JPH0410200Y2 - - Google Patents
Info
- Publication number
- JPH0410200Y2 JPH0410200Y2 JP1986011173U JP1117386U JPH0410200Y2 JP H0410200 Y2 JPH0410200 Y2 JP H0410200Y2 JP 1986011173 U JP1986011173 U JP 1986011173U JP 1117386 U JP1117386 U JP 1117386U JP H0410200 Y2 JPH0410200 Y2 JP H0410200Y2
- Authority
- JP
- Japan
- Prior art keywords
- water
- swellable
- rubber elastic
- elastic material
- rubber
- 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
Links
- 229920001971 elastomer Polymers 0.000 claims description 43
- 239000005060 rubber Substances 0.000 claims description 43
- 239000013013 elastic material Substances 0.000 claims description 37
- 239000000463 material Substances 0.000 claims description 24
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 15
- 239000003795 chemical substances by application Substances 0.000 claims description 13
- 239000004744 fabric Substances 0.000 claims description 13
- 239000000049 pigment Substances 0.000 claims description 13
- 239000000565 sealant Substances 0.000 claims description 13
- 238000007906 compression Methods 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 9
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 7
- 244000043261 Hevea brasiliensis Species 0.000 claims description 6
- 229920001577 copolymer Polymers 0.000 claims description 6
- 229920003052 natural elastomer Polymers 0.000 claims description 6
- 229920001194 natural rubber Polymers 0.000 claims description 6
- BLCTWBJQROOONQ-UHFFFAOYSA-N ethenyl prop-2-enoate Chemical compound C=COC(=O)C=C BLCTWBJQROOONQ-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 238000000576 coating method Methods 0.000 description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 22
- 239000011248 coating agent Substances 0.000 description 21
- 239000003566 sealing material Substances 0.000 description 21
- 206010042674 Swelling Diseases 0.000 description 13
- 239000011241 protective layer Substances 0.000 description 12
- 230000008961 swelling Effects 0.000 description 12
- 230000000694 effects Effects 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 3
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229920006026 co-polymeric resin Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920000247 superabsorbent polymer Polymers 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Landscapes
- Sealing Material Composition (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Building Environments (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、セグメント等の継目をシールするた
めの水膨潤性弾性シーリング材に係り、より詳細
には、特に、セグメントリング間、セグメントピ
ース間等の継目の水膨潤性弾性シーリング材であ
つて、施工時および施工前の水膨潤を防止し、施
工性を良好にした水膨潤性弾性シーリング材に関
する。[Detailed description of the invention] [Industrial application field] The present invention relates to a water-swellable elastic sealant for sealing joints of segments, etc. The present invention relates to a water-swellable elastic sealing material for seams such as the like, which prevents water swelling during and before construction and improves workability.
セグメントは継手目地の多い建造物であるため
に、土質の変化等によつて荷重変化をおこす。そ
こで、該目地部分には止水用のシーリング材が配
設されている。
Since the segment is a building with many joints, the load changes due to changes in soil quality, etc. Therefore, a water-stopping sealant is provided at the joint portion.
そこで、該シーリング材としては、近年、水膨
潤性ゴム弾性材が使用され、水膨潤性ゴム弾性
材のみよりなるもの、水膨潤性ゴム弾性材に熱
溶融接着性物質を配してセグメント等への装着を
容易にしたもの（実開昭59−192331ご公報参照）
等が使用されている。該シーリング材はゴムの持
つゴム弾性による一次止水と、不等沈下等によつ
てセグメント間に空隙が生じ漏水が発生すると、
該ゴムが水を自己吸水し、水膨脹圧によつて再度
水みちを押さえて止水するように作用するので、
トンネルが動きセグメントが多少ずれても該隙間
部を確実にシールできるという利点を有してい
る。 Therefore, in recent years, water-swellable rubber elastic materials have been used as sealing materials, such as those made only of water-swellable rubber elastic materials, and those made of water-swellable rubber elastic materials with a heat-melting adhesive substance applied to segments, etc. (Refer to Utility Model Publication No. 59-192331)
etc. are used. This sealing material has a primary water stoppage due to the rubber elasticity of the rubber, and when water leakage occurs due to gaps between segments due to uneven settlement, etc.
The rubber self-absorbs water and acts to stop the water by blocking the water path again due to the water expansion pressure.
This has the advantage that even if the tunnel moves and the segments shift somewhat, the gap can be reliably sealed.
しかし、このシーリング材の場合、保管時、組
立作業時に雨、雪等に曝されると水膨潤して施工
時において使いものにならなくなるという問題点
を有している。 However, this sealant has the problem that if it is exposed to rain, snow, etc. during storage or assembly work, it swells with water and becomes useless during construction.
そこで、近年、基材として水膨潤性ゴム弾性材
を用い、その表面を圧壊性保護層で被覆するよう
にした構成のシーリング材が提案されている（特
公昭56−29911号公報参照）。 Therefore, in recent years, a sealing material has been proposed in which a water-swellable rubber elastic material is used as a base material and the surface thereof is covered with a crushable protective layer (see Japanese Patent Publication No. 56-29911).
そして、このシーリング材の場合、施工前、組
み立て時においては、水膨潤性ゴム弾性材が圧壊
性保護層で保護されて、組み立て施工でセグメン
トの圧によつて、該圧壊性保護層が壊され、水膨
潤性ゴム弾性材がシール材として作用するという
利点を有している。 In the case of this sealant, the water-swellable rubber elastic material is protected by a crushable protective layer before construction and during assembly, and the crushable protective layer is not destroyed by the pressure of the segments during assembly. , the water-swellable rubber elastic material has the advantage of acting as a sealing material.
しかし、上述したシーリング材の場合、次のよ
うな問題がある。すなわち、
シーリング材の表面に潤滑剤等を塗布した状
態で使用する必要があるので、施工性に難点が
ある。
However, the above-mentioned sealing material has the following problems. That is, it is necessary to apply a lubricant or the like to the surface of the sealant before use, which poses a problem in workability.
水膨潤性ゴム弾性材を分離した状態で圧壊性
保護層によりカバーする構成となるので、製作
に手数を要する。 Since the structure is such that the water-swellable rubber elastic material is separated and covered with a crushable protective layer, it is time-consuming to manufacture.
そこで、本考案者は、このような問題に鑑み、
種々、研究した結果、水膨潤性ゴム弾性材に圧壊
性保護層を重合一体構造とし、かつ該圧壊性保護
層自体を自己潤滑性を有する樹脂で形成すること
で解決できることを知り得た。 Therefore, in view of these problems, the inventor of the present invention
As a result of various studies, it was discovered that the problem could be solved by forming a crushable protective layer into a water-swellable rubber elastic material with a polymerized integral structure, and by forming the crushable protective layer itself from a self-lubricating resin.
しかし、この構成の場合、水膨潤性ゴム弾性材
と圧壊性保護層とを一体構造となるため、シーリ
ング材として構造物のコーナー部に施工する場合
に、水膨潤性ゴム弾性材と圧壊性保護層との伸縮
性が異なるため、表面に亀裂が生じやすくなると
共に、少しの亀裂で水膨潤性ゴム弾性材と圧壊性
保護層との境面よりの水浸透が進み易くなるとい
う問題がある。 However, in this configuration, the water-swellable rubber elastic material and the crushable protective layer are integrated, so when applying the water-swellable rubber elastic material and the crushable protective layer to the corners of a structure as a sealant, the water-swellable rubber elastic material and the crushable protective layer are Due to the difference in elasticity between the layers, cracks are likely to occur on the surface, and even a small crack can easily cause water to penetrate through the interface between the water-swellable rubber elastic material and the crushable protective layer.
本考案は、上述した点に対処して考案したもの
であつて、その目的とする処は、水膨潤性ゴム弾
性材と圧壊性保護層との接合部が融合的に一体化
し、かつ水膨潤性ゴム弾性材と圧壊性保護層とが
一体としてセグメント等の構造物のコーナー等に
も追随し、曲げによる亀裂の発生を軽減でき、構
造物組立前においては雨、雪等によつて水膨潤す
るおそれのない水膨潤性弾性シーリング材を提供
することにある。 The present invention was devised in response to the above-mentioned points, and its purpose is to integrate the water-swellable rubber elastic material and the crushable protective layer in a fused manner, and to The rubber elastic material and the crushable protective layer work together to conform to the corners of structures such as segments, reducing the occurrence of cracks caused by bending, and preventing water swelling caused by rain, snow, etc. before the structure is assembled. An object of the present invention is to provide a water-swellable elastic sealing material that is free from the risk of water-swelling.
そして、上記課題を達成するための手段として
の本考案の水膨潤性弾性シーリング材は、ABS
樹脂または天然ゴムと、アクリル酸ビニルアルコ
ール共重合体とに顔料と加硫剤とを入れた生地
と、該生地中に顔料と加硫剤とを入れていない生
地とを等量混合成型して得た水膨潤性ゴム弾性材
の表面に、引つ張りあるいは圧縮による破断時の
伸びが50％以上有する熱可塑製ゴム材よりなる非
吸水性被膜を塗布形成した構成よりなる。
The water-swellable elastic sealing material of the present invention as a means to achieve the above-mentioned problems is based on ABS
A fabric containing resin or natural rubber, vinyl acrylate alcohol copolymer, pigment and vulcanizing agent, and fabric containing no pigment and vulcanizing agent are mixed and molded in equal amounts. It consists of a structure in which a non-water-absorbing coating made of a thermoplastic rubber material having an elongation at break under tension or compression of 50% or more is coated on the surface of the obtained water-swellable rubber elastic material.
本考案の水膨潤性弾性シーリング材は、従来の
シーリング材と同様に、セグメント等の各種構造
物に配設して、該構造物を組立、締めつけること
で、該シーリング材の表面に被覆されている非吸
水性被膜がセグメントの圧縮により破断されて基
材部分の水膨潤性ゴム弾性材が水を吸収すること
により膨潤し、該構造物の止水を行うように作用
する。 The water-swellable elastic sealant of the present invention, like conventional sealants, can be placed on various structures such as segments, and by assembling and tightening the structures, the surface of the sealant can be coated. The non-water-absorbing coating on the structure is ruptured by compression of the segments, and the water-swellable rubber elastic material in the base portion absorbs water and swells, acting to stop water from entering the structure.
ここで、本考案の水膨潤性弾性シーリング材の
場合、基材として、ABS樹脂または天然ゴムと、
アクリル酸ビニルアルコール共重合体とに顔料と
加硫剤とを入れた生地と、該生地中に顔料と加硫
剤とを入れていない生地とを等量混合成型して得
た水膨潤性ゴム弾性材を用い、非吸水性被膜とし
て、引つ張りあるいは圧縮による破断時の伸びが
50％以上有する熱可塑製ゴム材を用い、該熱可塑
製ゴム材を塗布形成するようにしていることよ
り、該熱可塑製ゴム材が、上記特殊構成の水膨潤
性ゴム弾性材内に融合的に一体化した被膜を形成
し、該水膨潤性ゴム弾性材の表面および内層部
が、中心部に比べて強固となり、曲げによる亀裂
発生を軽減できるように作用する。 In the case of the water-swellable elastic sealant of the present invention, ABS resin or natural rubber is used as the base material,
A water-swellable rubber obtained by mixing and molding equal amounts of a fabric containing an acrylic acid vinyl alcohol copolymer, a pigment, and a vulcanizing agent, and a fabric containing no pigment and vulcanizing agent. Made of elastic material, with a non-water-absorbing coating that will not elongate at break due to tension or compression.
By using a thermoplastic rubber material having a content of 50% or more and applying and forming the thermoplastic rubber material, the thermoplastic rubber material is fused into the water-swellable rubber elastic material having the above-mentioned special configuration. The surface and inner layer of the water-swellable rubber elastic material are stronger than the center, which acts to reduce the occurrence of cracks due to bending.
以上のように、本考案の水膨潤性弾性シーリン
グ材は、基材としてABS樹脂または天然ゴム
と、アクリル酸ビニルアルコール共重合体とに顔
料と加硫剤とを入れた生地と、該生地中に顔料と
加硫剤とを入れていない生地とを等量混合成型し
て得た特殊配合の水膨潤性ゴム弾性材を用いた
点、非吸水性被膜として引つ張りあるいは圧縮
による破断時の伸びが50％以上有する熱可塑製ゴ
ム材を用いた点を組み合わせ、かつ熱可塑製ゴ
ム材を塗布することで、非吸水性被膜を形成する
ようにした点に特徴を有し、この両者を選択採用
することで、前述した格別な作用を奏するシーリ
ング材である。 As described above, the water-swellable elastic sealing material of the present invention consists of a fabric made of ABS resin or natural rubber as a base material, an acrylic acid vinyl alcohol copolymer containing a pigment and a vulcanizing agent, and a fabric in which a pigment and a vulcanizing agent are added. The use of a specially formulated water-swellable rubber elastic material obtained by mixing and molding equal amounts of pigment and fabric that does not contain a vulcanizing agent, and the use of a non-water-absorbing coating that makes it difficult to break under tension or compression. It is characterized by the combination of using a thermoplastic rubber material with an elongation of 50% or more, and by applying the thermoplastic rubber material to form a non-water-absorbing coating. It is a sealing material that, when selectively employed, provides the above-mentioned special effects.
以下、図面を参照しながら本考案を具体化した
実施例について説明する。
Hereinafter, embodiments embodying the present invention will be described with reference to the drawings.
ここに、第１図は本考案の実施例を示す断面
図、第２図は圧縮した状態を示す拡大断面図、第
３図は構造物（セグメント）に貼着した状態を示
す斜視図、第４図は本実施例のシーリング材の圧
縮前後のそれぞれの吸水率（膨潤量）を時経列的
に表したグラフである。 Here, FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is an enlarged sectional view showing the compressed state, FIG. 3 is a perspective view showing the state stuck to a structure (segment), and FIG. FIG. 4 is a graph showing the water absorption rate (swelling amount) of the sealing material of this example before and after compression over time.
本実施例の水膨潤性弾性シーリング材は、セグ
メントシール材１０として具体化したものであつ
て、水膨潤性ゴム弾性材１１を基材とし、その表
面に非吸水性被膜１２を塗布形成した構成よりな
つている。 The water-swellable elastic sealing material of this example is embodied as a segment sealing material 10, and has a structure in which a water-swellable rubber elastic material 11 is used as a base material, and a non-water-absorbing coating 12 is coated on the surface of the water-swellable rubber elastic material 11. It's getting more familiar.
ここで、水膨潤性ゴム弾性材１１としては、
ABS（アクリロニトリル・ブタジエン・スチレ
ン・共重合体）樹脂や天然ゴムと高吸水性ポリマ
ー（アクリル酸ビニルアルコール共重合体）とに
顔料と加硫剤を入れた生地と該顔料と加硫剤を入
れてない生地とを等量混合して成型したもの（登
録商標「アクアケル」：王子ゴム化成(株)製）を用
いている。 Here, as the water-swellable rubber elastic material 11,
A fabric made of ABS (acrylonitrile-butadiene-styrene copolymer) resin or natural rubber and a super absorbent polymer (acrylic acid vinyl alcohol copolymer) containing a pigment and a vulcanizing agent, and a fabric containing the pigment and vulcanizing agent. The product is made by mixing equal amounts of non-woven fabric and molding (registered trademark ``Aquakel'', manufactured by Oji Rubber Chemicals Co., Ltd.).
また、非吸水性被膜１２を形成する非吸水性被
膜材としては、CR−ACのり等の熱可塑性ゴム溶
液を用い、該熱可塑性ゴム溶液を塗布して水膨潤
性ゴム弾性材１１の表面に40％以上の伸びを生じ
るように一体化してある。従つて、塗布によつ
て、特殊配合よりなる水膨潤性ゴム弾性材１１の
表層、内層部に熱可塑性ゴム溶液が浸透し、水膨
潤性ゴム弾性材１１の表層、内層部を強固にする
と共に、非吸水性被膜１２の一体化は増強される
ようになる。これは、水膨潤性ゴム弾性材１１と
して、上記特殊配合のものを用い、かつ非吸水性
被膜材として熱可塑性ゴム材を用いたことによ
る。そして、これより、伸びが小さいとコーナー
等への配設時に該非吸水性被膜が破断するおそれ
を解消できる。なお、非吸水性被膜材は、その他
に熱可塑性スチレンブタジエンゴム等の熱可塑性
ゴムを用い、これを各種のコーテイング法によつ
て水膨潤性ゴム弾性材１１に被覆し非吸水性被膜
を形成してもよい。 In addition, as the non-water-absorbing coating material for forming the non-water-absorbing coating 12, a thermoplastic rubber solution such as CR-AC glue is used, and the thermoplastic rubber solution is applied to the surface of the water-swellable rubber elastic material 11. It is integrated to produce over 40% elongation. Therefore, by coating, the thermoplastic rubber solution penetrates into the surface and inner layers of the water-swellable rubber elastic material 11 made of a special formulation, thereby strengthening the surface and inner layers of the water-swellable rubber elastic material 11. , the integration of the non-water-absorbing coating 12 is enhanced. This is due to the fact that the water-swellable rubber elastic material 11 is made of the above-mentioned specially formulated material, and the non-water-absorbing coating material is a thermoplastic rubber material. From this, if the elongation is small, it is possible to eliminate the possibility that the non-water-absorbing coating will break when placed in a corner or the like. In addition, as the non-water-absorbing coating material, a thermoplastic rubber such as thermoplastic styrene-butadiene rubber is used, and this is coated on the water-swellable rubber elastic material 11 by various coating methods to form a non-water-absorbing coating. You can.
なお、セグメントシール材１０の表面にはブチ
ル粘着テープを配設すると共に、該粘着テープの
外表面に離型紙が配設されている。 Note that a butyl adhesive tape is provided on the surface of the segment sealing material 10, and a release paper is provided on the outer surface of the adhesive tape.
そして、離型紙を剥がし、セグメント１３にブ
チル粘着テープを介して配設し（第３図参照）、
該セグメントと他のセグメントを接合し、組立・
締めつけることにより、非吸水性被膜材１２が圧
縮されて破断するとともにセグメント間に隙間が
生じないようにシールし、更に基材としての水膨
潤性ゴム弾性材１１が吸水できる態勢となる。そ
して、まず、水膨潤性ゴム弾性材１１が一般のゴ
ムパツキンと同様のゴム弾性圧によりセグメント
間をシール（一次シール効果）し、また、漏水等
で水に接触すると水膨潤性ゴム弾性材１１中の親
水性部が水の分子と自己体積膨脹を起こして不等
沈下等により生じたセグメントの間隙に追随して
二次シールをするように作用する。 Then, peel off the release paper and place it on the segment 13 via the butyl adhesive tape (see Figure 3).
Join this segment to other segments and assemble/
By tightening, the non-water-absorbent coating material 12 is compressed and broken, and the segments are sealed so that no gaps are formed, and the water-swellable rubber elastic material 11 as the base material is ready to absorb water. First, the water-swellable rubber elastic material 11 seals between segments (primary sealing effect) with the same rubber elastic pressure as a general rubber seal, and when it comes into contact with water due to water leakage, the water-swellable rubber elastic material 11 The hydrophilic portion causes self-volume expansion with water molecules and acts to form a secondary seal by following the gaps between the segments caused by uneven subsidence or the like.
続いて、上述構成の実施例の５倍膨潤タイプの
水膨潤性弾性シーリング材（厚さ：３mm、幅：
20、長さ：50mmの試料）の効果を確認するために
水道水に７日間連続して侵漬して圧縮前後のそれ
ぞれの膨潤量を時経列的に測定すると次にような
結果を得た。すなわち、圧縮による非吸水性被膜
材が破断してない状態の水膨潤性弾性シーリング
材の膨潤量は７日間でその吸水率が35％以内であ
り、また、該非吸水性被膜材を破断したものにつ
いてはその吸水率が３日間で430％、６日間で500
％となり飽和膨潤状態を示した。 Next, a water-swellable elastic sealing material of 5 times swelling type (thickness: 3 mm, width:
20, length: 50 mm sample) was immersed in tap water for 7 consecutive days and the amount of swelling before and after compression was measured over time, and the following results were obtained. Ta. In other words, the amount of swelling of the water-swellable elastic sealant in a state where the non-water-absorbing coating material is not broken due to compression is within 35% in water absorption within 7 days; The water absorption rate is 430% in 3 days and 500% in 6 days.
%, indicating a saturated swelling state.
このことより、基材の水膨潤性ゴム弾性材の膨
潤が非吸水性被膜によつて長時間阻止され、非吸
水性被膜材を破断することにより水膨潤を開始す
ることが分かつた。 From this, it was found that the swelling of the water-swellable rubber elastic material of the base material was prevented for a long time by the non-water-absorbing coating, and water swelling started when the non-water-absorbing coating material was ruptured.
ここで、上述した実施例においては、水膨潤性
弾性シーリング材をセグメントシーリング材とし
て説明したが、ヒユーム管、推進管、Ｕ字溝等の
パツキン材（シーリング材）として用い地下埋設
配管構造物の不等沈下等のズレを吸収し長期間の
止水効果を持たせるようにした構成等としてもよ
いことは明らかである。 Here, in the above-mentioned embodiment, the water-swellable elastic sealing material was explained as a segment sealing material, but it can also be used as a sealing material (sealing material) for humid pipes, propulsion pipes, U-shaped grooves, etc. for underground piping structures. It is clear that a structure that absorbs deviations such as uneven settlement and has a water-stopping effect for a long period of time may be used.
なお、本考案は前述実施例に限定されるもので
なく、本考案の要旨を変更しない範囲内で設計変
形できることは明らかである。 It should be noted that the present invention is not limited to the above-mentioned embodiments, and it is clear that the design can be modified without changing the gist of the present invention.
以上の記載より明らかなように、本考案の水膨
潤性弾性シーリング材によれば、基材として
ABS樹脂または天然ゴムと、アクリル酸ビニル
アルコール共重合体とに顔料と加硫剤とを入れた
生地と、該生地中に顔料と加硫剤とを入れていな
い生地とを等量混合成型して得た特殊配合の水膨
潤性ゴム弾性材を用い、非吸水性被膜として引つ
張りあるいは圧縮による破断時の伸びが50％以上
有する熱可塑製ゴム材を用い、かつ該熱可塑製ゴ
ム材を塗布することで、非吸水性被膜を形成する
ようにして、該熱可塑製ゴム材が、上記特殊構成
の水膨潤性ゴム弾性材内に融合的に一体化した被
膜を形成し、該水膨潤性ゴム弾性材の表面および
内層部が、中心部に比べて強固となり、曲げ部へ
の装着に際しても、非吸水性被膜と熱可塑製ゴム
材とが一体として追随し、曲げによる亀裂発生を
防止できるようにしているので、構造物への施工
時および施工前において水（雪、雨等）に曝され
ても膨潤が阻止され、セグメント等の組立・締め
つけ前に膨潤するという危険性が排除できるとい
う効果を有する。
As is clear from the above description, according to the water-swellable elastic sealant of the present invention, as a base material,
Equal amounts of a fabric containing ABS resin or natural rubber, vinyl acrylate alcohol copolymer, pigment and vulcanizing agent, and fabric without pigment and vulcanizing agent are mixed and molded. Using a specially formulated water-swellable rubber elastic material obtained from By coating the thermoplastic rubber material to form a non-water-absorbing film, the thermoplastic rubber material forms a film that is fused and integrated within the water-swellable rubber elastic material with the above-mentioned special structure, and the water-absorbing film is formed by applying The surface and inner layer of the swellable rubber elastic material are stronger than the center, and even when attached to a bent part, the non-water-absorbing coating and thermoplastic rubber follow as one, preventing cracks from occurring due to bending. This prevents swelling even if exposed to water (snow, rain, etc.) during and before construction on a structure, eliminating the risk of swelling before assembling and tightening segments, etc. It has the effect of being able to.
第１図は本考案の実施例を示す断面図、第２図
は圧縮した状態を示す拡大断面図、第３図は構造
物（セグメント）に貼着した状態を示す斜視図、
第４図は本実施例のシーリング材の圧縮前後のそ
れぞれの吸水率（膨潤量）を時経列的に表したグ
ラフである。
１０……セグメントシーリング材、１１……水
膨潤性ゴム弾性材、１２……非吸水性被膜。
FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is an enlarged sectional view showing the compressed state, and FIG. 3 is a perspective view showing the state attached to a structure (segment).
FIG. 4 is a graph showing the water absorption rate (swelling amount) of the sealing material of this example before and after compression over time. 10...Segment sealing material, 11...Water-swellable rubber elastic material, 12...Non-water-absorbing coating.
Claims (1)
ルアルコール共重合体とに顔料と加硫剤とを入れ
た生地と、該生地中に顔料と加硫剤とを入れてい
ない生地とを等量混合成型して得た水膨潤性ゴム
弾性材の表面に、引つ張りあるいは圧縮による破
断時の伸びが50％以上有する熱可塑製ゴム材より
なる非吸水性被膜を塗布形成してなることを特徴
とする水膨潤性弾性シーリング材。 Equal amounts of a fabric containing ABS resin or natural rubber, vinyl acrylate alcohol copolymer, pigment and vulcanizing agent, and fabric without pigment and vulcanizing agent are mixed and molded. A non-water-absorbing film made of a thermoplastic rubber material having an elongation at break under tension or compression of 50% or more is applied to the surface of the water-swellable rubber elastic material obtained by the process. Water-swellable elastic sealant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986011173U JPH0410200Y2 (en) | 1986-01-28 | 1986-01-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986011173U JPH0410200Y2 (en) | 1986-01-28 | 1986-01-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62122851U JPS62122851U (en) | 1987-08-04 |
| JPH0410200Y2 true JPH0410200Y2 (en) | 1992-03-13 |
Family
ID=30798147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986011173U Expired JPH0410200Y2 (en) | 1986-01-28 | 1986-01-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0410200Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9555803B2 (en) | 2002-05-03 | 2017-01-31 | Magna Electronics Inc. | Driver assistance system for vehicle |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5629911A (en) * | 1979-08-15 | 1981-03-25 | Minowa Kikaiten Kk | Digging method and device for root crop |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59192331U (en) * | 1983-06-08 | 1984-12-20 | 伸和化工株式会社 | Water stop sealing material |
-
1986
- 1986-01-28 JP JP1986011173U patent/JPH0410200Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5629911A (en) * | 1979-08-15 | 1981-03-25 | Minowa Kikaiten Kk | Digging method and device for root crop |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9555803B2 (en) | 2002-05-03 | 2017-01-31 | Magna Electronics Inc. | Driver assistance system for vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62122851U (en) | 1987-08-04 |
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