JP4066323B2 - Waterproof finish structure and waterproof finish method - Google Patents
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Description
【０００１】
【発明の属する技術分野】
本発明は建築物等の床、駐車場、屋上等の新規若しくは既設の部位に防水施工された防水仕上げ構造とその施工方法に関するものであり、詳しくは、床などの基材上に通気性シート体、該通気性シート体の一部表面若しくは全面に仕上げられた繊維強化樹脂層、固定具、更に繊維強化樹脂層が順次施工されて仕上げられた防水仕上げ構造とその施工方法に関するものである。
【産業上の詳細な説明】
【０００２】
【従来の技術】
従来、建築物の屋上、床、駐車場等の新規若しくは既設の部位における防水には、防水シートによる防水、樹脂を塗布して防水層を形成させる樹脂防水、樹脂と繊維強化材とを複合化させたＦＲＰ防水などの施工方法が採用されてきた。
このような防水施工に際しては、充分が乾燥した下地に施工が施されないと下地の水分の蒸気圧或いは空気膨張などにより防水層にフクレが生じて剥離する、漏水する等の原因となる、美観を損ねる等の問題が発生する。しかしながら施工期間を短縮したい要求が強く改善した施工法が求められていた。
また、既設の樹脂防水床、ＦＲＰ床などの補修施工にあっては、既設床の取り剥がしには多大な工数、時間を要するために実質不可能な状況にあり、既設の床をそのままの状態で施工できる補修的に施工法が求められていた。
【０００３】
【発明が解決するための手段】
本発明は、このような状況に鑑みて検討、開発されたものであり、下地の状態が従来の施工法では必ずしも適当ではない状態であっても防水施工できる防水仕上げ方法と防水仕上げ構造を提供せんとするものであり、以下詳細に説明する。
【０００４】
本発明の防水仕上げ構造は前記のように、新規床、既設床などの基体上に通気性シート体を配置し、その上に部分的に繊維強化樹脂層を仕上げたのち、該繊維強化樹脂層の上から該基体に固定具を打ち込み、次いで少なくとも固定具の上に繊維強化樹脂層を施工して仕上げる防水仕上げ方法、或いは床などの基体上に通気性シート体を配置し、その全面上に繊維強化樹脂層を施工したのち、該繊維強化樹脂層から該基体に固定具を打ち込み、次いで少なくとも該固定具の上に繊維強化樹脂層を施工して仕上げることにより仕上げられる。
【０００５】
本発明になる防水仕上げ方法は前記のように新設の床、屋上、駐車場、既設の床、駐車場、屋上などに適用できるものであつて、基体の材質についてもモルタル、コンクリート、発泡コンクリート、鉄製プレート、石製の板体、木製板体、樹脂防水床、などあらゆる素材からなるものについて施工できるが、中でも基体の含水率が問題になるモルタル、コンクリート、発泡コンクリートなどの基体に対して、基体の含水率が高くても施工できる点、老朽化した既設の樹脂防水床などの上に施工できる点で好都合であり、どのような施工条件においても問題なく施工実施できるようにしたものである。
【０００６】
本発明に係わる通気性シート体は通気性を持つ材質若しくは構造からなるものであれば、特に限定されるものではないが、その１例としてポリエステル、ナイロン、ビニロン、アクリルなどの合成繊維、或いはこれらの混合された複合繊維、ガラス繊維などの無機繊維、麻繊維など天然繊維、合成繊維に無機繊維、天然繊維などが混合された複合繊維から加工された不織布、織布など基材の片面若しくは両面に薄い非通気性層が積層されたもの、或いは該非通気性層の両面に該基材が積層されたものなどが使用される。
このような通気性シート体では、該通気性層の基材は、好ましくは０．５〜２ｍｍの厚みのあるものが好ましい。０．５ｍｍ以下では経時的に厚みがうすくなってしまい通気性がなくなる場合が予想され好ましくない。
