JPH0242326B2 - - Google Patents
Info
- Publication number
- JPH0242326B2 JPH0242326B2 JP59214990A JP21499084A JPH0242326B2 JP H0242326 B2 JPH0242326 B2 JP H0242326B2 JP 59214990 A JP59214990 A JP 59214990A JP 21499084 A JP21499084 A JP 21499084A JP H0242326 B2 JPH0242326 B2 JP H0242326B2
- Authority
- JP
- Japan
- Prior art keywords
- polymer
- resin
- composite panel
- cement mortar
- cement
- 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 - Lifetime
Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 37
- 239000011433 polymer cement mortar Substances 0.000 claims description 27
- 238000009415 formwork Methods 0.000 claims description 23
- 239000010410 layer Substances 0.000 claims description 18
- 239000004568 cement Substances 0.000 claims description 13
- 229920000642 polymer Polymers 0.000 claims description 13
- 239000004576 sand Substances 0.000 claims description 13
- 239000000377 silicon dioxide Substances 0.000 claims description 12
- 239000011083 cement mortar Substances 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 10
- 239000012779 reinforcing material Substances 0.000 claims description 10
- 239000002893 slag Substances 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 239000004005 microsphere Substances 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000011810 insulating material Substances 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 229920001059 synthetic polymer Polymers 0.000 claims description 6
- 229920003086 cellulose ether Polymers 0.000 claims description 5
- 229920000126 latex Polymers 0.000 claims description 5
- 239000004816 latex Substances 0.000 claims description 5
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 5
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 4
- 229920006248 expandable polystyrene Polymers 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- 239000011490 mineral wool Substances 0.000 claims description 4
- 239000002344 surface layer Substances 0.000 claims description 4
- 229920000178 Acrylic resin Polymers 0.000 claims description 3
- 239000004925 Acrylic resin Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000004815 dispersion polymer Substances 0.000 claims description 3
- 229920001225 polyester resin Polymers 0.000 claims description 3
- 239000004645 polyester resin Substances 0.000 claims description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000005977 Ethylene Substances 0.000 claims description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 2
- 229920006243 acrylic copolymer Polymers 0.000 claims description 2
- 229920006026 co-polymeric resin Polymers 0.000 claims description 2
- 239000006185 dispersion Substances 0.000 claims description 2
- 239000000839 emulsion Substances 0.000 claims description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 2
- 239000011491 glass wool Substances 0.000 claims description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 2
- 229920002050 silicone resin Polymers 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 229920003002 synthetic resin Polymers 0.000 claims description 2
- 239000000057 synthetic resin Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims 2
- 229910052751 metal Inorganic materials 0.000 claims 2
- 229910001220 stainless steel Inorganic materials 0.000 claims 1
- 239000010935 stainless steel Substances 0.000 claims 1
- 239000004570 mortar (masonry) Substances 0.000 description 9
- 239000000203 mixture Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000005452 bending Methods 0.000 description 6
- 238000005336 cracking Methods 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000012774 insulation material Substances 0.000 description 4
- 238000004078 waterproofing Methods 0.000 description 4
- 239000011398 Portland cement Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000004794 expanded polystyrene Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000002174 Styrene-butadiene Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000011115 styrene butadiene Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 206010040844 Skin exfoliation Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011414 polymer cement Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Moulds, Cores, Or Mandrels (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
（産業上の利用分野）
この発明は、コンクリート構造物を構築する際
に用いる複合パネル捨て型枠に関するものであつ
て、土木および建築の産業分野に属する。
（従来の技術）
従来捨て型枠としては、補強材入りセメントモ
ルタル板（グラスフアイバー強化セメントモルタ
ル、スチールフアイバー強化セメントモルタル）
が知られており、セメントと合成高分子混和剤お
よび硅砂、高炉水砕スラグ、微小中空球状体およ
び／または微小球状体よりなる混合骨材を混入し
て得たポリマーセメントモルタルとしては厚塗り
モルタル組成物がある（特願昭58−88283号）。
（発明の解決すべき問題点）
然るに従来の捨て型枠は、普通セメントモルタ
ル板である為に重量が大きくなつて、工事現場に
おける搬送及び組立て等の作業性が悪く、断熱性
が小さく、外力に対してひびわれ、欠損を生じ易
く、断熱材を層着する場合には接着力が小さいの
で、アンカーを必須要件とし、かつ製造時に表面
仕上り性およびワーカービイリテイーが悪いなど
の問題点があつた。
然して先願に係る厚塗りモルタルは、一度に塗
着できるモルタル層の厚さ（例えば20mm以上）が
大きいことが特徴とされているが、この発明はモ
ルタル層の厚さを問題とするものでなく、複合パ
ネル捨て型枠を問題としているので、技術思想を
異にしているということができる。
（問題点を解決する為の手段）
この発明は、セメントと合成高分子混和剤およ
び硅砂、高炉水砕スラグ、無機質の微小中空球状
体および／または微小球状体よりなる混合骨材を
混合して得た接着力の大きいポリマーセメントモ
ルタルを補強材介在のもとに断熱材へ層着したの
で、断熱材とポリマーセメントモルタルとは堅固
に接着すると共に、可撓性および衝撃吸収性があ
つて、ひびわれ又は欠損のおそれなく、高炉水砕
スラグ、硅砂および微小中空球状体および／また
は微小球状体などの混合骨材を用いたので、ワー
カービイリテイーがきわめてよく、又容易に仕上
面の平面性を得ることができるなど、前記従来の
問題点を悉く改善した捨て型枠を得たのである。
然して軽量強靭でかつ断熱性に富み、型枠はそ
のまま優れた内外装材となるので、実用に際して
は型枠の取扱いおよび内外装材の取扱いが共通に
なり、建設時の労力、時間および材料費の節減を
図ることができるなどの利点がある。
また前記ポリマーセメントモルタル層の表面ま
たは表層へ、防水剤を被覆または浸透させること
によつて、防水剤を著しく向上させることは勿
論、表面化粧と補強を兼ね、耐候性を向上するな
ど、捨て型枠としての性能を良好にすることは勿
論、外装材又は内装材としてもその品質を向上す
ることになるのである。また防水剤を被覆浸透さ
せない無処理の表面は吹付け、塗付け、タイル張
り等の仕上げの下地として優れている。
この発明に使用するセメントはポルトランドセ
メント又は混合セメントであつて、各骨材等の結
合材として使用するものである。
次に合成高分子混和剤は、スチレン・ブタジエ
ンゴムラテツクス、アクリル樹脂又はアクリル共
重合樹脂、エチレン・酢酸ビニル共重合樹脂等の
ポリマーデイスパーシヨンおよび／または水溶性
セルロースエーテルであつて、その使用量はセメ
ントに対し、水溶性セルロースエーテルでは固形
分で0.1％〜1.0％、その他のポリマーデイスパー
シヨンでは固形分５％〜15％（重量）とする。ポ
リマー添加効果がポリマーデイスパーシヨンの場
合５％（重量）未満、水溶性セルロースエーテル
の場合0.1％（重量）未満では不十分であり、ま
た夫々が15％を越える、及び１％を越える時、ポ
リマー添加効果がそれ以上に向上するとは認めら
れないのみならず、却してポリマー過多による
種々の悪影響が出るおそれがあるので上限とし
た。
次にこの発明の混合骨材としては、硅砂が20％
〜50％（重量）、高炉水砕スラグが35％〜77％
（重量）、無機質の微小中空球状体および／または
微小球状体が３％〜15％（重量）である。前記骨
材の粒径は３mm以下が好ましく、無機質の微小中
空球状体又は微小球状体としては、ガラス質微小
中空球体、ポゾラン物質球体などがある。
前記混合骨材を前記比率の範囲内で混合し、セ
メントを結合材とし、適量のポリマーを添加すれ
ば、ワーカービイリテイーがよく、表面仕上性が
よく、欠損、ひびわれのおそれのないポリマーセ
メントモルタル層ができる。
この発明に用いる補強材としては、ポリマーセ
メントモルタルに混合するものとして、カーボン
フアイバー、スチールフアイバー、グラスフアイ
バー、合成繊維などの繊維が考えられ、断熱材へ
張設する補強材としては、メツシユ又は孔開きシ
ートがある。これらのメツシユ又は孔開きシート
は銅、スチール、又はスチレンススチール或いは
合成樹脂であつてもよく、要はポリマーセメント
モルタルと一体化して、強度を増強する為に介装
するものである。
次に、ポリマーセメントモルタル層の表面又は
表層へ、防水層を被覆又は浸透させて捨て型枠と
する場合があるが、この場合の防水層はポリエス
テル系樹脂、アクリル系樹脂、スチレン・ブタジ
エンゴムラテツクス、シリコン系樹脂、スチレン
系樹脂、エチレン・酢酸ビニル共重合樹脂又はカ
ルビノール系樹脂のエマルジヨン又は溶剤タイプ
などがある。
更に断熱材としては、発泡ポリスチレン、発泡
塩化ビニール、発泡ウレタン、発泡フエノール、
ロツクウール、ミネラルウール又はグラスウール
板などがあり、軽量で断燃性に富み、不燃性であ
れば更に好ましい。
（発明の作用）
この発明によれば、軽量の断熱材へ補強材介在
のもとに軽量のポリマーセメントモルタルを層着
して型枠を構成したので、全体がきわめて軽量で
あり（例えば厚さ30cm、長さ2.8ｍ、幅0.9ｍで45
Kg以下）、取扱いも容易である。またポリマーセ
メントモルタルであるから、性質の異なる断熱材
に層着しても接着力が強く、剥離のおそれがなく
（アンカーを設ける場合があつても普通セメント
モルタルに比し、アンカーが少数でよいことは勿
論である）、欠損又はひびわれを生じるおそれも
ない。またポリマーセメントモルタルを層着する
際の仕上げ平面性がよく、ワーカービイリテイー
もきわめて良好であり、層着後、硬化前に移動し
てもずり下がるおそれはない。
（実施例）
次にこの発明の各種比較試験例を説明する。
(1) ポリマーセメントモルタルの成分および特性
この発明のポリマーセメントモルタルの特性
を表−１の調合を用いて試験した結果、表−２
の結果を得た。比較試験体として、ポリマー無
混入の硅砂のみを骨材として普通セメントモル
タル及びポリマー混入の硅砂のみを骨材とした
ポリマーセメントモルタルを同時に試験した。
使用ポリマーはスチレン・ブタジエンゴムラテ
ツクスであつた。いずれもセメント：砂＝１：
1.5および１：2.0（容積）である。
この発明のポリマーセメントモルタルは、未
だ固まらない状態における単位容積質量が他の
モルタルに比し、非常に軽量であつた。気乾比
重も非常に軽量であつた。吸水率は普通ポリマ
ーセメントモルタルに比し、大きい値であるか
ら、ポリマー混入のモルタルは吸水率が12％以
下であれば、防水性は認められる。熱伝導率は
非常に小さい値を示し、断熱効果に優れてい
た。曲げ強度は普通セメントモルタルと同程度
であるが、圧縮強度が低いので脆度係数が小さ
く、脆弱でないためにこの発明の捨て型枠用に
適している。軽量なので曲げ強度についての比
強度は大きく、脆くないことと共に、可撓性を
示しており、他のセメントモルタルに比し、こ
の発明の捨て型枠用に適する。
メツシユ又は孔開きシートを補強材として用
いれば、更に曲げ撓み性に優れるし、防水剤を
表面又は表層で被覆又は浸透させれば、吸水率
は十分に小さくすることができる。硅砂などの
堅牢な普通骨材を用いたセメントモルタルは硬
く、強く、脆いので、銅製の補強材を用いる
と、銅の引張強度が鋼に比べて小さいために、
曲げ荷重下において銅のメツシユは延びてしま
い、普通のモルタルにとつては補強の効果がな
く、モルタルにひびわれが入つてしまう。
これに対し、この発明のポリマーセメントモ
ルタルは、可撓性に優れ、圧縮強度も小さく、
銅の曲げ荷重下における延びに追従し、銅の引
張抵抗とバランスをもつて曲げ変形するので、
ひびわれも入りにくく、捨て型枠の搬送、組立
て中の曲げ荷重や衝撃荷重に対して十分に撓
み、欠損やひびわれを生じにくいのが特徴であ
る。鋼製のメツシユを用いても補強効果は十分
である。ポリマーの混入及び高炉水砕スラグの
使用で、本発明のポリマーセメントモルタル
は、補強材との付着効果が増大し、両者の一体
化が確実となる。
(Industrial Application Field) The present invention relates to a composite panel disposable formwork used when constructing a concrete structure, and belongs to the industrial field of civil engineering and architecture. (Conventional technology) Conventional disposable formworks include cement mortar boards with reinforcing materials (glass fiber reinforced cement mortar, steel fiber reinforced cement mortar)
Thick coating mortar is a polymer cement mortar obtained by mixing cement with a synthetic polymer admixture and a mixed aggregate consisting of silica sand, granulated blast furnace slag, micro hollow spheres and/or micro spheres. There is a composition (Japanese Patent Application No. 58-88283). (Problems to be solved by the invention) However, since conventional disposable formwork is made of ordinary cement mortar boards, it is heavy, difficult to transport and assemble at construction sites, has low insulation properties, and is susceptible to external forces. It is easy to crack and chip, and when layering insulation material, the adhesive force is low, so anchors are required, and there are problems during manufacturing, such as poor surface finish and poor workability. Ta. However, the thick-coated mortar according to the prior application is characterized by the large thickness of the mortar layer that can be applied at one time (for example, 20 mm or more), but this invention does not address the issue of the thickness of the mortar layer. Rather, the issue is composite panel disposable formwork, so it can be said that the technical philosophy is different. (Means for Solving the Problems) This invention consists of mixing cement, a synthetic polymer admixture, silica sand, granulated blast furnace slag, and a mixed aggregate consisting of inorganic micro hollow spheres and/or micro spheres. The obtained polymer cement mortar with high adhesive strength was layered on the heat insulating material with a reinforcing material interposed, so that the heat insulating material and the polymer cement mortar were firmly bonded, and had flexibility and shock absorbing properties. Since mixed aggregates such as granulated blast furnace slag, silica sand, and micro hollow spheres and/or micro spheres are used without fear of cracking or chipping, workability is extremely good and the flatness of the finished surface can be easily improved. We have obtained a disposable formwork that has improved all the problems of the conventional method, such as being able to obtain the following. However, the formwork is lightweight, strong, and highly insulating, and can be used as an excellent interior and exterior material, so in practical use, the handling of the formwork and the interior and exterior materials are common, reducing labor, time, and material costs during construction. This has the advantage of being able to reduce costs. In addition, by coating or penetrating the surface or surface layer of the polymer cement mortar layer with a waterproofing agent, it is possible to not only significantly improve the waterproofing agent, but also to serve as surface decoration and reinforcement, and to improve weather resistance. Not only does it improve its performance as a frame, but it also improves its quality as an exterior or interior material. In addition, the untreated surface, which does not allow the penetration of waterproofing agents, is an excellent base for finishing such as spraying, painting, and tiling. The cement used in this invention is Portland cement or mixed cement, and is used as a binding material for various aggregates and the like. Next, the synthetic polymer admixture is a polymer dispersion such as styrene-butadiene rubber latex, acrylic resin or acrylic copolymer resin, ethylene-vinyl acetate copolymer resin, and/or water-soluble cellulose ether, and its use The amount is 0.1% to 1.0% solids for water-soluble cellulose ether, and 5% to 15% solids (by weight) for other polymer dispersions, based on cement. When the polymer addition effect is less than 5% (weight) for polymer dispersion and less than 0.1% (weight) for water-soluble cellulose ether, it is insufficient, and when it exceeds 15% and 1%, respectively, The upper limit was set because not only was it not recognized that the effect of adding polymer would be further improved, but also there was a risk that various adverse effects would occur due to too much polymer. Next, the mixed aggregate of this invention contains 20% silica sand.
~50% (by weight), 35% to 77% granulated blast furnace slag
(by weight) and 3% to 15% (by weight) of inorganic micro hollow spheres and/or microspheres. The particle size of the aggregate is preferably 3 mm or less, and examples of the inorganic micro hollow spheres or micro spheres include glassy micro hollow spheres and pozzolanic substance spheres. By mixing the above-mentioned mixed aggregate within the above-mentioned ratio range, using cement as a binder, and adding an appropriate amount of polymer, a polymer cement with good workability, good surface finish, and no fear of chipping or cracking can be obtained. A layer of mortar is formed. As the reinforcing material used in this invention, fibers such as carbon fiber, steel fiber, glass fiber, and synthetic fiber can be considered as those to be mixed into the polymer cement mortar.As the reinforcing material to be stretched over the insulation material, mesh or hole There is a spread sheet. These meshes or perforated sheets may be made of copper, steel, styrene steel, or synthetic resin, and are essentially integrated with the polymer cement mortar and interposed to increase strength. Next, a waterproof layer may be coated or infiltrated onto the surface or surface layer of the polymer cement mortar layer to form a disposable formwork. Examples include emulsions or solvent types of Tx, silicone resin, styrene resin, ethylene/vinyl acetate copolymer resin, or carbinol resin. Furthermore, as insulation materials, foamed polystyrene, foamed vinyl chloride, foamed urethane, foamed phenol,
Rock wool, mineral wool, glass wool plates, etc. are available, and it is more preferable if they are lightweight, highly flame-insulating, and non-combustible. (Function of the invention) According to the present invention, the formwork is constructed by layering lightweight polymer cement mortar on a lightweight heat insulating material with reinforcing material interposed, so the entire formwork is extremely lightweight (for example, the thickness is 45 at 30cm, length 2.8m, width 0.9m
kg or less) and easy to handle. In addition, since it is a polymer cement mortar, it has strong adhesion even when layered on insulation materials with different properties, and there is no risk of peeling (even if anchors are provided, fewer anchors are required compared to ordinary cement mortar). Of course, there is no risk of chipping or cracking. In addition, the finished flatness when layering polymer cement mortar is good, and the workability is also very good, and there is no risk of it slipping down even if it is moved after layering and before hardening. (Example) Next, various comparative test examples of this invention will be explained. (1) Components and properties of polymer cement mortar The properties of the polymer cement mortar of the present invention were tested using the formulation shown in Table 1. Table 2
The results were obtained. As comparative test specimens, ordinary cement mortar using only silica sand without polymer as an aggregate and polymer cement mortar using only silica sand containing polymer as aggregate were simultaneously tested.
The polymer used was styrene-butadiene rubber latex. In both cases, cement: sand = 1:
1.5 and 1:2.0 (volume). The polymer cement mortar of the present invention had a unit volume mass in an unhardened state that was extremely light compared to other mortars. The air-dried specific gravity was also very light. Since the water absorption rate is higher than that of ordinary polymer cement mortar, polymer-containing mortar is considered waterproof as long as the water absorption rate is 12% or less. The thermal conductivity showed a very small value, and the insulation effect was excellent. Although its bending strength is comparable to that of ordinary cement mortar, its compressive strength is low, so its brittleness coefficient is small, and it is not brittle, making it suitable for the disposable formwork of this invention. Since it is lightweight, it has a high specific strength in terms of bending strength, is not brittle, and exhibits flexibility, making it more suitable for the disposable formwork of this invention than other cement mortars. If a mesh or perforated sheet is used as a reinforcing material, the material will have even better bending flexibility, and if the surface or surface layer is coated with or penetrated with a waterproofing agent, the water absorption rate can be sufficiently reduced. Cement mortar made of solid ordinary aggregates such as silica sand is hard, strong, and brittle, so if copper reinforcement is used, the tensile strength of copper is lower than that of steel.
Under bending loads, the copper mesh stretches and has no reinforcing effect on ordinary mortar, resulting in cracks in the mortar. In contrast, the polymer cement mortar of this invention has excellent flexibility and low compressive strength.
It follows the elongation of copper under bending load and bends and deforms in balance with the tensile resistance of copper.
It is characterized by being resistant to cracking, flexing sufficiently against bending loads and impact loads during transportation and assembly of disposable formwork, and resistant to breakage and cracking. Even if a steel mesh is used, the reinforcing effect is sufficient. By incorporating a polymer and using granulated blast furnace slag, the polymer cement mortar of the present invention has an increased adhesion effect with the reinforcing material, and the integration of the two is ensured.
【表】【table】
【表】 (2) 防水層を設けた場合の特性。【table】 (2) Characteristics when a waterproof layer is provided.
【表】【table】
【表】
（実施例）
(1) 普通ポルトランドセメントと骨材とを１：
1.5の割合（容積）に混合する。前記骨材は硅
砂45％（重量）、高炉水砕スラグの50％（重
量）、微小中空球状体５％（重量）混合物であ
る。前記混合物に前記セメントの７％量のポリ
マー（スチレン・ブタジエンラテツクス）を混
入してなるポリマーセメントモルタル層２を発
泡ポリスチレン板１の表面へ層着すれば、この
発明の型枠ができ上がる。この場合に、発泡ポ
リスチレン板１の表面には孔開き銅シーナ３が
張設してあり、発泡ポリスチレン板１とポリマ
ーセメントモルタル層２とを堅固に一体化して
いる。
(3) 普通ポルトランドセメントと骨材とを１：
1.5の割合（容積）に混合する。前記材は硅砂
45％（重量）、高炉水砕スラグ50％（重量）、微
小中空球状体５％（重量）の混合物である。前
記混合物に前記セメントの７％量のポリマー
（スチレン・ブタジエンラテツクス）を混入し
てなるポリマーセメントモルタル層２を発泡ポ
リスチレン板１の表面へ層着すれば、この発明
の型枠ができ上がる。前記ポリマーセメントモ
ルタル層２の表面に変性ポリエステル樹脂層３
を10m2／の割合に塗布し、この発明の捨て型
枠ができる。
（発明の効果）
即ちこの発明によれば、断熱材を層着してある
ので断熱性が大きく、又、このポリマーセメント
モルタル層自体も普通セメントモルタルに比し、
断熱性が大きいので、表面の結露防止性も大きい
などの効果がある。またポリマーセメントモルタ
ル層には可撓性があり、ひびわれ、欠損のおそれ
がなく、衝撃に対して強靭であり、脆度係数が小
さいなどの効果があり、更にその製造に際しては
ワーカービイリテイーが頗るよく、可使用時間も
長く、表面仕上り性が良いので、生産性のよい製
品であり、均質多量生産に適しているなどの効果
もある。又この発明における複合パネルは建物等
の内、外装にも後張りで応用可能である。[Table] (Example) (1) Ordinary Portland cement and aggregate 1:
Mix in proportions (by volume) of 1.5. The aggregate is a mixture of 45% (by weight) silica sand, 50% (by weight) granulated blast furnace slag, and 5% (by weight) micro hollow spheres. The formwork of the present invention is completed by depositing a polymer cement mortar layer 2 on the surface of the expanded polystyrene plate 1, which is made by mixing 7% of the cement with a polymer (styrene-butadiene latex) in the mixture. In this case, a perforated copper seaner 3 is stretched over the surface of the foamed polystyrene board 1 to firmly integrate the foamed polystyrene board 1 and the polymer cement mortar layer 2. (3) Ordinary Portland cement and aggregate 1:
Mix in proportions (by volume) of 1.5. The material is silica sand
It is a mixture of 45% (by weight), 50% (by weight) of granulated blast furnace slag, and 5% (by weight) of micro hollow spheres. The formwork of the present invention is completed by depositing a polymer cement mortar layer 2 on the surface of the expanded polystyrene plate 1, which is made by mixing 7% of the cement with a polymer (styrene-butadiene latex) in the mixture. A modified polyester resin layer 3 is provided on the surface of the polymer cement mortar layer 2.
is applied at a ratio of 10 m 2 / to form the disposable formwork of this invention. (Effects of the Invention) That is, according to the present invention, since the heat insulating material is layered, the heat insulating property is large, and this polymer cement mortar layer itself also has a
Since it has great heat insulation properties, it also has the effect of preventing dew condensation on the surface. In addition, the polymer cement mortar layer is flexible, has no risk of cracking or chipping, is strong against impact, and has a low brittleness coefficient. Because it has a long pot life and a good surface finish, it is a highly productive product and is suitable for homogeneous mass production. Furthermore, the composite panel of the present invention can be applied to the interior and exterior of buildings, etc. as a backing.
第１図はこの発明の実施例の一部拡大断面図、
第２図は同じく他の実施例の一部拡大断面図であ
る。
１……発泡ポリスチレン板、２……ポリマーセ
メントモルタル層、３……変性ポリエステル樹脂
層。
FIG. 1 is a partially enlarged sectional view of an embodiment of the present invention.
FIG. 2 is a partially enlarged sectional view of another embodiment. 1... Expanded polystyrene plate, 2... Polymer cement mortar layer, 3... Modified polyester resin layer.
Claims (1)
炉水砕スラグ、無機質の微小中空球状体および／
または微小球状体よりなる混合骨材を混合して得
たポリマーセメントモルタルであつて、セメント
と混合骨材との比を１：0.5〜１：２とし、混合
骨材相互の割合を、硅砂が20％〜50％（重量）、
高炉水砕スラグが35％〜77％（重量）、無機質の
微小中空球状体および／または微小球状体が３％
〜15％（重量）としこれを補強材介在のもとに断
熱材へ層着したことを特徴とする複合パネル捨て
型枠。 ２ 合成高分子混和剤は、スチレン・ブタジエン
ゴムラテツクス、アクリル樹脂またはアクリル共
重合樹脂、エチレン・酢酸ビニル共重合樹脂等の
ポリマーデイスパーシヨンおよび／または水溶性
セルロースエーテルとし、その使用量はセメント
に対し、水溶性セルロースエーテルでは固形分で
0.1％〜1.0％、その他のポリマーデイスパーシヨ
ンでは固形分で５％〜15％（重量）とした特許請
求の範囲第１項記載の複合パネル捨て型枠。 ３ 補強材は、金属製又は合成樹脂製のメツシユ
又は孔開きシート又はセメントモルタル混入用フ
アイバー類とした特許請求の範囲第１項記載の複
合パネル捨て型枠。 ４ 断熱材は、発泡ポリスチレン、発泡ウレタ
ン、発泡塩化ビニール、発泡フエノール、ロツク
ウール、ミネラルウール又はグラスウール板とし
た特許請求の範囲第１項記載の複合パネル捨て型
枠。 ５ 金属は、銅、スチール又はステンレススチー
ルとした特許請求の範囲第３項記載の複合パネル
捨て型枠。 ６ セメントと合成高分子混和剤および硅砂、高
炉水砕スラグ、無機質の微小中空球状体および／
または微小球状体よりなる混合骨材を混合して得
たポリマーセメントモルタルを、補強材介在のも
とに断熱材へ層着し、前記ポリマーセメントモル
タルの表面又は表層に防水層を設けたことを特徴
とする複合パネル捨て型枠。 ７ 防水層は、ポリエステル系樹脂、アクリル系
樹脂、スチレン系樹脂、エチレン・酢酸ビニル共
重合樹脂又はシリコン系樹脂、カルビノール系樹
脂のエマルジヨンや溶剤に溶したものを被覆含浸
させて設けた特許請求の範囲第６項記載の複合パ
ネル捨て型枠。[Claims] 1. Cement, synthetic polymer admixture, silica sand, granulated blast furnace slag, inorganic micro hollow spheres and/or
Or polymer cement mortar obtained by mixing mixed aggregate consisting of microspheres, in which the ratio of cement and mixed aggregate is 1:0.5 to 1:2, and the ratio of mixed aggregate is silica sand. 20%~50% (weight),
35% to 77% (by weight) of granulated blast furnace slag, 3% of inorganic micro hollow spheres and/or microspheres
Composite panel disposable formwork characterized by ~15% (weight) and layered on a heat insulating material with reinforcing material interposed. 2 The synthetic polymer admixture is a polymer dispersion such as styrene-butadiene rubber latex, acrylic resin or acrylic copolymer resin, ethylene-vinyl acetate copolymer resin, etc., and/or water-soluble cellulose ether, and the amount used is equal to that of cement. In contrast, water-soluble cellulose ether has a solid content of
The composite panel disposable formwork according to claim 1, wherein the solid content is 0.1% to 1.0%, and for other polymer dispersions, the solid content is 5% to 15% (by weight). 3. The composite panel disposable formwork according to claim 1, wherein the reinforcing material is a mesh made of metal or synthetic resin, a perforated sheet, or fibers for mixing with cement mortar. 4. The composite panel disposable formwork according to claim 1, wherein the heat insulating material is foamed polystyrene, foamed urethane, foamed vinyl chloride, foamed phenol, rock wool, mineral wool, or glass wool board. 5. The composite panel disposable formwork according to claim 3, wherein the metal is copper, steel, or stainless steel. 6 Cement, synthetic polymer admixture, silica sand, granulated blast furnace slag, inorganic micro hollow spheres and/or
Alternatively, a polymer cement mortar obtained by mixing mixed aggregate consisting of microspheres is layered on a heat insulating material with a reinforcing material interposed, and a waterproof layer is provided on the surface or surface layer of the polymer cement mortar. Features: Composite panel disposable formwork. 7. A patent claim in which the waterproof layer is provided by coating and impregnating an emulsion of polyester resin, acrylic resin, styrene resin, ethylene/vinyl acetate copolymer resin, silicone resin, or carbinol resin dissolved in a solvent. Composite panel disposable formwork according to item 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21499084A JPS6192809A (en) | 1984-10-13 | 1984-10-13 | Composite-panel throwaway formwork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21499084A JPS6192809A (en) | 1984-10-13 | 1984-10-13 | Composite-panel throwaway formwork |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6192809A JPS6192809A (en) | 1986-05-10 |
| JPH0242326B2 true JPH0242326B2 (en) | 1990-09-21 |
Family
ID=16664871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21499084A Granted JPS6192809A (en) | 1984-10-13 | 1984-10-13 | Composite-panel throwaway formwork |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6192809A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01202432A (en) * | 1988-02-06 | 1989-08-15 | Masao Ose | Nonflammable plastic foam molded product, manufacture thereof and concrete placement form |
| JP2611596B2 (en) * | 1992-01-27 | 1997-05-21 | 東レ株式会社 | Concrete formwork and concrete casting method |
| AU686243B2 (en) * | 1993-10-10 | 1998-02-05 | Ian Conrad Holyoake | Improvements in or relating to preformed building materials |
| JPH10147949A (en) * | 1996-11-18 | 1998-06-02 | Sekishin Sangyo Kk | Refroming method for manhole |
| JP2002146904A (en) * | 2000-11-09 | 2002-05-22 | Toray Ind Inc | Method for reinforcing concrete structure and reinforced concrete structure |
| CN109081652B (en) * | 2018-08-31 | 2021-11-30 | 华北理工大学 | Compression molding rubber iron tailing sand cement board and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS559822A (en) * | 1978-07-07 | 1980-01-24 | Hatsutarou Ogino | Method of making compound reinforced heattinsulating panel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58180034U (en) * | 1982-05-24 | 1983-12-01 | 株式会社東洋パイルヒユ−ム管製作所 | Insulation reinforced cement board |
-
1984
- 1984-10-13 JP JP21499084A patent/JPS6192809A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS559822A (en) * | 1978-07-07 | 1980-01-24 | Hatsutarou Ogino | Method of making compound reinforced heattinsulating panel |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6192809A (en) | 1986-05-10 |
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