, itaconic acid, fumaric acid and maleic acid. (Meth) acrylic acid ester is at least one selected from an acrylic acid ester having methyl, ethyl, propyl, butyl, 2-ethylhexyl, heptyl, octyl, nonyl, decyl, lauryl or stearyl groups or a synchronous methacrylate.

In the second step, a reactive substance having an unsaturated group of the formula (4) is synthesized by addition polymerization of a monomer containing a first reaction product and an epoxy group of the formula (3) in the presence of a radical polymerization inhibitor and an addition polymerization catalyst, And converting the polar polymer of formula (5) by adding alkali and water to prepare a reactive emulsifier solution.

(3)

[Formula 4]

In the formulas (3) and (4), R1 is H or CH3, and PFA is as follows.

[Chemical Formula 5]

In Formula 5, R1 is H or CH3, and M is NH4, Na, K or an amine.

As the monomer containing an epoxy group, glycidyl acrylate or glycidyl methacrylate of the formula (3) is used.

The addition polymerization catalyst is selected from the group consisting of trimethylamine, triethylamine, tripropylamine, tributylamine, triamylamine, trihexylamine, triheptylamine, trioctylamine, trinonylamine, tridecylamine, tridecylamine, Select one or more from the silamine.

As the alkali, ammonia water or amine is used, and the amine is selected from methylamine, dimethylamine, ethylamine, diethylamine, propylamine, isopropylamine, butylamine, isobutylamine and isoamylamine.

The third step comprises reacting the second stage reaction product with an unsaturated silane monomer of formula (6) or (7) in the presence of a chain transfer agent, and an unsaturated silane monomer of vinyl acetate, styrene, divinylbenzene, acrylamide, Amide, isobutyl methacrylamide, N-methylol acrylamide, N, N-dimethylacrylamide, hydroxyethyl acrylate, hydroxypropyl acrylate, hydroxyethyl methacrylate, hydroxypropyl methacrylate, (Manufactured by Cellas Co. of the Netherlands) or a mixture thereof to prepare an acrylic copolymer emulsion resin having an average molecular weight of 20,000 to 50,000.

[Formula 6]

[Formula 7]

In the formulas (6) and (7), R is a methyl, ethyl or propyl group.

The chain transfer agent is selected from the group consisting of epothiol, 2-propanethiol, 1-butanethiol, 2-methyl-2-propanethiol, 2-mercaptoethanol, thiophenol, thioglycolic acid, dodecylmercaptan, Select one or more.

The emulsion resin polymerization initiator is at least one selected from the group consisting of ammonium persulfate, potassium persulfate, sodium persulfate, and sodium bisulfite as organic peroxides for general radical polymerization.

The unsaturated silane monomers of the general formulas (6) and (7) include methyltriethoxysilane, methyltriethoxysilane, vinyltrimethoxysilane, vinyltriethoxysilane, vinyltris (2-methoxyethoxysilane), 3 -Methacryloxypropyltris (2-methoxyethoxy) silane, 2- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, 3-mercaptopropylsilane, Trimethoxysilane, 3-mercaptopropyltriethoxysilane, vinyl trichlorosilane, and methyl trichlorosilane.

The acrylic copolymer emulsion resin produced by the above process can be used as a coating film by itself, but it is more advantageous to use an aqueous polyurethane dispersion because it has low elasticity and weatherability due to temperature change.

The aqueous polyurethane dispersion constituting the coating waterproofing waterproofing agent can be prepared by the following steps.

[Production method of aqueous polyurethane dispersion]

a) reacting an acid with a polyol having an average molecular weight of 1,000 to 4,000 and a hydroxyl value of 10 to 100

b) reacting with a diisocyanate to prepare a compound having an NCO end (prepolymer)

c) neutralizing with an alkali (amine) and adding water to prepare an ionomer prepolymer in aqueous solution

d) polymerizing by adding a chain extender

The aqueous polyurethane dispersion prepared by such a method has the structural formula of the formula (8).

[Formula 8]

Here, the polyol is selected from polyol polypropylene glycol having a molecular weight of 1,000 to 4,000, polytetramethylene glycol, polyester polyol having a molecular weight of 1,000 to 2,000, and dimethylol propionic acid is used as the acid.