また、通気性シート体には適所に円形、方形などの各種の形状の孔が設けられたものであれば、繊維強化樹脂層の施工に使用された樹脂が該孔を通して基体表面にまで連続した状態で硬化して繊維強化樹脂層が形成されるため、固定具による接合と併せて基体との接合を確保することができ、固定具の打設個数を少なくできる。
【０００７】
該非通気性層には樹脂シート、例えばポリエチレン樹脂、ポリプロピレン樹脂、塩化ビニール樹脂などの合成樹脂シート、或いはアスファルトシート等の厚み０．１〜１．０ｍｍ程度の非通気性の素材が使用される。
【０００８】
非通気性層が片面のみに積層された通気性シート体の場合は該非通気性層を上に向けて配置することが望ましい。非通気性層を上に位置させることにより、その上に施工する熱硬化性樹脂を該通気性シート体の内部にまで浸透を防止して通気性が損なわれることを防止できる。
【０００９】
その他の通気性シート体の例として、例えば各種ゴムシート、アスファルトシート、プラスチックシートなどからなる厚み１〜５ｍｍのシートの表面に、平面形状が格子状、６角形状などであって、平面形状が相互に連接した溝の設けられた通気性シート体なども、溝のある面を基体側に接触させ溝を連通した通気部として活用できる通気性シート体として利用できる。
【００１０】
基体と通気性シート体とは単に配置されるか、接着剤で接着して固定されてもよい。
また、直接、基体との接着が難しい場合は基体表面にウレタン樹脂系、エボキシ樹脂系などの樹脂系プライマーを塗布したのち接着剤で接着されてもよい。
【００１１】
通気性シート体の表面の一部若しくは全面に繊維強化樹脂層が行われる。
該繊維強化樹脂層の形成は、該通気性シート体の基材に積層された非通気性層の表面に強化繊維シート、例えばガラス繊維シートを配置した上に硬化剤の配合されたエポキシ樹脂、不飽和ポリエステル樹脂、ビニルエステル樹脂等の熱硬化性樹脂を塗布し、更に強化繊維シートを重ねるか、該通気性シート体の表面の非通気性層上に熱硬化性樹脂を塗布したのち、塗布面に強化繊維シートを重ね、更に熱硬化性樹脂を塗布するなどして、強化繊維シートに熱硬化性樹脂を浸透させた状態で硬化させて繊維強化樹脂層を形成させることにより得られる。
【００１２】
更に、このように形成された繊維強化樹脂層の適所に孔を設け、該孔を通して固定具を基体まで打ち込んで、該繊維強化樹脂層と該通気性シート体とを該下地に固定させる。
孔のサイズは固定具の軸径よりも大きいサイズとして固定具を遊嵌状態で基体に打ち込むことが望ましい。孔径と固定具の軸径が同一であるか若しくは小さいと固定具を打ち込む際に繊維強化樹脂層を傷める、繊維強化樹脂層の収縮・膨張すると応力が固定具に及んで固定具が壊れる、繊維強化樹脂層が破損するなどの問題が発生するため好ましくない。
【００１３】
このように孔と固定具の軸との間に設けられた空隙には弾性シーリング材、例えば弾性のある材質からなるシリコンシーリング材、ポリサルファイドシーリング材、ウレタン樹脂シーリング材などを注入して充填させることにより固定具と繊維強化樹脂層とは緩やかに固定され、温度変化などにより繊維強化樹脂層が収縮・膨張しても応力が固定具に直接波及せず、繊維強化樹脂層の収縮・膨張の応力により固定具が外れたり、破損することがなくなり、耐久性に優れた防水仕上げ構造が得られる。
【００１４】
該固定具には、エアーガン或いは金槌で下地まで打ち込む打ち込み式固定金具、或いは下孔を設けておき開脚プラグと一体として使用されるビスを固定する固定金具などが使用される。該固定具の材質は鉄、ステンレス、アルミ等の金属製のもののほか、プラスチック製のものであつても使用できる。
また、孔の設けられた通気性シート体を使用した場合には、通気性シート体の上に形成させる繊維強化樹脂層に使用された樹脂が該孔を通して基体と連通するため、固定効果が得られることから、固定具の数を少なくすることができる。
【００１５】
該通気性シート体の表面の一部に繊維強化樹脂層を設け、該繊維強化樹脂層の上から基体に固定具を打ち込んで固定した場合は、固定具、該繊維強化樹脂層並びに該通気性シート体を覆う状態で、繊維強化樹脂層を形成させることにより請求項１に係わる防水仕上げ構造が得られる。
