JP4589344B2 - Seat waterproof structure and waterproof construction method - Google Patents

Seat waterproof structure and waterproof construction method Download PDF

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JP4589344B2
JP4589344B2 JP2007003423A JP2007003423A JP4589344B2 JP 4589344 B2 JP4589344 B2 JP 4589344B2 JP 2007003423 A JP2007003423 A JP 2007003423A JP 2007003423 A JP2007003423 A JP 2007003423A JP 4589344 B2 JP4589344 B2 JP 4589344B2
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waterproof
sheet
layer
nonwoven fabric
waterproof sheet
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JP2007186988A (en
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梁宇廷
洪鍾徳
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株式会社大興産業
金 上甲
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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
    • B32B11/00—Layered products comprising a layer of bituminous or tarry substances
    • B32B11/10—Layered products comprising a layer of bituminous or tarry substances next to a fibrous or filamentary layer
    • 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
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/4505—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements characterised by the method of application
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption
    • B32B2307/7265—Non-permeable
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials

Description

本発明は一般の建築物や屋上の床などの建築構造物及び地下外壁、トンネル、地下駐車場などの地下構造物の防水に使用されるシートを利用した防水構造及び工法に係り、より詳しくは隣接する防水シート間の結合を堅くするために、前記防水シート間にプライマー組成物を塗布した後、その上に塗膜防水材を提供して、前記防水シートの一体結合性及び優れた水密性を確保し、簡単な施工過程で作業性及び経済性を著しく改善するシート防水構造及び防水工法に関するものである。   The present invention relates to a waterproof structure and a construction method using a sheet used for waterproofing a general building or a building structure such as a rooftop and an underground structure such as an underground outer wall, a tunnel or an underground parking lot. In order to strengthen the bond between adjacent waterproof sheets, a primer composition is applied between the waterproof sheets, and then a waterproof coating material is provided on the primer composition. It is related with the waterproof structure and waterproofing method of a sheet | seat which ensures workability and economical efficiency remarkably by a simple construction process.

建築構造物に対する防水工法として、シート防水は、一般に、合成ゴムや合成樹脂のような合成高分子系またはゴム化アスファルトなどを主原料とし、通常０．８〜３．０ｍｍの幅及び長さを有する防水シートを連続して配置することで防水効果を得るためのもので、外部の変化する気候条件によく適応し、現場で簡便に施工できるという利点を有する。   As a waterproofing method for building structures, sheet waterproofing is generally made of synthetic polymer such as synthetic rubber or synthetic resin or rubberized asphalt as a main raw material, and usually has a width and length of 0.8 to 3.0 mm. It is for obtaining a waterproofing effect by continuously arranging the waterproof sheets having it, and has the advantage that it can be easily applied at the site, adapting well to external changing climatic conditions.

しかし、隣接する防水シート間の隙間に欠陷がある場合、漏水、浸水のような防水性能の低下はもちろん、連結部が浮き上がるか分離するなどの構造的問題が発生するから、これら問題の解決がシート防水の品質を決定するキーになった。   However, if there are gaps between adjacent waterproof sheets, structural problems such as leakage or flooding, as well as structural problems such as floating or separation of the connecting parts, will occur. Became the key to determine the quality of waterproof seats.

前記防水シート間の継ぎ手部を結合させるために、前記防水シートの継ぎ手部を重ねた後、トーチランプなどで溶融させて付着させる方法が使用された。しかし、継ぎ手部に対するトーチランプの過熱あるいは不完全な加熱によって漏水発生の原因になることもあり、ただシート防水材の自体接着のみによって、プライマーが塗布された下部と接着することによって、コンクリート面と防水層間の浮き上がり現象が発生し、後に欠陥が発生する時、漏水部位を探すことが容易でないという問題点があった。   In order to join the joint portions between the waterproof sheets, a method was used in which the joint portions of the waterproof sheets were stacked and then melted and attached with a torch lamp or the like. However, overheating or incomplete heating of the torch lamp to the joint may cause water leakage, and by adhering to the lower part to which the primer is applied only by bonding the waterproof sheet itself, When the floating phenomenon occurs between the waterproof layers and a defect occurs later, there is a problem that it is not easy to find the water leakage site.

したがって、シート間の隙間に塗膜防水材を提供するか、シートに一体に結合された継ぎ手部を形成して前記シート間を連結して堅く結合する方法などが試みされた。   Therefore, a method of providing a waterproof coating material in the gap between the sheets or forming a joint portion integrally bonded to the sheets and connecting the sheets firmly to each other has been tried.

