KR101867987B1 - Waterstop with concrete bonding adhesives, and construction method for the same - Google Patents

Abstract

It is a waterstop that is installed at the construction joint and the expansion joint to secure the waterproof function of the underground concrete structure. It is made of adhesive and protective coating agent ), It is possible to maximize the exponential effect by completely blocking the leakage path by completely bonding the surface of the steel plate with the concrete after the concrete pouring and curing, and also, by the concrete jointing type watertight plate in which the concrete and the water- There is provided a concrete joint type waterproof plate and a method of constructing the same, which can greatly improve the waterproof performance, thereby reducing the repair cost of leakage water and minimizing the delay of the subsequent process.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete joint type water-

More particularly, the present invention relates to a concrete joint type watertight plate, and more particularly, to a watertop that is installed in a construction joint and an expansion joint to secure a waterproof function of an underground concrete structure, To a concrete joint type waterproof plate and a method of constructing the same, wherein the concrete is placed and cured after pre-applied with an adhesive and a protective coating agent at a predetermined position.

Generally, a concrete structure should have a construction part and a construction part due to its material characteristics. For example, in the case of underground structures such as subways and underground cars, it is necessary to install a waterproofing system on the construction site or the expansion joint. If such a waterproofing system does not function properly, And the durability of the concrete structure is lowered. Especially, in the case of the subway, it may cause serious problems such as stopping the operation due to leakage of water.

Specifically, when the concrete structure is constructed long or high, it is impossible to complete the construction by a single concrete pouring operation, so that the concrete is laid and cured discontinuously. For example, in order to construct an underground concrete structure with a long length and a high height, the first concrete is laid in a certain height or length direction from the reference in several steps and cured, Between the concrete and the secondary concrete inevitably, construction will occur.

In order to prevent penetration of underground water and so on, it is cured together with concrete by fixing the waterproof plate to the concrete mold before casting the concrete. In general structure of the waterproofing concrete panel, Will be described with reference to Figs. 1 and 2. Fig.

FIG. 1 is a perspective view showing a concrete waterproofing plate according to the prior art, and FIG. 2 is a plan view showing a state of a waterproofing plate when a vertical installation is performed in the concrete waterproofing plate shown in FIG.

1, a conventional waterproofing plate 10 for concrete has a middle cylindrical shrinking expansion and contraction portion 11, and a wing portion 12 is connected to upper and lower portions of the middle cylindrical shrinking expansion and contraction portion 11. The wing portion 12, Shaped projections 13 are formed on both surfaces of the base plate 11.

As shown in Fig. 2, the thus-constructed diaphragm 10 has a structure in which the diaphragm 10 is placed in a die 20 before concrete is poured in order to prevent leakage of a discontinuous interface, that is, groundwater generated in the diaphragm xx ) To cure like concrete. By doing so, leakage of water is prevented through the projecting portion 13 and the wing portion 12 of the waterproof plate.

The diaphragm 10 according to the related art is usually used in connection with a plurality of diaphragms connected to each other. The diaphragm 1 and the diaphragm may be connected in a generally fitting fashion, And the connection is made through the connecting member.

However, the above-described prior art technology has a problem that the strength of the connection is very weak, and the workability is deteriorated due to the inconvenience of the process of connecting the steel plate.

As a prior art for solving the above-mentioned problems, the Korean Registered Utility Model No. 20-394986 discloses a design of the name "connection structure of a watertight plate for a concrete structure ", which will be described with reference to FIGS. 3 and 4 .

FIG. 3 is a perspective view showing a state in which a waterproofing plate for a concrete structure according to a related art is connected to each other, and FIG. 4 is a cross-sectional view showing a state in which an adhesive is applied to the entire jointed portion of the waterproofing plate for a concrete structure shown in FIG.

Referring to FIGS. 3 and 4, the first and second waterproofing plates 30 and 40 for a concrete structure according to the related art are respectively made of a PVC material and are respectively formed with unit pieces of a predetermined size, The first and second water leveling plates 30 and 40 have a soft physical property and a wide plate shape. The first and second water leveling plates 30 and 40 are connected to each other using an adhesive 50.

The main component of the adhesive 50 for connecting the first and second water resistance plates 30 and 40 is made of butyl rubber or asphalt rubber.

