JP2007138543A - Waterproof sheet and lining waterproof construction method - Google Patents

Waterproof sheet and lining waterproof construction method Download PDF

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JP2007138543A
JP2007138543A JP2005333496A JP2005333496A JP2007138543A JP 2007138543 A JP2007138543 A JP 2007138543A JP 2005333496 A JP2005333496 A JP 2005333496A JP 2005333496 A JP2005333496 A JP 2005333496A JP 2007138543 A JP2007138543 A JP 2007138543A
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modified asphalt
layer
asphalt layer
waterproof
waterproof sheet
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Taiichi Sugimoto
本 泰 一 杉
Shingo Kamiya
谷 慎 吾 神
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Shizuoka Rekisei Kogyo Co Ltd
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Shizuoka Rekisei Kogyo Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a lining waterproof construction method preventing dew condensation and simplifying construction. <P>SOLUTION: In the lining waterproof construction method, a waterproof sheet 1 comprises a base material 10, a modified asphalt layer 11 stuck to one face of the base material 10 and formed with a plurality of unlevel parts of the modified asphalt layer 11 on the face, opposite to the face of the base material 10, of the modified asphalt layer 11, and a nonwoven fabric layer 12 stuck to the modified asphalt layer 11 and stuck along the unlevel parts of the modified asphalt layer 11 to form a rugged face. The waterproof sheet 1 is rolled so that the nonwoven fabric layer 12 is on the surface side. The rolled waterproof sheet 1 is unrolled and stuck through a binder 3 to backing 2 to which waterproof construction of the nonwoven fabric layer 12 is to be performed. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、防水シート及び下張り防水施工方法に係り、特に、施工が簡単な防水シート及び下張り防水施工方法に関する。     The present invention relates to a waterproof sheet and an underwater waterproof construction method, and more particularly, to a waterproof sheet and an underwater waterproof construction method that are easy to construct.

本件出願人は、先に、基材と、この基材の一方の面に付着した改質アスファルトの層と、前記改質アスファルトの層の前記基材の面と反対の面に複数の凹凸部が形成されると共に、前記複数の凹凸部の内の複数の凹部は互いに連通し、前記複数の凹凸部の内の凸部には、粘着材が塗布され、この粘着材に付着した離型シ−トとを備えた防水シ−トであって、この防水シ−トの前記離型シ−トを剥して防水施工をしようとする下地に前記粘着材を介して前記防水シ−トを付着させる下張り防水施工方法を提案した。
特願２００４−２２３２４６ The applicant of the present application previously has a base material, a modified asphalt layer attached to one surface of the base material, and a plurality of irregularities on the surface of the modified asphalt layer opposite to the surface of the base material. And a plurality of recesses in the plurality of concavo-convex portions communicate with each other, and an adhesive material is applied to the convex portions in the plurality of concavo-convex portions, and the release sheet adhered to the adhesive material. A waterproof sheet provided with a sheet, and the waterproof sheet is attached to a base to be waterproofed by peeling off the release sheet of the waterproof sheet via the adhesive material. The underwater waterproof construction method was proposed.
Japanese Patent Application No. 2004-223246

しかしながら、上記の防水シ−トにあっては、作業現場において、離型シ−トを剥がす作業が伴うと共に、剥がした離型シ−トを処理しなければならず施工が面倒であるという問題点が生じた。
本発明は、上記問題点を除去するようにした防水シート及び下張り防水施工方法を提供するものである。 However, in the above waterproof sheet, there is a problem that the work to remove the release sheet is accompanied at the work site, and the removed release sheet has to be processed, and the construction is troublesome. A point occurred.
The present invention provides a waterproof sheet and an underwater waterproof construction method in which the above problems are eliminated.