また該通気性シート体の全面に繊維強化樹脂層を設け、固定具を該繊維強化樹脂層の上から基体に打ち込んで固定する施工法を採用する場合は、少なくとも該固定具の上部を更に繊維強化樹脂層を設けることにより請求項２の防水仕上げ構造が得られる。
なお、表面の仕上がり外観を向上させたり、耐候性能を向上するためにアクリル樹脂系塗料、アクリル・シリコン樹脂系塗料、アクリル・ウレタン樹脂系塗料、不飽和ポリエステル樹脂系塗料などのトップコートが塗布されてもよい。
【００１６】
【発明の実施の形態】
実施例１
打設１０日経過した含水率９．０％のコンクリート床に、坪量１８０ｇ／ｍ2のポリエステル繊維から加工された不織布の表面に厚み０．３ｍｍの軟質塩化ビニール樹脂フイルムを積層した通気性シート体を配置したのち、該通気性シート体の適所の３０センチ角に坪量４５０ｇ／ｍ2のガラス繊維マットをおいたのち、硬化剤を配合した不飽和ポリエステル樹脂（アイカ工業（株）ジョリエースＪＥ−２０００）を１．５ｋｇ／ｍ2塗布して該ガラス繊維マットに浸透、硬化させて繊維強化樹脂層を形成した。次いで該繊維強化樹脂層から該コンクリート床に長さ６０ｍｍのアンカーで直径６０ｍｍの円盤状の固定具を固定したのち、該繊維強化樹脂層を設けていない通気性シート体の表面並びに該固定具の上に、前記と同様にして繊維強化樹脂層を形成し、更にトップコートとして硬化剤を配合した不飽和ポリエステル樹脂（アイカ工業（株） ジョリエースＪＥ−２０８０）を０．４ｋｇ／ｍ2塗布して防水仕上げ構造を得た。施工後１年経過後において防水層のフクレ、防水性などについて何ら異常は認められなかった。
【００１７】
実施例２
打設１０日経過した含水率９．１％のコンクリート床に、坪量１８０ｇ／ｍ2のポリエステル繊維から加工された不織布の表面に厚み０．３ｍｍの軟質塩化ビニール樹脂フイルムを積層した通気性シート体を配置し、該通気性シート体の全面に坪量４５０ｇ／ｍ2のガラス繊維マットをおいたのち、硬化剤を配合した不飽和ポリエステル樹脂（アイカ工業（株）ジョリエースＪＥ−２０００）を１．５ｋｇ／ｍ2塗布して該ガラス繊維マットに浸透、硬化させて繊維強化樹脂層を形成した。次いで該繊維強化樹脂層から該コンクリート床に長さ６０ｍｍのアンカーで直径６０ｍｍの円盤状の固定具を固定したのち、該固定具の上に、前記と同様にして繊維強化樹脂層を形成し、更にトップコートとして硬化剤を配合した不飽和ポリエステル樹脂（アイカ工業（株）ジョリエース ＪＥ−２０８０）を０．４ｋｇ／ｍ2塗布して防水仕上げ構造を得た。施工後１年経過後において防水層のフクレ、防水性などについて何ら異常は認められなかった。
【００１８】
実施例３
施工後１０年経過したウレタン樹脂防水仕上げの床（下地と防水層の間は未乾燥の状態）の上に実施例１と同一の施工を実施して実施例３の床を仕上げた。施工後１年経過後において防水層のフクレ、防水性などについて何ら異常は認められなかった。
【００１９】
比較例１
実施例１に使用したと同一の床にウレタン樹脂プライマー（アイカ工業（株）ジョリエース ＪＵ−１２７０）を０．２ｋｇ／ｍ2塗布し乾燥したのち、ウレタン樹脂（アイカ工業（株）ジョリシールＪＷ−４１）を２ｋｇ／ｍ2塗布して樹脂防水床を仕上げた。施工３０日経過したのち、床の表面状態、異常の有無について確認したところ、床面にフクレが多数認められた。
【００２０】
比較例２
実施例１に使用したと同一の床にウレタン樹脂プライマー（アイカ工業（株）ジョリエース ＪＵ−１２７０）を０．２ｋｇ／ｍ2塗布し、乾燥させたのち、硬化剤を配合した不飽和ポリエステル樹脂（アイカ工業（株）ジョリエースＪＥ−２０００）を０．５ｋｇ／ｍ2塗布し、直ちに坪量４５０ｇ／ｍ2のガラス繊維マットを貼り付ける。更に硬化剤を配合した不飽和ポリエステル樹脂（アイカ工業（株）ジョリエースＪＥ−２０００）を１．０ｋｇ／ｍ2塗布して防水層とした。次いでトップコートとして硬化剤を配合した不飽和ポリエステル樹脂（アイカ工業（株）ジョリエースＪＥ−２０８０）を０．４ｋｇ／ｍ2塗布した。
