JPS63266272A - Water-proof working method - Google Patents
Water-proof working methodInfo
- Publication number
- JPS63266272A JPS63266272A JP62094680A JP9468087A JPS63266272A JP S63266272 A JPS63266272 A JP S63266272A JP 62094680 A JP62094680 A JP 62094680A JP 9468087 A JP9468087 A JP 9468087A JP S63266272 A JPS63266272 A JP S63266272A
- Authority
- JP
- Japan
- Prior art keywords
- water
- sealing material
- swellable
- gap
- absorbing
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000003566 sealing material Substances 0.000 claims abstract description 19
- 229920005989 resin Polymers 0.000 claims abstract description 12
- 239000011347 resin Substances 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims description 10
- 238000004078 waterproofing Methods 0.000 claims description 9
- 239000006260 foam Substances 0.000 claims description 8
- 239000006261 foam material Substances 0.000 claims description 5
- 230000008961 swelling Effects 0.000 abstract 3
- 238000007789 sealing Methods 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 5
- 229920002635 polyurethane Polymers 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 4
- 239000000565 sealant Substances 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 3
- 239000005060 rubber Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 2
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- PYSRRFNXTXNWCD-UHFFFAOYSA-N 3-(2-phenylethenyl)furan-2,5-dione Chemical compound O=C1OC(=O)C(C=CC=2C=CC=CC=2)=C1 PYSRRFNXTXNWCD-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 229920001730 Moisture cure polyurethane Polymers 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 229920000147 Styrene maleic anhydride Polymers 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000011396 hydraulic cement Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、管のジヨイントやコンクリート構造物の間隙
を止水する防水工法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a waterproofing method for watertighting pipe joints and gaps in concrete structures.
〔従来の技術及び発明が解決しようとする問題点〕従来
より、管のジヨイントやボンクリート構造物の間隙を止
水するため、水膨潤性シール材が使用されている。この
水膨潤性シール材は、水と接触した場合に膨張して間隙
を塞ぐ機能を有するもので止水性が良いが、水の少ない
ところでは膨張が不充分で止水性が患いという問題点が
°あった。[Prior Art and Problems to be Solved by the Invention] Water-swellable sealants have been used to seal off water in pipe joints and gaps in bone cleat structures. This water-swellable sealant has the ability to expand and close gaps when it comes into contact with water, and has good water-stopping properties, but the problem is that it does not expand sufficiently in areas with little water, resulting in poor water-stopping properties. there were.
本発明は、上記問題点を解消するもので、水が少なかっ
たり、外部から水が来なくても良好な止水性が得られる
防水工法を提供するものである。The present invention solves the above-mentioned problems and provides a waterproofing method that provides good water-stopping properties even when there is little water or no water comes from outside.
即ち、本発明の防水工法は、吸水性フオーム状物質を組
み入れた水膨潤性シール材を、吸水性フオーム状物質に
水を含浸させて止水すべき間隙にセットすることを特徴
とするものである。That is, the waterproofing method of the present invention is characterized in that a water-swellable sealing material incorporating a water-absorbing foam material is set in a gap where water is to be stopped by impregnating the water-absorbing foam material with water. be.
以下、本発明の防水工法について詳述する。The waterproofing method of the present invention will be explained in detail below.
本発明に通用される水膨潤性シール材としては、水膨潤
性ポリウレタン含有可撓性物質製シール材が好適であり
、上記の水膨潤性ポリウレタン含有可撓性物質は、水膨
潤性ポリウレタン樹脂、ゴム類、及び好ましくは水硬性
物質からなるものである。As the water-swellable sealing material used in the present invention, a sealing material made of a water-swellable polyurethane-containing flexible material is suitable, and the above-mentioned water-swellable polyurethane-containing flexible material is a water-swellable polyurethane resin, It consists of rubbers and preferably hydraulic substances.
