KR101731826B1 - Fiber reinforced waterproof sheet comprising EPDM composition and waterproof method using the same - Google Patents
Fiber reinforced waterproof sheet comprising EPDM composition and waterproof method using the same Download PDFInfo
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- KR101731826B1 KR101731826B1 KR1020150077105A KR20150077105A KR101731826B1 KR 101731826 B1 KR101731826 B1 KR 101731826B1 KR 1020150077105 A KR1020150077105 A KR 1020150077105A KR 20150077105 A KR20150077105 A KR 20150077105A KR 101731826 B1 KR101731826 B1 KR 101731826B1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/64—Insulation or other protection; Elements or use of specified material therefor for making damp-proof; Protection against corrosion
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D11/00—Roof covering, as far as not restricted to features covered by only one of groups E04D1/00 - E04D9/00; Roof covering in ways not provided for by groups E04D1/00 - E04D9/00, e.g. built-up roofs, elevated load-supporting roof coverings
- E04D11/02—Build-up roofs, i.e. consisting of two or more layers bonded together in situ, at least one of the layers being of watertight composition
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Abstract
The present invention relates to a fiber-reinforced waterproof sheet comprising an EPDM composition and a waterproofing method using the fiber-reinforced waterproof sheet. More specifically, the present invention relates to a composite waterproof sheet reinforced with polyester fibers between the amounts of rubber sheets containing an EPDM composition, It is about the construction method. The composite waterproof sheet according to the present invention can be produced by reinforcing polyester fibers between the amounts of the rubber sheet containing the EPDM composition, and thus can be manufactured by simple and economical, roller press heat-sealing, excellent tensile strength, tensile stress, weather resistance , Heat resistance, ozone resistance and electrical resistance.
Description
The present invention relates to a fiber-reinforced waterproof sheet comprising an EPDM composition and a waterproofing method using the fiber-reinforced waterproof sheet. More specifically, the present invention relates to a composite waterproof sheet reinforced with polyester fibers between the amounts of rubber sheets containing an EPDM composition, It is about the construction method.
Generally, when rainwater or groundwater penetrates into a civil structure such as a roof or underground outer wall of a reinforced concrete structure, a building such as a slab of an underground parking lot, a subway communication port, and a power field, the bonding force of the concrete material is lowered, Waterproofing is a very important factor in concrete structures because void cracking occurs due to changes in volume of water, resulting in degradation of the life of buildings and civil engineering structures. Concrete structures tend to expand and shrink due to external environmental changes such as curing drying, temperature change, and climate change, and it is difficult to avoid cracking. In addition, all objects, such as concrete structures and waterproofing materials, have inherent thermal expansion coefficients, and condensation occurs due to liquefaction of gas as temperature changes. This moisture-induced condensation affects cold joints, construction joints, expansion joints and the like when concrete is laid, resulting in large and small cracks in the concrete, Breaking causes leakage. Therefore, the waterproofing material must have excellent tensile strength and various properties such as fire resistance, fire resistance, resistance to wind pressure, seismic resistance, water resistance, impact resistance, ozone resistance, abrasion resistance and weather resistance are required and waterproof property, workability, Etc. should be considered.