Further, as shown in Fig. 4, a cover film 51 in the form of a thin transparent film is attached to the upper surface of the adhesive 50. Fig. Here, the adhesive 50 and the cover film 51 may be manufactured in a state in which they are attached in advance in the manufacturing process, or may be separately manufactured so that they can be separately attached in the course of work.

The first and second water leveling plates 30 and 40 are installed in the concrete construction process. After the first and second water leveling plates 30 and 40 are in contact with each other, The adhesive agent 50 is applied around the joint portion C of the first and second diaphragms 30 and 40.

Specifically, in the joint portion C of the first and second diaphragms 30 and 50, a coating width of 5 to 10 cm and a width of 3 to 7 mm The adhesive 50 is applied to both side portions 32 and 42 of the front portions 31 and 41 of the first and second water resistance plates 30 and 40 and the entire rear portion And the cover film 51 in the form of a thin transparent film is attached to the upper surface of the adhesive 50 so that the first and second water resistance plates 30 and 40 are connected to each other.

The joint portion C of the first and second water resistance plates 30 and 40 to which the adhesive agent 50 has been applied as described above prevents the penetration of groundwater or the like from the outside by the property of the adhesive agent 50 and the cover film 51 And it is possible to improve the workability of the concrete structure due to the excellent bonding force.

However, in the case of the conventional waterproofing plate for a concrete structure, the adhesive 50 and the cover film 51 are applied to the joint portion C of the first and second waterproofing plates 30 and 40 and connected.

On the other hand, a waterproof system should be applied to the concrete part of the underground concrete structure to ensure a satisfactory waterproof performance. Generally, various kinds of materials such as a waterproof plate, a water expansive index material and a bentonite index band A waterproof system for joints is being used.

In case of such a steel plate, it is made of materials such as polyvinyl chloride (PVC), rubber and copper. The water plate installed in the concrete should be attached to the concrete closely to prevent the movement of water. However, In many cases, a flow path is formed along the interface due to a defective state and leakage occurs. Such a waterfall plate is expected to only play a role of delaying the leakage of water by extending the passage of the water introduced through the vice or the expansion joint.

In addition, there is a water resistance plate having a structure having a water expansion index material. Such a water expansion index material absorbs groundwater and stormwater before the concrete is poured, and there is a problem in that the water expansion portion is pre- Also, even when concrete is poured, the water expansion index material absorbs the surrounding water or hydrate (specifically, the water contained in the concrete), which hinders the hydration curing of the concrete. Due to the hindrance of the concrete hydration curing, There is a problem of causing the failure of concrete around the ash.

In the case of fixing the waterproof sheet for the tunnel to the ECB or EVA waterproof sheet according to the prior art, the waterproof sheet and the waterproof sheet were damaged due to the heat fusion of the high temperature. However, In the United States. In addition, conventionally, since a waterproof sheet is bonded to a waterproof sheet at a high temperature by a hot melt adhesive, harmful gas is generated in a waterproof sheet, in particular, a waterproof sheet made of a PVC material, and the operator frequently sucks noxious gas. Gas, etc., resulting in poor working conditions in the field.

On the other hand, as another prior art, Korean Patent No. 10-981774 discloses an invention entitled "Concrete-integrated composite plate, " which will be described with reference to FIGS. 5 and 6. FIG.

FIG. 5 is a perspective view showing an inner side structure of a concrete integrated type composite waterproofing plate according to a conventional technique, and FIG. 6 is a sectional view of a tunnel installed with a concrete integrated type integrated waterproofing plate shown in FIG.

Referring to FIGS. 5 and 6, a concrete integrated composite type water-resistance plate according to the related art includes a buffer panel 74 having a valve-shaped hollow portion 74a vertically formed on one surface of a panel- A diaphragm main body 70 having a shape in which an exponent material 76 is provided on both sides in a vertical direction; And a concrete coupling sealing material 90 provided on one surface of the waterproofing plate main body 70 to adhere the waterproofing plate main body 70 to the surface of the concrete 62 so as to be integrated with each other, And a polymer and a filler.