上記水膨潤性ポリウレタン含有可撓性物質について詳述
すると、上記水膨潤性ポリウレタン暑Ｈ脂は、末端イソ
シアネート基含有水膨潤性ポリウレタンブレポリマーと
、水及び／又は硬化剤との反応によって得られる樹脂で
ある。末端イソシアネート基含有水膨潤性ポリウレタン
プレポリマーは、例えば水酸基当量が４００〜６０００
であるエチレンオキサイド・プロピレンオキサイド重合
ポリオキシアルキレングリコール（ランダム及び／又は
ブロック）に、適切な有機ポリイソシアネートを反応せ
しめて製造することができる。エチレンオキサイド／プ
ロピレンオキサイド含量の割合は、３７７〜１０１０が
好ましい。硬化剤としては、４．４°−メチレン−ビス
−２−クロロアニリン、１．４−ブタンジオールなどが
使用でき、また、水と硬化剤を併用しても良い。In detail, the water-swellable polyurethane-containing flexible material is a resin obtained by reacting a water-swellable polyurethane polymer containing terminal isocyanate groups with water and/or a curing agent. It is. The water-swellable polyurethane prepolymer containing terminal isocyanate groups has, for example, a hydroxyl equivalent of 400 to 6,000.
It can be produced by reacting ethylene oxide/propylene oxide polymerized polyoxyalkylene glycol (random and/or block) with an appropriate organic polyisocyanate. The ratio of ethylene oxide/propylene oxide content is preferably 377 to 1010. As the curing agent, 4.4°-methylene-bis-2-chloroaniline, 1.4-butanediol, etc. can be used, and water and the curing agent may be used in combination.
上記ゴム類としては、天然ゴム、合成ゴム、もしくは再
生ゴムなどがあり、用途や目的によって適宜選択される
。The above-mentioned rubbers include natural rubber, synthetic rubber, recycled rubber, etc., and are appropriately selected depending on the use and purpose.
上記水硬性物質としては、水硬性セメント、石膏などが
好ましく、これを併用することにより、一旦水膨張する
と、後で収縮しにくい水膨潤性シール材が得られる。The above-mentioned hydraulic substance is preferably hydraulic cement, gypsum, etc. By using these in combination, a water-swellable sealing material that is difficult to shrink later after expanding with water can be obtained.
上記水膨潤性シール材に組み入れる吸水性フオーム状物
質としては、吸水性樹脂からなるフオームが好ましく、
かかる吸水性樹脂としては、デンプン−アクリル酸グラ
フト共重合体、スチレン−無水マレイン酸共重合体、ポ
リアクリル酸ソーダ架橋物などの高分子体や軟質ポリウ
レタンフォームなどが挙げられる。The water-absorbing foam substance incorporated into the water-swellable sealing material is preferably a foam made of a water-absorbing resin,
Examples of such water-absorbing resins include polymers such as starch-acrylic acid graft copolymers, styrene-maleic anhydride copolymers, cross-linked sodium polyacrylates, and flexible polyurethane foams.
上記水膨潤性シール材は、通常長尺のテープ状のものが
使用しやすく好適であるが、形状は■定されるものでは
なく、使用目的に合わせて適当な形状に成形することが
できる。The above-mentioned water-swellable sealing material is usually preferably in the form of a long tape because it is easy to use, but the shape is not limited and can be formed into a suitable shape depending on the purpose of use.
上記水膨潤性シール材への上記吸水性樹脂製フオームの
組み入れ態様には特に制限はないが、止水すべき間隙を
形成する管壁などの間隙形成体の端面（管壁）等に、吸
水性フオーム状物質の少なくとも一部が接触するような
形態で水膨潤性シール材に組み入れることが好ましく、
例えば、第４図（イ）〜（ル）に示すように組み入れる
ことができる。このうち、（ホ）のように、水膨潤性シ
ール材３を、水を含浸させた吸水性樹脂製フオーム４．
４′ でサンドインチ状に挾んで３ｉｉ１構造にしたも
のは、その各層が、例えば間隙を形成する管壁に接する
ようにセントすれば水膨潤性シール材３の膨張方向が直
接管壁にかかるので止水性が良く、とりわけ好ましい。There are no particular restrictions on the manner in which the water-absorbing resin foam is incorporated into the water-swellable sealing material, but water absorption It is preferable to incorporate it into the water-swellable sealing material in such a form that at least a portion of the water-swellable foam material comes into contact with it.
For example, it can be incorporated as shown in FIGS. 4(a) to 4(l). Among these, as shown in (e), the water-swellable sealing material 3 is made of water-absorbing resin foam 4 impregnated with water.
4' sandwiched in a sandwich-like manner to form a 3ii1 structure, if each layer is placed in contact with the pipe wall forming a gap, the direction of expansion of the water-swellable sealing material 3 will be applied directly to the pipe wall. It has good water stopping properties and is particularly preferred.