Conventionally, waterproofing work using a single material was generally used for convenience of construction and reduction of construction cost of waterproofing work. Recently, materials having complex performance by applying various chemical additives are being developed. The waterproofing material currently used is divided into liquid waterproofing material, coating film waterproofing material, and sheet waterproofing material. The liquid waterproofing material is collectively referred to as a waterproofing material mixed with a cement mortar or a concrete sphere. The coating material waterproofing material is an asphalt coating material, And the sheet waterproofing material is a sheet type waterproofing material and includes an asphalt sheet, a rubberized asphalt sheet, a rubber sheet, and the like. There are various kinds of waterproofing materials such as stainless steel waterproofing material and cement mixed polymer waterproofing material, and they are appropriately selected and used according to the construction site and use. Particularly, it is possible to use a sheet waterproofing material in a concrete construction structure where a crack easily occurs. In the past, an asphalt sheet waterproofing material has been used. However, since it contains a Tar material as a carcinogen, , But its use is gradually diminishing. In addition, the rubberized asphalt sheet waterproofing material is also made of asphalt material in an amount of 90% or more, and the film, which acts as a waterproofing material, is inferior in adhesion during joint construction, . Natural rubber or synthetic rubber can be used as the material of the rubber sheet waterproofing material. Since the amount of natural rubber produced in nature is limited, a synthetic rubber made of hydrocarbons separated from crude oil is widely used as a rubber sheet waterproofing material have. The synthetic rubber is a synthetic polymer material that can be used as a main raw material in the production of rubber products. Examples of the synthetic rubber include styrene butadiene rubber (SBR), nitrile butadiene rubber (NBR), isobutylene-isoprene rubber (IIR), chloroprene rubber CR), butadiene rubber (BR), and the like. However, most of these synthetic rubbers are derived from petroleum extracts, and synthetic rubbers contain tar, a carcinogen. Accordingly, it has been required to develop a synthetic rubber waterproof sheet which is harmless to the human body and is environmentally friendly. To solve this problem, an ethylene propylene diene monomer (EDPM) synthetic rubber waterproof sheet has been developed. However, the existing EPDM waterproof sheet is easy to be adhered by a heat welding machine. However, there is a problem in that leaking occurs due to tearing of sheet or expansion of joints due to expansion of the sheet due to expansion of the building due to expansion of the building.
Therefore, it is urgently required to develop a waterproof sheet having an excellent tensile strength that can withstand the expansion of a building, including EPDM synthetic rubber.
The inventors of the present invention have found that, while searching for a waterproof sheet, a fiber-reinforced composite waterproof sheet containing an EPDM composition is simple and economical and can be produced by roller press heat-sealing and has excellent tensile strength, tensile stress, weather resistance, And electrical resistivity, thus completing the present invention.
Accordingly, the present invention is intended to provide a fiber-reinforced composite waterproof sheet comprising an EPDM composition and a method for producing the same.
The present invention also provides a waterproofing method for a building structure using the composite waterproof sheet.
In order to achieve the above object,
The present invention
There is provided a composite waterproof sheet in which an EPDM (Ethylene Propylene Diene Monomer) composition and a rubber sheet blended with polyvinyl chloride (PVC) are disposed on the upper and lower sides, and the fiber center material is disposed inside.
(1) 40 to 60 parts by weight of a filler, 4 to 6 parts by weight of a softener, 0.8 to 1.2 parts by weight of an antioxidant, 3 to 7 parts by weight of a vulcanization auxiliary, 0.8 to 1.2 parts by weight of a vulcanization accelerator, and 1 to 3 parts by weight of a vulcanizing agent to obtain an EPDM composition; (2) blending polyvinyl chloride (PVC) with the EPDM composition and molding the same to produce a rubber sheet; And (3) placing the rubber sheet on the upper and lower sides and disposing the polyester fibers therein, and then thermally fusing the rubber sheet.
(1 ') applying an EPDM primer to a building structure for waterproofing; (2 ') adhering the composite waterproof sheet of claim 1 to a portion to which the EPDM primer is applied; (3 ') thermally fusing and bonding another composite waterproof sheet of claim 1 while forming mutual bonding portions at one end of the composite waterproof sheet; And (4 ') pouring a protective layer of the composite waterproof sheet or painting the composite waterproof sheet.
Hereinafter, the present invention will be described in detail.
The present invention provides a composite waterproof sheet in which an EPDM (Ethylene Propylene Diene Monomer) composition and a rubber sheet blended with polyvinyl chloride (PVC) are disposed on the upper and lower sides and the fiber center material is disposed inside.