Specifically, in the concrete integrated composite type water-resistance plate according to the prior art, the water-resistance plate main body 70 includes a rectangular panel-shaped panel portion 72 as shown in Fig. 5; A cushioning portion 74 having a valve-shaped hollow portion 74a provided vertically at a central portion of a surface of the panel portion 72, that is, a surface facing the concrete 62 to be poured; Anchor projections 80 formed on both sides of the cushioning portion 74 in the vertical direction; An exponent fixture 78 provided on both sides of the anchor protrusion 80 apart from each other, the exponent fixture part 78 having an opening at the center and an upper portion and formed with an exposing re-fixation hole 78a; A water expandable index material 76 inserted and fixed in the exponential re-fixation hole 78a; And an outer anchor projection 80 provided on one surface of the panel portion 72 so as to be positioned on both sides of the water expansive index member 76. The head portion 82 of the arrow shape is provided at the tip of the anchor projection 80 so that the pair of the engagement portions 82a are formed on both sides of the anchor projection 80 by the head portion 82 in the form of an arrow do.

The concrete coupling sealing material 90 is attached between the buffer part 74 and the anchor projection 80 and the concrete coupling sealing material 90 is attached also between the water expandable index material 76 and the anchor projection 80 do.

The water expansive exponent material (76) expands when it comes into contact with water, and is brought into close contact with the contact surface of the concrete (62) structure to maintain the sealing pressure to completely seal the voids and waterways of the joint portion to prevent leakage. The lower side of the water expandable index material (76) is formed with square wings on both sides so that it can be inserted into the index material fixing hole (78a) formed in the exponential fixing part (78).

6, the composite sheet 94 may be provided on the outer surface opposite to the inner surface provided with the exponent material 86 on both sides of the panel portion 72 of the diaphragm main body 70 .

The concrete integrated composite type steel plate according to the prior art is first subjected to a shotcrete 61 for the purpose of stabilizing the excavation surface of the tunnel ceiling immediately after tunnel excavation, for example. A nonwoven fabric (63) and a waterproof sheet are provided on the surface of the shotcrete (61). The waterproof sheet uses ECB waterproof sheet or EVA waterproof sheet. Attach the diaphragm (70) to the surface provided with the waterproof sheet.

Thereafter, the concrete 62 is cured by first placing the concrete 62 up to the cushioning portion 74 having the central valve-type hollow portion 74a of the weight plate body 70, and then the cushioning is performed on the remaining portion of the cushioning portion 74 When the concrete 62 is secondarily placed, the installation of a waterproof plate on the surface of the concrete 62 is completed. In this state, a lining joint 64 is formed between the primary cast portion of the concrete 62 and the secondary cast portion connected thereto.

According to the conventional integrated composite-type composite steel plate, when the concrete is poured into the concrete, the concrete sealing sealing material is integrated with the concrete due to the absence of the concrete and the absence of the concrete, It is possible not only to delay the fine water roads formed but also to achieve the full index. In addition, according to the conventional integrated composite type composite plate, it is possible to maximize the exponential effect of the concrete joint portion (that is, the lining joint portion) in the tunnel construction, and the concrete joint sealant can be reinforced by concrete and organic / As the water is integrated with the concrete surface, the water expansions are more firmly integrated with the concrete surface, so that the exponential efficiency can be further increased.

According to the conventional technique, the waterproofing plate used in the construction of concrete underground structures or the waterproofing plate used in the expansion joints has low or no bonding force with concrete, and a method of generating concave and convex portions such as ribs to increase the bonding force is provided. As a result, there is a problem in that it is highly likely to form a passage through which the groundwater penetrates into the interface between the steel plate and the concrete. The present invention has been made to solve the above problems, for example, in that it can be applied only to the lining portion of the tunnel, and it is difficult to apply the construction of other concrete underground structures such as underground continuous walls to the excavation or the expansion joint.

Korean Patent No. 10-981774 filed on Mar. 12, 2008, entitled "Concrete-integrated composite plate" No. 20-394986 filed on June 29, 2005, filed on June 29, 2005, design name: "connection structure of watertight plates for concrete structures" No. 20-179241 filed on Dec. 4, 1999 (filed on Dec. 4, 1999), design title: "Composite steel plate for concrete expansion joints" Registered Utility Model No. 20-291118 (filed on June 26, 2002), designation of design: "Index plate with fixed wing" Korean Unexamined Patent Publication No. 2013-9684 (published on January 23, 2013), entitled "Double-sided pressure-sensitive adhesive sheet" Korean Registered Patent No. 10-1285144 (filed on July 5, 2013), entitled "Pressure Sensitive Adhesive < Korean Registered Patent No. 10-665671 (Registered on Dec. 29, 2006), entitled "Method of applying a finishing material having a pressure-sensitive adhesive layer and its construction &

In order to solve the above-mentioned problems, the technical problem to be solved by the present invention is to provide a waterproofing plate in which a waterproofing function of an underground concrete structure is installed on a construction site, The present invention provides a concrete joint type waterproof plate and a method of constructing the same, in which the surface of a waterproofing plate is fully bonded to concrete after concrete pouring and curing, thereby completely blocking the leakage path.

