JPH0144689Y2 - - Google Patents
Info
- Publication number
- JPH0144689Y2 JPH0144689Y2 JP17235684U JP17235684U JPH0144689Y2 JP H0144689 Y2 JPH0144689 Y2 JP H0144689Y2 JP 17235684 U JP17235684 U JP 17235684U JP 17235684 U JP17235684 U JP 17235684U JP H0144689 Y2 JPH0144689 Y2 JP H0144689Y2
- Authority
- JP
- Japan
- Prior art keywords
- water
- swellable
- shrinkage
- parts
- low
- 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
- 239000000463 material Substances 0.000 claims description 10
- 239000000126 substance Substances 0.000 description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 229920001971 elastomer Polymers 0.000 description 8
- 239000005060 rubber Substances 0.000 description 7
- 239000004568 cement Substances 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- 230000008961 swelling Effects 0.000 description 5
- 238000009415 formwork Methods 0.000 description 4
- 229920005749 polyurethane resin Polymers 0.000 description 4
- 244000043261 Hevea brasiliensis Species 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 229920003052 natural elastomer Polymers 0.000 description 3
- 229920001194 natural rubber Polymers 0.000 description 3
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 3
- OWRCNXZUPFZXOS-UHFFFAOYSA-N 1,3-diphenylguanidine Chemical compound C=1C=CC=CC=1NC(=N)NC1=CC=CC=C1 OWRCNXZUPFZXOS-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 239000003431 cross linking reagent Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 239000011396 hydraulic cement Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 230000002522 swelling effect Effects 0.000 description 2
- 229920002554 vinyl 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
- IBOFVQJTBBUKMU-UHFFFAOYSA-N 4,4'-methylene-bis-(2-chloroaniline) Chemical compound C1=C(Cl)C(N)=CC=C1CC1=CC=C(N)C(Cl)=C1 IBOFVQJTBBUKMU-UHFFFAOYSA-N 0.000 description 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 241001112258 Moca Species 0.000 description 1
- 229920001730 Moisture cure polyurethane Polymers 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 229920000147 Styrene maleic anhydride Polymers 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000011400 blast furnace cement Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- JXCHMDATRWUOAP-UHFFFAOYSA-N diisocyanatomethylbenzene Chemical compound O=C=NC(N=C=O)C1=CC=CC=C1 JXCHMDATRWUOAP-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 150000002898 organic sulfur compounds Chemical class 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920006295 polythiol Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 235000014692 zinc oxide Nutrition 0.000 description 1
Landscapes
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は埋込用丸駒に関する。[Detailed explanation of the idea] [Industrial application field] The present invention relates to an embedded round piece.
従来より、型枠内にコンクリートを打設する際
は、型枠の間隔を一定に保持するため、コンクリ
ートセパレータを用いるのが普通である。コンク
リートの硬化後は型枠が外されるのに対し、この
コンクリートセパレータは、コンクリート内に一
体に埋設されて残される。このとき、コンクリー
トセパレータを型枠に固定するために用いた丸駒
の取り外し穴に、セパレータとコンクリートの間
のすきまから生じる漏水を押さえるため埋込用丸
駒を埋込むことが行われている。（実公昭56−
1843号参照）。
Conventionally, when pouring concrete into formwork, it has been common to use concrete separators to maintain constant spacing between the formwork. After the concrete hardens, the formwork is removed, but the concrete separator remains embedded in the concrete. At this time, embedding round pieces are embedded in the removal holes of the round pieces used to fix the concrete separator to the formwork in order to prevent water leakage from the gap between the separator and the concrete. (Jikko 56-
(See No. 1843).
そして、その止水性をさらに確実なものとする
ため、丸駒の一部を水膨潤性物質で形成すること
が提案されている（特開昭53−98128号参照）。 In order to further ensure its watertightness, it has been proposed to form part of the round piece with a water-swellable material (see Japanese Patent Laid-Open No. 53-98128).
しかしながら、これまでの水膨潤性物質は水と
接触して一旦膨張した後、乾燥状態になると収縮
してもとに戻るものでしかなく、これを丸駒に適
用した場合、乾燥状態における止水性（急速な出
水の場合等）に問題があつた。 However, conventional water-swellable materials only expand once they come into contact with water, then contract and return to their original state when dry. There were problems (such as in cases of rapid flooding).