以下、本発明の防水加工法を、その具体的な実施例につ
いて説明する。Hereinafter, the waterproofing method of the present invention will be described with reference to specific examples thereof.
実施例１
第１図に示すように、管１．１°の間ＦＪｉ２に、テー
プ状水膨潤性シール材３を、その吸水性樹脂製フオーム
４．４°を管壁１． １’ に接触させてセットした。Example 1 As shown in FIG. 1, a tape-shaped water-swellable sealing material 3 is applied to the pipe FJi 2 at an angle of 1.1°, and its water-absorbing resin foam is attached at an angle of 4.4° to the pipe wall 1. 1' and set it.
その際、セントに先立って吸水性樹脂製フオーム４．４
°には水を含浸させた。その結果、上記の水の作用で水
膨潤性シール材３は膨張して間隙２を完全に塞ぎ、短時
間で止水が可滝となった。At that time, water absorbent resin foam 4.4
° was impregnated with water. As a result, the water-swellable sealing material 3 expanded under the action of the water, completely closing the gap 2, and was able to stop water in a short time.
実施例２
本実施例は、管内部から水圧がかかる場合の例で、第２
図に示すように、管内部からの水圧に耐えるようにする
ために、水膨潤性シール材３の外側にストッパー５を装
着し、それ以外は実施例１と同様にして施工を行った。Example 2 This example is an example where water pressure is applied from inside the pipe.
As shown in the figure, a stopper 5 was attached to the outside of the water-swellable sealing material 3 in order to withstand water pressure from inside the pipe, but construction was carried out in the same manner as in Example 1 except for this.
その結果、実施例１と同様に、止水が図れた。As a result, water was stopped as in Example 1.
実施例３
実施例１と同様にして、吸水性樹脂製フオーム４．４°
を組み入れた水膨潤性シール材３を間隙２にセットした
後、第３図に示すように、さらにバックアツプ材６及び
目地材７を設けた。Example 3 In the same manner as in Example 1, a water-absorbing resin foam of 4.4°
After the water-swellable sealing material 3 incorporating the water-swelling material 3 was set in the gap 2, a back-up material 6 and a joint material 7 were further provided as shown in FIG.
本発明の防水工法によれば、従来の水膨潤性シール材を
用いた場合には不充分であった水の少ない箇所での止水
も可能となるので、本発明は、管ジヨイント、コンクリ
ート構造物などの間隙の止水に幅広く応用できる。According to the waterproofing method of the present invention, it is possible to stop water in places with little water, which was insufficient when using conventional water-swellable sealants. It can be widely applied to stop water in the gaps between objects.
第１図〜第３図は、本発明の実施例それぞれにおける施
工態様を示す断面図、第４図（イ）〜（ル）は、何れも
本発明に用いられる水膨潤性シール材を示す断面図であ
る。
１．１゛・・管
２・・・・・間隙
３・・・・・水膨潤性シール材
４．４゛ ・・吸水性樹脂製フオーム
５・・・・・ストッパー
６・・・・・バックアツプ材
７・・・・・目地材
特許出願人 旭電化工業株式会社
図面の浄書（丙宵１ξ変更なし］′
第１図
第４
（ハ） （ニ）（ホ）
（へ）図
（ワ） （ヌ）（ル）
手続補正書
特願昭６２−９４６８０号
２、発明の名称
防水工法
３、補正をする者
事件との関係 特許出願人
（０３８）旭電化工業株式会社
（６２０）三菱重工業株式会社
４、代理人
東京都港区赤坂九丁目６番２９号
パシフィック乃木坂６０１号
自発補正（出願口から１年３ケ月以内の補正）６、？！
ｉ正の対象
明細書の発明の詳細な説明の欄
７、補正の内容
（１１第４頁１５行〜１６行の「吸水性・・・形態で」
を「水膨潤性シール材が直接接触するのを阻害しない形
態で吸水性フオーム状物質を」と補正。
以上
手続補正書（方式）
１、事件の表示
事件との関係 特許出願人
（０３８）旭電化工業株式会社
（６２０）三菱重工業株式会社
４、代理人
東京都港区赤坂九丁目６番２９号
パシフィック乃木坂６０１号
昭和６２年６月３０日（発送日）
６、補正の対象
代理権を証明する書面及び図面。
７、補正の内容
（１１委任状（三菱重工業株式会社の分）を別紙添付の
通り補正。
（２）適正な図面を別紙添付の通り補正（内容に変更な
し）。
以上Figures 1 to 3 are cross-sectional views showing the construction mode in each of the embodiments of the present invention, and Figures 4 (a) to (l) are cross-sectional views showing the water-swellable sealing material used in the present invention. It is a diagram. 1.1゛...Pipe 2...Gap 3...Water-swellable sealing material 4.4゛...Water-absorbing resin form 5...Stopper 6...Back Appointment material 7...Applicant for joint material patent Asahi Denka Kogyo Co., Ltd. Engraving of drawings (Heiyo 1ξ unchanged)' Fig. 1 No. 4 (C) (D) (E)