Another object of the present invention is to provide a concrete joint type waterproof plate and a method of constructing the same that can significantly improve the waterproof performance of a concrete underground structure by a concrete joint type waterproof plate in which the concrete and the waterproof plate are fully bonded.

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As another means for achieving the above technical object, a method of constructing a concrete joint type waterproofing plate according to the present invention is a concrete joint type construction using a waterproofing plate in which a construction joint is installed on a construction site, A method of constructing a waterproofing plate, comprising the steps of: a) forming an adhesive layer by preliminarily providing an adhesive to a predetermined position of a waterproofing plate as a waterproofing sheet; b) forming a protective coating layer on the adhesive layer by coating a protective coating on the adhesive layer so as to protect the adhesive layer from external adherence or weathering factors until the concrete is poured; c) installing a waterproofing plate on which the adhesive layer and the protective coating layer are formed on a mold for pouring and curing concrete; d) placing and curing the concrete on the die plate with the adhesive layer and the protective coating layer formed thereon; And e) completely splicing the surface of the watertight plate and the concrete so as to completely block the leakage path, wherein the surface of the watertight plate is completely adhered to the concrete after the concrete is laid and cured, The protective coating to be coated on the protective coating layer of step b) is hydrated cement particles, and the adhesive applied on the surface of the waterproof plate for expansion joint, which is the exponent of step a), is applied to the part except for the center stretchable part, ) Step adhesive layer and the protective coating layer are formed are pre-manufactured in the factory.

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According to the present invention, since a waterproofing function of an underground concrete structure is secured, the adhesive and the protective coating agent are applied to predetermined positions on the surface of the waterproofing plate and the surface of the waterproofing plate is cured after the concrete is cured and cured. And it is possible to maximize the exponential effect by completely sealing the leakage path and completely blocking it.

According to the present invention, it is possible to greatly improve the waterproof performance of the concrete underground structure by the concrete joint type watertight plate in which the concrete and the watertight plate are completely bonded, thereby reducing the repair cost of the leakage water and minimizing the delay in the subsequent process have.

1 is a perspective view showing a conventional waterproofing plate for concrete.
Fig. 2 is a plan view showing the state of use of a waterproof plate at the time of vertical construction joining in the concrete waterproof panel shown in Fig. 1. Fig.
3 is a perspective view showing a state where waterproof plates for a concrete structure are connected to each other according to a conventional technique.
4 is a cross-sectional view showing a state where an adhesive is applied to the entire joint portion of the waterproof plate for a concrete structure shown in FIG.
5 is a perspective view showing an inner side structure of a concrete integrated type composite steel plate according to a conventional technique.
6 is a cross-sectional view of the tunnel construction with the integrated composite-type water-resistance plate shown in FIG.
7 is a vertical cross-sectional view showing a concrete joint type waterproof plate according to an embodiment of the present invention.
8 is an electron micrograph showing the interface between a steel plate and a concrete in a concrete joint type steel plate according to an embodiment of the present invention.
9 is a view illustrating a case where the concrete joint type waterproof plate according to the embodiment of the present invention is a waterproof plate for a stretch joint.
10 is a view illustrating a case where a concrete joint type waterproof plate according to an embodiment of the present invention is a waterproof joint for a joint of construction.
11 is a flowchart illustrating a method of constructing a concrete joint type metal plate according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

[Concrete joint type steel plate (100)]

FIG. 7 is a vertical sectional view showing a concrete joint type waterproof plate according to an embodiment of the present invention, and FIG. 8 is an electron micrograph showing an interface between a waterproof plate and a concrete in a concrete joint type waterproof plate according to an embodiment of the present invention.

Referring to FIG. 7, a concrete joint type water level 100 according to an embodiment of the present invention includes concrete 110, a water level plate 120, an adhesive layer 130, and a protective coating layer 140.

