JP2978509B2 - Adhesive insulating sheet and insulating sheet using the same - Google Patents
Adhesive insulating sheet and insulating sheet using the sameInfo
- Publication number
- JP2978509B2 JP2978509B2 JP1207338A JP20733889A JP2978509B2 JP 2978509 B2 JP2978509 B2 JP 2978509B2 JP 1207338 A JP1207338 A JP 1207338A JP 20733889 A JP20733889 A JP 20733889A JP 2978509 B2 JP2978509 B2 JP 2978509B2
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- adhesive
- asphalt
- insulating sheet
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000853 adhesive Substances 0.000 title claims description 61
- 230000001070 adhesive effect Effects 0.000 title claims description 60
- 239000010426 asphalt Substances 0.000 claims description 38
- 238000000034 method Methods 0.000 claims description 38
- 238000004078 waterproofing Methods 0.000 claims description 17
- 238000010276 construction Methods 0.000 claims description 15
- 229920001971 elastomer Polymers 0.000 claims description 12
- 239000005060 rubber Substances 0.000 claims description 12
- 229920005992 thermoplastic resin Polymers 0.000 claims description 10
- 239000004215 Carbon black (E152) Substances 0.000 claims description 9
- 229930195733 hydrocarbon Natural products 0.000 claims description 9
- 150000002430 hydrocarbons Chemical class 0.000 claims description 9
- 239000000758 substrate Substances 0.000 claims description 8
- -1 polyethylene Polymers 0.000 description 15
- 239000004698 Polyethylene Substances 0.000 description 13
- 239000004745 nonwoven fabric Substances 0.000 description 13
- 229920000573 polyethylene Polymers 0.000 description 13
- 239000003921 oil Substances 0.000 description 12
- 238000009413 insulation Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229920000728 polyester Polymers 0.000 description 5
- 229920006267 polyester film Polymers 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 230000035515 penetration Effects 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 229920006262 high density polyethylene film Polymers 0.000 description 3
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical compound C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010058 rubber compounding Methods 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明はコンクリート建造物などの建造物の屋上防水
工法において使用する絶縁シートおよび該絶縁シートを
用いた絶縁防水工法に関する。Description: TECHNICAL FIELD The present invention relates to an insulating sheet used in a rooftop waterproofing method for a building such as a concrete building, and an insulating waterproofing method using the insulating sheet.
（従来の技術と課題） 従来、コンクリート建造物などの建造物の屋上には、
雨水等の漏水を防止する目的で種々の防水工法が施され
ている。この防水工法は一般的には下記のように分類さ
れている。(Conventional technology and issues) Conventionally, on the roof of a building such as a concrete building,
Various waterproofing methods have been applied in order to prevent leakage of rainwater and the like. This waterproofing method is generally classified as follows.
１）アスファルト防水工法 ２）シート防水工法 ３）塗膜防水工法 これらは防水層の素材或は形状により分類された工法
であるが、何れの工法を用いる場合でも防水層と防水下
地との間の接着の問題がある。この接着の方法に関し
て、従来は、防水層を防水下地に全面密着張りする密着
工法が専ら行なわれていた。この工法は施工中の張りじ
まい、末端処理が容易であるなどの特徴があるが、一方
で、防水下地中の水分が蒸発し防水層との間に溜る結果
防水層の一部に膨らみを生じたり、或はまた、防水下地
の亀裂やムーブメントに起因する破断抵抗性が小さい等
の欠点があった。この欠点を補う為、近年防水層を防水
下地に全面接着をしない絶縁工法（部分密着工法とも言
う）が行なわれるようになった。1) Asphalt waterproofing method 2) Sheet waterproofing method 3) Paint film waterproofing method These are methods classified according to the material or shape of the waterproofing layer. There is an adhesion problem. As for this bonding method, conventionally, an adhesion method in which a waterproof layer is entirely adhered to a waterproof base has been exclusively performed. This method has features such as stretching during construction and easy terminal treatment, but on the other hand, water in the waterproof base evaporates and accumulates between the waterproof layer and swells in a part of the waterproof layer. In addition, there have been disadvantages such as a low breaking resistance due to cracks and movements of the waterproof substrate. In order to compensate for this drawback, an insulation method (also referred to as a partial adhesion method) in which a waterproof layer is not entirely adhered to a waterproof base has recently been used.
この絶縁工法は防水層と防水下地とを一体化しない各
々独立した層となし、２つの層を部分的に接着する方法
で、非接着部を水蒸気が自由に移動し、たとえば脱気筒
から水蒸気を大気中に放出し、また、防水層と防水下地
との間に生ずる力を大面積に分散させることができるた
め、防水層の膨れや亀裂を減らすことができる特徴があ
る。絶縁工法の中で最も古くから行われた工法は、防水
下地上に孔明きルーフィング（JISA6023）を敷き、その
上からアスファルトを溶融して流し、開孔部において防
水下地と防水層であるアスファルトを接着する工法であ
る。しかし、この工法は施工現場でアスファルトを溶融
する必要があり、施工が煩雑であるとともに施工現場で
火気を扱うための危険を伴う。This insulation method is a method in which the waterproof layer and the waterproof base are not independent layers that are not integrated, and the two layers are partially adhered. Since the force released to the atmosphere and the force generated between the waterproof layer and the waterproof base can be dispersed over a large area, there is a feature that swelling and cracking of the waterproof layer can be reduced. The oldest construction method among insulation methods is to lay a perforated roofing (JISA6023) on a waterproof base, melt and flow asphalt from above, and remove the waterproof base and the waterproof layer asphalt at the opening. This is a bonding method. However, this method requires melting the asphalt at the construction site, which complicates the construction and involves the danger of handling fire at the construction site.