上記目的を達成するために、請求項１記載の下張り防水施工方法は、基材と、この基材の一方の面に付着した改質アスファルトの層と、前記改質アスファルトの層の前記基材の面と反対の面に複数の改質アスファルトの層の凹凸部が形成され、前記改質アスファルトの層に付着し、前記改質アスファルトの層の凹凸部に沿って付着して凹凸面が形成される不織布の層とを備え、前記不織布の層が表側になるように巻回された防水シートであって、この巻回された防水シートを解いて前記不織布の層を防水施工をしようとする下地に接着材を介して前記防水シ−トを付着させるものである。     In order to achieve the above object, the underwater waterproofing construction method according to claim 1 includes a base material, a modified asphalt layer attached to one surface of the base material, and the base material of the modified asphalt layer. A plurality of modified asphalt layer irregularities are formed on the surface opposite to the surface of the modified asphalt, adhere to the modified asphalt layer, and adhere along the irregularities of the modified asphalt layer to form an irregular surface. A waterproof sheet wound with the nonwoven fabric layer facing forward, and is intended to waterproof the nonwoven fabric layer by unwinding the wound waterproof sheet. The waterproof sheet is attached to the base via an adhesive.

また、請求項２記載の防水シートは、基材と、この基材の一方の面に付着した改質アスファルトの層と、前記改質アスファルトの層の前記基材の面と反対の面に複数の改質アスファルトの層の凹凸部が形成され、前記改質アスファルトの層に付着し、前記改質アスファルトの層の凹凸部に沿って付着して凹凸面が形成される不織布の層と、この不織布の層が表側になるように巻回され、この巻回されている状態を保持する保持手段を備えているものである。     The waterproof sheet according to claim 2 includes a base material, a modified asphalt layer attached to one surface of the base material, and a plurality of the modified asphalt layer on a surface opposite to the surface of the base material. An uneven portion of the modified asphalt layer is formed, adheres to the modified asphalt layer, and adheres along the uneven portion of the modified asphalt layer to form an uneven surface, and this The nonwoven fabric layer is wound so as to be on the front side, and holding means for holding this wound state is provided.

請求項１記載の下張り防水施工方法によれば、不織布の層が表側になるように巻回された防水シートであるため、従来のような離型シ−トを使用しなくても、改質アスファルトの層と基材とが付着するのを防ぎ、巻回された防水シートを解いて不織布の層をそのまま防水施工をしようとする下地に位置させることができ、しかも、改質アスファルトの層は不織布の層で覆われているため、施工現場で改質アスファルトが露出していないため、結露を防いで、防水施工に支障を来すことを防止し、更に、従来のような離型シ−トを使用しないため、離型シ−トを剥がす作業及び剥がした離型シ−トの廃棄作業をも不要となり、下張り防水施工が簡単となる。     According to the underlayer waterproofing construction method of claim 1, since the waterproof sheet is wound so that the nonwoven fabric layer is on the front side, the modification can be performed without using a conventional release sheet. The asphalt layer and the base material are prevented from adhering, the wound waterproof sheet is unwound, and the non-woven fabric layer can be positioned as a base for waterproofing, and the modified asphalt layer is Since it is covered with a non-woven fabric layer, the modified asphalt is not exposed at the construction site, preventing condensation and preventing hindering waterproof construction. Since no sheet is used, the work for peeling the release sheet and the disposal work for the removed release sheet are not required, and the waterproof waterproof construction is simplified.

請求項２記載の防水シートによれば、不織布の層が表側になるように巻回された防水シートであるため、従来のような離型シ−トを使用しなくても、改質アスファルトの層と基材とが付着するのを防ぎ、巻回された防水シートを解いて不織布の層をそのまま防水施工をしようとする下地に位置させることができ、しかも、改質アスファルトの層は不織布の層で覆われているため、施工現場で改質アスファルトが露出していないため、結露を防いで、防水施工に支障を来すことを防止し、更に、従来のような離型シ−トを使用しないため、離型シ−トを剥がす作業及び剥がした離型シ−トの廃棄作業をも不要となり、防水施工が簡単となる。     According to the waterproof sheet of claim 2, since the waterproof sheet is wound so that the nonwoven fabric layer is on the front side, the modified asphalt can be formed without using a conventional release sheet. The layer and the base material can be prevented from adhering, the wound waterproof sheet can be unwound and the nonwoven fabric layer can be placed on the base for waterproofing as it is, and the modified asphalt layer is made of a nonwoven fabric. Because it is covered with layers, the modified asphalt is not exposed at the construction site, preventing condensation and preventing hindering waterproof construction. Since it is not used, the work of peeling off the release sheet and the disposal work of the peeled release sheet become unnecessary, and the waterproof construction is simplified.