The concrete 110 is divided into multiple stages to form a concrete structure, and the concrete 110 is cured to form a stretch joint or a construction joint.

The water level plate 120 is installed at the extensible or contracted portion of the concrete 110 so as to block the leakage path at the time of construction of the concrete structure. At this time, the diaphragm 120 may be a diaphragm for expansion joint or a diaphragm for a joint construction.

The adhesive layer 130 is formed by pre-bonding an adhesive at a predetermined position of the water level plate 120. The adhesive layer 130 reacts with the concrete 110 when the concrete 110 is poured, ) Form a continuous connection capable of an integral behavior. The continuous connection serves to prevent the permeate water from leaking along the interface between the concrete 110 and the waterproof plate 120. In general, the adhesive 120 is provided in the form of a rubber or acrylic polymer dissolved in an appropriate solvent. For example, the adhesive 120 is applied to the waterproof plate 120, and a predetermined pressure The solvent is volatilized as time elapses, and the water resistance plate 120 and the concrete 110 are firmly adhered to each other.

In the case of an adhesive according to an embodiment of the present invention, it may be a pressure-sensitive adhesive (PSA) or synthetic adhesive, pre-applied on the plate 120, The diaphragm 120 and the concrete 110 are firmly adhered to each other. For example, the pressure-sensitive adhesive (PSA)

Styrene-isoprene-styrene, styrene-ethylene / butylene-styrene, butyl rubber and other rubber-based adhesives, rubberized asphalt, But are not limited to, Natural Rubber Adhesives, Thermoplastic Rubber Adhesives, Acrylic Adhesives, Hot Melt Adhesives, and Silicone Adhesives.

The protective coating layer 140 is formed by coating a protective coating agent on the adhesive layer 120 and protects the adhesive layer 120 from external adherence or weathering factors until the concrete 110 is poured . Here, the coating agent applied to the protective coating layer 140 may be acrylate, hydrated fine cement particles, geotextile, and the like, but is not limited thereto.

In other words, in the case of the concrete jointing type watertightness plate 100 according to the embodiment of the present invention, the adhesive layer 130 is formed by including the adhesive on the surface of the waterproofing plate 120, A protective coating is applied to form a protective coating layer 140.

In the case of the concrete jointing type watertightness plate 100 according to the embodiment of the present invention, an adhesive and a protective coating agent are sequentially applied to the surface of the water resistance plate 120, and after the concrete 110 is laid and cured, The adhesive layer 130 and the protective coating layer 140 are formed by completely bonding the adhesive layer 110 with the adhesive applied to the surface of the waterproof plate 120 to thereby form an interface between the waterproof plate 120 and the concrete 110 It is possible to completely block the movement of the water.

Meanwhile, the pressure sensitive adhesive (PSA) and the protective coating application technology according to the embodiment of the present invention are used in some pre-applied waterproofing sheets. In this case, when the concrete and the waterproof sheet are pressure- It is completely bonded with an adhesive to completely block water migration at the interface (Lateral Migration: an experiment by ASTM D5385 Modified).

It is obvious to those skilled in the art that the concrete joint type water softness plate 100 according to the embodiment of the present invention can be applied to a water softening plate of any shape and material generally used and manufactured.

FIG. 9 is a view illustrating a case where the concrete joint type waterproof plate according to the embodiment of the present invention is a waterproof plate for a stretch joint, and FIG. 10 is a view showing a case where the concrete joint type waterproof plate according to an embodiment of the present invention is a waterproof joint Fig.

As shown in Figs. 10A to 10C, the construction joint pipe 120b is of a flat shape and a shape in which a rib is provided. However, as shown in Figs. 9A to 9C, The diaphragm 120a has to act in correspondence with the contraction and expansion behavior of the concrete structure according to the temperature, so that a stretching portion such as an O character, a numeral, a U character or a U character is formed at the center of the diaphragm. Therefore, the adhesive applied to the surface of the expansion joint 120a must be applied to the portion except for the center stretchable portion.

The concrete joint type water softening plate 100 according to the embodiment of the present invention can remarkably improve the waterproof performance and durability of the concrete structure by securing the complete exponential performance in the construction part of the concrete structure or the expansion joint part of the concrete structure, It is possible to reduce the cost and prevent the delay of the subsequent process due to maintenance.

[Construction method of concrete joint type steel plate]

11 is a flowchart illustrating a method of constructing a concrete joint type metal plate according to an embodiment of the present invention.