一方、塗膜防水は、合成ゴムまたは合成樹脂及び硬化剤を混合して床層に密着して塗布することで形成された塗膜によって防水効果を得ようとしたもので、衝撃抵抗性及び摩耗抵抗性は優秀であり、前記シート防水のようなシートの連結部処理による欠陥発生の問題はないが、外部振動に対する吸水性が十分でなく浮き上がり現象が起こることができるという問題があった。   On the other hand, the waterproof coating is intended to obtain a waterproof effect with a coating formed by mixing a synthetic rubber or synthetic resin and a curing agent and applying the mixture in close contact with the floor layer. The resistance is excellent, and there is no problem of occurrence of defects due to the treatment of the connecting portion of the sheet such as the waterproof sheet, but there is a problem that the water absorption with respect to the external vibration is not sufficient and the floating phenomenon can occur.

したがって、最近にはシート防水と塗膜防水の問題点を克服し、長所を最大化するために、両防水工法を複合的に適用した全面塗布式または部分絶縁式複合防水工法が開発された。   Therefore, recently, in order to overcome the problems of sheet waterproofing and waterproofing of the coating film and maximize the advantages, a full coating type or partial insulation type combined waterproofing method in which both waterproofing methods are applied in combination has been developed.

まず、全面塗布式複合防水工法として、防水シートを利用した複合防水工法がある（特許文献１参照）。前記複合防水工法は、下からアスファルトプライマー層、塗膜防水材層、ゴム化アスファルト層を挟んだ上下の不織布層からなる防水シート、及び押しコンクリート層を順に塗布することを含む。前記複合防水工法では、前記防水シートの前記不織布層の端部または両端を５〜１０ｃｍだけ伸ばして不織布継ぎ手部を形成し、隣り合う同一構成の防水シートから２〜１５ｍｍの間隔を置いて接合するにおいて、前記防水シート間に前記塗膜防水材と同じ材質の隙間塗膜防水材を供給して塗布しながら、前記不織布継ぎ手部の一部を前記防水シートの前記不織布層と重畳して接合させる。
大韓民国特許第４４４９０７号公報 First, there is a composite waterproof construction method using a waterproof sheet as a whole surface application type composite waterproof construction method (see Patent Document 1). The composite waterproofing method includes applying an asphalt primer layer, a waterproof coating material layer, a waterproof sheet composed of upper and lower nonwoven fabric layers sandwiching a rubberized asphalt layer, and a pressed concrete layer in order from the bottom. In the composite waterproof construction method, the end portion or both ends of the non-woven fabric layer of the waterproof sheet is extended by 5 to 10 cm to form a non-woven fabric joint portion, and the adjacent waterproof sheets having the same configuration are joined at an interval of 2 to 15 mm. In the above, while supplying and applying a gap coating film waterproof material of the same material as the coating film waterproof material between the waterproof sheets, a part of the non-woven joint is overlapped and joined to the nonwoven layer of the waterproof sheet .
Korean Patent No. 444907

また、防水シート及び塗膜防水材を利用した複合防水層を基礎面に接着させるにあたって、部分絶縁接着方式を用いて、応力集中による防水層の亀裂及び防水シートの接着力弱化によった浮き上がり現象を防止し、複合防水層全体の挙動対応性、衝撃抵抗性及び振動吸水性を改善するために部分絶縁式複合防水工法が開発された（特許文献２参照）。前記部分絶縁式複合防水工法は、建築構造物の基礎面上にプライマーを塗布し、ゴム化アスファルト層を挟む上部不織布層及び下部不織布層からなる複数枚の防水シートを隣接して配置するにあたって、前記防水シートの前記下部不織布層の端部を５〜１０ｃｍだけ伸ばして不織布継ぎ手部を形成し、前記不織布継ぎ手部の下に部分絶縁塗膜防水材を１０〜２０ｃｍの幅で塗布し、前記不織布継ぎ手部を前記部分絶縁塗膜防水材上に付着し、前記防水シートと同一構成の防水シートを前記防水シートから０．２〜３．０ｃｍの間隔で接合し、前記不織布継ぎ手部の一部を前記防水シートの前記下部不織布層と重畳して接合させ、前記防水シート間に前記部分絶縁塗膜防水材と同じ材質の隙間塗膜防水材を提供し、前記防水シートの前記上部不織布層間の前記間隔上に５〜１５ｃｍの幅だけ前記隙間塗膜防水材を塗布し、その上に押しコンクリートを塗布することを含む。
大韓民国特許第４９９７４８号公報 Also, when bonding a composite waterproof layer using a waterproof sheet and a waterproof coating material to the base surface, using the partial insulation bonding method, the phenomenon of floating due to the cracking of the waterproof layer due to stress concentration and weakening of the adhesive strength of the waterproof sheet In order to prevent this and improve the behavioral compatibility, impact resistance and vibration absorption of the entire composite waterproof layer, a partially insulated composite waterproof construction method has been developed (see Patent Document 2). In the partial insulation type composite waterproofing method, a primer is applied on the basic surface of a building structure, and a plurality of waterproof sheets composed of an upper nonwoven layer and a lower nonwoven layer sandwiching a rubberized asphalt layer are disposed adjacent to each other. An end portion of the lower nonwoven fabric layer of the waterproof sheet is extended by 5 to 10 cm to form a nonwoven joint portion, and a partially insulating coating waterproofing material is applied in a width of 10 to 20 cm under the nonwoven joint portion, A joint portion is attached on the partially insulating waterproofing membrane, and a waterproof sheet having the same configuration as the waterproof sheet is joined at an interval of 0.2 to 3.0 cm from the waterproof sheet, and a part of the nonwoven joint portion is bonded. Superimposing and joining the lower nonwoven fabric layer of the waterproof sheet, providing a gap paint film waterproof material of the same material as the partial insulating paint waterproof material between the waterproof sheets, On the spacing of the fabric layers by the width of 5~15cm coating the gap waterproofing membrane material comprises applying a concrete press thereon.
Korean Patent No. 499748