Diisocyanate is selected from isophorone diisocyanate, 4,4'-dicyclohexylmethane diisocyanate, and cyclohexane-1,4-diisocyanate, and the alkali is selected from tributylamine isopropylamine and triethylamine, The extenders are selected from triethylenetetramine, tetraethylenepentamine, and diethylenetriamine.

The aqueous polyurethane dispersion thus prepared is a transparent liquid and has excellent compatibility with the acrylic copolymer emulsion resin. In addition, not only the aqueous urethane dispersion alone, but also the mixture coating film with the acrylic copolymer emulsion resin has high water resistance and elasticity and good adhesion.

The waterproofing agent for coating waterproofing as described above will be clarified and proved effective by the following examples and comparative examples.

Example 1

1. Preparation of acrylic copolymer emulsion resin

An acrylic copolymer emulsion resin was prepared using a reactor equipped with a stirrer, a condenser, a feed inlet and a nitrogen inlet tube.

1-1. Step 1: Preparation of fluorinated acrylic copolymer

The reaction solvent (A) shown in Table 1 was charged into the reactor and heated to 70 占 폚 while refluxing nitrogen blowing for 1 hour.

On the other hand, after the monomer (B) was mixed in a separate vessel, 20 g of the mixture was introduced into the reactor together with the initiator at the same time at a time, reacted for 20 minutes, and the remainder was dropped at a constant rate over 3 hours The temperature was gradually increased, so that the reflux temperature did not exceed 90 DEG C. After completion of the dropwise addition, the reaction was carried out at the same temperature for 5 hours.

Ethyl alcohol as a reaction solvent was added so as to have a nonvolatile content of 40% by weight in order to proceed smoothly the reaction of the next step, thereby lowering the viscosity.

[Table 1]

1-2. Step 2: Preparation of reactive emulsifier

Step 1 The reaction product was cooled to room temperature, and 2 g of hydroquinone as a radical polymerization inhibitor and 36 g of glycidyl methacrylate as a monomer having 3 g of t-butylamine and an addition epoxy group as an addition polymerization catalyst were added to the reactor, and the temperature was 78 Deg.] C, and the reaction was carried out for 3 hours. (At the end of the reaction, it was proved that the acid value was decreased by using the indicator.)

Subsequently, the reaction product was cooled to 45 DEG C and 70 g of 25% aqueous ammonia was added to neutralize a part (about 40%) of the remaining carboxyl groups not participating in the addition reaction, and then water was added to the mixture so that the non- By weight.

1-3. Step 3: Preparation of acrylic copolymer emulsion resin

250 g of the second-step reaction product and 75 g of water were charged into the reactor, and nitrogen was blown in for 30 minutes and heated to 78 占 폚.

On the other hand, 190 g of water and 200 g of polyethylene oxide as a nonionic emulsifier were added to 8 g of 3-methacryloxypropyltriethoxysilane, 210 g of butylacrylate, 125 g of methyl methacrylate, 100 g of styrene and 35 g of 2-hydroxyethyl methacrylate as monomers, 8 g of nonylphenyl ether was added thereto and emulsified in a separate vessel. Then, 21 g of the mixture, 1.5 g of an aqueous solution of 5.0% ammonium persulfate and 2.5% aqueous sodium bisulfate as initiator were added to the reactor at a time, The remaining monomer mixture was reacted at 78 to 82 ° C with 20 g of 5.0% aqueous ammonium persulfate solution and 20 g of 2.5% sodium bisulfate dropwise over 4 hours. After completion of the dropwise addition, the temperature was raised to 85 ° C, Further reaction.

Subsequently, the reaction product was cooled to 40 DEG C, 1.5g of antifoaming agent (Nopco NXZ) and 0.5g of preservative (K-Thorn LX1.5) were added and the pH was adjusted to 7.0 with 25% ammonia water.

The acrylic copolymer emulsion resin prepared through the above process was a milky white emulsion liquid having a nonvolatile content of 50.01% and an arbitrary ratio to water. The average molecular weight was measured to be about 45,000. As a result of coating on glass at room temperature and drying, it was found that the continuous film formation state was good, there was no crack or pinhole, and the dried film was flexible and abundant in elasticity and elongation of 200% or more. Also, it was applied to concrete and immersed in ordinary water and seawater at room temperature for one month, and the coating film was not peeled off. Then, 10% by weight of water, sand, gravel and cement concrete mixture was mixed to make a small water tank, and waterproof test was conducted. As a result, there was no leakage of water for 6 months.