本発明の一実施例の下張り防水施工方法を図面を参照して説明する。
図１乃至図５において、１は防水シ−トで、防水シ−ト１は、基材１０と、この基材１０の一方の面に付着した改質アスファルトの層１１と、改質アスファルトの層１１の基材１０の面と反対の面（施工面である下地２に接触する面）に複数の改質アスファルトの層１１の凹凸部１１ａ、１１ｂが形成され、また、改質アスファルトの層１１に付着し、改質アスファルト１１の層１１の凹凸部１１ａ、１１ｂに沿って付着して凹凸面が形成される不織布の層１２と、この不織布の層１２が表側になるように巻回され、この巻回されている状態を保持する保持手段１３とを備えている。
なお、保持手段１３は、例えば、図１に示すように巻回されて円柱状に形成された防水シ−ト１の外周に付着する接着テープであり、この接着テープに代えて、円柱状に形成された防水シ−ト１全体を覆う包装紙（図示せず）でも、また、輪状のゴムバンド（図示せず）でも良い。 An underlay waterproof construction method according to an embodiment of the present invention will be described with reference to the drawings.
1 to 5, reference numeral 1 denotes a waterproof sheet. The waterproof sheet 1 includes a base material 10, a modified asphalt layer 11 attached to one surface of the base material 10, and a modified asphalt layer. A plurality of irregularities 11a and 11b of the modified asphalt layer 11 are formed on the surface of the layer 11 opposite to the surface of the base material 10 (the surface in contact with the base 2 that is the construction surface), and the modified asphalt layer 11, the nonwoven fabric layer 12 that is attached along the concavo-convex portions 11 a and 11 b of the modified asphalt 11 layer 11 to form a concavo-convex surface, and the nonwoven fabric layer 12 is wound so as to be on the front side. And holding means 13 for holding the wound state.
The holding means 13 is, for example, an adhesive tape that adheres to the outer periphery of the waterproof sheet 1 that is wound and formed into a columnar shape as shown in FIG. 1. It may be a wrapping paper (not shown) that covers the entire formed waterproof sheet 1 or a ring-shaped rubber band (not shown).

基材１０は、例えば、合成樹脂フィルム（例えば、ＰＥＴフィルム）、不織布（例えば、ポリエステル繊維）とガラスメッシュを組み合わせたもの、合成樹脂フィルム（例えば、ＰＥＴフィルム）とガラスメッシュを組み合わせたもの、不織布（例えば、ポリエステル繊維）、ガラスメッシュ、合成樹脂フィルム（例えば、ＰＥＴフィルム）を組み合わせたものである。     The base material 10 is, for example, a synthetic resin film (for example, PET film), a combination of a nonwoven fabric (for example, polyester fiber) and a glass mesh, a combination of a synthetic resin film (for example, PET film) and a glass mesh, or a nonwoven fabric. (For example, polyester fiber), glass mesh, and synthetic resin film (for example, PET film) are combined.

また、改質アスファルトの層１１の改質アスファルトは、合成ゴムあるいは合成樹脂を加えてアスファルトの性質を改良したもので、本実施例にあっては、特に、ブロ−ンとワックスを混入した改質アスファルトが良い。改質アスファルトの層１１は、エンボス加工（表面に機械的方法によって凹凸模様を着けること）が施されている。
即ち、改質アスファルトの層１１の複数の凹凸部１１ａ、１１ｂは、例えば、図４に示すような菱形のエンボスパタ−ンに形成されている。
なお、菱形のエンボスパタ−ンは、ストレ−トのものに比し、通気性を確保しながら
、しかも、接着強度を向上させ、耐風圧に耐えることができる。
また、層１１の複数の凹凸部１１ａ、１１ｂは、図４に示す形状に限らず、例えば、
円形、長方形、円形と長方形を組み合わせたものと種々ある。 Further, the modified asphalt of the modified asphalt layer 11 is obtained by adding synthetic rubber or synthetic resin to improve the properties of the asphalt. In this embodiment, in particular, the modified asphalt mixed with bronze and wax is used. Good quality asphalt. The modified asphalt layer 11 is embossed (the surface is provided with a concavo-convex pattern by a mechanical method).
That is, the plurality of uneven portions 11a and 11b of the modified asphalt layer 11 are formed in, for example, a diamond-shaped emboss pattern as shown in FIG.
Note that the diamond-shaped emboss pattern is more breathable than that of the straight type, and can improve the adhesive strength and withstand wind pressure resistance.
Further, the plurality of uneven portions 11a and 11b of the layer 11 are not limited to the shape shown in FIG.
There are various types such as a circle, a rectangle, and a combination of a circle and a rectangle.