これら複合防水工法は、従来のシート防水及び塗膜防水が有する問題点を克服するために、防水シートとしてゴム化アスファルト層を挟む上部不織布層及び下部不織布層から構成され、前記上部不織布層または前記下部不織布層の端部を伸ばして不織布継ぎ手部を形成したものを使用し、防水シートの下部及び防水シート間の連結部には同じ材質の塗膜防水材を提供することで、塗膜と防水シートを一体に結合して全体防水構造の水密性を確保することに寄与した。   These composite waterproofing methods are composed of an upper nonwoven layer and a lower nonwoven layer sandwiching a rubberized asphalt layer as a waterproof sheet in order to overcome the problems of conventional sheet waterproofing and coating waterproofing, Use a non-woven fabric joint formed by extending the end of the lower non-woven fabric layer, and provide a waterproof coating material of the same material for the lower part of the waterproof sheet and the connecting part between the waterproof sheets. The sheet was joined together to contribute to ensuring the watertightness of the overall waterproof structure.

しかし、前記の複合防水工法による場合、防水シート間の連結部に提供された塗膜防水材が防水シートの上下不織布層間を構成するゴム化アスファルトを部分的に溶解させることにより、ゴム化アスファルトの物性がゲル化してべたつくことになるなど、劣化することにより、ゴム化アスファルトと塗膜防水材が分離され、防水欠陥が発生する問題点が提起された。   However, in the case of the composite waterproofing method, the waterproof coating material provided at the joint between the waterproof sheets partially dissolves the rubberized asphalt constituting the upper and lower nonwoven fabric layers of the waterproof sheet, thereby The deterioration of properties such as gelation and stickiness caused the separation of rubberized asphalt and waterproofing coating material, and raised the problem that waterproof defects occurred.

このような現象は、塗膜防水材が溶剤タイプの場合にもっと著しく、無溶剤タイプの場合にも、作業現場で流動性及び作業性の改善のために使用されるシンナーによってゴム化アスファルトが溶解する。   This phenomenon is more pronounced when the waterproof coating material is solvent type, and even when it is solventless type, the rubberized asphalt is dissolved by the thinner used to improve fluidity and workability at the work site. To do.

本発明は、前述したような問題点を克服するシート防水構造及び工法を提供する。   The present invention provides a waterproof sheet structure and a method for overcoming the above-described problems.

本発明の目的は、隣接する防水シート間にプライマー組成物を塗布し、その上に塗膜防水材を提供することにより、塗膜防水材が防水シートのゴム化アスファルトを溶解させることによって発生した従来技術の問題点を克服するようにしたシート防水構造及び防水工法を提供することである。   The object of the present invention was generated by applying a primer composition between adjacent waterproof sheets and providing a waterproof film on the primer composition, whereby the waterproof film dissolves the rubberized asphalt of the waterproof sheet. It is an object of the present invention to provide a sheet waterproof structure and a waterproof construction method that overcome the problems of the prior art.

本発明のさらに他の目的は、従来の複合防水工法のように、防水シートの外に塗膜防水材層を別に提供し、防水シート間に塗膜防水材を直接適用する代わり、防水基礎面上に塗布されたプライマー組成物を防水シート間に提供し、前記プライマー層の上部にだけ塗膜防水材を提供することにより、簡単な防水構造及び施工作業で作業性及び経済性を改善するようにしたシート防水構造及び防水工法を提供することである。   Still another object of the present invention is to provide a waterproof coating layer separately from the waterproof sheet as in the case of the conventional composite waterproofing method, and instead of directly applying the waterproof coating film between the waterproof sheets, the waterproof foundation surface By providing the primer composition applied on the waterproof sheet between the waterproof sheets and providing the waterproof coating material only on the primer layer, the workability and economy are improved with a simple waterproof structure and construction work. It is to provide a sheet waterproof structure and a waterproof construction method.