また、ポリエチレンフォームシートの裏面に亀甲状の
連通溝をつけ、化学繊維メッシュで補強張りした防水シ
ートをプライマーを塗布した上に固定する工法（特開昭
55−155858）が提案されている。この方法は現場で火気
を使用する必要はないが、ポリエチレンフォームシート
と下地を接着するための接着剤の塗布が必要であり、そ
の分工事の工程数が多くなり、工事費が高価になる。似
た方法として、ゴムアスファルトを、片面に多数条の連
通した凹溝を有するシートに成形した防水シート（特公
昭61−41736、特開昭59−129122）が提案されている。
このように整形されたゴム・アスファルトは接着力がな
いので前記同様接着剤の塗布工程がいる。In addition, a method of forming a tortoise-shaped communication groove on the back surface of a polyethylene foam sheet and fixing a waterproof sheet reinforced with a chemical fiber mesh after applying a primer (Japanese Patent Application Laid-Open No.
55-155858) have been proposed. This method does not require the use of fire on site, but requires the application of an adhesive for bonding the polyethylene foam sheet and the substrate, which increases the number of construction steps and increases construction costs. As a similar method, there has been proposed a waterproof sheet (Japanese Patent Publication No. 61-41736, Japanese Patent Application Laid-Open No. 59-129122) in which rubber asphalt is formed into a sheet having a plurality of continuous grooves on one side.
Since the rubber / asphalt thus shaped has no adhesive strength, there is a step of applying an adhesive as described above.
さらに、裏面に孔明きシートを積層したアスファルト
シートを表面をトーチ（火焔）により加熱・溶融せし
め、上面の防水シートと溶融接着するとともに裏面の孔
明シートの開孔部に於いて下地と接着する工法（特願昭
63−120002）も提案されている。この方法はアスファル
トシートの自己接着力を利用した方法で、接着剤を必要
としないが、トーチで加熱しないと接着力が十分に得ら
れない等の問題がある。In addition, the asphalt sheet with the perforated sheet laminated on the back side is heated and melted with a torch (flame) on the front side, melt-bonded to the waterproof sheet on the top side, and adheres to the base at the opening of the perforated sheet on the back side. (Japanese patent application
63-120002) has also been proposed. This method utilizes the self-adhesive force of the asphalt sheet, and does not require an adhesive, but has a problem such that a sufficient adhesive force cannot be obtained unless heated with a torch.
（課題を解決するための手段） 本発明者らはコンクリート建造物などの建造物の屋上
防水工法において、防水層と防水下地を部分密着により
絶縁し、下地の水分による部分的な膨らみが生ずるのを
防止するとともに下地の亀裂やムーブメントによる防水
層の破断を防ぐ絶縁工法に於いて、火気の使用を必要と
せず、また接着剤の使用も必要とせず、防水下地と直接
自己粘着力により接着（以下単に「粘着」と言う）する
ことのできる、安全でしかも施工の容易な絶縁シートお
よび工法を開発すべく鋭意研究を進めた結果本発明を完
成するに至った。(Means for Solving the Problems) In the rooftop waterproofing method for a building such as a concrete building, the present inventors insulate the waterproof layer and the waterproof base by partial adhesion, and cause partial bulging due to moisture of the base. Insulation method that prevents cracking of the underlayer and breakage of the waterproof layer due to movement, does not require the use of fire, and does not require the use of adhesives. The present invention has been completed as a result of intensive studies to develop a safe and easy-to-install insulating sheet and a construction method which can be made "adhesive".
すなわち、本発明の請求項１は、アスファルト100重
量部当りゴム10−100重量部および非揮発性の炭化水素
油10−100重量部を含む常温粘着性アスファルトシート
の裏面に所定孔径の粘着孔を設けた孔明きシートまたは
フィルムを積層し、シート接着強度0.15kgf/cm2以上と
したことを特徴とする離型紙が貼着された粘着性絶縁シ
ートである。That is, claim 1 of the present invention provides an adhesive hole having a predetermined hole diameter on the back surface of a room-temperature adhesive asphalt sheet containing 10 to 100 parts by weight of rubber and 10 to 100 parts by weight of non-volatile hydrocarbon oil per 100 parts by weight of asphalt. An adhesive insulating sheet to which release paper is adhered, wherein the perforated sheets or films provided are laminated to have a sheet adhesive strength of 0.15 kgf / cm 2 or more.