不織布の層１２は、例えば、ポリエチレン繊維を使用して、５〜２０ｇ／ｍ2 程度の不織布で構成され、改質アスファルトの層１１に付着し、改質アスファルトの層１１の凹凸部１１ａ、１１ｂに沿って付着して凹凸面が形成される。そして、不織布の層１２の複数の凹凸面の内の複数の凹面１２ａは互いに連通して通気溝を形成し、下地から発生する水蒸気を逃がす通路となる。 The nonwoven fabric layer 12 is made of a nonwoven fabric of about 5 to 20 g / m 2 using, for example, polyethylene fiber, adheres to the modified asphalt layer 11, and the uneven portions 11 a and 11 b of the modified asphalt layer 11. An uneven surface is formed by adhering along. The plurality of concave surfaces 12a among the plurality of concave and convex surfaces of the nonwoven fabric layer 12 communicate with each other to form a ventilation groove, and serve as a passage through which water vapor generated from the base is released.

従って、巻回された防水シート１を解いて不織布の層１２を防水施工をしようとする下地２に予め塗られていた接着材３を介して防水シ−ト１を付着させて下張り防水施工を行うことができる（図５参照）。
この実施例によれば、不織布の層１１が表側になるように巻回された防水シート１であるため、従来のような離型シ−トを使用しなくても、改質アスファルトの層１１と基材１０とが付着するのを防ぎ、巻回された防水シート１を解いて不織布の層１１をそのまま防水施工をしようとする下地２に面するように位置させることができ、しかも、改質アスファルトの層１１は不織布の層１２で覆われているため、施工現場で改質アスファルトの層１１が露出していないため、結露を防いで、防水施工に支障を来すことを防止し、更に、従来のような離型シ−トを使用しないため、離型シ−トを剥がす作業及び剥がした離型シ−トの廃棄作業をも不要となり、下張り防水施工が簡単となる。なお、下地２から発生する水蒸気は、凹面１２ａを通って、凹面１２ａに連通する図示しない脱気筒より排出される。 Accordingly, the waterproof sheet 1 is unwound and the waterproof sheet 1 is adhered to the base 2 on which the nonwoven fabric layer 12 is to be waterproofed by applying the waterproof sheet 1 to the base 2 to be waterproofed. (See FIG. 5).
According to this embodiment, since the waterproof sheet 1 is wound so that the nonwoven fabric layer 11 is on the front side, the modified asphalt layer 11 can be used without using a conventional release sheet. And the base material 10 are prevented from adhering, the wound waterproof sheet 1 is unwound, and the nonwoven fabric layer 11 can be positioned so as to face the base 2 to be waterproofed. Since the quality asphalt layer 11 is covered with the nonwoven fabric layer 12, the modified asphalt layer 11 is not exposed at the construction site, thus preventing condensation and preventing the waterproof construction from being hindered. Further, since a conventional release sheet is not used, the work of peeling the release sheet and the disposal work of the peeled release sheet become unnecessary, and the underwater waterproofing construction is simplified. The water vapor generated from the base 2 passes through the concave surface 12a and is discharged from a cylinder not shown which communicates with the concave surface 12a.

また、下地２に防水シ−ト１を付着させて下張り防水施工を行った後、基材１０の上に塗膜を形成したり（塗膜防水）、アスファルトのシ−トを張って（アスファルト防水）、防水性を確保するようにしている。     After the waterproof sheet 1 is attached to the base 2 and waterproofing is performed under the base, a coating film is formed on the base material 10 (coating film waterproofing), or an asphalt sheet is stretched (asphalt). Waterproof), to ensure waterproofness.