2. Preparation of aqueous polyurethane dispersion

Acrylic copolymerization Five aqueous polyurethane dispersions (hereinafter referred to as APU) were prepared according to the following procedure using a reactor for emulsion resin production.

1) Preparation of APU-1

148 g of PTMG (polytetramethylene glycol) and 102 g of DMPA (dimethylol propionic acid) were charged together with 250 g of acetone into the reactor, and nitrogen was blown and heated to 83 DEG C with stirring. Subsequently, 300 g of IPDI (isoprene diisocyanate) was added over 30 minutes, and the reaction was carried out for 3 hours. After confirming that a prepolymer at the NCO end was formed, the reaction product was cooled.

When the temperature reached 60 占 폚, 90 g of acetone was added to dilute and neutralized by charging 76 g of TEA with a neutralizing agent over 15 minutes. After cooling to 35 占 폚, 550 g of water was added to make a pre-emulsion. Subsequently, 30 g of DTA was added as a chain extender and added dropwise over 20 minutes. After further reaction for 1 hour, 340 g of the added acetone was removed, and 2 g of TMP and 740 g of water were added to obtain 1976 g of content.

2) Preparation of APU-2 to APU-5

Polyol and the like were used in the same manner as APU-1. The reactants used were summarized in Table 2 together with APU-1.

[Table 2]

* PTMG: polytetramethylene glycol, DTA: diethylene triamine, IPDI: isophorone diisocyanate, TMP: trimethylol propane, DMPA: dimethylolpropionic acid, EDA: ethylenediamine

The physical properties of APU-1 to APU-5 are shown in Table 3, and the acrylic copolymer emulsion resin prepared above was mixed with the resin at a weight ratio of 85:15 and applied to a small water tank. As a result, The water was not leaked.

[Table 3]

[Example 2]

The acrylic copolymer emulsion resin prepared by the same raw materials and method as in Example 1 and the aqueous polyurethane dispersions prepared in Example 1 were mixed and tested for properties except that the monomers were changed.

1. Preparation of acrylic copolymer emulsion resin

1-1. Step 1: Preparation of fluorinated acrylic copolymer

The same apparatus and method as in Example 1 were used to prepare the same raw materials and methods.

1-2. Step 2: Preparation of reactive emulsifier

Was prepared in the same manner as in Example 1, except that glycidyl acrylate was used instead of glycidyl methacrylate.

1-3. Step 3: Preparation of acrylic copolymer emulsion resin

Step 2 240 g of the reaction product and 85 g of water were charged into the reactor, and nitrogen was blown in for 30 minutes and heated to 78 캜.

On the other hand, 200 g of water was added to 8 g of 3-methacryloxypropyltriethoxysilane, 150 g of 2-ethylhexyl acrylate, 105 g of butylacrylate, 75 g of methyl methacrylate, 100 g of styrene and 35 g of 2-hydroxyethyl acrylate as monomers, 8 g of polyethylene oxydanonylphenyl ethyl was added as a nonionic emulsifier and mixed in a separate vessel to emulsify. Then, 21 g of the mixture and 5.0 g of an aqueous solution of ammonium persulfate and 2.5% of aqueous sodium bisulfate as initiator were added to the reactor The reaction was carried out for 20 minutes at a time, and the remaining monomer mixture was reacted with dropwise addition of 5.0 g of a 5.0% aqueous ammonium persulfate solution and 20 g of an aqueous 2.5% sodium bisulfate solution over a period of 4 hours at 78 to 82 ° C. Lt; RTI ID = 0.0 > 85 C < / RTI > for 2 hours.

Subsequently, the reaction product was cooled to 40 DEG C, and then 1.5 g of a defoaming agent (Nopco NXZ) and 0.5 g of a preservative (K-Thorn LX1.5) were added and the pH was adjusted to 7.0 with 25% ammonia water.

2. Preparation of aqueous polyurethane dispersion

Five kinds of aqueous polyurethane dispersions (APU-1 to APU-5) prepared in Example 1 were used.

The mixture of the acrylic copolymer emulsion resin prepared by the above procedure and the aqueous polyurethane dispersion APU-2 at a weight ratio of 85:15 was not separated even after being left at room temperature for 6 months, and storage stability was good. Likewise, APU-3 or less APU-5 could be used instead of APU-2.