本発明の請求項２は、請求項１項記載の粘着性絶縁シ
ートにおいて、前記孔明きシートまたはフィルムが熱可
塑性樹脂からなることを特徴とする。A second aspect of the present invention is the adhesive insulating sheet according to the first aspect, wherein the perforated sheet or film is made of a thermoplastic resin.
本発明の請求項３は、アスファルト100重量部当りゴ
ム10−100重量部および非揮発性の炭化水素油10−100重
量部を含む常温粘着性アスファルトシートの裏面に所定
孔径の粘着孔を設けた孔明きシートまたはフィルムを積
層し、シート接着強度0.15kgf/cm2以上としてなる粘着
性絶縁シートを、該粘着孔を介してプライマーを塗布し
た防水下地に常温で粘着させることを特徴とする防水工
法における絶縁シートの施工方法である。Claim 3 of the present invention provides a normal temperature adhesive asphalt sheet containing 10 to 100 parts by weight of rubber and 10 to 100 parts by weight of non-volatile hydrocarbon oil per 100 parts by weight of asphalt, and has an adhesive hole having a predetermined diameter on the back surface. A waterproofing method characterized in that a perforated sheet or film is laminated, and an adhesive insulating sheet having a sheet adhesive strength of 0.15 kgf / cm 2 or more is adhered at normal temperature to a waterproof substrate coated with a primer through the adhesive hole. It is a method of applying an insulating sheet in the above.
本発明の請求項４は、請求項３記載の絶縁シートの施
工方法において、前記孔明きシートまたはフィルムが熱
可塑性樹脂からなる粘着性絶縁シートであることを特徴
とする。According to a fourth aspect of the present invention, in the method for applying an insulating sheet according to the third aspect, the perforated sheet or film is an adhesive insulating sheet made of a thermoplastic resin.
ここで使用するアスファルトはストレートアスファル
ト或はブローンアスファルトの何れも使用できるし、ゴ
ムは天然ゴム、SBR（スチレンブタジエンゴム）、ブチ
ルゴム、SBS（スチレンブタジエンスチレン熱可塑性ゴ
ム）等の合成ゴム或はこれらの再生ゴム、および架橋ま
たは加硫ゴム粉末、エチレン共重合体、アタクチックポ
リプロピレンの単独または複数として使用できる。ゴム
の配合割合はアスファルト100重量部に対し10−100重量
部が適当である。これより少ないと、接着性および接着
保持性（凝集力）が劣り、また多い場合は性能上は十分
であるが高価になり経済的に好ましくない。The asphalt used here may be either straight asphalt or blown asphalt, and the rubber may be natural rubber, synthetic rubber such as SBR (styrene butadiene rubber), butyl rubber, SBS (styrene butadiene styrene thermoplastic rubber), or a synthetic rubber thereof. It can be used alone or in combination of recycled rubber, crosslinked or vulcanized rubber powder, ethylene copolymer, and atactic polypropylene. It is appropriate that the compounding ratio of rubber is 10 to 100 parts by weight with respect to 100 parts by weight of asphalt. If the amount is less than this, the adhesiveness and the adhesive retention (cohesion) are inferior.
本発明においてはアスファルトシートに常温粘着性を
付与するために、非揮発性の炭化水素油を配合すること
が肝要である。非揮発性の炭化水素油は、アスファルト
に配合することでこれに常温粘着性が発現できるものな
らば任意のものでよい。たとえば、ポリブテン、ゴム配
合油など非揮発性の炭化水素油が一般に使用できる。配
合割合はアスファルト100重量部に対し、10−100重量部
が適当である。配合が10重量部より少ないと粘着性が不
十分であり、逆に100重量部を越えるとシートが軟弱す
ぎるためにその成形性が悪くなる。In the present invention, it is important to incorporate a non-volatile hydrocarbon oil in order to impart room-temperature tackiness to the asphalt sheet. Any non-volatile hydrocarbon oil may be used as long as it can exhibit normal-temperature adhesion to asphalt. For example, non-volatile hydrocarbon oils such as polybutene and rubber compounding oils can generally be used. The mixing ratio is suitably 10-100 parts by weight with respect to 100 parts by weight of asphalt. When the amount is less than 10 parts by weight, the adhesiveness is insufficient. On the other hand, when the amount exceeds 100 parts by weight, the sheet is too soft and the moldability deteriorates.
常温粘着性アスファルトシート（以下「粘着シート」
と略す）の裏面に積層する孔明きシートまたはフィルム
は、ポリエチレンフィルム、ポリエステルフィルムなど
の熱可塑性樹脂シートまたはポリエステル繊維製不織布
などの不織布類、あるいはこれら不織布に合成樹脂フィ
ルムを裏打ちしたもの、もしくは合成紙等が使える。こ
れらの中でも安価である、アスファルトの油分の滲出を
防止できるなどの点から熱可塑性樹脂シートまたはフィ
ルムが特に好ましく、これらのシートまたはフィルムに
20mm径乃至100mm径の円形の孔を明けたものを用いる。
以下では、特に断わらない限り孔明きシートは、孔明き
フィルムを含むものとする。Room temperature adhesive asphalt sheet (hereinafter "adhesive sheet")
Perforated sheet or film to be laminated on the back surface of thermoplastic resin sheet such as polyethylene film or polyester film or non-woven fabric such as non-woven fabric made of polyester fiber, or these non-woven fabrics lined with synthetic resin film or synthetic You can use paper etc. Among these, thermoplastic resin sheets or films are particularly preferred from the viewpoint of being inexpensive and capable of preventing the bleeding of asphalt oil, and these sheets or films are preferably used.