図１は、本発明の一実施例の防水シ−トの概略的斜視図である。FIG. 1 is a schematic perspective view of a waterproof sheet according to an embodiment of the present invention. 図２は、図１の巻回された防水シートを解いた状態の概略的斜視図である。FIG. 2 is a schematic perspective view of the wound waterproof sheet of FIG. 図３は、図２の３−３線による概略的断面図である。3 is a schematic cross-sectional view taken along line 3-3 of FIG. 図４は、図３の防水シ−トを裏面側から見た状態の概略的図である。FIG. 4 is a schematic view of the waterproof sheet of FIG. 3 as viewed from the back side. 図５は、図３の防水シ−トを防水施工をしようとする下地に付着させた状態の概略的断面図である。FIG. 5 is a schematic cross-sectional view showing a state in which the waterproof sheet of FIG. 3 is attached to a base to be waterproofed.

符号の説明Explanation of symbols

１ ・・・・・防水シ−ト
２ ・・・・・下地
３ ・・・・・接着材
１０ ・・・・・基材
１１ ・・・・・改質アスファルトの層
１２ ・・・・・不織布の層 DESCRIPTION OF SYMBOLS 1 ... Waterproof sheet 2 ... Base 3 ... Adhesive 10 ... Base material 11 ... Modified asphalt layer 12 ... Nonwoven layer

Claims (2)

基材と、この基材の一方の面に付着した改質アスファルトの層と、前記改質アスファ
ルトの層の前記基材の面と反対の面に複数の改質アスファルトの層の凹凸部が形成され、
前記改質アスファルトの層に付着し、前記改質アスファルトの層の凹凸部に沿って付着して凹凸面が形成される不織布の層とを備え、前記不織布の層が表側になるように巻回された防水シートであって、
この巻回された防水シートを解いて前記不織布の層を防水施工をしようとする下地に接着材を介して前記防水シ−トを付着させる
ことを特徴とする下張り防水施工方法。 A substrate, a modified asphalt layer attached to one surface of the substrate, and a plurality of modified asphalt layer irregularities formed on the surface of the modified asphalt layer opposite to the substrate surface And
A non-woven fabric layer that adheres to the modified asphalt layer and adheres along the concavo-convex portion of the modified asphalt layer to form a concavo-convex surface, and is wound so that the non-woven fabric layer is on the front side Waterproof tarpaulin,
An underwater waterproof construction method, comprising: unwinding the wound waterproof sheet and adhering the waterproof sheet through an adhesive to a base on which the nonwoven fabric layer is to be waterproofed. 基材と、この基材の一方の面に付着した改質アスファルトの層と、前記改質アスファ
ルトの層の前記基材の面と反対の面に複数の改質アスファルトの層の凹凸部が形成され、
前記改質アスファルトの層に付着し、前記改質アスファルトの層の凹凸部に沿って付着して凹凸面が形成される不織布の層と、この不織布の層が表側になるように巻回され、この巻回されている状態を保持する保持手段を備えている
ことを特徴とする防水シート。 A substrate, a modified asphalt layer attached to one surface of the substrate, and a plurality of modified asphalt layer irregularities formed on the surface of the modified asphalt layer opposite to the substrate surface And
Attached to the modified asphalt layer, the nonwoven fabric layer that is attached along the concavo-convex portion of the modified asphalt layer to form a concavo-convex surface, and wound so that the nonwoven fabric layer is on the front side, A waterproof sheet comprising a holding means for holding the wound state.
JP2005333496A 2005-11-18 2005-11-18 Waterproof sheet and lining waterproof construction method Pending JP2007138543A (en)

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KR101117164B1 (en) 2011-11-07 2012-03-07 (주)환일 Waterproof sheet imbedded with glass fiber mesh and manufacturing method thereof
JP2012211462A (en) * 2011-03-31 2012-11-01 S.B. Sheet Waterproof System Co Ltd Panel for waterproof construction, structure, and sheet construction method

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JPS61137638A (en) * 1984-12-07 1986-06-25 Agency Of Ind Science & Technol Die forging device
JP2001200620A (en) * 1999-11-09 2001-07-27 Nisshin Kogyo Co Ltd Waterproof sheet for under roofing
JP2001295429A (en) * 2000-04-13 2001-10-26 Tajima Kaken Kk Roof lining

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012211462A (en) * 2011-03-31 2012-11-01 S.B. Sheet Waterproof System Co Ltd Panel for waterproof construction, structure, and sheet construction method
KR101117164B1 (en) 2011-11-07 2012-03-07 (주)환일 Waterproof sheet imbedded with glass fiber mesh and manufacturing method thereof

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