(F) Diagram (W) (N) (R) Procedural amendment Japanese Patent Application No. 62-94680 2, name of the invention waterproofing method 3, relationship with the case of the person making the amendment Patent applicant (038) Asahi Denka Kogyo Co., Ltd. Company (620) Mitsubishi Heavy Industries, Ltd. 4, Agent No. 601 Pacific Nogizaka, 6-29 Akasaka 9-chome, Minato-ku, Tokyo Voluntary amendment (amendment within 1 year and 3 months from filing date) 6.? !
Column 7 of the detailed description of the invention in the correct subject specification, content of amendment (11, page 4, lines 15-16, "Water absorbency...in the form")
was corrected to ``a water-absorbing foam material in a form that does not inhibit direct contact with the water-swellable sealant''. Written amendment to the above procedure (method) 1. Relationship of the case to the indicated case Patent applicant (038) Asahi Denka Kogyo Co., Ltd. (620) Mitsubishi Heavy Industries, Ltd. 4, Agent Pacific, 6-29 Akasaka 9-chome, Minato-ku, Tokyo Nogizaka 601 June 30, 1988 (shipment date) 6. Documents and drawings certifying the right of representation subject to amendment. 7. Contents of amendment (11. Power of attorney (for Mitsubishi Heavy Industries, Ltd.) is amended as attached. (2) Appropriate drawings are amended as attached (no change in content).
Claims (2)
ル材を、吸水性フォーム状物質に水を含浸させて止水す
べき間隙にセットすることを特徴とする防水工法。(1) A waterproofing method characterized in that a water-swellable sealing material incorporating a water-absorbing foam-like material is set in a gap where water is to be stopped by impregnating the water-absorbing foam-like material with water.
ある、特許請求の範囲第（１）項記載の防水工法。(2) The waterproofing method according to claim (1), wherein the water-absorbing foam material is a water-absorbing resin foam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62094680A JPH0788907B2 (en) | 1987-04-17 | 1987-04-17 | Waterproof construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62094680A JPH0788907B2 (en) | 1987-04-17 | 1987-04-17 | Waterproof construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63266272A true JPS63266272A (en) | 1988-11-02 |
| JPH0788907B2 JPH0788907B2 (en) | 1995-09-27 |
Family
ID=14116928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62094680A Expired - Fee Related JPH0788907B2 (en) | 1987-04-17 | 1987-04-17 | Waterproof construction |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0788907B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007075515A (en) * | 2005-09-16 | 2007-03-29 | Inaba Denki Sangyo Co Ltd | Tool and method for fireproofing opening portion |
| CN104775622A (en) * | 2015-02-16 | 2015-07-15 | 中交第二航务工程局有限公司 | Waterstop belt grouting method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4827740A (en) * | 1971-08-10 | 1973-04-12 | ||
| JPS6358835U (en) * | 1986-10-03 | 1988-04-19 |
-
1987
- 1987-04-17 JP JP62094680A patent/JPH0788907B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4827740A (en) * | 1971-08-10 | 1973-04-12 | ||
| JPS6358835U (en) * | 1986-10-03 | 1988-04-19 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007075515A (en) * | 2005-09-16 | 2007-03-29 | Inaba Denki Sangyo Co Ltd | Tool and method for fireproofing opening portion |
| CN104775622A (en) * | 2015-02-16 | 2015-07-15 | 中交第二航务工程局有限公司 | Waterstop belt grouting method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0788907B2 (en) | 1995-09-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |