KR100796019B1 - Self-adhesive composite waterproof sheet and waterproofing method of underground outer wall using the same - Google Patents

Abstract

The present invention relates to a self-adhesive composite waterproof sheet and a waterproofing method of an underground outer wall using the same, the self-adhesive composite waterproof sheet according to the present invention is disposed on the upper surface of the synthetic rubber layer and the synthetic rubber layer, the elasticity and watertightness of the synthetic rubber layer It includes a waterproof layer having a synthetic rubber surface protective layer for reinforcing properties, a waterproof protective layer bonded to the upper surface of the synthetic rubber surface protective layer and having a peeling induction layer, a release paper layer disposed on the lower surface of the synthetic rubber layer By this feature, by separating the release layer at a predetermined place and using the self-adhesive properties of the synthetic rubber layer can be easily installed regardless of the temperature without adhesive, construction cost is low and labor can be reduced In addition to the synthetic rubber layer, the elastic rubber surface protection layer of the elasticity, watertight characteristics, etc. Excitation, soundproofing, waterproof, etc. can be provided, and the waterproofing protective layer is formed of a nonwoven fabric or a woven fabric which can be designed to be smaller than the adhesive strength of the waterproofing layer and the basement outer wall, and is formed to include a peeling induction layer to protect the thermal insulation and various Even when the ground subsidence is separated, only the peeling induction layer is separated, thereby maintaining the waterproof layer, thereby preventing leakage.

Description

Self-adhesive composite waterproof sheet and waterproofing method of underground outer wall using same {Un-Vulcanized Synthetic Rubber sheets-waterproof material of Self-adhesion type and construction method using the same}

1 is a schematic cross-sectional view for explaining a waterproofing method of an underground outer wall according to the present invention;

Figure 2 is a schematic cross-sectional view showing a fracture state of the underground outer wall waterproofing layer according to the present invention during ground subsidence,

Figure 3 is a schematic cross-sectional view of the self-supporting composite waterproof sheet according to an embodiment of the present invention,

Figure 4 is a schematic cross-sectional view for explaining a waterproofing method of the basement outer wall using a self-adhesive composite waterproof sheet according to an embodiment of the present invention,

Figure 5 is a schematic cross-sectional view showing a peeling state of the peeling induction layer of the self-adhesive composite waterproof sheet according to an embodiment of the present invention when ground subsidence.

The present invention relates to a self-adhesive composite waterproof sheet and a waterproofing method of an underground outer wall using the same, and more particularly, the present invention comprises a waterproof sheet and a waterproof sheet protective material used for waterproofing the outer outer wall as a single sheet (hereinafter, , Comprising a waterproof sheet and a waterproof sheet protective material, and having at least one surface having self-adhesion and multi-functionality as a "self-adhesive composite waterproof sheet") and having the self-adhesive composite waterproof sheet having a peeling induction layer. The present invention relates to a self-supporting composite waterproof sheet which solves the problem of breaking of the waterproof sheet during ground subsidence, and a waterproofing method of the outer wall using the same.

As shown in FIG. 1, the waterproofing method of the basement outer wall according to the present invention is to sufficiently dry the concrete layer 10 of the basement outer wall, which is a base material, and then coat the primer solution with a brush or roller to form the primer layer 20. In general, after the waterproof layer 30 was formed, a PE foam layer 40 of 2 cm or more was applied to one surface of the waterproof sheet 30 by applying an adhesive 41 to one surface as a waterproof sheet protective material.

As described above, the construction of the PE foam layer 40 as the waterproof sheet protective material after the forming of the waterproof layer 30 is performed by the PE foam layer 40 as well as the PE foam layer 40 is not only damaged, but the size is limited to the PE There was a very uncomfortable problem because the foam layer (40) to be bonded to the joint one by one.

In addition, the adhesive applied to the PE foam layer 40 had a problem that the construction should be stopped because the adhesive force is lost when the temperature drops below zero in winter, the adhesive force is not attached.

In addition, since both the waterproof layer 30 and the PE foam layer 40 have smooth surfaces and large surface tensions, the PE foam layer 40 is not only completely integrated, but also the PE foam layer 40 is easily damaged by external foreign substances such as gravel sand. As shown in FIG. 2, the ground 50 backfilled after the waterproofing of the basement outer wall is separated or broken by sedimentary earth pressure, ie horizontal load and vertical load, by sinking by natural compaction or support plate subsidence and sinking together with the ground. There was a problem of causing a leak phenomenon.