前記目的を達成するための本発明に係る、防水基礎面のためのシート防水構造は、前記防水基礎面の上に間隔を置いて配置された複数の防水シートであって隣接する２つのうち一方の防水シートが、第１ゴム系アスファルト層と、該第１ゴム系アスファルト層を挟む第１上部不織布層及び第１下部不織布層とからなり、他方の防水シートが、第２ゴム系アスファルト層と、該第２ゴム系アスファルト層を挟む第２上部不織布層及び第２下部不織布層とからなる複数の防水シートと、前記第１上部不織布層の端部、前記第２上部不織布層の端部、前記一方の防水シートの側面、前記他方の防水シートの側面及び前記一方の防水シートと前記他方の防水シートとの間における前記防水基礎面に塗布されたアクリル系水溶性プライマー組成物と、該プライマー組成物の上に提供され、前記プライマー組成物に受け入れられた塗膜防水材層とを含む。
In order to achieve the above object , a waterproof sheet structure for a waterproof base surface according to the present invention is a plurality of waterproof sheets arranged at intervals on the waterproof base surface, and one of two adjacent sheets. waterproof sheets, a first rubber asphalt layer, Ri Do and a first upper nonwoven layer and the first lower nonwoven layer sandwich the first rubber asphalt layer, the other of the waterproof sheet, the second rubber asphalt layer And a plurality of waterproof sheets comprising a second upper nonwoven fabric layer and a second lower nonwoven fabric layer sandwiching the second rubber-based asphalt layer, an end portion of the first upper nonwoven fabric layer, an end portion of the second upper nonwoven fabric layer , a side of the one tarpaulin, an acrylic water-soluble primer composition applied to the waterproof base face between the side face and the one tarpaulin of the other waterproof sheet and the other of the waterproof sheet, the It is provided on the primer composition, and a said coating is received in the primer composition film waterproof material layer.

前記プライマー組成物は水溶性タイプで、多種のモノマーを重合した高分子物質を水中に乳化させたエマルジョン状態の組成物を意味する。具体的に、本発明では、アクリル系水溶性プライマー組成物を使用し、より具体的な組成例は、スチレンモノマー２〜５重量％、メチルメタクリレート（ＭＭＡ）２５〜３５重量％、２−ヒドロキシルエエチルアクリレート（２−ＨＥＡ）２５〜３５重量％、及び残量の水とすることができる。このような水溶性プライマー組成物は防水シートのゴム化アスファルトを溶解させなく、防水シート間の隙間に塗布することで、その上に提供される塗膜防水材が防水シートのゴム化アスファルトと接触する面積を完全に遮断することにより、塗膜防水材の物性による防水シートの損傷や劣化を防止することができる。   The primer composition means a water-soluble type composition in an emulsion state in which a polymer material obtained by polymerizing various monomers is emulsified in water. Specifically, in the present invention, an acrylic water-soluble primer composition is used, and more specific composition examples include 2 to 5% by weight of styrene monomer, 25 to 35% by weight of methyl methacrylate (MMA), and 2-hydroxyl monomer. The amount of ethyl acrylate (2-HEA) can be 25 to 35% by weight, and the remaining amount of water. Such a water-soluble primer composition does not dissolve the rubberized asphalt of the waterproof sheet, and is applied to the gap between the waterproof sheets, so that the waterproof film provided thereon contacts the rubberized asphalt of the waterproof sheet. By completely blocking the area to be damaged, damage and deterioration of the waterproof sheet due to the physical properties of the waterproof coating material can be prevented.

前記プライマー組成物は防水シート間の隙間に手動で提供することもできるが、ローラーを備えた供給装置によって連続的に提供することが望ましい。   The primer composition can be manually provided in the gap between the waterproof sheets, but it is desirable that the primer composition is continuously provided by a supply device having a roller.

前記塗膜防水材としては、無溶剤ウレタンなどの任意の塗膜防水材を使用することができる。   As the waterproof membrane, any waterproof membrane such as solventless urethane can be used.

前記プライマー組成物と塗膜防水材は、前記防水シートのそれぞれの前記上部不織布層上の前記対向端部にそれぞれ３〜１０ｃｍほど塗布されることが望ましい。   It is desirable that the primer composition and the waterproof coating material be applied to the opposing end portions on the upper nonwoven fabric layer of the waterproof sheet by about 3 to 10 cm, respectively.

また、前記防水基礎面上に防水シートを配置するに先立ち、防水基礎面上にプライマー層を塗布することができる。   Further, prior to disposing the waterproof sheet on the waterproof base surface, a primer layer can be applied on the waterproof base surface.