施工後１年経過後において防水層の浮きが発生し、下地と繊維強化樹脂層との間に水が溜まっているのが認められた。
【００２１】
【発明の効果】
従来、下地の含水率が高いために施工できない、既設床を取り剥がさないと施工できないなどの問題があるため、極めて限られた物件しか施工できなかたが、本発明になる防水仕上げ方法は、下地から揮発する水蒸気が通気性シート体を通じて外部に放出されるため、下地の含水率が高くても施工できる効果がある。また、既設の樹脂防水などの下地を取り剥がさなくてもその上に施工できるため、施工物件、施工条件に制約されることなく直ちに施工できる。
また、本発明の防水仕上げ構造は、通気性シート体を介して繊維強化樹脂層が設けられ、しかも限定された適所において打ち込まれた固定具により基体と繊維強化樹脂層とが通気性シート体を介して接続された構造であるために、防水層と基体とが緩やかに固定されており、繊維強化樹脂層と基体との間に寸法変化の差が生じても両者の間に応力が生じることがなく、防水仕上げ構造に損傷に至らず剥離などが発生しない。
特に繊維強化樹脂層に設けた孔が固定具の軸径よりも大きく設定され、両者の間の空隙に弾性シーリング材などを充填した施工がなされた場合には、繊維強化樹脂層と下地とが緩やかに接続される構造に仕上げられるため、繊維強化樹脂層と基体とが接続されている故に生じる応力が大幅に緩衝され、長期間の使用に耐えられる防水構造となる。
なお、孔の設けられた通気性シート体が使用された場合には、孔を通じて繊維強化樹脂層の施工に使用される樹脂が基体表面にまで連通するため、固定具の固定と併せて樹脂による固定効果が得られる。
【００２２】
【図面の簡単な説明】
【図１】基体（１）上に配置した通気性シート体（２）、該通気性シート体（２）上に施工された繊維強化樹脂層（３）、該繊維強化樹脂層から該基体（１）に打ち込まれた固定具（５）、繊維強化樹脂層の形成されなかった通気性シート体（２）部分に繊維強化樹脂層（４）並びに該固定具（５）を覆って施工された繊維強化樹脂層（６）とから仕上げられている１実施例の防水仕上げ構造の部分断面図。
【図２】基体（１）上に配置した通気性シート体（２）の全面に繊維強化樹脂層（３）が施工され、固定具（５）が打ち込まれ、該固定具（５）の上に繊維強化樹脂層（４）が形成された１実施例の防水仕上げ構造の部分断面図。
【００２３】
【符合の説明】
１ 基体
２ 通気性シート体
３、４、６ 繊維強化樹脂層
５ 固定具[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a waterproof finish structure waterproofed on a new or existing site such as a floor of a building, a parking lot, a rooftop, and the construction method, and more specifically, a breathable sheet on a base material such as a floor. The present invention relates to a waterproof finishing structure in which a body, a fiber reinforced resin layer finished on a partial surface or the entire surface of the breathable sheet body, a fixture, and a fiber reinforced resin layer are sequentially applied and finished, and a construction method thereof.