The mixture of acrylic copolymer emulsion resin / aqueous polyurethane dispersion APU-2 was good in compatibility with concrete, and 10% by weight of cement was added to concrete to prepare a water tank. As a result, water did not permeate for 6 months . In addition, this mixture was excellent in adhesion to concrete even when mixed with an inorganic filler (including inorganic pigment) in an amount of 85:15, and even when it was applied to concrete and immersed in water, it was not peeled off for more than 6 months. APU-3 to APU-5 had the same effect as APU-2.

[Examples 3 to 5]

1. Preparation of acrylic copolymer emulsion resin

1-1. Step 1: Preparation of fluorinated acrylic copolymer

All of Examples 3 to 5 were conducted in the same manner.

100 g of methyl alcohol, 100 g of isopropyl alcohol, 100 g of ethyl alcohol and 100 g of acetone were charged as a reaction solvent in the same reactor as that of Example 1, and heated to 67 캜 while blowing nitrogen for 1 hour. 100 g of 2-ethylhexyl acrylate, 200 g of methacrylate, 150 g of butyl methacrylate, 70 g of 2,2,2-trifluoroethyl acrylate, 80 g of methacrylic acid and 5 g of benzoyl peroxide were mixed in a separate vessel, and 25 g of the mixed monomer was put into the reactor at a time And reacted at 67 ° C for 30 minutes. The remainder was dropped at a constant rate over 3 hours and 30 minutes, and after the dropping was completed, the reaction was continued at the same temperature for 4 hours and 30 minutes.

Subsequently, 500 g of ethyl alcohol as a reaction solvent was added to lower the viscosity so that the reaction in the next step proceeded smoothly, so that the nonvolatile content became 40% by weight.

1-2. Step 2: Synthesis of reactive emulsifier

All of Examples 3 to 5 were conducted in the same manner.

The first-step reaction product was cooled to room temperature, and 1 g of MEHQ and 1 g of HQ as radical polymerization inhibitors, 3.2 g of t-butylamine as an addition polymerization catalyst and 43 g of glycidyl acrylate were added to the reactor and reacted at 80 ° C for 3 hours .

Subsequently, the mixture was cooled to 45 ° C, and 75 g of 25% aqueous ammonia was added thereto to neutralize only about 45% of the residual carboxyl groups not participating in the addition reaction, and then water was added to make the nonvolatile content 30% by weight.

1-3. Step 3: Preparation of acrylic copolymer emulsion resin

Examples 3 to 5 were carried out in the same manner as in Example 1, except that the compositions of monomers were changed as shown in [Table 4].

[Table 4]

* SDBS: sodium dodecylbenzenesulfonate, 2HEMA: 2-hydroxyethyl methacrylate, MPTMS: 3-methacryloxypropyltriethoxysilane, MPTES: 3-methacryloxypropyltriethoxysilane, Veova-10 : Fatty acid vinyl monomers of Shell Co.

[Table 5] shows the physical properties of the acrylic copolymer emulsion resin prepared through the above process and the test results of the coating film.

[Table 5]

Table 6 shows the results of waterproofing with 10% by weight of cement added to concrete. However, in Table 6, only APU-3 was used as an aqueous polyurethane dispersion.

TABLE 6

●: No leak condition and good condition

■: There is no leakage phenomenon, but the color of the structure becomes thicker and it is judged that it is waterproof and water resistance is weaker than single use.

Further, an experiment was conducted in which 10% by weight of an inorganic filler was blended in an acrylic copolymer emulsion resin alone and an acrylic copolymer emulsion resin / aqueous polyurethane dispersion APU-4 blend (85:15) and used as a coating film type waterproofing agent Is shown in [Table 7].

[Table 7]

●: Maintains initial application state without peeling.

■: Some of the applied surface is swollen.

Comparative Example 1

An acrylic copolymer emulsion resin and an aqueous polyurethane dispersion were prepared in the same manner as in Example 1 using the reactive emulsifiers having the structures of formulas (8) to (11) being imported, and were mixed at a weight ratio of 85: 15.

As a result of using as a line addition type, leakage occurred within three months for both general water and seawater. As a result, when used as a back coat, swelling occurred within one week.