前記のような本発明のシート防水構造において、プライマー組成物と塗膜防水材が提供される防水シート間の隙間を除き、防水シート自体の底面、すなわち防水基礎面上には塗膜防水材を提供せず、直ちに防水シートの下部不織布層が配置されるので、全体防水構造に対して部分絶縁の効果を自然に達成することができる。   In the sheet waterproof structure of the present invention as described above, except for a gap between the waterproof sheet provided with the primer composition and the waterproof coating material, a waterproof coating material is provided on the bottom surface of the waterproof sheet itself, that is, on the waterproof base surface. Since the lower nonwoven fabric layer of the waterproof sheet is immediately disposed without providing it, the effect of partial insulation can be naturally achieved with respect to the entire waterproof structure.

前記防水シートは、前記防水シート間の結合を堅くするために、前記防水シートの端部上に一部が露出し、前記ゴム化アスファルト層の端部の上部または下部に他部が埋め込まれたメッシュ状の織布または不織布からなる継ぎ手部を備えるものとすることができる。   Part of the waterproof sheet is exposed on the end part of the waterproof sheet and the other part is embedded in the upper part or the lower part of the end part of the rubberized asphalt layer in order to strengthen the connection between the waterproof sheets. The joint part which consists of a mesh-like woven fabric or a nonwoven fabric can be provided.

すなわち、前記防水シート間の継ぎ手部にメッシュ状の織布または不織布からなる継ぎ手部を提供することにより、メッシュ状の織布または不織布にプライマー組成物及び塗膜防水材を含浸させるものであり、これにより、隣接する防水シートをさらに堅く接合することができる。   That is, by providing a joint portion made of a mesh-like woven fabric or nonwoven fabric at the joint portion between the waterproof sheets, the mesh-shaped woven fabric or nonwoven fabric is impregnated with the primer composition and the waterproof coating material, Thereby, the adjacent waterproof sheet can be joined more firmly.

前記メッシュ状の織布は、不織布より空隙が大きいガラス纎維織布、ポリエチレン網、ポリプロピレン網などを使用することができ、前記不織布は、空隙を人為的に大きく形成した、パンチングされた不織布とすることができる。   The mesh woven fabric may be a glass fiber woven fabric having a larger gap than the nonwoven fabric, a polyethylene mesh, a polypropylene mesh, etc., and the nonwoven fabric is a punched nonwoven fabric with artificially formed voids. can do.

一方、本発明に係る、防水基礎面のためのシート防水工法は、前記防水基礎面の上に、間隔を置かれた複数の防水シートであって隣接する２つのうち一方の防水シートが、第１ゴム系アスファルト層と、該第１ゴム系アスファルト層を挟む第１上部不織布層及び第１下部不織布層とからなり、他方の防水シートが、第２ゴム系アスファルト層と、該第２ゴム系アスファルト層を挟む第２上部不織布層及び第２下部不織布層とからなる複数の防水シートを配置すること、前記第１上部不織布層の端部、前記第２上部不織布層の端部、前記一方の防水シートの側面、前記他方の防水シートの側面及び前記一方の防水シートと前記他方の防水シートとの間における前記防水基礎面にアクリル系水溶性プライマー組成物を塗布すること、前記プライマー組成物が硬化した後、その上に塗膜防水材を、該塗膜防水材が前記プライマー組成物に受け入れられるように供給すること、必要に応じて、前記シート防水構造上にトップコーティング材を塗布することを含む。
On the other hand, according to the present invention, the sheet waterproofing method for the waterproof foundation surface on said waterproof base face, two of one tarpaulin adjacent a plurality of waterproof sheets spaced, first 1 and rubber asphalt layer, Ri Do and a first upper nonwoven layer and the first lower nonwoven layer sandwich the first rubber asphalt layer, the other of the waterproof sheet, and a second rubber asphalt layer, said second rubber placing a plurality of the waterproof sheet comprising a second upper nonwoven layer and the second lower nonwoven layer sandwich a system asphalt layer, an end portion of the first upper nonwoven layer, the ends of the second upper nonwoven layer, the one side tarpaulin, applying the acrylic water-soluble primer composition to said waterproof base face in between the other tarpaulin side and the one tarpaulin and the other tarpaulin, wherein the primer After the composition is cured, a coating film waterproof material thereon, the coating film waterproofing material is supplied to be received in said primer composition, when necessary, a top coating material to said sheet waterproof structure on Including applying.

このような本発明のシート防水工法は、従来の複合防水工法と同様に、防水基礎面上にプライマー層を塗布し、その上に塗膜防水層を全面塗布式または部分絶縁式で形成した後、防水シートを配置し、ついで前記防水シート間の継ぎ手部を処理する過程を単純化することにより、ただ防水基礎面上に複数枚の防水シートを配列し、前記防水シート間にプライマー層を塗布した後、その上に塗膜防水材を塗布するだけで良いので、施工がかなり簡便で容易になり、作業性及び経済性を格段に改善することができる。さらに、従来技術による場合、塗膜防水材が防水シートのゴム化アスファルトを溶解させることによって発生した問題点を構造的に全く克服することにより、防水効果面では一層優れた結果を得ることができる。   Such a sheet waterproofing method of the present invention is similar to the conventional composite waterproofing method, in which a primer layer is applied on a waterproof base surface, and a waterproof coating layer is formed on the whole surface by coating or partial insulation. By arranging the waterproof sheet, and then simplifying the process of processing the joint between the waterproof sheets, just arrange a plurality of waterproof sheets on the waterproof base surface and apply the primer layer between the waterproof sheets After that, it is only necessary to apply a waterproof coating material thereon, so that the construction is considerably simpler and easier, and the workability and economy can be remarkably improved. Furthermore, in the case of the prior art, the waterproofing effect can be obtained by further overcoming the problems caused by the coating film waterproofing material dissolving the rubberized asphalt of the waterproof sheet. .

前述したように、本発明によれば、隣接する防水シート間にプライマー組成物を塗布し、その上に塗膜防水材を提供することにより、塗膜防水材が防水シートのゴム化アスファルトを溶解させることによって発生した従来技術の問題点を克服することができる。   As described above, according to the present invention, the coating composition waterproofing material dissolves the rubberized asphalt of the waterproofing sheet by applying the primer composition between adjacent waterproofing sheets and providing the coating film waterproofing material thereon. It is possible to overcome the problems of the prior art that have occurred.

また、本発明によれば、従来の複合防水工法のように、防水シートの外に、塗膜防水材層を別に提供し、防水シート間に塗膜防水材を直接適用する代わり、防水基礎面上に塗布されたプライマー組成物を防水シート間に提供して前記プライマー層の上部にだけ塗膜防水材を提供することにより、簡単な防水構造及び施工作業で作業性及び経済性を改善することができる。   In addition, according to the present invention, as in the case of a conventional composite waterproofing method, a waterproof coating layer is separately provided outside the waterproof sheet, and instead of applying the waterproof coating material directly between the waterproof sheets, the waterproof foundation surface Improve workability and economy with a simple waterproof structure and construction work by providing the primer composition applied on the waterproof sheet and providing the waterproof coating material only on the upper part of the primer layer. Can do.

以下、添付図面に基づいて本発明をより具体的に説明する。   Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

図１は本発明の一実施例による防水構造を断面図として示す。   FIG. 1 is a sectional view showing a waterproof structure according to an embodiment of the present invention.

本発明のシート防水構造は、ゴム化アスファルト層１３を挟む上部不織布層１１及び下部不織布層１２からなる複数枚の防水シート１０と、該防水シートのそれぞれの上部不織布層１１の対向端部、防水シート１０の対向側面、及び防水シート１０間の隙間の下部に塗布される水溶性プライマー組成物２０と、該プライマー組成物の上部に提供される塗膜防水材層３０とを含む。   The sheet waterproof structure of the present invention includes a plurality of waterproof sheets 10 composed of an upper nonwoven fabric layer 11 and a lower nonwoven fabric layer 12 sandwiching a rubberized asphalt layer 13, opposing end portions of each upper nonwoven fabric layer 11 of the waterproof sheet, and waterproofing. The water-soluble primer composition 20 applied to the opposite side surface of the sheet 10 and the lower part of the gap between the waterproof sheets 10 and the waterproof coating layer 30 provided on the upper part of the primer composition are included.

このようなシート防水構造を形成するためには、まず防水基礎面４０上に防水シート１０を０．２〜５．０ｃｍの間隔で隣接して配置する。   In order to form such a waterproof sheet structure, first, the waterproof sheet 10 is disposed adjacent to the waterproof base surface 40 at an interval of 0.2 to 5.0 cm.

ついで、防水シート１０のそれぞれの上部不織布層１１の対向端部、防水シート１０の対向側面、及び防水シート１０間の隙間の下部に水溶性プライマー組成物２０を供給して塗布する。この際に、ローラーを備える供給装置を利用すれば、防水シート１０間の隙間に連続して便利にプライマー組成物２０を塗布することができる。   Next, the water-soluble primer composition 20 is supplied and applied to the opposite end of each upper nonwoven fabric layer 11 of the waterproof sheet 10, the opposite side surface of the waterproof sheet 10, and the lower part of the gap between the waterproof sheets 10. At this time, if a supply device including a roller is used, the primer composition 20 can be conveniently applied continuously in the gap between the waterproof sheets 10.

ついで、プライマー組成物２０が硬化した後、その上に塗膜防水材３０を供給すれば、本発明のシート防水構造が得られる。   Then, after the primer composition 20 is cured, if the waterproof coating material 30 is supplied thereon, the waterproof sheet structure of the present invention is obtained.

必要に応じて、前記シート防水構造上にトップコーティング材を塗布して仕上げ作業を行うことができる。   If necessary, a finishing operation can be performed by applying a top coating material on the waterproof sheet structure.

本発明の他の実施例を示す図２では、隣り合う二枚の防水シートが連結されている。   In FIG. 2 showing another embodiment of the present invention, two adjacent waterproof sheets are connected.

この実施例による防水シート構造は、防水シート１０がゴム化アスファルト層１３を挟む上部不織布層１１及び下部不織布層１２だけでなく、防水シート１０の端部上に一部が露出し、ゴム化アスファルト層１３の端部の上部に他部が埋め込まれたメッシュ状の織布または不織布からなる継ぎ手部１４を含む点を除き、図１に示した例と同様である。   In the waterproof sheet structure according to this embodiment, the waterproof sheet 10 is exposed not only on the upper nonwoven fabric layer 11 and the lower nonwoven fabric layer 12 sandwiching the rubberized asphalt layer 13 but also on the end portion of the waterproof sheet 10, so that the rubberized asphalt is exposed. Except for including a joint portion 14 made of a mesh-like woven fabric or non-woven fabric in which the other portion is embedded in the upper portion of the end portion of the layer 13, it is the same as the example shown in FIG.

継ぎ手部１４はメッシュ状になっているから、プライマー組成物２０及び塗膜防水材３０は継ぎ手部１４を円滑に通過して防水シート１０間に提供できる。   Since the joint portion 14 has a mesh shape, the primer composition 20 and the waterproof coating material 30 can smoothly pass through the joint portion 14 and be provided between the waterproof sheets 10.

また、図３に示す防水シート１０は、ゴム化アスファルト層１３を挟む上部不織布層１１及び下部不織布層１２と、防水シート１０の端部上に一部が露出し、ゴム化アスファルト層１３の端部の下部に他部が埋め込まれたメッシュ状の織布または不織布からなる継ぎ手部１４とを含む点で前記実施例とは違い、その他の防水シート構造及び工法は図１または図２に示した例と同様である。   Further, the waterproof sheet 10 shown in FIG. 3 is partially exposed on the upper nonwoven fabric layer 11 and the lower nonwoven fabric layer 12 sandwiching the rubberized asphalt layer 13 and the end of the waterproof sheet 10, and the end of the rubberized asphalt layer 13 is exposed. Unlike the above embodiment, the other waterproof sheet structure and construction method are shown in FIG. 1 or FIG. 2 in that it includes a joint portion 14 made of a mesh-like woven fabric or non-woven fabric in which the other portion is embedded in the lower portion of the portion. Similar to the example.

本発明は、一般の建築物や屋上の床などの建築構造物及び地下外壁、トンネル、地下駐車場などの地下構造物の防水に使用されるシートを利用した防水構造及び工法に適用可能である。   INDUSTRIAL APPLICABILITY The present invention can be applied to a waterproof structure and a construction method using a sheet used for waterproofing a general building, a building structure such as a rooftop, and an underground structure such as an underground outer wall, a tunnel, and an underground parking lot. .

本発明の一実施例によるシート防水構造を示す断面図。Sectional drawing which shows the sheet | seat waterproof structure by one Example of this invention. 本発明の他の実施例による防水構造を示す断面図。Sectional drawing which shows the waterproof structure by the other Example of this invention. 本発明のさらに他の実施例による防水構造を示す断面図。Sectional drawing which shows the waterproof structure by other Example of this invention.

符号の説明Explanation of symbols

１０ 防水シート
１１ 上部不織布層
１２ 下部不織布層
１４ 継ぎ手部
２０ プライマー組成物
３０ 塗膜防水材層
４０ 防水基礎面 DESCRIPTION OF SYMBOLS 10 Waterproof sheet 11 Upper nonwoven fabric layer 12 Lower nonwoven fabric layer 14 Joint part 20 Primer composition 30 Coating-film waterproof material layer 40 Waterproofing foundation surface

Claims (4)