In addition, the waterproof layer 30 is exposed to moisture at all times, causing a change in physical properties and failing to conform to the concrete layer 10, which is a base material, and thus, a problem of breaking the waterproof sheet due to lifting and ground cracking.

In addition, the primer layer 20 needs to be cured for a long time so that the waterproof layer 30 and the concrete layer 10 of the basement outer wall do not float, and an adhesive layer 41 is formed on the primer layer 20 and the waterproof layer 30. Since it must be painted with a brush or a roller, it takes a long time and a lot of labor, as well as a problem that harmful substances are generated in the air when applying the primer layer 20 or the adhesive layer 41. This is a problem because harmful substances are retained for a long time, especially in underground civil structures or basements of buildings, which are not well ventilated.

Therefore, the present invention was devised to solve such a problem, and an object of the present invention is to provide a self-supporting composite waterproof sheet and a basement outer wall using the same, where the waterproof layer is not broken when removing the backing portion after the natural compaction or supporting plate. It is to provide a waterproof method.

It is an object of the present invention to provide a self-adhesive composite waterproof sheet capable of constructing a waterproof layer and a waterproof protective layer at once, and a waterproofing method of an underground outer wall using the same.

It is an object of the present invention does not cause a change in physical properties even when exposed to moisture in the basement at all, the lifting phenomenon does not occur in the waterproofing protective layer joint, the waterproofing layer and the base material may not be lifted, eco-friendly self-supporting type that can be easily installed It is to provide a composite waterproof sheet and a waterproof method of the outer wall using the same.

Hereinafter, a self-supporting composite waterproof sheet and an underground outer wall waterproofing method using the same according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

3 is a cross-sectional view of a self-supporting composite waterproof sheet according to an embodiment of the present invention, Figure 4 is a cross-sectional view for explaining a waterproof method of the underground outer wall using a self-supporting composite waterproof sheet according to an embodiment of the present invention, Figure 5 is a cross-sectional view showing a peeling state of the peeling induction layer of the self-adhesive composite waterproof sheet according to an embodiment of the present invention when ground subsidence.

Referring to FIG. 3, the self-supporting composite waterproof sheet 100 according to an embodiment of the present invention is largely disposed on the waterproof layer 110 and the waterproof layer 110 to protect the waterproof layer 110. Layer 130, and a release paper layer 150 is attached to the lower surface of the waterproof layer 110 to easily transport the self-adhesive composite waterproof sheet 100 to be used in a predetermined place.

The waterproof layer 110 according to an embodiment of the present invention is composed of a synthetic rubber layer 111 and a synthetic rubber surface protective layer 113. The synthetic rubber layer 111 is formed by uniformly coating the bottom surface of the synthetic rubber surface protective layer 113 by uniformly mixing the reinforcing material, filler, anti-aging material with butyl rubber (IIR) as the main polymer.

In one embodiment of the present invention, the synthetic rubber layer 111 is preferably made of 15% by weight of butyl rubber, 10% by weight of carbon reinforcing agent, 1% by weight of plasticizer, 25% by weight of additives, and 49% by weight of a heavy filler.

The synthetic rubber layer 111 formed as described above is a non-vulcanized synthetic rubber sheet having excellent elasticity and adhesiveness without generating substances harmful to the human body in the air, and can be integrated with each other without an adhesive, excellent waterproofness, soundproofing, Anticorrosive and dustproof.

Therefore, in the self-supporting composite waterproof sheet 100 according to the embodiment of the present invention, the joint portion 101 is composed of the synthetic rubber layer 111 and the synthetic rubber surface protective layer 113 and at least two self-adhesive composites. Not only can the waterproof sheet 100 be bonded to each other without an adhesive, but also the side wall or the gap of the coating unit 103 can be sealed to prevent moisture from easily escaping.

When the total width of the self-adhesive composite waterproof sheet 100 is W ₁ , the applicator 103 has a width W ₂ smaller by the width W ₃ of the joint 101 than the total width W ₁ . Since the waterproof layer 110 has the synthetic rubber surface protection layer 113 formed on the upper surface of the synthetic rubber layer 111, even if the self-adhesive composite waterproof sheet 100 is rolled, the synthetic rubber layer 111 is released from the synthetic rubber layer 111. Since the ground layer 150 is formed, there is no inconvenience in working.