Use a circular hole with a diameter of 20 mm to 100 mm.
Hereinafter, unless otherwise specified, the perforated sheet includes a perforated film.
本発明の実施の態様上、この孔は円形に限定されるも
のではないが、孔明機のカットダイで最も容易に加工で
きるダイ形状は円形である点に鑑み円形の孔としたもの
で、概ね上記寸法の角孔や５角形、６角形であっても一
向に支障はなく本発明の実施の範囲から逸脱するもので
はない。According to the embodiment of the present invention, this hole is not limited to a circular shape, but the shape of the die that can be most easily processed by a cutting die of a drilling machine is a circular hole in view of the fact that the hole is circular. Even a square hole, a pentagon, or a hexagon having a dimension does not hinder the invention at all and does not depart from the scope of the present invention.
孔明きシートにおける孔径は孔明きシートの厚さによ
っても変化する。10ミクロン−30ミクロン（μｍ）のポ
リエチレンフィルムまたはポリエステルフィルムの場合
はその孔部から粘着シートが孔明きシートと同一平面を
形成するように盛り上がるのが容易なため20mm前後の孔
径で十分であるが、0.1−0.5mm程度の不織布や不織布に
裏打ちした複合材など比較的厚さの厚いものの場合には
40mm以上の大きな孔径にしないと孔部からの粘着シート
の盛り上がりが不十分となり、防水下地との接着がやや
低くなる。The hole diameter in the perforated sheet also changes depending on the thickness of the perforated sheet. For a 10 micron-30 micron (μm) polyethylene film or polyester film, a hole diameter of about 20 mm is sufficient because it is easy for the adhesive sheet to swell from the hole so as to form the same plane as the perforated sheet. In the case of relatively thick materials such as nonwoven fabric of about 0.1-0.5 mm or composite material lined with nonwoven fabric,
If the hole diameter is not larger than 40 mm, the pressure-sensitive adhesive sheet rises insufficiently from the hole, and the adhesion to the waterproof base is slightly reduced.
孔明きシートにおける開孔率も重要な要因である。こ
の場合、開孔率とは第１図に示すように孔明きシートの
孔部の最小繰り返し単位面積、Ｌ×に対する孔部面積
を意味し、第１図の孔部の半径をＲとするとき次式で算
出される。The porosity of the perforated sheet is also an important factor. In this case, the porosity means the minimum repetition unit area of the holes of the perforated sheet as shown in FIG. 1, and the area of the holes with respect to L ×, where R is the radius of the holes in FIG. It is calculated by the following equation.
本発明における孔明きシートは防水下地から発生する
水蒸気による膨出を防止し、同時に防水下地の亀裂が防
水層に直接及ぶことを防止するために用いられるもの
で、その目的からは、できるだけ、下地と接着していな
い部分、即ち絶縁部分が多い程好ましい。しかしながら
防水工法の絶縁シートとして建造物の屋上に施工され、
種々の気象条件下で10年、15年と長年月使用される用途
の面からは、できるだけ防水下地と強力に接着している
ことが好ましい。この相矛盾した特性を調和させ、膨出
防止のための集水（または集気）能力もあり且つ絶縁シ
ートとしての防水下地への接着力も十分あるように設計
する基準として、前記開孔率Ｘが重要な意味を有する。 The perforated sheet in the present invention is used to prevent swelling due to water vapor generated from the waterproof base, and at the same time, to prevent cracks of the waterproof base from directly reaching the waterproof layer. It is preferable that the number of portions not bonded to the substrate, that is, the number of insulating portions is large. However, it is installed on the roof of the building as an insulating sheet of the waterproofing method,
In terms of applications that are used for 10 years and 15 years under various weather conditions, it is preferable that the adhesive be as strongly adhered to the waterproof substrate as possible. As a criterion for harmonizing these contradictory characteristics and having a water collecting (or air collecting) ability to prevent swelling and a sufficient adhesive force to a waterproof base as an insulating sheet, the porosity X Has important significance.
一般に建造物の屋根に施工された防水層に対し、風速
により負圧が発生して、防水層を引き剥そうとする力が
働く。この力（風揚力）Ｐは次式で表される。Generally, a negative pressure is generated by a wind speed on a waterproof layer constructed on a roof of a building, and a force acts to peel the waterproof layer. This force (wind lift force) P is expressed by the following equation.