防水基礎面のためのシート防水構造であって、
前記防水基礎面の上に間隔を置いて配置された複数の防水シートであって隣接する２つのうち一方の防水シートが、第１ゴム系アスファルト層と、該第１ゴム系アスファルト層を挟む第１上部不織布層及び第１下部不織布層とからなり、他方の防水シートが、第２ゴム系アスファルト層と、該第２ゴム系アスファルト層を挟む第２上部不織布層及び第２下部不織布層とからなる複数の防水シートと、
前記第１上部不織布層の端部、前記第２上部不織布層の端部、前記一方の防水シートの側面、前記他方の防水シートの側面及び前記一方の防水シートと前記他方の防水シートとの間における前記防水基礎面に塗布されたアクリル系水溶性プライマー組成物と、
該プライマー組成物の上に提供され、前記プライマー組成物に受け入れられた塗膜防水材層とを含み、
前記防水シートは、該防水シートの端部上に一部が露出し、前記ゴム化アスファルト層の端部の上部または下部に他部が埋め込まれたメッシュ状の織布からなる継ぎ手部を含む、シート防水構造。 A sheet waterproof structure for a waterproof base surface,
A plurality of waterproof sheets arranged at intervals on the waterproof base surface, and one of the two adjacent waterproof sheets sandwiches the first rubber-based asphalt layer and the first rubber-based asphalt layer. 1 comprising an upper nonwoven fabric layer and a first lower nonwoven fabric layer, the other waterproof sheet comprising a second rubber asphalt layer, and a second upper nonwoven fabric layer and a second lower nonwoven fabric layer sandwiching the second rubber asphalt layer. A plurality of tarpaulins,
An end portion of the first upper nonwoven fabric layer, an end portion of the second upper nonwoven fabric layer, a side surface of the one waterproof sheet, a side surface of the other waterproof sheet, and between the one waterproof sheet and the other waterproof sheet. An acrylic water-soluble primer composition applied to the waterproof base surface in
A waterproof coating layer provided on the primer composition and received in the primer composition;
The waterproof sheet includes a joint portion made of a mesh-like woven fabric, a part of which is exposed on an end portion of the waterproof sheet, and the other portion is embedded in an upper part or a lower part of the end part of the rubberized asphalt layer. Seat waterproof structure. 防水基礎面のためのシート防水工法であって、
前記防水基礎面の上に、間隔を置かれた複数の防水シートであって隣接する２つのうち一方の防水シートが、第１ゴム系アスファルト層と、該第１ゴム系アスファルト層を挟む第１上部不織布層及び第１下部不織布層とからなり、他方の防水シートが、第２ゴム系アスファルト層と、該第２ゴム系アスファルト層を挟む第２上部不織布層及び第２下部不織布層とからなる複数の防水シートを配置すること、
前記第１上部不織布層の端部、前記第２上部不織布層の端部、前記一方の防水シートの側面、前記他方の防水シートの側面及び前記一方の防水シートと前記他方の防水シートとの間における前記防水基礎面にアクリル系水溶性プライマー組成物を塗布すること、
前記プライマー組成物が硬化した後、その上に塗膜防水材を、該塗膜防水材が前記プライマー組成物に受け入れられるように供給すること、
必要に応じて、前記シート防水構造上にトップコーティング材を塗布することを含み、
前記防水シートは、該防水シートの端部上に一部が露出し、前記ゴム化アスファルト層の端部の上部または下部に他部が埋め込まれたメッシュ状の織布からなる継ぎ手部を含む、シート防水工法。 A waterproof sheet construction method for a waterproof base surface,
A first waterproof asphalt layer and a first rubber-based asphalt layer sandwiching the first rubber-based asphalt layer between the two waterproof sheets that are spaced apart on the waterproof base surface. It consists of an upper nonwoven fabric layer and a first lower nonwoven fabric layer, and the other waterproof sheet comprises a second rubber-based asphalt layer and a second upper nonwoven fabric layer and a second lower nonwoven fabric layer sandwiching the second rubber-based asphalt layer. Arranging a plurality of tarpaulins,
An end portion of the first upper nonwoven fabric layer, an end portion of the second upper nonwoven fabric layer, a side surface of the one waterproof sheet, a side surface of the other waterproof sheet, and between the one waterproof sheet and the other waterproof sheet. Applying an acrylic water-soluble primer composition to the waterproof base surface in
After the primer composition is cured, supplying a waterproofing film on the primer composition so that the waterproofing film is received by the primer composition;
Applying a top coating material on the sheet waterproof structure, if necessary,
The waterproof sheet includes a joint portion made of a mesh-like woven fabric, a part of which is exposed on an end portion of the waterproof sheet, and the other portion is embedded in an upper part or a lower part of the end part of the rubberized asphalt layer. Sheet waterproofing method. 前記プライマー組成物は、手動で、あるいはローラーを備えた供給装置によって連続的に提供する、請求項２に記載のシート防水工法。   3. The sheet waterproofing method according to claim 2, wherein the primer composition is provided manually or continuously by a supply device equipped with a roller. 前記防水基礎面上に前記防水シートを配置するに先立ち、前記防水基礎面上にプライマー層を塗布する、請求項２に記載のシート防水工法。   The sheet waterproofing method according to claim 2, wherein a primer layer is applied on the waterproof base surface prior to disposing the waterproof sheet on the waterproof base surface.
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JPS62160350A (en) * 1986-01-07 1987-07-16 日東電工株式会社 Waterproof sheet and waterproof construction method using said sheet
JPS6351557A (en) * 1986-08-20 1988-03-04 新和防水化工株式会社 Waterproof construction method of building structure
JP2002038660A (en) * 2000-07-25 2002-02-06 Shinsuke Igaki Waterproof construction method for building

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