According to one embodiment of the present invention, the synthetic rubber surface protection layer 113 is provided to compensate for the tensile strength and elongation rate which is insufficient only by the synthetic rubber layer 111, a high elastic TPU (thermoplastic polyurethane) sheet or EPDM rubber sheet In addition to the excellent physical properties of the watertight and integrated waterproof layer can be formed to provide high workability and quality stability.

The synthetic rubber surface protective layer 113 is thermoplastic polyurethane (TPU), high density polyethylene (HDPE), ethylene vinyl acetate (EVA), polyvinyl chloride (PVC) and ethylene-propylene-diene copolymer (EPDM) sheet, polyethylene At least one of terephthalate (PET) films and the like can be selected and used, and preferably, an ethylene-propylene-diene copolymer (EPDM) rubber sheet is used. When the EPDM sheet is used as the synthetic rubber surface protective layer 113, it is possible to further provide the elastic rubber to the synthetic rubber layer 111 and provide a strong resistance to the behavior of the sphere due to its high tensile strength.

The commercially available EPDM sheet can be used, and preferably, the EPDM sheet prepared at the following compounding ratio is used.

No Raw material name Compound weight (gr) One EPDM7141 70 2 EPDM570C 30 3 2 kinds of zinc 5 4 Stearic acid 2 5 Dispersant WB-212 3 6 Labor 2 7 Carbon SRF 50 8 Whitening (Filling Agent) 50 9 Process oil 30 10 Accelerator BZ 2 11 TT 0.5 12 TRA 0.5 13 M 0.5 14 brimstone 1.5 15 total 247

In addition, when the thermoplastic polyurethane sheet (TPU) is used as the synthetic rubber surface protection layer 113, the elongation rate is excellent and the resistance to vibration of the structure is large, preventing fracture of the waterproof layer due to concrete cracking, and it is light and has excellent wear resistance. Therefore, it may be homogeneously coated on the synthetic rubber layer 111 to provide a high elastic soft sheet. Therefore, it can be used as a reinforcing sheet for joints, drains, through pipes, corners, etc. as a sheet capable of precise construction in any shape.

Waterproofing protective layer 130 of the self-adhesive composite waterproof sheet 100 according to an embodiment of the present invention is the first protective layer 131 and the second protective layer 133, and from the first protective layer 131 And a peeling induction layer 135 to induce peeling of the second protective layer 133.

The first and second protective layers 131 and 133 may protect and insulate the waterproof layer 110, and may include glass fiber nonwoven fabric, polyethylene (PE) nonwoven fabric, polypropylene (PP) nonwoven fabric, and polyethylene tere. At least one or more of a phthalate (PET) nonwoven fabric, a high density polyethylene (HDPE) film nonwoven fabric, or a woven fabric can be selected and used. Preferably, a polyester nonwoven fabric is used.

When the polyester nonwoven fabric is used as the first and second protective layers 131 and 133, the polyester nonwoven fabric may be easily squeezed in chemical resistance and durability, thereby reducing the overall thickness of the self-adhesive composite waterproof sheet 100. It is possible to reduce the weight, and to reduce the total weight, and even if foreign matter is pushed into the waterproof layer 110 by earth pressure, it is possible to form a sufficient protective film.

Meanwhile, according to an embodiment of the present invention, the first and second protective layers 131 and 133 of the waterproof protective layer 130 are a peeling induction layer 135 made of a mechanical bond, for example, punching or sewing. ) Therefore, it is configured to be separated when subjected to a certain earth pressure.

Specifically, when the adhesive strength of the self-adhesive composite waterproof sheet 100 according to an embodiment of the present invention is about 100% of the adhesive strength between the outer wall concrete layer 10 and the waterproof layer 110, An adhesion strength between the waterproof layer 110 and the waterproof protective layer 130 is about 80%, and between the first and second protective layers 131 and 133 of the waterproof protective layer 130, that is, a peeling induction layer. By designing the adhesion strength of the (135) to about 20% by the ground or vertical sedimentation due to the ground sedimentation peeling induction layer 135 is first to be separated and settled with the ground so that the waterproof layer 110 does not break. have.

As shown in Figure 4, according to an embodiment of the present invention, the waterproof protective layer 130 is made of a non-woven fabric, the adhesion strength between the waterproof layer 110 and the waterproof protective layer 130 and the waterproof layer 110 and Since it is significantly reduced compared to the outer wall 10, and also the synthetic rubber layer 111 and the synthetic rubber surface protective layer 113 of the waterproof layer 110 is integrated by the surface tension as described above very tightly, so the earth pressure Upon receipt, the peeling induction layer 135 of the waterproof protective layer 130 was separated, and the second protective layer 133 was separated from the first protective layer 131 to slide down.