[Detailed explanation on industry]
[0002]
[Prior art]
Conventionally, for waterproofing in new or existing parts such as building rooftops, floors, parking lots, etc., waterproofing with waterproof sheets, resin waterproofing that forms a waterproof layer by applying resin, resin and fiber reinforcement are combined Construction methods such as FRP waterproofing have been adopted.
In such waterproof construction, if it is not applied to a sufficiently dry base, the waterproof layer will cause bulges due to vapor pressure or air expansion of the base, causing peeling, leakage, etc. Problems such as damage occur. However, there has been a demand for a construction method that strongly improves the demand for shortening the construction period.
In addition, existing resin waterproof floor, is Tsu repair construction near such as FRP floor, peeled off great deal of man-hours to the existing floor, there is virtually impossible situation in order to take the time, existing floor of it There was a need for a repair method that could be applied in a state of repair.
[0003]
[Means for Solving the Invention]
The present invention is considered in view of such circumstances, has been developed, the state of the underlying waterproof finishing method a waterproof finish structure capable necessarily waterproofing execution be appropriate and do not Tsu state der the conventional construction methods This is provided and will be described in detail below.
[0004]
As described above, in the waterproof finish structure of the present invention, a breathable sheet is disposed on a substrate such as a new floor or an existing floor, and a fiber reinforced resin layer is partially finished thereon, and then the fiber reinforced resin layer is formed. A waterproof finishing method in which a fixture is driven into the substrate from above, and then a fiber reinforced resin layer is applied and finished on at least the fixture, or a breathable sheet body is disposed on a substrate such as a floor, and the entire surface thereof is disposed. After the fiber reinforced resin layer is applied, a fixing tool is driven into the substrate from the fiber reinforced resin layer, and then the fiber reinforced resin layer is applied and finished on at least the fixing tool.
[0005]
The waterproof finishing method according to the present invention is applicable to new floors, rooftops, parking lots, existing floors, parking lots, rooftops, etc. as described above, and the base material is also mortar, concrete, foamed concrete, Although it can be constructed for all materials such as iron plate, stone plate, wooden plate, resin waterproof floor, etc., especially for substrates such as mortar, concrete, foamed concrete, etc. where the moisture content of the substrate is a problem It is advantageous in that it can be constructed even when the moisture content of the substrate is high, and it can be constructed on an old resin waterproof floor that has deteriorated, and can be constructed without any problems under any construction conditions. .
[0006]
The breathable sheet according to the present invention is not particularly limited as long as it is made of a breathable material or structure, but examples thereof include synthetic fibers such as polyester, nylon, vinylon, and acrylic, or these One side or both sides of a base material such as a composite fiber, a fiber such as a glass fiber, a natural fiber such as a hemp fiber, a nonwoven fabric processed from a composite fiber in which a synthetic fiber is mixed with an inorganic fiber, a natural fiber, etc. A thin air-permeable layer is laminated, or a material in which the base material is laminated on both surfaces of the air-impermeable layer.
In such a breathable sheet body, the base material of the breathable layer is preferably one having a thickness of 0.5 to 2 mm . If the thickness is 0.5 mm or less, the thickness becomes thinner with time and the case where air permeability is lost is expected, which is not preferable.
In addition, if the breathable sheet body has holes of various shapes such as a circle and a rectangle in place, the resin used for the construction of the fiber reinforced resin layer continues to the substrate surface through the holes. Since the fiber-reinforced resin layer is formed by curing in the state, it is possible to ensure the bonding with the base body together with the bonding with the fixing tool, and the number of the fixing tools to be placed can be reduced.