本考案の埋込用丸駒はこれを解決したもので、
その少なくとも一部が、水膨潤性物質と水硬性物
質を含有する低収縮性水膨潤性物質から構成され
ていることを特徴とする。
The embedded round piece of this invention solves this problem.
It is characterized in that at least a portion thereof is composed of a low-shrinkage water-swellable substance containing a water-swellable substance and a hydraulic substance.
本考案に用いられる上記低収縮性水膨潤性物質
は、必須の成分として水膨潤性物質と水硬性物質
を含有する。 The low shrinkage water-swellable substance used in the present invention contains a water-swellable substance and a hydraulic substance as essential components.
上記水膨潤性物質としては、水膨潤性ウレタン
樹脂、カルボキシメチルセルロース、ポリビニル
アルコール、ポリエチレングリコール、ヒドロキ
シエチルセルロース、メチルセルロース、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の塩、ポリアクリル酸ソー
ダの架橋物、ポリビニルアルコール−無水マレイ
ン酸反応体の架橋物、ビニルエステル−エチレン
系不飽和カルボン酸又はそのケン化物等があげら
れる。 The above-mentioned water-swellable substances include water-swellable urethane resin, carboxymethyl cellulose, polyvinyl alcohol, polyethylene glycol, hydroxyethyl cellulose, methyl cellulose, starch-acrylic acid graft copolymer, styrene-maleic anhydride copolymer salt, polyacrylic Examples include a crosslinked product of acid soda, a crosslinked product of polyvinyl alcohol-maleic anhydride reactant, and a vinyl ester-ethylenically unsaturated carboxylic acid or saponified product thereof.
中でも好ましいのは、水膨潤性ウレタン樹脂で
あり、特に、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と、水及び／又は硬化
剤の反応によつて得られるペースト状ポリウレタ
ン樹脂が好ましい。 Preferred among these are water-swellable urethane resins, and particularly preferred are paste-like polyurethane resins obtained by reacting a water-swellable polyurethane prepolymer containing terminal isocyanate groups with water and/or a curing agent.
水膨潤性ウレタン樹脂を用いる場合、ゴム及
び／又はエラストマーを併用することが強度を向
上させる上で好ましく、そのようなゴム類として
は、天然ゴム、合成ゴム（SBR、IR、NBR、
CR、BR、EPDM）、再生ゴム等をあげることが
できる。 When using water-swellable urethane resin, it is preferable to use rubber and/or elastomer in combination to improve strength. Such rubbers include natural rubber, synthetic rubber (SBR, IR, NBR,
CR, BR, EPDM), recycled rubber, etc.
また、本考案に用いられる水硬性物質として
は、水硬性セメントが好ましく、その他石膏も利
用できる。水硬性セメントとしては、各種ボルト
ランドセメント、高炉セメント、特殊セメント等
があげられる。 Further, as the hydraulic substance used in the present invention, hydraulic cement is preferable, and gypsum can also be used. Examples of hydraulic cements include various boltland cements, blast furnace cements, and special cements.
また水硬性物質には、セメント系急硬剤を添加
するのが好ましく、そのようなセメント系急硬剤
としては、カルシウムアルミネート系無機物、す
なわち、CaOとAl2O3の焼成物、溶融混合物、も
しくはこれらと石膏を混合したカルシウムスルホ
アルミネート等があり、市販品としては「デンカ
ES」（電気化学(株)製商品名）がある。 Further, it is preferable to add a cement-based quick hardening agent to the hydraulic substance, and examples of such a cement-based quick hardening agent include calcium aluminate-based inorganic substances, that is, calcined products of CaO and Al 2 O 3 , and molten mixtures. , or calcium sulfoaluminate, which is a mixture of these and gypsum.
ES” (trade name manufactured by Denki Kagaku Co., Ltd.).