風速60m/secの場合、風力係数Ｃは平面部に於て−1.3
を見込めばよく、風揚力Ｐは Ｐ＝1/16×（−1.3）×（60）２ ＝292.5kgf/m2（約−0.03kgf/cm2） となる。絶縁シートはこの負圧条件下で防水下地に対し
て接着力が保持される必要があり、接着強度は0.03kgf/
cm2以上であれば台風などの強風下に於いても安全であ
る。 When the wind speed is 60m / sec, the wind power coefficient C is -1.3
Wind force P is P = 1/16 × (−1.3) × (60) 2 = 292.5 kgf / m 2 (about −0.03 kgf / cm 2 ). The insulation sheet must maintain an adhesive strength to the waterproof base under this negative pressure condition, and the adhesive strength is 0.03 kgf /
If it is more than cm 2 , it is safe even under strong winds such as typhoons.
本発明による絶縁シートによれば接着強度は0.15kgf/
cm2以上のものを用いるので台風などの強風下において
も剥離する恐れはない。According to the insulating sheet of the present invention, the adhesive strength is 0.15 kgf /
Since a material having a size of cm 2 or more is used, there is no possibility of peeling even under a strong wind such as a typhoon.
本発明の絶縁シートは防水シートを兼ねる事もでき
る。防水性能を更に高めるため、また引っ張り強度を高
めるため、或は表面における不必要な接着から保護する
便宜のため表面（上面）には粘着性のないゴム配合アス
ファルトシート、熱可塑性樹脂シートまたはフィルムな
どの任意のシートあるいはフィルムを積層することもで
きる。表面はさらに、塗膜防水工程におけるウレタン樹
脂等との接着性を改善する、あるいは引っ張り強度をさ
らに高めるなどの目的で不織布等を単独で、あるいは熱
可塑性樹脂シートまたはフィルム等と組み合わせて積層
することもできる。また実用上の便宜のため、裏面には
適当な離型紙を重ねて、施工時にこれを剥し防水下地に
粘着させることが適当である。The insulating sheet of the present invention can also serve as a waterproof sheet. Rubber-filled asphalt sheet, thermoplastic resin sheet or film with no tack on the surface (top surface) to further enhance waterproof performance, to increase tensile strength, or to protect from unnecessary adhesion on the surface Any sheet or film can be laminated. The surface is further laminated with a nonwoven fabric or the like alone or in combination with a thermoplastic resin sheet or film for the purpose of improving the adhesiveness with the urethane resin or the like in the coating film waterproofing process or further increasing the tensile strength. Can also. Also, for practical convenience, it is appropriate to stack an appropriate release paper on the back surface and peel it off at the time of construction to adhere to the waterproof base.
また、本発明は前記粘着性絶縁シート、即ち、アスフ
ァルト100重量部当りゴム10−100重量部および非揮発性
の炭化水素油10−100重量部を含む常温粘着性アスファ
ルトシートの裏面に所定孔径の粘着孔を設けた孔明きシ
ートまたはフィルムを積層し、シート接着強度0.15kgf/
cm2以上としてなる粘着性絶縁シートを、該粘着孔を介
してプライマーを塗布した防水下地に常温で粘着させる
ことを特徴とする防水工法における絶縁シートの施工方
法でもある。Further, the present invention provides the adhesive insulating sheet, that is, a predetermined pore size on the back surface of the room-temperature adhesive asphalt sheet containing 10 to 100 parts by weight of rubber and 10 to 100 parts by weight of non-volatile hydrocarbon oil per 100 parts by weight of asphalt. Laminate a perforated sheet or film with adhesive holes, sheet adhesive strength 0.15kgf /
The present invention also provides a method of applying an insulating sheet in a waterproofing method, wherein an adhesive insulating sheet having a size of cm 2 or more is adhered at normal temperature to a waterproof substrate coated with a primer through the adhesive hole.
本発明の施工方法に用いる粘着性絶縁シートは今まで
に説明してきた本発明の粘着性絶縁シートとまったく同
じものである。粘着性シートの裏面に積層した孔明きシ
ートも、前記同様、ポリエチレンフィルム、ポリエステ
ルフィルムなどの熱可塑性樹脂シートまたはポリエステ
ル繊維製不織布などの不織布類、あるいはこれら不織布
に合成樹脂フィルムを裏打ちしたもの、もしくは合成紙
等が使えるが、熱可塑性樹脂シートまたはフィルムが特
に好ましい。The adhesive insulating sheet used in the construction method of the present invention is exactly the same as the adhesive insulating sheet of the present invention described so far. Perforated sheet laminated on the back surface of the adhesive sheet, as described above, polyethylene film, non-woven fabrics such as polyester resin non-woven fabric or thermoplastic resin sheet such as polyester film, or those backed by synthetic resin film on these non-woven fabrics, or Synthetic paper or the like can be used, but a thermoplastic resin sheet or film is particularly preferred.