[0007]
For the non-breathable layer, a non-breathable material having a thickness of about 0.1 to 1.0 mm such as a resin sheet, for example, a synthetic resin sheet such as polyethylene resin, polypropylene resin, vinyl chloride resin, or asphalt sheet is used. .
[0008]
In the case of a breathable sheet body in which the non-breathable layer is laminated only on one side, it is desirable to arrange the non-breathable layer facing up. By disposing the non-breathable layer on the top, it is possible to prevent the thermosetting resin applied thereon from penetrating into the breathable sheet body and thereby preventing the breathability from being impaired.
[0009]
Other examples of air-permeable sheet, for example, various rubber sheets, asphalt sheet, the surface of the sheet having a thickness of 1 to 5 mm consisting of a plastic sheet, the planar shape of the grid-shaped, and Tsu der like hexagon, flat A breathable sheet body provided with grooves whose shapes are connected to each other can also be used as a breathable sheet body that can be used as a vent portion in which the grooved surface is brought into contact with the substrate side.
[0010]
The substrate and the air-permeable sheet body may be simply arranged or may be fixed by bonding with an adhesive.
Further, when it is difficult to directly adhere to the substrate, a resin primer such as urethane resin or epoxy resin may be applied to the surface of the substrate and then adhered with an adhesive.
[0011]
A fiber reinforced resin layer is formed on a part or the entire surface of the breathable sheet body.
The fiber reinforced resin layer is formed by arranging a reinforcing fiber sheet, for example, a glass fiber sheet on the surface of the non-breathable layer laminated on the base material of the breathable sheet body, and an epoxy resin in which a curing agent is blended. Apply a thermosetting resin such as unsaturated polyester resin or vinyl ester resin, and then add a reinforcing fiber sheet, or apply a thermosetting resin on the non-breathable layer on the surface of the breathable sheet. It is obtained by forming a fiber reinforced resin layer by stacking the reinforcing fiber sheet on the surface and further curing the thermosetting resin in a state where the thermosetting resin is infiltrated into the reinforcing fiber sheet.
[0012]
Furthermore, a hole is provided at an appropriate position of the fiber reinforced resin layer formed as described above, and a fixing tool is driven to the base through the hole to fix the fiber reinforced resin layer and the breathable sheet body to the base.
It is desirable that the size of the hole is larger than the shaft diameter of the fixture, and the fixture is driven into the base body in a loosely fitted state. If the hole diameter and the shaft diameter of the fixing device are the same or small, the fiber reinforced resin layer will be damaged when the fixing device is driven, and when the fiber reinforced resin layer contracts or expands, the stress reaches the fixing device and the fixing device breaks. This is not preferable because problems such as breakage of the reinforced resin layer occur.
[0013]
In this way, an elastic sealing material, for example, a silicon sealing material made of an elastic material, a polysulfide sealing material, a urethane resin sealing material, or the like, is injected and filled into the gap provided between the hole and the shaft of the fixture. As a result, the fixture and the fiber reinforced resin layer are gently fixed, and even if the fiber reinforced resin layer contracts or expands due to temperature changes, the stress does not directly affect the fixture, but the stress of the fiber reinforced resin layer contracts or expands. This prevents the fixture from being detached or damaged, and a waterproof finish structure with excellent durability can be obtained.
[0014]
As the fixing tool, a driving-type fixing bracket that is driven to the ground with an air gun or a hammer, or a fixing bracket that is provided with a lower hole and fixes a screw that is used integrally with an open leg plug, or the like is used. The fixture may be made of plastic, in addition to metal such as iron, stainless steel, and aluminum.
In addition, when a breathable sheet body provided with holes is used, the resin used for the fiber reinforced resin layer formed on the breathable sheet body communicates with the substrate through the holes, so that a fixing effect is obtained. Therefore, the number of fixtures can be reduced.
[0015]
When a fiber reinforced resin layer is provided on a part of the surface of the breathable sheet body and a fixing tool is driven and fixed onto the base from above the fiber reinforced resin layer, the fixing tool, the fiber reinforced resin layer, and the air permeability The waterproof finish structure according to claim 1 is obtained by forming the fiber reinforced resin layer in a state of covering the sheet body.
Further, when adopting a construction method in which a fiber reinforced resin layer is provided on the entire surface of the breathable sheet body and the fixing tool is driven and fixed onto the base from above the fiber reinforced resin layer, at least the upper part of the fixing tool is further fiber-reinforced. By providing the reinforced resin layer, the waterproof finish structure of
Top coats such as acrylic resin-based paints, acrylic / silicone resin-based paints, acrylic / urethane resin-based paints, and unsaturated polyester resin-based paints are applied to improve the surface finish and weather resistance. May be.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Example 1
Breathability of a non-woven fabric processed from polyester fiber with a basis weight of 180 g / m 2 on a concrete floor with a moisture content of 9.0% after 10 days of casting and laminated with a soft vinyl chloride resin film with a thickness of 0.3 mm After placing the sheet body, a glass fiber mat having a basis weight of 450 g / m 2 is placed at a proper 30 cm square of the breathable sheet body, and then an unsaturated polyester resin (Aika Industry Co., Ltd. Ace JE-2000) to 1.5 k g / m 2 applied to penetrate to the glass fiber mat to form a fiber-reinforced resin layer is cured. Next, after fixing a disk-shaped fixing tool having a diameter of 60 mm from the fiber reinforced resin layer to the concrete floor with an anchor having a length of 60 mm , the surface of the breathable sheet body not provided with the fiber reinforced resin layer and the fixing A fiber reinforced resin layer was formed on the tool in the same manner as described above, and an unsaturated polyester resin (Aika Kogyo Co., Ltd., Jolies JE-2080) blended with a curing agent as a top coat was 0.4 kg / m 2. A waterproof finish structure was obtained by application. One year after the construction, no abnormality was observed with respect to the swelling and waterproofing of the waterproof layer.
[0017]
Example 2
Breathability of a non-woven fabric processed from polyester fiber with a basis weight of 180 g / m 2 and a 0.3- mm- thick soft vinyl chloride resin film laminated on a concrete floor with a moisture content of 9.1% after 10 days of casting. After placing a sheet body, placing a glass fiber mat with a basis weight of 450 g / m 2 on the entire surface of the breathable sheet body, an unsaturated polyester resin blended with a curing agent (Aika Kogyo Co., Ltd. Jolieth JE-2000) the 1.5 k g / m 2 applied to penetrate to the glass fiber mat to form a fiber-reinforced resin layer is cured. Next, after fixing a disk-shaped fixture having a diameter of 60 mm from the fiber-reinforced resin layer to the concrete floor with an anchor having a length of 60 mm , a fiber-reinforced resin layer is formed on the fixture in the same manner as described above. Furthermore, a waterproof finish structure was obtained by applying 0.4 kg / m 2 of an unsaturated polyester resin (Aika Kogyo Co., Ltd. Joliece JE-2080) blended with a curing agent as a top coat. One year after the construction, no abnormality was observed with respect to the swelling and waterproofing of the waterproof layer.
[0018]
Example 3
The floor of Example 3 was finished by carrying out the same construction as Example 1 on a urethane resin waterproofed floor 10 years after the construction (the undried state between the foundation and the waterproof layer). One year after the construction, no abnormality was observed with respect to the swelling and waterproofing of the waterproof layer.
[0019]
Comparative Example 1
After applying 0.2 kg / m 2 of urethane resin primer (Aika Kogyo Co., Ltd. JU-1270) to the same floor used in Example 1, and drying it, urethane resin (Aika Kogyo Co., Ltd. Jolly Seal JW) -41) was applied at 2 kg / m 2 to finish a waterproof resin floor. After 30 days of construction, the floor surface condition and presence / absence of abnormality were confirmed.