上記の水膨潤性物質、水硬性物質、ゴム類、水
硬性物質などの配合は、得られる低収縮性水膨潤
性物質（成形品）の水膨潤率が10−350容量％、
好ましくは40−250容量％となるように調整する
のが好ましい。 When the above-mentioned water-swellable substances, hydraulic substances, rubbers, hydraulic substances, etc. are blended, the resulting low-shrinkage water-swellable substances (molded articles) have a water swelling rate of 10-350% by volume,
Preferably, it is adjusted to 40-250% by volume.
本考案の低収縮性水膨潤性物質には、さらに安
定剤、増量剤等を適宜加えることもできる。 The low-shrinkage, water-swellable substance of the present invention may further contain stabilizers, fillers, etc., as appropriate.
本考案の低収縮性水膨潤性物質は、上記必須成
分、任意成分を適当な方法で混合して得られる
が、特にゴム類を添加した場合は、ロール、ニー
ダー、バンバリーミキサー等通常のゴム混練機を
用いて配合し、押出成形機、プレス成形機により
成形するのが好ましい。この場合、架橋剤を添加
するのが好ましい。架橋剤としてはイオウ、有機
イオウ化合物、有機過酸化物、金属酸化物、アル
キルフエノール等のゴム加硫剤、ポリチオール、
ポリアミン、アゾ化合物等を適宜用いることが可
能である。 The low-shrinkage, water-swellable substance of the present invention can be obtained by mixing the above-mentioned essential components and optional components using an appropriate method. However, when rubbers are added, ordinary rubber kneading methods such as rolls, kneaders, Banbury mixers, etc. It is preferable to mix the ingredients using a machine and mold them using an extrusion molding machine or a press molding machine. In this case, it is preferable to add a crosslinking agent. Crosslinking agents include sulfur, organic sulfur compounds, organic peroxides, metal oxides, rubber vulcanizing agents such as alkylphenols, polythiol,
Polyamines, azo compounds, etc. can be used as appropriate.
本考案の低収縮性水膨潤性物質成形品の低収縮
性のテスト結果を次に示す。 The low shrinkage test results of the low shrinkage water-swellable material molded article of the present invention are shown below.
プロピレングリコールにエチレンオキサイドと
プロピレンオキサイドを付加させた平均分子量
5000、エチレンオキサイド含量78％のポリエーテ
ル１モルと、トルイレンジイソシアネート３モル
の反応により得られるウレタンプレポリマー50部
に、40％MOCA5部を40℃で反応させ、同じ温度
で6000cpsの水膨潤性ペースト状ポリウレタン樹
脂を製造した。 Average molecular weight of propylene glycol with ethylene oxide and propylene oxide added
5000, 50 parts of a urethane prepolymer obtained by reacting 1 mole of polyether with an ethylene oxide content of 78% and 3 moles of toluylene diisocyanate was reacted with 5 parts of 40% MOCA at 40°C, resulting in a water swelling property of 6000 cps at the same temperature. A paste polyurethane resin was produced.
天然ゴム100部、上記水膨潤性ペースト状ポリ
ウレタン樹脂130部、ポルトランドセメント400
部、セメント急硬剤（デンカES）400部、カーボ
ンブラツク10部、ジフエニルグアニジン（安定
剤）２部、亜鉛華３部を20cmオープンロールで混
練し、これを140℃で10分間プレスし２mmのシー
トを得た。このシートの水膨潤率（水中12日の容
積変化率）は133％、乾燥21日後の膨潤率（水中
12日後の膨潤した試験片の厚さ方向の寸法を100
したときの、21日室内放置した後の厚さ方向の寸
法の変化率）は93％であつた。 100 parts of natural rubber, 130 parts of the above water-swellable paste polyurethane resin, 400 parts of Portland cement
400 parts of cement hardening agent (Denka ES), 10 parts of carbon black, 2 parts of diphenylguanidine (stabilizer), and 3 parts of zinc white were kneaded using a 20cm open roll, and this was pressed at 140℃ for 10 minutes to form a 2mm I got a sheet of The water swelling rate (volume change rate after 12 days in water) of this sheet is 133%, and the swelling rate after 21 days after drying (in water
The dimension in the thickness direction of the swollen specimen after 12 days is 100
The rate of change in dimension in the thickness direction after being left indoors for 21 days was 93%.
一方、天然ゴム100部、上記製造の水膨潤性ペ
ースト状ポリウレタン樹脂75部、カーボンブラツ
ク10部、炭酸カルシウム50部、ジフエニルグアニ
ジン２部を用いて上記例と同様にして作成した成
形品は、水膨潤率130％、乾燥21日後の膨潤率３
％であつた。 On the other hand, a molded article prepared in the same manner as in the above example using 100 parts of natural rubber, 75 parts of the water-swellable pasty polyurethane resin produced above, 10 parts of carbon black, 50 parts of calcium carbonate, and 2 parts of diphenylguanidine was as follows: Water swelling rate 130%, swelling rate 3 after 21 days drying
It was %.
本考案の埋込用丸駒は、その全部が上記低収縮
性水膨潤性物質からなるものでもよいが、第１図
に示すように、丸駒本体１に、低収縮性水膨潤性
物質からなる外皮部２が被覆されているものが好
ましい。 The round piece for embedding of the present invention may be made entirely of the above-mentioned low-shrinkage water-swellable material, but as shown in FIG. It is preferable that the outer skin part 2 is coated.
本考案に用いられる低収縮性水膨潤性物質は、
水膨潤性に優れるばかりでなく、水を吸収後、水
硬性物質の骨格（マトリツクス）ができるので、
水中で安定で溶出物も少なく、乾燥しても収縮が
少ない。
The low shrinkage water-swellable substance used in this invention is
Not only does it have excellent water swelling properties, but it also forms a skeleton (matrix) of hydraulic substances after absorbing water.
It is stable in water, has little eluate, and has little shrinkage when dried.
かかる低収縮性水膨潤性物質を利用した本考案
の埋込用丸駒は、漏水との接触によつて、低収縮
性水膨潤性物質が膨張すると、すきまが完全にふ
さがれ、以後乾燥しても収縮が少ないので恒常的
に止水性が良好である。恒常的に止水性に優れる
ものである。 In the implantable round piece of the present invention that uses such a low-shrinkage water-swellable material, when the low-shrinkage water-swellable material swells due to contact with water leakage, the gap is completely closed and it does not dry out thereafter. Since there is little shrinkage even when the product is used, it has consistently good water-stopping properties. It has consistently excellent water-stop properties.
第１図は、本考案の埋込用丸駒の一例を示す断
面図、第２図は埋込用丸駒を埋込む穴の状態を示
すコンクリート構造体の断面図、第３図は本考案
の埋込用丸駒を埋込んだ状態を示すコンクリート
構造体の断面図である。
１……丸駒本体、２……低収縮性水膨潤性物質
外皮部、３……セパレータ、４……コンクリー
ト、５……穴。
Fig. 1 is a sectional view showing an example of the round embedding piece of the present invention, Fig. 2 is a sectional view of a concrete structure showing the condition of a hole in which the embedding round piece is embedded, and Fig. 3 is a sectional view of the concrete structure of the present invention. It is a sectional view of a concrete structure showing a state in which round pieces for embedding are embedded. DESCRIPTION OF SYMBOLS 1... Round piece body, 2... Low shrinkage water-swellable material outer skin, 3... Separator, 4... Concrete, 5... Hole.
Claims (1)
物質を含有する低収縮性水膨潤性物質から構成さ
れていることを特徴とする埋込用丸駒。 1. A round piece for embedding, characterized in that at least a part thereof is composed of a low-shrinkage water-swellable material containing a water-swellable material and a hydraulic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17235684U JPH0144689Y2 (en) | 1984-11-15 | 1984-11-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17235684U JPH0144689Y2 (en) | 1984-11-15 | 1984-11-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6187834U JPS6187834U (en) | 1986-06-09 |
| JPH0144689Y2 true JPH0144689Y2 (en) | 1989-12-25 |
Family
ID=30730025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17235684U Expired JPH0144689Y2 (en) | 1984-11-15 | 1984-11-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0144689Y2 (en) |
-
1984
- 1984-11-15 JP JP17235684U patent/JPH0144689Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6187834U (en) | 1986-06-09 |
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