JPH028459A - Form for concrete placing and its manufacture - Google Patents
Form for concrete placing and its manufactureInfo
- Publication number
- JPH028459A JPH028459A JP4188588A JP4188588A JPH028459A JP H028459 A JPH028459 A JP H028459A JP 4188588 A JP4188588 A JP 4188588A JP 4188588 A JP4188588 A JP 4188588A JP H028459 A JPH028459 A JP H028459A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- glass fiber
- fiber mat
- glass
- mat
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 229920005989 resin Polymers 0.000 claims abstract description 50
- 239000011347 resin Substances 0.000 claims abstract description 50
- 239000003365 glass fiber Substances 0.000 claims abstract description 40
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 238000000465 moulding Methods 0.000 claims abstract description 10
- 238000009415 formwork Methods 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 10
- 238000001816 cooling Methods 0.000 abstract description 2
- 239000000835 fiber Substances 0.000 description 10
- -1 polyethylene Polymers 0.000 description 10
- 229920001577 copolymer Polymers 0.000 description 7
- 239000004743 Polypropylene Substances 0.000 description 6
- 239000011521 glass Substances 0.000 description 6
- 229920001155 polypropylene Polymers 0.000 description 6
- 229920006026 co-polymeric resin Polymers 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 4
- 229920000515 polycarbonate Polymers 0.000 description 4
- 239000004417 polycarbonate Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 229920001187 thermosetting polymer Polymers 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000011152 fibreglass Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000011120 plywood Substances 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920006122 polyamide resin Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920005672 polyolefin resin Polymers 0.000 description 2
- 229920006324 polyoxymethylene Polymers 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- BBEAQIROQSPTKN-UHFFFAOYSA-N pyrene Chemical compound C1=CC=C2C=CC3=CC=CC4=CC=C1C2=C43 BBEAQIROQSPTKN-UHFFFAOYSA-N 0.000 description 2
- 229920006230 thermoplastic polyester resin Polymers 0.000 description 2
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229920001207 Noryl Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920000571 Nylon 11 Polymers 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229920000305 Nylon 6,10 Polymers 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- DHZSIQDUYCWNSB-UHFFFAOYSA-N chloroethene;1,1-dichloroethene Chemical compound ClC=C.ClC(Cl)=C DHZSIQDUYCWNSB-UHFFFAOYSA-N 0.000 description 1
- HGAZMNJKRQFZKS-UHFFFAOYSA-N chloroethene;ethenyl acetate Chemical compound ClC=C.CC(=O)OC=C HGAZMNJKRQFZKS-UHFFFAOYSA-N 0.000 description 1
- GRFFKYTUNTWAGG-UHFFFAOYSA-N chloroethene;prop-2-enenitrile Chemical compound ClC=C.C=CC#N GRFFKYTUNTWAGG-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- ROORDVPLFPIABK-UHFFFAOYSA-N diphenyl carbonate Chemical compound C=1C=CC=CC=1OC(=O)OC1=CC=CC=C1 ROORDVPLFPIABK-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- GVEPBJHOBDJJJI-UHFFFAOYSA-N fluoranthrene Natural products C1=CC(C2=CC=CC=C22)=C3C2=CC=CC3=C1 GVEPBJHOBDJJJI-UHFFFAOYSA-N 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000005340 laminated glass Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 229920001179 medium density polyethylene Polymers 0.000 description 1
- 239000004701 medium-density polyethylene Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920002959 polymer blend Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920006380 polyphenylene oxide Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Landscapes
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、コンクリート打込用型枠に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to formwork for concrete pouring.
詳しくは、熱可塑性樹脂とガラス繊維とからなるシート
又はマットをプレス成形したコンクリド打込用型枠であ
って、住宅の基礎、ビルなどの建築物の壁などのコンク
リートを打設する際に用いる型枠に関するものである。Specifically, it is a concrete pouring form made by press-molding a sheet or mat made of thermoplastic resin and glass fiber, and is used when pouring concrete for the foundations of houses, walls of buildings, etc. It concerns formwork.
［従来の技術］
従来、この種の型枠としては木製合板及び鋼板製のもの
か知られている。[Prior Art] Conventionally, this type of formwork is known to be made of wooden plywood or steel plate.
木製のものは耐腐食性か低く、またコンクリートの離型
性が悪いため使用後、その表面にコンクリートが付着す
るので、再使用するためには表面を削り取ることが必要
であり、そのため表面を損傷し、反復耐用回数か減少す
るという欠点を有していた。また、コンクリートを打ち
抜きのまま使用する場合、コンクリート表面が粗くなり
、打設したコンクリート表面をさらに表面処理する必要
もあった。Wooden items have low corrosion resistance, and the release properties of concrete are poor, so after use, concrete adheres to the surface, so it is necessary to scrape off the surface in order to reuse it, resulting in damage to the surface. However, it had the disadvantage of decreasing the number of times it could be used repeatedly. In addition, when concrete is used as is, the surface of the concrete becomes rough, and it is necessary to further treat the surface of the poured concrete.
また鋼板製の場合、重量が大で取り扱いが困難であり、
離型性が悪く、このため使用の都度離型剤を塗布する必
要があり、また錆びによる腐食が生じ、これがコンクリ
ートを汚染する心配もあっＩこ。Also, if it is made of steel plate, it is heavy and difficult to handle.
It has poor mold releasability, so it is necessary to apply a mold release agent each time it is used, and there is also the risk of corrosion due to rust, which may contaminate the concrete.
このような問題点を解決するため、カラス繊維よりなる
補強材を含有するプラスチック製コンクリート打込用型
枠が提案されている（特公昭４６１５５４３号公報）。In order to solve these problems, a plastic concrete casting form containing a reinforcing material made of glass fiber has been proposed (Japanese Patent Publication No. 4,615,543).
これはガラス繊維を中間に介在させ、熱硬化性樹脂であ
るポリエステル樹脂若しくはエポキシ樹脂など液状合成
樹脂を含浸してこれを加熱して成形するコンクリート打
込用型枠であり、木枠の表面に板を張りその表面に三層
の強化層を設けるものであり、製造が複雑であり、熱硬
化性樹脂を成形するため成形時間が長くかかる欠点があ
る。This is a formwork for concrete pouring in which glass fiber is interposed in the middle, impregnated with liquid synthetic resin such as thermosetting polyester resin or epoxy resin, and then heated and formed. The method involves placing a plate and providing three reinforcing layers on its surface, making it complicated to manufacture and requiring a long time for molding since thermosetting resin is molded.
［発明か解決しようとする課題］
この発明は、軽量で、作業性がよく、機械的強度が大き
く、離型性が良く、打設コンクリート面が滑らかで、反
復耐用回数が大きいコンクリート型枠を提供することを
目的とする。[Invention or problem to be solved] This invention provides a concrete formwork that is lightweight, has good workability, has high mechanical strength, good mold releasability, has a smooth poured concrete surface, and has a large number of repeated durability. The purpose is to provide.
［課題を解決するための手段］
本発明者らは、製造工程を簡略にするため従来の熱硬化
性樹脂を熱可塑性樹脂を使用して該型枠を製造すること
を目指し、鋭意研究の結果、単にカラス短繊維を熱可塑
性樹脂に配合したたけでは、強度の点で満足できないた
め、ガラス繊維が絡んで形成しているマット状のものを
熱可塑性樹脂の中に入れることに想到して、本発明を完
成するに至った。[Means for Solving the Problem] The present inventors aimed to manufacture the formwork by using thermoplastic resin instead of conventional thermosetting resin in order to simplify the manufacturing process, and as a result of intensive research, However, simply blending short glass fibers into a thermoplastic resin would not be satisfactory in terms of strength, so we came up with the idea of incorporating a mat-like product made by entwining glass fibers into the thermoplastic resin. The present invention has now been completed.
すなわち、本発明は、熱可塑性樹脂５０〜９０重量パー
セントの中に、ガラス繊維マット５０〜１０重量パーセ
ントを含有するプレス成形ンートよりなるコンクリート
打込用型枠並びに樹脂板材製品の表面を形成すべき２枚
の樹脂板原材料樹脂の軟化温度よりも高い温度に加熱し
て、該２枚の樹脂板原材料の間にガラス繊維マットを挟
んで重ね合わせ、加熱溶融樹脂を該ガラス繊維マットに
浸透させてプレスし、該２枚の樹脂板原材料及びガラス
繊維マットを一体的に融着接合せしめ、ついで樹脂の軟
化温度よりも低い温度に冷却してガラス繊維マット入り
樹脂板材を形成し、次いで該樹脂板材を加熱して軟化せ
しめた後所定の形状にプレス成形することを特徴とする
コンクリート打込用型枠の製造方法よりなるものである
。That is, the present invention should form the surface of a concrete pouring form and a resin plate product made of a press molding piece containing 50 to 10 weight percent of a glass fiber mat in a thermoplastic resin of 50 to 90 weight percent. Two resin plates are heated to a temperature higher than the softening temperature of the raw material resin, and the two resin plates are stacked with a glass fiber mat sandwiched between them, and the heated molten resin is infiltrated into the glass fiber mat. The two resin plate raw materials and the glass fiber mat are integrally fused and bonded by pressing, and then cooled to a temperature lower than the softening temperature of the resin to form a resin plate containing glass fiber mat, and then the resin plate material is A method for manufacturing a formwork for concrete pouring, which comprises heating and softening the concrete and then press-forming it into a predetermined shape.
本発明の樹脂板原材料に用いる熱可塑性樹脂としては、
プレス成形しうるものは総て用いることができる。The thermoplastic resin used for the resin plate raw material of the present invention includes:
Anything that can be press-molded can be used.
例えば、ポリオレフィン樹脂、塩化ビニル樹脂及びその
共重合樹脂、塩化ビニリデン樹脂、酢酸ビニル系樹脂、
ポリスチレン及びその共重き樹脂等の一般用樹脂、ポリ
アミド樹脂、ポリアセタール、ポリカーボネート、熱可
塑性ポリエステル樹脂、ポリフェニレンオキサイドおよ
びノリル樹脂、ポリスルフォン等のエンジニアリングプ
ラスチックが挙げられる。For example, polyolefin resin, vinyl chloride resin and its copolymer resin, vinylidene chloride resin, vinyl acetate resin,
Examples include general resins such as polystyrene and copolymer resins thereof, engineering plastics such as polyamide resins, polyacetals, polycarbonates, thermoplastic polyester resins, polyphenylene oxides, noryl resins, and polysulfones.
前記ポリオレフィン樹脂としては、例えば、高密度ポリ
エチレン、中、低密度ポリエチレン、直鎖状低密度ポリ
エチレン等のポリエチレン系重合体、いわゆるブロック
ポリプロピレンと呼ばれる耐衝撃性ポリプロピレン、ラ
ンダンポリプロピレンとよばれる共重合体なとのポリプ
ロピレン系重合体、ポリブテン、４−メチルペンテン−
１樹脂などを使用することができる。Examples of the polyolefin resin include polyethylene polymers such as high-density polyethylene, medium- and low-density polyethylene, and linear low-density polyethylene, impact-resistant polypropylene called block polypropylene, and copolymers called randane polypropylene. polypropylene polymer, polybutene, 4-methylpentene-
1 resin etc. can be used.
さらには、エチレン−酢酸ビニル共重合体、エチレン−
塩化ビニル共重合体、プロピレン−塩化ビニル共重合体
等のオレフィンと他の極性モノマとの共重合体をも使用
することができる。Furthermore, ethylene-vinyl acetate copolymer, ethylene-vinyl acetate copolymer,
Copolymers of olefins and other polar monomers such as vinyl chloride copolymers and propylene-vinyl chloride copolymers can also be used.
さらにまた、前記各種のホモポリマー、コポリマーのブ
レンド物をも前記熱可塑性樹脂として使用することがで
きる。Furthermore, blends of the various homopolymers and copolymers described above can also be used as the thermoplastic resin.
前記塩化ビニルの共重合体としては、例えば、塩化ビニ
ル−酢酸ビニル樹脂、塩化ビニル−塩化ビニリデン共重
合体樹脂、塩化ビニル−アクリロニトリル共重合体樹脂
等か挙げられる。Examples of the vinyl chloride copolymer include vinyl chloride-vinyl acetate resin, vinyl chloride-vinylidene chloride copolymer resin, and vinyl chloride-acrylonitrile copolymer resin.
前記酢酸ビニル形樹脂としては、たとえば、酢酸ビニル
樹脂、ポリビニルアセトアセタール、ポリビニルブチラ
ール等が挙げられる。Examples of the vinyl acetate type resin include vinyl acetate resin, polyvinyl acetoacetal, polyvinyl butyral, and the like.
前記ポリスチレンの共重合樹脂としては、たとえば、Ａ
ＢＳ樹脂、ＳＡＮ樹脂、ＡＣ３樹脂等が挙げられる。As the polystyrene copolymer resin, for example, A
Examples include BS resin, SAN resin, AC3 resin, and the like.
ポリアミド系樹脂としては、たとえばナイロン６、ナイ
ロン８、ナイロン１１、ナイロン６６、ナイロン６１０
等が挙げられる。Examples of polyamide resins include nylon 6, nylon 8, nylon 11, nylon 66, and nylon 610.
etc.
前記ポリアセタール等は、単一重合体であっても共重合
体であってもよい。The polyacetal and the like may be a single polymer or a copolymer.
前記ポリカーボネートとしては、たとえば、ビスフェノ
ールＡとホスゲンとから得られるポリカーボネート、ビ
スフェノールＡとジフェニルカーボネートとから得られ
るポリカーボネート等が挙げられる。Examples of the polycarbonate include polycarbonate obtained from bisphenol A and phosgene, polycarbonate obtained from bisphenol A and diphenyl carbonate, and the like.
前記熱可塑性ポリエステル樹脂としては、例えば、ポリ
エチレンテレフタレート、ポリプロピレンテレフタレー
ト等が挙げられる。Examples of the thermoplastic polyester resin include polyethylene terephthalate, polypropylene terephthalate, and the like.
前熱可塑性樹脂は、成形可能な分子量を有していれば、
前記各種の熱可塑性樹脂を適宜に選択して使用すること
ができる。前記各種の熱可塑性樹脂を単独で用いても良
いし、また、２種以上を混合してポリマーブレンドとし
て用いても良い。もつとも、前記各種の熱可塑性樹脂の
中でも、ポリエチレン、ボリア０ピレン、プロピレンブ
ロックポリマー、ランダムポリプロピレン等のポリオレ
フィンが好ましい。If the pre-thermoplastic resin has a moldable molecular weight,
The various thermoplastic resins mentioned above can be appropriately selected and used. The above various thermoplastic resins may be used alone, or two or more types may be mixed and used as a polymer blend. Of the various thermoplastic resins mentioned above, polyolefins such as polyethylene, boria pyrene, propylene block polymers, and random polypropylene are preferred.
本発明に用いるガラス繊維マットは、ガラス繊維をマッ
ト状あるいはシート状に形成したものである。The glass fiber mat used in the present invention is formed by forming glass fibers into a mat shape or a sheet shape.
前記ガラス繊維は、その材質として特に制限がなく、含
アルカリガラス、低アルカリガラス、無アルカリガラス
のいずれでも良く、Ｅガラス、Ｃガラス、Ａガラス等従
来からガラス繊維として使用されている各種の組成のも
のを使用することができる。The material of the glass fiber is not particularly limited, and may be any of alkali-containing glass, low-alkali glass, and alkali-free glass, and various compositions conventionally used as glass fibers such as E glass, C glass, and A glass. can be used.
繊維長からすると、連続繊維及び切断繊維のいずれをも
使用することができるのであるか、好ましいガラス繊維
は、その繊維径が５〜３６μｍ１好ましくは１１〜２５
μｍ、さらに好ましくは、１５〜２３μｍであり、その
平均繊維長が１０ｍｍ以上、特に５０ｍｍ以上が好まし
い。Considering the fiber length, both continuous fibers and cut fibers can be used, and the preferable glass fibers have a fiber diameter of 5 to 36 μm, preferably 11 to 25 μm.
μm, more preferably 15 to 23 μm, and the average fiber length is preferably 10 mm or more, particularly 50 mm or more.
本発明におけるガラス繊維マットは、その形態上マット
状あるいはシート状に形成しているものであればどのよ
うなものでも使用することができる。具体的には、スワ
ール（渦巻状）マット、長繊維ガラスを加工したクロス
、長繊維ロービングを加工したチョツプドストランドマ
ットおよびロービングクロス、短繊維ガラスのステープ
ル糸で加工したクロス、短繊維ガラス綿で加工したフェ
ルトおよびブランケットなど、あるいはニードルパンチ
ングマット、一方向引き揃えマットなどが挙げられる。The glass fiber mat in the present invention can be of any type as long as it is in the form of a mat or a sheet. Specifically, swirl mats, cloth processed with long fiber glass, chopped strand mats and roving cloth processed with long fiber roving, cloth processed with short fiber glass staple yarn, and short fiber glass cotton. Examples include felts and blankets processed with polyurethane, needle-punched mats, and unidirectionally aligned mats.
これらの中でも、スワールマットが特に好ましく、特に
連続ガラス繊維のスワール状マットをニードルパンチし
たガラス繊維マットが好ましい。Among these, swirl mats are particularly preferred, and glass fiber mats obtained by needle-punching swirl mats of continuous glass fibers are particularly preferred.
本発明のコンクリート打込用型枠は、熱可塑性性樹脂板
原材料とガラス繊維マットをシート状に成形しておき、
これをプレス成形して製造する。The formwork for concrete pouring of the present invention is made by forming a thermoplastic resin plate raw material and a glass fiber mat into a sheet shape,
This is manufactured by press molding.
例えば、熱可塑性樹脂板上に長繊維マットをおき、その
上にざらに熱可塑性樹脂板をのせ、加熱下にプレスして
製造する。For example, a long fiber mat is placed on a thermoplastic resin plate, the thermoplastic resin plate is roughly placed on top of the long fiber mat, and the mat is pressed under heat.
本発明のガラス繊維マットとしては、ガラスファイバー
ストランドをスワール状に集綿し、針打ちして製造した
針打ちガラス繊維マットを用いると良好なものが得られ
る。A good glass fiber mat of the present invention can be obtained by using a needle-punched glass fiber mat produced by collecting glass fiber strands in a swirl shape and needle-punching them.
本発明に用いるガラス繊維入り樹脂板材の製造は、複数
の樹脂板原材料を溶融してガラス繊維マットを積層し、
溶融加圧して樹脂を該ガラス繊維マットに含浸させ冷却
加圧により固化することにより行うことができる。The glass fiber-containing resin board used in the present invention is manufactured by melting a plurality of resin board raw materials and laminating glass fiber mats.
This can be carried out by impregnating the glass fiber mat with the resin by melting and pressing, and solidifying by cooling and pressing.
加圧成形方法は各種の方法を用いることができ、なかで
もいわゆる、・スタンプ成形は好ましい方法の一つであ
る。Various pressure molding methods can be used, and among them, so-called stamp molding is one of the preferred methods.
型枠の寸法及び構造は、打設時のコンクリートの圧力に
耐え、部分的なへこみを生しることのない、かつ運搬に
際して支障のない重さであるようなものであることが望
ましい。It is desirable that the dimensions and structure of the formwork be such that it can withstand the pressure of concrete during pouring, does not cause local dents, and has a weight that does not pose a problem during transportation.
通常、表板の厚さは、２〜３０ｍｍ、好ましくは４〜５
ｍｍとして製造することができる。縁と中間部には支柱
を入れることが好ましい。支柱の巾は２５〜４０ｍｍ程
度で、厚さは１０〜２０ｍｍ程度のものが好ましい。Usually, the thickness of the top plate is 2 to 30 mm, preferably 4 to 5 mm.
It can be manufactured as mm. It is preferable to include struts at the edges and in the middle. The width of the support column is preferably about 25 to 40 mm, and the thickness is preferably about 10 to 20 mm.
支柱は横は２００ｍｍごとに、縦は３００ ＋ｎｍごと
に入れるのが好ましい。It is preferable to insert struts every 200 mm horizontally and every 300 nm vertically.
全体の大きさは、使用する目的によるが、標準的なもの
としては６００ｍｍＸ１８００ｍｍのものがよい。The overall size depends on the purpose of use, but a standard size is 600 mm x 1800 mm.
また、横方向の中心などにはセパレーション用のボルト
を通す穴を設けるのが望ましい。Further, it is desirable to provide a hole for passing a separation bolt at the center in the lateral direction.
［実施例］ 本発明を実施例によりさらに詳細に説明する。[Example] The present invention will be explained in more detail with reference to Examples.
実施例１
繊維長平均１００ｍｍ、繊維径平均２０μｎ〕、６０本
集束のガラス繊維よりなるマット４０重量％と、ポリプ
ロピレン樹脂板原材料６０重量％を用いて、該樹脂板原
材料の内面を加熱溶融した後、ガラス繊維マットを挟ん
でプレスして厚さ３．８ｍｍのガラス繊維マット入りの
樹脂板材を製造した。Example 1 Using 40% by weight of a mat made of 60 glass fibers with an average fiber length of 100 mm and an average fiber diameter of 20 μn, and 60% by weight of a raw material for a polypropylene resin board, the inner surface of the raw material for the resin board was heated and melted. A glass fiber mat-containing resin plate having a thickness of 3.8 mm was produced by sandwiching and pressing the glass fiber mat.
この樹脂板材を加熱し半溶融状態とし、型枠金型に導入
しスタンピング成形して型枠を成形した。This resin plate material was heated to a semi-molten state, introduced into a mold and stamped to form a mold.
第１図及び第２図に示した形状のコンクリート打込用型
枠を製造した。A concrete pouring form having the shape shown in FIGS. 1 and 2 was manufactured.
この型枠は、裏面に第１図のようなリブを設けて、形状
の安定と強度の向上を図っている。中心のリブに設けた
セパレート孔４はコンクリート打込のときに間隔を固定
する鉄線を止めるためのものである。This formwork is provided with ribs as shown in Figure 1 on the back surface to stabilize the shape and improve strength. Separate holes 4 provided in the center rib are used to hold the iron wire that fixes the spacing during concrete pouring.
また、比較のために、従来の合板製、鉄製及びガラス繊
維入り熱硬化性樹脂（ＦＲＰ）製の同し形状のコンクリ
ート打込用型枠を製造した。For comparison, conventional forms for concrete pouring of the same shape made of plywood, iron, and glass fiber-filled thermosetting resin (FRP) were manufactured.
結果を第１表に示す。The results are shown in Table 1.
（以下余白）
Ｉ
第 １
表
実施例２
２枚の厚さ１ｍｍの長尺の表面シートを重ね合わせて送
り出しなから該２枚のシートの間に２層のカラス繊維マ
ットを同方向に送り出し、さらに該２層のカラス繊維マ
ットの間に押し出しグイから溶融樹脂を連続的に射出し
、このように形成された連続的に移動する積層ソートの
上下から、この移動に同調させたスチールベルトにより
連続的にプレスし、ガラス積層マットに溶融樹脂を含浸
圧縮し、ガラス繊維マット入り樹脂中間板材を製造した
。(Margin below) I Table 1 Example 2 Two long top sheets with a thickness of 1 mm are stacked and fed out, and two layers of glass fiber mats are fed out in the same direction between the two sheets. Furthermore, molten resin is continuously injected from an extrusion goo between the two layers of glass fiber mats, and a steel belt synchronized with this movement is used to continuously inject the molten resin from above and below the continuously moving laminated sort formed in this way. The laminated glass mat was impregnated with molten resin and compressed to produce a resin intermediate board material containing glass fiber mat.
この板材を所望の寸法に切断して、これを２枚重合して
実施例１と同様の操作によりスタンピング成形して型枠
を製造した。This plate material was cut into desired dimensions, two sheets were polymerized, and stamping was performed in the same manner as in Example 1 to produce a mold.
［発明の効果］
本発明のコンクリート打込用型枠は、離型性がよく、軽
くて丈夫で、形状安定性も良好であり、反復使用に耐え
、耐用期間が長い。反りが少ない上、錆びない利点があ
る。そして本発明製造方法によって簡単な工程により、
短い成形時間によつて製造することができる利点がある
。[Effects of the Invention] The concrete casting form of the present invention has good mold releasability, is light and strong, has good shape stability, can withstand repeated use, and has a long service life. It has the advantage of being less warped and not rusting. Then, through a simple process using the manufacturing method of the present invention,
It has the advantage that it can be manufactured in a short molding time.
第１図は本発明の実施例のコンクリート打込用型枠の底
面図であり、第２図はその断面図である。
図中の符号は、ｌ：型枠コンクリート打設面、２：型枠
裏面、３：裏面リブ、４：セパレート穴、５：釘孔であ
る。
特許出願人 出光エヌエスジー株式会社城山興産株式会
社
代
理
人FIG. 1 is a bottom view of a concrete pouring form according to an embodiment of the present invention, and FIG. 2 is a sectional view thereof. The symbols in the figure are 1: formwork concrete casting surface, 2: formwork back surface, 3: back surface rib, 4: separate hole, 5: nail hole. Patent applicant: Idemitsu NSG Co., Ltd. Shiroyama Kosan Co., Ltd. Agent
Claims (1)
ス繊維マット５０〜１０重量パーセントを含有するプレ
ス成形シートよりなるコンクリート打込用型枠。 ２ 樹脂板材製品の表面を形成すべき２枚の樹脂板原材
料樹脂の軟化温度よりも高い温度に加熱して、該２枚の
樹脂板原材料の間にガラス繊維マットを挟んで重ね合わ
せ、加熱溶融樹脂を該ガラス繊維マットに浸透させてプ
レスし、該２枚の樹脂板原材料及びガラス繊維マットを
一体的に融着接合せしめ、ついで樹脂の軟化温度よりも
低い温度に冷却してガラス繊維マット入り樹脂板材を形
成し、次いで該樹脂板材を加熱して軟化せしめた後所定
の形状にプレス成形することを特徴とするコンクリート
打込用型枠の製造方法。[Scope of Claims] 1. A formwork for concrete pouring comprising a press-formed sheet containing 50 to 10 weight percent of a glass fiber mat in 50 to 90 weight percent of a thermoplastic resin. 2 Heat the two resin plate raw materials that are to form the surface of the resin plate product to a temperature higher than the softening temperature of the resin, overlap the two resin plate raw materials with a glass fiber mat sandwiched between them, and heat and melt. The resin is infiltrated into the glass fiber mat and pressed, the two resin plate raw materials and the glass fiber mat are integrally fused and bonded, and then cooled to a temperature lower than the softening temperature of the resin and inserted into the glass fiber mat. 1. A method of manufacturing a formwork for concrete pouring, which comprises forming a resin plate, then heating the resin plate to soften it, and then press-molding it into a predetermined shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4188588A JPH028459A (en) | 1988-02-26 | 1988-02-26 | Form for concrete placing and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4188588A JPH028459A (en) | 1988-02-26 | 1988-02-26 | Form for concrete placing and its manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH028459A true JPH028459A (en) | 1990-01-11 |
Family
ID=12620732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4188588A Pending JPH028459A (en) | 1988-02-26 | 1988-02-26 | Form for concrete placing and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH028459A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0533483A (en) * | 1991-08-01 | 1993-02-09 | Shigeki Kanao | Form |
| WO1994009227A1 (en) * | 1992-10-14 | 1994-04-28 | Sumitomo Chemical Company, Limited | Concrete form made of thermoplastic resin |
| JPH06129094A (en) * | 1992-10-14 | 1994-05-10 | Sumitomo Chem Co Ltd | Thermoplastic resin form for concrete |
| JPH0651395U (en) * | 1992-12-24 | 1994-07-12 | 城山興産株式会社 | Formwork for concrete driving |
| WO1994020704A1 (en) * | 1993-03-03 | 1994-09-15 | Sumitomo Chemical Company, Limited | Water-permeable concrete formwork |
| EP0623434A1 (en) * | 1993-04-28 | 1994-11-09 | Sumitomo Chemical Company, Limited | See-through concrete form |
| EP0623435A1 (en) * | 1993-04-30 | 1994-11-09 | Sumitomo Chemical Company, Limited | Process for producing concrete form made of thermoplastic resin |
| JPH0842134A (en) * | 1994-07-26 | 1996-02-13 | Asahi Fiber Glass Co Ltd | Fiber reinforced thermoplastic resin sheet and concrete placing form using same sheet |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61188104A (en) * | 1985-02-15 | 1986-08-21 | 昭和電工株式会社 | Formwork for concrete |
| JPS6240142B2 (en) * | 1978-07-24 | 1987-08-26 | Nyuu Emu Pii Ai Inc |
-
1988
- 1988-02-26 JP JP4188588A patent/JPH028459A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6240142B2 (en) * | 1978-07-24 | 1987-08-26 | Nyuu Emu Pii Ai Inc | |
| JPS61188104A (en) * | 1985-02-15 | 1986-08-21 | 昭和電工株式会社 | Formwork for concrete |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0533483A (en) * | 1991-08-01 | 1993-02-09 | Shigeki Kanao | Form |
| WO1994009227A1 (en) * | 1992-10-14 | 1994-04-28 | Sumitomo Chemical Company, Limited | Concrete form made of thermoplastic resin |
| JPH06129094A (en) * | 1992-10-14 | 1994-05-10 | Sumitomo Chem Co Ltd | Thermoplastic resin form for concrete |
| KR100308440B1 (en) * | 1992-10-14 | 2001-12-01 | 고사이 아끼오 | Concrete mold made of thermoplastic resin |
| JPH0651395U (en) * | 1992-12-24 | 1994-07-12 | 城山興産株式会社 | Formwork for concrete driving |
| WO1994020704A1 (en) * | 1993-03-03 | 1994-09-15 | Sumitomo Chemical Company, Limited | Water-permeable concrete formwork |
| EP0623434A1 (en) * | 1993-04-28 | 1994-11-09 | Sumitomo Chemical Company, Limited | See-through concrete form |
| EP0623435A1 (en) * | 1993-04-30 | 1994-11-09 | Sumitomo Chemical Company, Limited | Process for producing concrete form made of thermoplastic resin |
| US5525285A (en) * | 1993-04-30 | 1996-06-11 | Sumitomo Chemical Company, Limited | Process for producing concrete form made of thermoplastic resin |
| JPH0842134A (en) * | 1994-07-26 | 1996-02-13 | Asahi Fiber Glass Co Ltd | Fiber reinforced thermoplastic resin sheet and concrete placing form using same sheet |
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