[Chemical Formula 9]

[Formula 10]

[Formula 11]

[Chemical Formula 12]

In the formulas (9) to (12), EO is ethylene oxide, M is a metal, and Phen is a phenyl group.

[Comparative Examples 2 to 4]

The same reactive emulsifier, initiator and additives as in Example 1 were used, and only the composition of the monomers was changed as shown in Table 8 in the production process of the acrylic copolymer emulsion resin (the third step). The addition test of the aqueous polyurethane dispersion was also carried out in the same manner as in Example 2.

[Table 8]

As a result of testing in the same manner as in Example, when used as a pre-added type, all of the water leakage occurred within a week, and when used as a thick film type, peeling started in 5 days in ordinary water and in 3 days in seawater.

The present invention has been described above, but the present invention is not limited to the embodiments disclosed in the specification and the accompanying drawings, and may be variously modified by those skilled in the art without departing from the technical spirit of the present invention.

2: Base 4: Wall
6: drain hole 10: degassing furnace
20: waterproof sheet 20L, 20U: jaw
22: Asphalt sheet 24: Refractory wool
26: Release film 30: Joint
70: base surface fixing means 72: pressure disk
74: Fixed anchor 76: Disc cover
80: wall surface fixing means 82: pressure bar
84: Fixed anchor 90: Waterproof layer finish cover
110: guide pipe 120: drain pipe
200: drain cap W: waterproof layer
W-1: sheet waterproof layer W-2: gambling waterproof layer

Claims (14)