Ethylene Propylene Diene Monomer (EPDM) is a synthetic rubber obtained by polymerization of ethylene, propylene and diene using a Ziegler / Natta catalyst. The main chain is a copolymer of ethylene and propylene, Are attached to the double bond by the ENB. The dienes are ethylene norbornene (ENB), dicyclopentadiene (DCPD) or 1,4-hexadiene (HD). The conventional synthetic rubber in which the main chain is doubly bonded changes its physical properties easily because the foreign material is bonded to the part connected with the double bond in the compounding process. However, since the EPDM synthetic rubber has no double bond in the main chain, (Weatherability, ozone resistance, heat resistance, cold resistance, chemical resistance, rebound resilience) and electrical resistance, and is the lightest (specific gravity 0.8) among synthetic rubbers. A typical EPDM synthetic rubber production process includes a heating process (vulcanization process) at about 150 占 폚 to impart properties of rubber after Soviet Union, kneading, heat input (spouting), and aging. In the above process, "Soviet Union" means a process of reducing the elasticity of the raw material rubber to give a certain degree of plasticity to facilitate kneading, and "kneading" means uniformly dispersing carbon, Refers to a process of producing a film with a specified thickness and a sheet or ribbon, and the term "aging" refers to a process in which rubber is contained in an unvulcanized rubber (compounded rubber) (20 ± 5 ° C) in order to volatize water, moisture and the like, to restore fatigue of rubber and to stabilize plasticity, workability and properties of vulcanizing agent. The "vulcanization treatment" is a step of chemically bonding the isoprene chains constituting the rubber to the sulfur elements penetrating into the rubber, thereby greatly improving and stabilizing the elasticity of the rubber. In the vulcanization process, carbon black or zinc oxide And an antioxidant that prevents the decomposition of the isoprene chain by oxygen or ozone may be added. However, the unvulcanized EPDM synthetic rubber of the present invention is characterized in that it is used in the production of a composite waterproof sheet without heating at about 150 캜.
The EPDM composition comprises 40 to 60 parts by weight of a filler, 4 to 6 parts by weight of a softening agent, 0.8 to 1.2 parts by weight of an antioxidant, 3 to 7 parts by weight of a vulcanization auxiliary agent, 0.8 To 1.2 parts by weight, and 1 to 3 parts by weight of a vulcanizing agent. When the content of the filler is less than 40 parts by weight, there is a problem in that the weight is inadequate. When the content of the filler is more than 60 parts by weight, there is a problem in the advantage of lightweight EPDM having a large weight. When the content of the softener is less than 4 parts by weight, There is a problem that extrusion and molding are difficult. When the content is more than 6 parts by weight, there arises a problem in the adaptability with the structure of the hard and complicated structure of the product during the waterproofing and construction, and the vulcanization accelerator, vulcanization aid, When the content is less than the above-mentioned range, the vulcanization is delayed in the natural state, and there is a problem in weatherability before the natural flow after the construction, and when it exceeds the above-mentioned range, there is a problem in the construction due to elasticity in the natural state before the construction, If the content of the antioxidant is less than 0.8 parts by weight, the aging of the product proceeds quickly, and if the content of the antioxidant exceeds 1.2 parts by weight It is not economically desirable.
The filler is used as a part of reinforcing agent and for the purpose of cost reduction. It may be used alone or in combination with calcium carbonate (CaCO 3 ), D / clay, talc, etc., ) Are used for imparting the flexibility of a compounding agent, facilitating extrusion and molding work and lowering the hardness of the vulcanized rubber. Examples thereof include RP1 (DC chemical), RP6 (DC chemical), KDP-605 Synthetic softener such as petroleum softener, dioctyl phthalate (DOP), vinyl resin, vegetable softener such as black SUB (black additive) and white SUB (white additive) according to the color of the product, WB212 Strukto), K-1 (Strukto), and WD212 (Strukto) may be used alone or in combination. Vulcanization accelerators accelerate the vulcanization reaction between the rubber and the vulcanizing agent and decrease the vulcanization time, lower the vulcanization temperature, and lower the physical / chemical properties. These vulcanization accelerators include D (KUMIC), M ), DM (DC Chemical), CZ (DC Chemical), NA22 (DC Chemical), EUR (DC Chemical), TT (DC Chemical), TRA (Yamada Kasei) Can be used. The above activators may be used in combination with a vulcanization accelerator to maximize the promoting effect. Stearic acid, zinc oxide (ZnO), magnesium oxide (MgO), etc. may be used alone or in combination. (ZnO) is also referred to as zincification. In the sulfur vulcanization of a synthetic rubber, zinc oxide acts to increase the activity of a vulcanization accelerator by forming a complex with a coexisting fatty acid, and magnesium oxide (MgO) But has high activity at high temperature. The vulcanization agents are substances that cause a chemical crosslinking reaction between rubber molecules in a chain form to occur between the rubber molecules to change the state of elasticity. The vulcanization agents are industrially economical and use crosslinkable sulfur (Sulfur) which is easy to use. Antioxidants may be used alone or as a mixture of 3C (Kumanox), RD (Uniroyal), NBC, SN (Kumanox), etc. for the purpose of preventing the aging and prolonging the life of rubber products. Can be used.
The EPDM composition may further comprise a reinforcing agent and an antifoaming agent. The reinforcing agents are added to improve the mechanical and physical properties such as hardness, tensile strength, elongation, rebound resilience and abrasion resistance of the vulcanizate. The reinforcing agents include FEF (carbon black), Clay (reinforcing filler filler) The above-mentioned forming stabilizers absorb the moisture contained in the rubber and the compound, and prevent the generation of air bubbles or eliminate the air bubbles that have already been generated. As a medicine, terpene oil, propyl alcohol , Cetyl alcohol, octyl alcohol, etc. may be used alone or in combination.
The blend constituting the EPDM composition may be mixed using a mixing roller, a kneader mixer or a banbery mixer, and the blended blend is molded into a sheet.
The EPDM and the polyvinyl chloride (PVC) are preferably blended in a weight ratio of 1: 0.1 to 1: 2, more preferably 1: 0.5 to 1: 1. When the content of EPDM is at least twice as high as that of polyvinyl chloride (PVC), the flexibility of the sheet is increased but the sheet formability and heat fusion are deteriorated. When the content of PVC is more than that of EPDM, It is difficult to reinforce the fiber center material in the middle of the rubber sheet because it is extruded through a T-die without being extruded by a roller press. In this case, the thermal fusion is good, but when the structure or the ground is settled, the sheet is weak and tears are generated and leakage is easy.
The fiber center material may be a polyester fiber, a polycarbonate fiber, a polyurethane fiber, a glass fiber or the like, preferably a polyester fiber, more preferably a polyester fiber having a weight of 100 to 150 g / m 2. The form of the fiber sheet can be woven or nonwoven fabric. The tensile force of the composite waterproof sheet can be increased by reinforcing the space between the rubber sheets with the polyester fiber sheet.
(1) 100 parts by weight of unvulcanized EPDM synthetic rubber, 40 to 60 parts by weight of a filler, 4 to 6 parts by weight of a softening agent, 0.8 to 1.2 parts by weight of an antioxidant 3 to 7 parts by weight of a vulcanization aid, 0.8 to 1.2 parts by weight of a vulcanization accelerator, and 1 to 3 parts by weight of a vulcanization agent to obtain an EPDM composition; (2) blending polyvinyl chloride (PVC) with the EPDM composition and molding the same to produce a rubber sheet; And (3) placing the rubber sheet on the upper and lower sides and disposing the polyester fibers therein, and then thermally fusing the rubber sheet.
The heat fusion is preferably carried out by a roller press at a temperature of 150 to 200 DEG C, preferably 170 DEG C, by applying heat and pressure to the surfaces of the two thermoplastic synthetic resin materials. Polyvinyl chloride, polyethylene, ethylene vinyl acetate resin or the like is used as the resin used for enhancing the heat fusion property, and it is preferable to use polyvinyl chloride which can simultaneously improve the extrusion sheet formability and mechanical properties.
The present invention also provides a method for forming a waterproof layer on the surface of a building structure using the composite waterproof sheet, comprising the steps of: (1 ') applying an EPDM primer to a building structure for waterproofing; (2 ') adhering the composite waterproof sheet to a portion to which the EPDM primer is applied; (3 ') adhering another composite waterproof sheet while forming mutual bonds at one end of the composite waterproof sheet; And (4 ') pouring a protective layer of the composite waterproof sheet or painting the composite waterproof sheet.
Since the waterproofing method according to the present invention uses a tacky EPDM composite waterproofing sheet, it does not include the step of bonding the adhesive between the composite waterproofing sheets and the step of adhering the double-sided adhesive tape.
The joint between the composite waterproof sheet adhering portion and the EPDM composite waterproof sheet of the building structure can be adhered using an EPDM synthetic rubber primer. The application of the primer is performed by using a roller made of polyethylene, Apply uniformly to avoid remaining. The EPDM synthetic rubber primer used in the present invention is a low-viscosity floor treatment material comprising chloroprene synthetic rubber (CR) and a resin as a main component. It penetrates into concrete to block the pores and partially melts the surface of the EPDM synthetic rubber, . The primer has excellent penetration ability to cement mortar, concrete, wood, metal plate, etc., and improves the adhesion performance of the EPDM composite waterproof sheet. Examples of the building structure to which the EPDM composite waterproof sheet according to the present invention can be applied include cementitious materials such as concrete, mortar, asbestos slate (asbestos cement sheet, flexural slate sheet), metal systems such as aluminum alloy and stainless steel, , Tiles, and the like, and is preferably applied to a concrete building structure.
The composite waterproof sheet according to the present invention can be produced by reinforcing polyester fibers between the amounts of the rubber sheet containing the EPDM composition, and thus can be manufactured by simple and economical, roller press heat-sealing, excellent tensile strength, tensile stress, weather resistance , Heat resistance, ozone resistance and electrical resistance.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a method of bonding an EPDM composite waterproof sheet according to the present invention.
Hereinafter, preferred embodiments of the present invention will be described in order to facilitate understanding of the present invention. However, the following examples are provided only for the purpose of easier understanding of the present invention, and the present invention is not limited by the examples.
Example 1. Preparation of fiber-reinforced EPDM composite waterproof sheet comprising EPDM composition
100 g of unvulcanized EPDM synthetic rubber, 50 g of filler (clay), 50 g of softener (1) petroleum softener RP1, RP6, KDP-605, synthetic softener DOP, vinyl resin, 5 g of antioxidant (anti-aging 3C or anti-aging RD), 1 g of vulcanization auxiliary agent (1 g of stearic acid, 5 g of zinc oxide), 5 g of a vulcanization accelerator (Acc- CZ) and 2 g of sulfur were mixed in a Banbury mixer, a mixing roller or a Kneader mixer and 80 g of polyvinyl chloride (PVC) mm to 2.0 mm) x length (10 m to 20 m) x width (1200 mm).
The EPDM composite waterproof sheet was prepared by inserting a polyester fiber sheet as a center material between the amounts of the EPDM rubber sheets prepared as described above.
Example 2. Waterproofing using EPDM composite waterproof sheet
First, the bottom of the concrete structure to be waterproofed was cleaned and dried, and the EPDM composite waterproof sheet prepared in Example 1 was cut in consideration of the inclination of the construction site. Next, an EPDM synthetic rubber primer was applied on the floor surface with a polyethylene roller, and then the applied area was dried by hand until it was not buried. After the primer was dried, the cut EPDM composite waterproof sheet was adhered to the floor so as to prevent air from entering the floor, and another EPDM composite waterproof sheet was adhered while forming a composite waterproof sheet and a mutual adhesion portion bonded to the floor.
While repeating the above procedure, all the construction parts were bonded to the composite waterproof sheet, and the bonded composite waterproof sheet was pushed to the roller. After confirming whether or not the adhesive portion is defective, a concrete protective layer was laid on the bonded EPDM composite waterproof sheet.
Experimental Example 1. Dimension and Characteristic Analysis of EPDM Composite Waterproof Sheet
The dimensions of the EPDM composite waterproof sheet according to Example 1 are shown in Table 1.
The properties of the EPDM composite waterproof sheet according to Example 1 are shown in Table 2 (unit 1N = 9.806652 Kgf) in comparison with the vulcanized rubber waterproof sheet standard specified by KS F 4911.
As shown in the above Table 2, the tensile performance, tear performance, temperature dependency, heat expansion and contraction properties, tensile performance after degradation treatment, deterioration properties upon elongation, and bonding properties of the EPDM composite waterproof sheet produced according to Example 1 were all tested It can be seen that it is better than the standard.
Claims (10)
Wherein said EPDM and polyvinyl chloride (PVC) are blended in a weight ratio of 1: 0.5 to 1: 1.
The EPDM composition comprises 40 to 60 parts by weight of a filler, 4 to 6 parts by weight of a softening agent, 0.8 to 1.2 parts by weight of an antioxidant, 3 to 7 parts by weight of a vulcanization auxiliary, 0.8 to 9 parts by weight of a vulcanization accelerator, 1.2 parts by weight of a vulcanizing agent, and 1 to 3 parts by weight of a vulcanizing agent.
Wherein the EPDM composition further comprises a reinforcing agent and an antifoaming agent.
Wherein the fiber centering material is any one selected from a polyester fiber, a polycarbonate fiber, a polyurethane fiber, a glass fiber, and a combination thereof.
Wherein the polyester fiber is a woven or nonwoven fabric sheet having a weight of 100 to 150 g / m 2.
(2) blending polyvinyl chloride (PVC) with EPDM and polyvinyl chloride (PVC) in a weight ratio of 1: 0.5 to 1: 1 to the EPDM composition, followed by molding to produce a rubber sheet; And
(3) A method for producing a composite waterproof sheet, comprising the steps of: disposing the rubber sheet on the upper and lower sides and disposing the polyester fibers therein;
Wherein the thermal fusion is performed by a roller press at a temperature of 150 to 200 占 폚.
(2 ') adhering the composite waterproof sheet of claim 1 to a portion to which the EPDM primer is applied;
(3 ') bonding another composite waterproof sheet of claim 1 while forming mutual bonding portions at one end of the composite waterproof sheet; And
(4 ') installing a protective layer of the composite waterproof sheet or painting the composite waterproof sheet.
Characterized in that the mutual bonding portions between the composite waterproof sheets are bonded using an EPDM primer.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101880679B1 (en) | 2017-08-18 | 2018-07-23 | 주식회사 지엘 | Waterproof Structure of Connecting Part of ConcreteStructure and the Method of Constructing Thereof |
| KR20190050027A (en) | 2017-11-02 | 2019-05-10 | 박진근 | Complex waterproof sheet and Manufacturing Method Thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109111611A (en) * | 2018-07-30 | 2019-01-01 | 中裕软管科技股份有限公司 | A kind of preparation method of high anti-hydrolysis oil-resistant high temperature-resistanrubber rubber hose water band |
| KR102135974B1 (en) * | 2019-03-15 | 2020-07-20 | 태정산업개발 주식회사 | Polyvinyl chloride waterproof sheet and complex water proofing method thereof |
| CN117048154B (en) * | 2023-10-13 | 2023-12-12 | 邢台荣越玻璃科技有限公司 | PS waterproof board and preparation method thereof |
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| KR100796019B1 (en) * | 2007-04-19 | 2008-01-21 | 김기철 | Un-vulcanized synthetic rubber sheets-waterproof material of self-adhesion type and construction method using the same |
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| KR100675197B1 (en) | 2005-07-04 | 2007-01-29 | 빈석민 | Trap for Enticing and Eradicating House Fly |
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| KR100796019B1 (en) * | 2007-04-19 | 2008-01-21 | 김기철 | Un-vulcanized synthetic rubber sheets-waterproof material of self-adhesion type and construction method using the same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101880679B1 (en) | 2017-08-18 | 2018-07-23 | 주식회사 지엘 | Waterproof Structure of Connecting Part of ConcreteStructure and the Method of Constructing Thereof |
| KR20190050027A (en) | 2017-11-02 | 2019-05-10 | 박진근 | Complex waterproof sheet and Manufacturing Method Thereof |
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