本発明の施工方法においては防水工法を施すべき建造
物の屋上等の防水下地が平滑で十分に乾燥し清掃されて
いることをまず確認し、次にアスファルト乳剤または油
剤などのプライマーをローラー、刷毛等で薄く均一に塗
布する。プライマーが乾燥した後に本発明の粘着性絶縁
シートをその孔明きシート面を下側に、離型紙を引き剥
しながら、防水下地との間に空気が入らぬように張り付
ける。その後軽くローラーを掛けて転圧すれば絶縁シー
トの張り付けを工事を終わる。接続部やコーナー部など
の施工或はまた、該粘着性絶縁シート上の防水施工等は
従来のシート防水工法、或は塗膜防水工法と何等変わる
ことはない。In the construction method of the present invention, first confirm that the waterproof base such as the roof of a building to be subjected to the waterproofing method is smooth and sufficiently dried and cleaned, and then apply a primer such as an asphalt emulsion or an oil agent to a roller or a brush. And apply it evenly. After the primer has dried, the adhesive insulating sheet of the present invention is attached with its perforated sheet surface downward, while peeling off the release paper, so that air does not enter the waterproof base material. Then, lightly roll the roller and roll it to complete the installation of the insulating sheet. The construction of the connection portion and the corner portion and the waterproof construction on the adhesive insulating sheet are not different from the conventional sheet waterproofing method or the coating film waterproofing method.
（実施例） 次に、実施例により本発明をさらに詳細に説明する。(Example) Next, the present invention will be described in more detail with reference to examples.
実施例１ 40/60ストレートアスファルト100重量部、SBS共重合
体（カリフレックスTR1102 シェル化学製）20重量部、
アタクチックポリプロピレン50重量部および高沸点の芳
香族系炭化水素油（コウモレックス700 日本石油製）5
0重量部を配合して軟化点（環球法:JISK2207）が132度
Ｃ、針入度（25度Ｃ、1/10mm、100g.5秒間、JISK2207）
が78、針入度指数（JISK2207）が10.7のアスファルト組
成物を得た。Example 1 100 parts by weight of 40/60 straight asphalt, 20 parts by weight of SBS copolymer (manufactured by Kariflex TR1102 Shell Chemicals),
50 parts by weight of atactic polypropylene and high-boiling aromatic hydrocarbon oil (COMOLEX 700 Nippon Oil) 5
A softening point (ring and ball method: JISK2207) of 132 ° C, penetration (25 ° C, 1 / 10mm, 100g for 5 seconds, JISK2207)
And an asphalt composition having a penetration index (JISK2207) of 10.7.
別に厚さ10μの高密度ポリエチレンフィルムを用意し
た。次に、ポリエステルフィルム、低密度ポリエチレン
フィルムおよびポリエステル製不織布を熱融着し、これ
に第１図の如く孔径30mmφの孔を孔中心部間隔がシート
長さ方向に100mm、幅方向に120mmの間隔で千鳥格子状に
明け、厚さ約0.1mmの３層熱融着孔明きシートを作製
し、これのポリエステルフィルム側に離型紙を重ねて、
合計４層のシート準備した。Separately, a 10 μm thick high density polyethylene film was prepared. Next, a polyester film, a low-density polyethylene film, and a polyester non-woven fabric are heat-sealed, and holes having a hole diameter of 30 mmφ are formed in the sheet as shown in FIG. A three-layer heat-sealed perforated sheet with a thickness of about 0.1 mm is made in a zigzag lattice pattern with a release paper on the polyester film side.
A total of four sheets were prepared.
これらを、第２図に示す回転ロール用い絶縁シートに
成形した。すなわち、第２図の回転ロール１、２の間に
前記高密度ポリエチレンフィルム３、および３層熱融着
孔明きシート４を不織布が内側になるように挟み、両シ
ートの間５に、前記アスファルト組成物を溶融して1.4m
m厚になるようにロール１および２の間隔を調整して流
し込み、ロールを回転してアスファルトの両面に高密度
ポリエチレンフィルムおよび３層孔明きシートを積層し
た５層積層シート（離型紙を合わせると６層）６とな
し、冷却後ロール状に巻取り絶縁シートを作製した。These were formed into insulating sheets using the rotating rolls shown in FIG. That is, the high-density polyethylene film 3 and the three-layer heat-sealed perforated sheet 4 are sandwiched between the rotating rolls 1 and 2 in FIG. 1.4m to melt the composition
The gap between the rolls 1 and 2 is adjusted so that the thickness becomes m, the roll is rotated, and the roll is rotated to laminate a high-density polyethylene film and a 3-layer perforated sheet on both sides of asphalt. After cooling, a 6-layer insulating sheet was prepared.
ここで、第１図は絶縁シートの平面図であり、Ａは上
層Ｂを一部切欠した下層の孔明きシートで、Ｈが孔であ
る。Here, FIG. 1 is a plan view of the insulating sheet, wherein A is a lower layer perforated sheet in which the upper layer B is partially cut away, and H is a hole.
このシートの開孔率を式１に従い求めると次の通りで
ある。The aperture ratio of this sheet is obtained as follows according to Equation 1.
実施例２ 防水下地として50mm×50mmで厚さ10mmのモルタル板を
用い、その上面にプライマーとしてブローンアスファル
トの40％トルエン溶液（日石プライマーＰ 日本石油化
学製）を約150g/m2の割合で塗布し、４時間乾燥後、そ
の上面に実施例１の粘着性絶縁シートを孔明きフィルム
側を下向きに離型紙を剥しながら載置してゴムローラー
で均一に押圧した後１週間放置した。１週間後、孔明き
部を中心に20mm×20mmの切れ目をいれ、JIS−Ａ−6013
案（防水ジャーナル 1988年３月号「改質アスファルト
ルーフィングJIS原案」第8.10項記載の「接着性能」）
に従う方法で接着性能を測定した。この時の値は当該シ
ートの孔明き部（粘着面）最大接着強度で、その３点測
定した平均値を第１表に記載した。実際の絶縁シートに
おいては孔明き部のみで接着が行なわれているため、絶
縁シート全体の接着強度を考える場合、開孔率補正（実
施例１のシートは11.7％）をする必要がありシート接着
強度として同じく第１表に記載した。 Example 2 A mortar board of 50 mm × 50 mm and a thickness of 10 mm was used as a waterproof substrate, and a 40% toluene solution of blown asphalt (Nisseki Primer P manufactured by Nippon Petrochemical) was used as a primer on the upper surface thereof at a rate of about 150 g / m 2 . After the coating and drying for 4 hours, the adhesive insulating sheet of Example 1 was placed on the upper surface thereof with the perforated film side facing down while releasing the release paper, pressed uniformly with a rubber roller, and then left for 1 week. One week later, make a 20mm x 20mm cut centering on the perforated area, and use JIS-A-6013
Draft ("Adhesion performance" described in Section 8.10 of the Waterproof Journal March 1988, "Modified Asphalt Roofing JIS Draft")
The adhesive performance was measured according to the following method. The value at this time is the maximum adhesive strength of the perforated portion (adhesive surface) of the sheet, and the average value measured at three points is shown in Table 1. In the actual insulating sheet, the bonding is performed only at the perforated portion. Therefore, when considering the bonding strength of the entire insulating sheet, it is necessary to correct the opening ratio (11.7% for the sheet of Example 1) and to bond the sheet. Table 1 also shows the strength.
実施例３ 厚さ0.3mmのポリエステル製不織布（目付 80g/m2東
洋紡製）に厚さ30μのポリエチレン製シートを熱融着し
て積層シートを作製した。Example 3 A 30 μm thick polyethylene sheet was heat-sealed to a 0.3 mm thick polyester nonwoven fabric (80 g / m 2 by Toyobo) to produce a laminated sheet.
別に厚さ30μ、孔径30mmφの孔を140mm間隔で千鳥格
子状にあけたポリエチレンシートを作製し、これに離型
紙を重ね合わせた。Separately, a polyethylene sheet was prepared in which holes having a thickness of 30 μm and a hole diameter of 30 mmφ were formed in a staggered pattern at intervals of 140 mm, and release paper was superimposed on the polyethylene sheet.
第２図に示すように回転ロール１および２の間に前記
孔明きポリエチレンシート（離型紙を含む）３、ポリエ
ステル不織布とポリエチレン積層シート４をそれぞれポ
リエチレンシート側を内に向けて挟み、両シートの間５
に、実施例１のアスファルト組成物を溶融して1.4mm厚
になるようにロール１および２の間隔を調整して流し込
み、ロールを回転してアスファルトの両面にポリエステ
ル製不織布とポリエチレンの積層シートおよび孔明きポ
リエチレンシートを積層した４層積層シート（離型紙を
合わせると５層）６となし、冷却後巻きとって絶縁シー
トを作製した。このシートの開孔率を式１に従い求める
と14.1％であった。As shown in FIG. 2, the perforated polyethylene sheet (including release paper) 3, the polyester non-woven fabric and the polyethylene laminated sheet 4 are sandwiched between the rotating rolls 1 and 2 with the polyethylene sheet side facing in, respectively. Interval 5
Then, the asphalt composition of Example 1 was melted and poured with the gap between the rolls 1 and 2 adjusted so as to have a thickness of 1.4 mm, and the rolls were rotated to form a laminated sheet of polyester nonwoven fabric and polyethylene on both sides of the asphalt and A four-layer laminated sheet (5 layers including release paper) 6 was formed by laminating a perforated polyethylene sheet, and after cooling, winding was performed to produce an insulating sheet. The porosity of this sheet was found to be 14.1% according to equation 1.
この絶縁シートを実施例２と同様な方法で50mm×50mm
で厚さ10mmのモルタル板に張り付け、接着強度、シート
接着強度を測定した結果を第１表に示した。This insulating sheet is 50 mm × 50 mm in the same manner as in Example 2.
Table 1 shows the results obtained by measuring the adhesive strength and the sheet adhesive strength by attaching the sheet to a mortar plate having a thickness of 10 mm.
比較例１ 高沸点の芳香族炭化水素を０部としたほかは、実施例
１同様に行い軟化点142度Ｃ、針入度57、針入度指数10.
1（測定法はいずれも実施例１と同じ）の絶縁シートを
作製し、実施例２と同様にしてその接着強度、シート接
着強度を測定した。結果はあわせて第１表に示したが、
接着力（粘着力）は上記実施例のそれよりも劣るもので
あった。Comparative Example 1 A softening point of 142 ° C., a penetration of 57, and a penetration index of 10. were obtained in the same manner as in Example 1 except that the high-boiling aromatic hydrocarbon was changed to 0 parts.
An insulating sheet of 1 (all measurement methods were the same as in Example 1) was prepared, and its adhesive strength and sheet adhesive strength were measured in the same manner as in Example 2. The results are shown in Table 1.
The adhesive strength (adhesive strength) was inferior to that of the above example.
（発明の効果） 本発明の絶縁シートによれば、非揮発性の炭化水素油
を含むアスファルト組成物を用いることによりアスファ
ルトシートが十分なる常温粘着性を有しているので、単
に防水下地に粘着させることにより簡単に施工ができ
る。 (Effect of the Invention) According to the insulating sheet of the present invention, since the asphalt sheet has sufficient room-temperature adhesiveness by using an asphalt composition containing a non-volatile hydrocarbon oil, it can simply adhere to the waterproof base material. By doing so, construction can be done easily.
第１図は本発明の絶縁シートの平面図である。第２図は
実施例３に示した絶縁シートの製造方法である。FIG. 1 is a plan view of the insulating sheet of the present invention. FIG. 2 shows a method of manufacturing the insulating sheet shown in the third embodiment.
フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) C09J 7/02 - 7/04 C09J 195/00 C09J 121/00 E04D 5/10 - 5/12 ＷＰＩ／Ｌ（ＱＵＥＳＴＥＬ)Continuation of the front page (58) Field surveyed (Int. Cl. 6 , DB name) C09J 7/02-7/04 C09J 195/00 C09J 121/00 E04D 5/10-5/12 WPI / L (QUESTEL)
Claims (4)
量部および非揮発性の炭化水素油10−100重量部を含む
常温粘着性アスファルトシートの裏面に所定孔径の粘着
孔を設けた孔明きシートまたはフィルムを積層し、シー
ト接着強度0.15kgf/cm2以上としたことを特徴とする離
型紙が貼着された粘着性絶縁シート。1. A perforated sheet comprising a normal temperature adhesive asphalt sheet containing 10 to 100 parts by weight of rubber and 10 to 100 parts by weight of a non-volatile hydrocarbon oil per 100 parts by weight of asphalt and having an adhesive hole having a predetermined diameter on the back surface thereof. Alternatively, an adhesive insulating sheet on which release paper is adhered, wherein a film is laminated and the sheet adhesive strength is 0.15 kgf / cm 2 or more.
性樹脂からなる請求項１項記載の粘着性絶縁シート。2. The adhesive insulating sheet according to claim 1, wherein said perforated sheet or film is made of a thermoplastic resin.
量部および非揮発性の炭化水素油10−100重量部を含む
常温粘着性アスファルトシートの裏面に所定孔径の粘着
孔を設けた孔明きシートまたはフィルムを積層し、シー
ト接着強度0.15kgf/cm2以上としてなる粘着性絶縁シー
トを、該粘着孔を介してプライマーを塗布した防水下地
に常温で粘着させることを特徴とする防水工法における
絶縁シートの施工方法。3. A perforated sheet comprising a normal temperature adhesive asphalt sheet containing 10 to 100 parts by weight of rubber and 10 to 100 parts by weight of a non-volatile hydrocarbon oil per 100 parts by weight of asphalt and having an adhesive hole having a predetermined diameter on the back surface thereof. Or a laminated film, an adhesive insulating sheet having a sheet adhesive strength of 0.15 kgf / cm 2 or more, an insulating sheet in a waterproofing method characterized by being adhered at normal temperature to a waterproof substrate coated with a primer through the adhesive hole. Construction method.
性樹脂からなる粘着性絶縁シートであることを特徴とす
る請求項３記載の絶縁シートの施工方法。4. The method according to claim 3, wherein the perforated sheet or film is an adhesive insulating sheet made of a thermoplastic resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1207338A JP2978509B2 (en) | 1989-08-10 | 1989-08-10 | Adhesive insulating sheet and insulating sheet using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1207338A JP2978509B2 (en) | 1989-08-10 | 1989-08-10 | Adhesive insulating sheet and insulating sheet using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0370786A JPH0370786A (en) | 1991-03-26 |
| JP2978509B2 true JP2978509B2 (en) | 1999-11-15 |
Family
ID=16538092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1207338A Expired - Fee Related JP2978509B2 (en) | 1989-08-10 | 1989-08-10 | Adhesive insulating sheet and insulating sheet using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2978509B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106398642A (en) * | 2016-08-26 | 2017-02-15 | 广西青龙化学建材有限公司 | High viscosity non-asphalt base self-adhesive glue for waterproof coiled materials and preparation method thereof |
| CN107964378A (en) * | 2017-12-12 | 2018-04-27 | 四川杨氏达防水材料有限公司 | One kind is embedding to determine cohesion adhesion type polymer membranes and preparation method thereof |
-
1989
- 1989-08-10 JP JP1207338A patent/JP2978509B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0370786A (en) | 1991-03-26 |
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