[0020]
Comparative Example 2
Unsaturated polyester resin in which 0.2 kg / m 2 of urethane resin primer (Aika Kogyo Co., Ltd. JU-1270) was applied to the same floor as used in Example 1, dried, and then mixed with a curing agent. (Aika Kogyo Co., Ltd. Jolieth JE-2000) is applied at 0.5 kg / m 2 , and a glass fiber mat having a basis weight of 450 g / m 2 is immediately applied. Furthermore, 1.0 kg / m 2 of an unsaturated polyester resin (Aika Kogyo Co., Ltd. Jolieth JE-2000) blended with a curing agent was applied to form a waterproof layer. Next, 0.4 kg / m 2 of an unsaturated polyester resin (Aika Kogyo Co., Ltd. Jolieth JE-2080) blended with a curing agent as a top coat was applied.
One year after the construction, the waterproof layer floated and water was found to be accumulated between the base and the fiber reinforced resin layer.
[0021]
【The invention's effect】
Conventionally, because there is a problem that it can not be constructed because the moisture content of the foundation is high, or it can not be constructed unless the existing floor is removed, the waterproof finishing method according to the present invention is the foundation. Since the water vapor that volatilizes is released to the outside through the breathable sheet body, there is an effect that the construction can be performed even if the moisture content of the base is high. Moreover, since it can construct on the existing resin waterproofing etc. without removing the foundation, it can be constructed immediately without being restricted by construction properties and construction conditions.
In the waterproof finish structure of the present invention, a fiber reinforced resin layer is provided via a breathable sheet body, and the base and the fiber reinforced resin layer are formed of a breathable sheet body by a fixture driven in a limited place. The waterproof layer and the base are loosely fixed because of the structure connected through the cable, and even if a dimensional change occurs between the fiber reinforced resin layer and the base, stress is generated between the two. There will be no damage to the waterproof structure and no peeling will occur.
In particular, when the hole provided in the fiber reinforced resin layer is set larger than the shaft diameter of the fixture and the gap between them is filled with an elastic sealing material or the like, the fiber reinforced resin layer and the base Since the structure is gently connected, the stress generated due to the connection between the fiber reinforced resin layer and the substrate is greatly buffered, and the waterproof structure can withstand long-term use.
In addition, when a breathable sheet body provided with holes is used, the resin used for the construction of the fiber reinforced resin layer communicates to the substrate surface through the holes. A fixed effect is obtained.
[0022]
[Brief description of the drawings]
FIG. 1 shows a breathable sheet body (2) disposed on a substrate (1), a fiber reinforced resin layer (3) applied on the breathable sheet body (2), and the substrate ( The fixing device (5) driven into 1) was applied to the breathable sheet body (2) where the fiber reinforced resin layer was not formed so as to cover the fiber reinforced resin layer (4) and the fixing device (5). The fragmentary sectional view of the waterproof finish structure of one Example finished from the fiber reinforced resin layer (6).
[Fig. 2] A fiber reinforced resin layer (3) is applied to the entire surface of a breathable sheet body (2) disposed on a substrate (1), and a fixture (5) is driven into the upper surface of the fixture (5). The fragmentary sectional view of the waterproof finish structure of 1 Example by which the fiber reinforced resin layer (4) was formed in.
[0023]
[Explanation of sign]
DESCRIPTION OF SYMBOLS 1
Claims (4)
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| JP2014098291A (en) * | 2012-11-16 | 2014-05-29 | Aica Kogyo Co Ltd | Waterproof finish structure and waterproof finish method |
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| KR101243492B1 (en) | 2011-04-26 | 2013-03-13 | 이영환 | Water-proofing method combined fiberglass reinforced plastic(FRP) and membrane water-proofing |
| JP5850250B2 (en) * | 2012-05-15 | 2016-02-03 | 清水建設株式会社 | Concrete structure material and construction method thereof |
| CN114382112B (en) * | 2022-01-21 | 2023-08-15 | 广东省第五建筑工程有限公司 | Waterproof structure of building basement and construction method thereof |
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