In addition, even if several ground subsidences occur, the sedimentation of the separated peeling induction layer 135 is repeated, so that the waterproof layer 130 may be preserved.

Now will be described in detail the waterproofing method of the basement outer wall using the self-adhesive composite waterproof sheet 100 produced according to the preferred embodiment.

(Example)

In a preferred embodiment of the present invention, the self-adhesive composite waterproof sheet 100, the butyl rubber (IIR) as the main polymer in the synthetic rubber layer 111 is uniformly mixed with the reinforcing filler anti-aging material in the form of a sheet After molding, the synthetic rubber surface protective layer 113 is homogeneously coated under the flexible ethylene-propylene-diene copolymer (EPDM) sheet having a thickness of about 0.5 mm.

The waterproof layer 110 and the release paper layer 150 is about 1M wide, about 1.0mm thick. The length is about 5M or more.

The waterproof protective layer 130, the first protective layer 131 is formed of a woven or nonwoven fabric of about 4.0mm in thickness, about 95cm in width, about 5M in length, the second protective layer 133 is about 1.5mm in thickness, width It was formed to about 95cm, about 5M in length to form a peel induction layer 135 therebetween by punching. At this time, the width of the waterproof protective layer 130 is about 95cm to about 5cm less than the width of the waterproof layer 110 so that the joints 101 can be attached to each other self-adhesive composite waterproof sheet without using a tape ( 100) can be connected.

In the case of waterproofing the basement outer wall using the self-adhesive composite waterproof sheet 100 formed as described above, as shown in FIG. 4, after sufficiently drying the basement outer wall 10, the crack is repaired and the obstacle is removed. Remove and clean the dust or oil and dirt, and apply the primer layer 20, and cut the self-adhesive composite waterproof sheet 100 by a predetermined length to remove the release paper layer 150 and then attach several times Waterproofing can be done at once without going through.

In addition, by connecting the joints 101 of the self-supporting composite waterproof sheet 100 to each other it is possible to seal the joints without tape work.

In addition, the self-adhesive composite waterproof sheet 100 is non-vulcanizable, does not emit harmful substances in the air, and butyl rubber is cold-resistant to maintain adhesion even at -30 ℃, so can be waterproofed without limitation in time have.

In addition, as shown in Figure 5, when the soil receiving a predetermined or more earth pressure during settlement, the punched peeling induction layer 135 is broken, and only a plurality of peeling induction layer 135 separated once when the ground subsidence is continuously broken, By separating the second protective layer 133 from the first protective layer 131, the waterproof layer 110 may be maintained to prevent leakage.

According to an embodiment of the present invention, the present invention is the base of the outer wall that can be maintained without breaking the waterproof layer due to several ground subsidence during the natural compaction or support plate removal of the backfilled part after waterproofing the basement outer wall A waterproofing method can be provided.

According to one embodiment of the present invention, by using the self-adhesive composite waterproof sheet can be easily waterproofing the basement outer wall, it is possible to provide a waterproofing method of the basement outer wall regardless of temperature.

According to one embodiment of the present invention, it is possible to connect the joints without using a tape, the lifting phenomenon does not occur, the waterproofing layer and the base material may not be lifted, can be easily installed, volatile substances harmful to the air Since it does not emit, it is possible to provide an environmentally friendly method of waterproofing the outer wall.

According to an embodiment of the present invention, it is possible to provide a waterproofing method of the basement outer wall which is excellent in waterproofness, soundproofing, anticorrosion, and dustproofing, and construction cost is low.

Claims (11)