Referring to FIG. 11, in a method of constructing a concrete jointing type waterproofing plate according to an embodiment of the present invention, an adhesive layer 120 is formed by firstly providing an adhesive agent at a predetermined position of a waterproofing plate for a construction joint or a waterproofing joint S110). For example, the pressure-sensitive adhesive (PSA) may be a styrene-isoprene-styrene (styrene-isoprene-styrene), a styrene- But are not limited to, styrene-ethylene / butylene-styrene, butyl (a copolymer of isobutylene with isoprene), and other rubber-based adhesives such as rubberized asphalt It is not.

Next, a protective coating is coated on the adhesive layer 130 to form a protective coating layer 140 (S120). The protective coating layer 140 protects the adhesive layer 120 from adhesion of foreign matter or weathering factors until the concrete 110 is poured into the protective coating layer 140. At this time, Acrylate, hydrated fine cement particles, geotextile, etc. can be used as the coating agent.

Next, a water resistance plate 120 having the adhesive layer 130 and the protective coating layer 140 formed thereon is installed on a mold (not shown) for placing and curing the concrete 110 (S130). At this time, the die plate on which the adhesive layer and the protective coating layer are formed may be pre-manufactured in the factory.

Next, the concrete 110 is laid and cured on the formwork in which the water resistance plate 120 having the adhesive layer 130 and the protective coating layer 140 are formed (S140). Here, when the concrete 110 is poured, it reacts with the concrete 110 to form continuous joints in which the waterproof plate 120 and the concrete 110 can behave integrally.

Next, the surface of the water level plate 120 and the concrete 110 are completely bonded so as to completely block the leakage path (S150). Accordingly, after the concrete 110 is laid and cured, the surface of the water level plate 120 is completely adhered to the concrete to completely block the leakage path.

Since the shape and construction method of the concrete joint type water level plate 100 according to the embodiment of the present invention is the same as that of the existing water level plate, no special technique and work force are required, so that the existing work force and installation method can be used .

Also, by using an adhesive instead of a rib to increase the bonding performance with concrete, the number and spacing of the ribs installed on the steel plate can be reduced, thereby ensuring quality due to the concrete pouring of the concrete.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: Concrete joint type steel plate
110: Concrete
120: Index plate
130: Adhesive layer
140: protective coating layer

Claims (10)

delete delete delete delete delete In order to secure the waterproof function of an underground concrete structure, a method of constructing a concrete joint type watertight plate using a watertight plate,
a) forming an adhesive layer 130 by pre-bonding an adhesive to a predetermined position of a diaphragm 120, which is a stretch jointing diaphragm 120a;
b) coating a protective coating on the adhesive layer to protect the adhesive layer 130 from external adherence or weathering factors until the concrete 110 is poured, thereby forming a protective coating layer;
c) installing a water resistance plate 120 on which the adhesive layer 130 and the protective coating layer 140 are formed on a mold for pouring and curing concrete;
d) placing and curing the concrete 110 on the mold provided with the water resistance plate 120 on which the adhesive layer 130 and the protective coating layer 140 are formed; And
e) fully joining the surface of the water level plate (120) and the concrete (110) to completely block the leakage path,
After the concrete 110 is laid and cured, the surface of the water level plate 120 is completely adhered to the concrete to completely block the leakage path,
The protective coating to be coated on the protective coating layer 140 in step b) is hydrated cement particles. The adhesive applied on the surface of the waterproofing plate 120a for expansible joint, which is the exponent of step a), is applied to a part except for the center stretchable part Wherein the adhesive layer of the steps a) and b) and the waterproof plate having the protective coating layer are pre-fabricated in a factory. The method according to claim 6,
The method of claim 1, wherein the adhesive that is pre-applied to the adhesive layer (130) in step (a) is pressure-sensitive adhesive (PSA) or synthetic adhesive. 8. The method of claim 7,
The pressure-sensitive adhesive (PSA) may be at least one selected from the group consisting of styrene-isoprene-styrene, styrene-ethylene / butylene-styrene, butyl, One of Natural Rubber Adhesives, Thermoplastic Rubber Adhesives, Acrylic Adhesives, Hot Melt Adhesives and Silicone Adhesives including rubberized asphalt is selected Wherein said method comprises the steps of: delete delete

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