At least one point respectively covered by a base surface 2 and a predetermined height of the wall surface 4 from the base surface 2 by fixing means 70 and 80 on the base surface 2 and the wall surface 4. A waterproof layer (W) having a sheet waterproofing layer (W-1) fixed thereto to provide a degassing apparatus (10) between the base surface (2) and the wall surface (4);
The waterproof layer (W) is installed on the wall surface (4) and covers the wall surface (4) so that foreign matter penetration into the degassing apparatus (10) between the wall surface (4) and the sheet waterproofing layer (W-1) is blocked. An edge portion includes a waterproof layer finishing cover 90 which is covered along the edge portion of the waterproof layer (W),
The sheet waterproofing layer (W-1) includes a plurality of waterproof sheets (20) covering the base surface (2) and the wall surface (4) and arranged side by side adjacent to each other and facing each other.
The waterproof sheet (20) comprises a sheet body (22); Concrete structure waterproof structure comprising a flame retardant material 24 of a predetermined thickness laminated on any one or both of the upper and lower sides of the sheet body 22 having a flame retardancy.
The method according to claim 1,
The seat body 22 is an asphalt sheet,
The flame retardant material 24 is a flame-retardant wool treated to have flame retardancy by flame-retardant processing (防焰 加工) and the asphalt sheet 22 by a waterproofing agent having a resin produced by the method comprising the following steps a) to c): Waterproof structure of concrete structure attached to the wall.
a) 10 to 40% by weight of a fluorine-containing acrylic monomer in the presence of a radical initiator in a hydrophilic organic solvent; 5 to 30% by weight of a monomer having a carboxyl group; (Meth) acrylic acid ester is polymerized to prepare a random copolymer having an average molecular weight of 10,000 to 30,000,
b) addition polymerization of 3 to 25% by weight of a monomer containing an epoxy group to 75 to 97% by weight of the first-step reaction product (based on the non-volatile component) in the presence of a radical polymerization inhibitor and an addition polymerization catalyst;
c) adding the alkali and water to the second-step reaction product to prepare a polar reactive emulsifier solution; 20 to 35% by weight of the second-step reaction product (based on non-volatile content) in the presence of a chain transfer agent; 0.1-5% by weight unsaturated silane monomer; Acrylates such as vinyl acetate, styrene, divinylbenzene, acrylamide, N-butyl methacrylamide, isobutyl methacrylamide, N-methylol acrylamide, N, N-dimethylacrylamide, hydroxyethyl acrylate, 60 to 79.9% by weight of a monomer selected from acrylate, hydroxyethyl methacrylate, hydroxypropyl methacrylate, Vioba (manufactured by Cells, The Netherlands) or a mixture thereof is emulsified and polymerized at an average molecular weight of 20,000 to 50,000 step
At least one point respectively covered by a base surface 2 and a predetermined height of the wall surface 4 from the base surface 2 by fixing means 70 and 80 on the base surface 2 and the wall surface 4. A waterproof layer (W) having a sheet waterproofing layer (W-1) fixed thereto to provide a degassing apparatus (10) between the base surface (2) and the wall surface (4);
The waterproof layer (W) is installed on the wall surface (4) and covers the wall surface (4) so that foreign matter penetration into the degassing apparatus (10) between the wall surface (4) and the sheet waterproofing layer (W-1) is blocked. Concrete structure waterproof structure comprising a waterproof layer finishing cover 90 which is covered along the edge portion of the waterproof layer (W) in the edge portion.
The method according to claim 3,
The waterproof layer finish cover 90 is made of a material having an elastic and the concrete structure waterproof structure to cover the edge portion of the waterproof layer (W) by the upper end is fixed to the wall surface (4) suspended.
The method according to claim 3, wherein the sheet waterproof layer (W-1),
A plurality of waterproof sheets 20 covering the base surface 2 and the wall surface 4 so as to be adjacent to each other and adjacent to each other and facing each other;
Concrete structure waterproof structure including a belt-shaped joint (30) attached along the adjacent portion of the neighboring waterproof sheet 20 on the waterproof sheet (20).
The method according to claim 5,
The waterproof sheet 20 is overlapped with the neighboring waterproof sheet 20 and the ends adjacent to each other, so that the overlapping portion to form the same plane, the lower jaw portion (20L) at the bottom along one of the ends of both sides Is provided, and the upper jaw portion 20U is formed to correspond to the lower jaw portion 20L at an upper portion along the other side of both ends and overlaps with the lower jaw portion 20L of the neighboring waterproof sheet 20. Structure waterproof structure.
The method according to claim 5,
The waterproof sheet 20, asphalt sheet 22 and; It is laminated on either or both of the upper and lower sides of the asphalt sheet 22, and includes a flame-retardant wool 24 of a predetermined thickness treated to have flame retardancy by flame retardant (가 加工),
The flame retardant wool 24 is waterproof structure of concrete structure attached to the asphalt sheet 22 by a waterproofing agent having a resin produced by the method comprising the following steps a) to c).
a) 10 to 40% by weight of a fluorine-containing acrylic monomer in the presence of a radical initiator in a hydrophilic organic solvent; 5 to 30% by weight of a monomer having a carboxyl group; (Meth) acrylic acid ester is polymerized to prepare a random copolymer having an average molecular weight of 10,000 to 30,000,
b) addition polymerization of 3 to 25% by weight of a monomer containing an epoxy group to 75 to 97% by weight of the first-step reaction product (based on the non-volatile component) in the presence of a radical polymerization inhibitor and an addition polymerization catalyst;
c) adding the alkali and water to the second-step reaction product to prepare a polar reactive emulsifier solution; 20 to 35% by weight of the second-step reaction product (based on non-volatile content) in the presence of a chain transfer agent; 0.1-5% by weight unsaturated silane monomer; Acrylates such as vinyl acetate, styrene, divinylbenzene, acrylamide, N-butyl methacrylamide, isobutyl methacrylamide, N-methylol acrylamide, N, N-dimethylacrylamide, hydroxyethyl acrylate, 60 to 79.9% by weight of a monomer selected from acrylate, hydroxyethyl methacrylate, hydroxypropyl methacrylate, Vioba (manufactured by Cells, The Netherlands) or a mixture thereof is emulsified and polymerized at an average molecular weight of 20,000 to 50,000 step
The method according to claim 5, wherein the waterproof sheet 20,
Asphalt sheet 22;
The concrete structure waterproof structure is attached to the lower side of the asphalt sheet 22 and comprises a release film (26) facing the base surface (2), the wall surface (4).
The method according to claim 5,
The joint 30 is constructed of a net structure and is attached by a waterproofing agent applied along an adjacent portion of the adjacent waterproof sheet 20,
The waterproofing agent waterproof structure of the concrete structure is a waterproofing agent having a resin prepared by the method comprising the following steps a) to c).
a) 10 to 40% by weight of a fluorine-containing acrylic monomer in the presence of a radical initiator in a hydrophilic organic solvent; 5 to 30% by weight of a monomer having a carboxyl group; (Meth) acrylic acid ester is polymerized to prepare a random copolymer having an average molecular weight of 10,000 to 30,000,
b) addition polymerization of 3 to 25% by weight of a monomer containing an epoxy group to 75 to 97% by weight of the first-step reaction product (based on the non-volatile component) in the presence of a radical polymerization inhibitor and an addition polymerization catalyst;
c) adding the alkali and water to the second-step reaction product to prepare a polar reactive emulsifier solution; 20 to 35% by weight of the second-step reaction product (based on non-volatile content) in the presence of a chain transfer agent; 0.1-5% by weight unsaturated silane monomer; Acrylates such as vinyl acetate, styrene, divinylbenzene, acrylamide, N-butyl methacrylamide, isobutyl methacrylamide, N-methylol acrylamide, N, N-dimethylacrylamide, hydroxyethyl acrylate, 60 to 79.9% by weight of a monomer selected from acrylate, hydroxyethyl methacrylate, hydroxypropyl methacrylate, Vioba (manufactured by Cells, The Netherlands) or a mixture thereof is emulsified and polymerized at an average molecular weight of 20,000 to 50,000 step
The method according to claim 3, wherein the sheet waterproofing layer (W-1) fixing means 70 on the base surface 2,
A pressing disk 72 for pressing the sheet waterproofing layer W-1 against the base surface 2;
A fixed anchor 74 for fixing the pressing disk 72 to the base surface 2;
Concrete structure waterproof structure including a disk cover (76) attached to the sheet waterproofing layer (W-1) to cover the pressurized disk 72 is fixed by the fixing anchor (74).
The fixing means (80) of the sheet waterproofing layer (W-1) on the wall surface (4),
A pressure bar 82 disposed along an edge portion of the waterproof layer W and covered by the waterproof layer finishing cover 90 to press the waterproof layer W against the wall surface 4;
Concrete structure waterproof structure comprising a plurality of fixed anchors (84) for fixing the pressure bar (82) on the wall surface (4).
The method according to claim 3,
At least one drain hole 6 is drilled in the base surface 2,
The waterproof layer (W) is perforated with a through hole corresponding to the drain hole (6),
The drain cap 200 is coupled to the water inlet of the drain port 6 to prevent foreign material from entering.
The drain cap (200) includes a cap body (210) covering the water inlet side of the drain hole (6); A plurality of fixed legs protruding from the cap main body 210 so as to be located inside the drain hole 6 and having a shape in which gaps are formed toward each other and formed of an elastic material closely adhere to the inner wall of the drain hole 6 ( Concrete structure waterproof structure including 220).
The method of claim 12,
The inlet pipe 110 is mounted to the drain 6,
The guide pipe 110 includes a tubular member 112 and a flange 114 provided at one end of the tubular member 112 and the base surface with the tubular member 112 penetrated through the drain hole 6. It is mounted so that the flange 114 is interposed between (2) and the sheet waterproofing layer (W-1),
The through-hole of the waterproof layer (W) is a concrete structure waterproof structure of the inner circumference and its peripheral portion is finished by a waterproofing agent having a resin produced by a method comprising the following steps a) to c).
a) 10 to 40% by weight of a fluorine-containing acrylic monomer in the presence of a radical initiator in a hydrophilic organic solvent; 5 to 30% by weight of a monomer having a carboxyl group; (Meth) acrylic acid ester is polymerized to prepare a random copolymer having an average molecular weight of 10,000 to 30,000,
b) addition polymerization of 3 to 25% by weight of a monomer containing an epoxy group to 75 to 97% by weight of the first-step reaction product (based on the non-volatile component) in the presence of a radical polymerization inhibitor and an addition polymerization catalyst;
c) adding the alkali and water to the second-step reaction product to prepare a polar reactive emulsifier solution; 20 to 35% by weight of the second-step reaction product (based on non-volatile content) in the presence of a chain transfer agent; 0.1-5% by weight unsaturated silane monomer; Acrylates such as vinyl acetate, styrene, divinylbenzene, acrylamide, N-butyl methacrylamide, isobutyl methacrylamide, N-methylol acrylamide, N, N-dimethylacrylamide, hydroxyethyl acrylate, 60 to 79.9% by weight of a monomer selected from acrylate, hydroxyethyl methacrylate, hydroxypropyl methacrylate, Vioba (manufactured by Cells, The Netherlands) or a mixture thereof is emulsified and polymerized at an average molecular weight of 20,000 to 50,000 step
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