A waterproof layer having a synthetic rubber layer and a synthetic rubber surface protective layer disposed on an upper surface of the synthetic rubber layer to reinforce the elasticity and watertightness characteristics of the synthetic rubber layer; A waterproof protective layer bonded to an upper surface of the synthetic rubber surface protective layer, It is disposed on the lower surface of the synthetic rubber layer and includes a release paper layer detachable, The waterproof protective layer includes a first protective layer, a second protective layer, and a peeling induction layer separated by a predetermined pressure by mechanically combining the first and second protective layers, Adhesion strength between the basement outer wall and the synthetic rubber layer, adhesion strength between the synthetic rubber layer and the synthetic rubber surface protective layer, adhesion strength between the waterproof layer and the waterproof protective layer, and adhesion strength between the first and second protective layers The self-supporting composite waterproof sheet is set so that the strength is reduced to separate the mechanical bond between the first and second protective layer by the earth pressure. The method of claim 1, The synthetic rubber layer is formed by uniformly mixing the reinforcing material, filler, anti-aging material with butyl rubber (IIR) as the main polymer, the synthetic rubber layer is 15% by weight of butyl rubber, 10% by weight of carbon reinforcing agent, plasticizer 1 A self-adhesive composite waterproof sheet comprising: wt%, additive 25 wt%, and 49 wt% bicarbonate filler. The method of claim 1, The synthetic rubber surface protective layer is thermoplastic polyurethane (TPU), high density polyethylene (HDPE), ethylene vinyl acetate (EVA), polyvinyl chloride (PVC) and ethylene-propylene-diene copolymer (EPDM) sheet, polyethylene terephthalate ( Self-adhesive composite waterproof sheet used by selecting one or more types from PET) film. The method of claim 1, The first and second protective layers are glass fiber nonwoven fabric, polyethylene (PE) nonwoven fabric, polypropylene (PP) nonwoven fabric, polyethylene terephthalate (PET) nonwoven fabric, high density polyethylene ( HDPE) Self-supporting composite waterproof sheet used by selecting at least one of a film nonwoven fabric or a woven fabric. The method of claim 1, The waterproof layer is a self-supporting composite waterproof sheet having a joint, the width of the waterproof protective layer is smaller than the width of the joint portion than the width of the waterproof layer. delete Drying the base material of the basement outer wall, Arranging the base material of the basement outer wall; Applying a primer layer to the base material of the basement outer wall; A waterproof layer composed of a synthetic rubber layer and a synthetic rubber surface protective layer to reinforce the functions of the synthetic rubber layer, and a waterproof protective layer configured to protect the waterproof layer includes a first protective layer, a second protective layer, and the first and second protective layers. And a peeling induction layer separated mechanically by a predetermined pressure, and the adhesion strength of the basement outer wall and the synthetic rubber layer, the adhesion strength of the synthetic rubber layer and the synthetic rubber surface protective layer, the waterproofing layer and the Self-adhesive composite waterproof sheet set to separate the mechanical bond between the first and second protective layer by earth pressure by decreasing the adhesive strength in order of the adhesion strength of the waterproof protective layer, and the adhesion strength between the first and second protective layers. Cutting to a predetermined length and separating a release paper layer and attaching the primer layer, Waterproofing method of the basement outer wall using a self-adhesive composite waterproof sheet comprising a backfilling step. The method of claim 7, wherein The synthetic rubber surface protective layer is thermoplastic polyurethane (TPU), high density polyethylene (HDPE), ethylene vinyl acetate (EVA), polyvinyl chloride (PVC) and ethylene-propylene-diene copolymer (EPDM) sheet, polyethylene terephthalate ( Formed by selecting one or more from a PET film, etc., wherein the first and second protective layer is a waterproofing method of the basement outer wall using a self-adhesive composite waterproof sheet made of a non-woven fabric or a woven fabric to protect the waterproof layer and thermal insulation. The method of claim 7, wherein The waterproof layer has a self-supporting composite waterproof sheet, the width of the waterproof protective layer is formed smaller than the width of the joint portion than the width of the waterproof layer, a self-supporting composite waterproof sheet is coupled to the self-adhesive composite waterproof sheet by the joint portion Waterproofing method of underground exterior wall used. The method of claim 7, wherein The synthetic rubber layer of the waterproof layer is formed by uniformly mixing the reinforcing material, filler, anti-aging material with butyl rubber (IIR) as the main polymer, the synthetic rubber layer is 15% by weight of butyl rubber, carbon reinforcing agent A method of waterproofing the basement outer wall using a self-adhesive composite waterproof sheet composed of 10% by weight, 1% by weight of plasticizer, 25% by weight of additives, and 49% by weight of heavy coal filler. The method of claim 7, wherein The first and second protective layers are glass fiber nonwoven fabric, polyethylene (PE) nonwoven fabric, polypropylene (PP) nonwoven fabric, polyethylene terephthalate (PET) nonwoven fabric, high density polyethylene ( HDPE) Waterproofing method of underground outer wall using self-adhesive composite waterproof sheet to select at least one of film nonwoven fabric or woven fabric.

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