JPS6345185A - Inorganic fiber reinforced cement construction material and manufacture - Google Patents
Inorganic fiber reinforced cement construction material and manufactureInfo
- Publication number
- JPS6345185A JPS6345185A JP18823886A JP18823886A JPS6345185A JP S6345185 A JPS6345185 A JP S6345185A JP 18823886 A JP18823886 A JP 18823886A JP 18823886 A JP18823886 A JP 18823886A JP S6345185 A JPS6345185 A JP S6345185A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- cement
- reinforced
- paste
- inorganic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000004568 cement Substances 0.000 title claims description 34
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000012784 inorganic fiber Substances 0.000 title claims description 9
- 239000004035 construction material Substances 0.000 title 1
- 239000000835 fiber Substances 0.000 claims description 32
- 239000004566 building material Substances 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000002270 dispersing agent Substances 0.000 claims description 8
- 239000004088 foaming agent Substances 0.000 claims description 6
- 239000006260 foam Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims 2
- 229910010272 inorganic material Inorganic materials 0.000 claims 1
- 239000011147 inorganic material Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 11
- 239000004917 carbon fiber Substances 0.000 description 11
- 239000007789 gas Substances 0.000 description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 3
- -1 alkyl polyol Chemical class 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229920000609 methyl cellulose Polymers 0.000 description 3
- 239000001923 methylcellulose Substances 0.000 description 3
- 235000010981 methylcellulose Nutrition 0.000 description 3
- 229920005862 polyol Polymers 0.000 description 3
- 229920001184 polypeptide Polymers 0.000 description 3
- 102000004196 processed proteins & peptides Human genes 0.000 description 3
- 108090000765 processed proteins & peptides Proteins 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000007580 dry-mixing Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000011550 stock solution Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 240000005343 Azadirachta indica Species 0.000 description 1
- 235000013500 Melia azadirachta Nutrition 0.000 description 1
- 241001128391 Taia Species 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000011301 petroleum pitch Substances 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Building Environments (AREA)
- Laminated Bodies (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分τテ
この発明は、土木、建築材料その他に用いられる無機Ｘ
ｉａ維強化セメント製建材とその製造方法に賀するもの
である。[Detailed description of the invention] This invention provides inorganic X used for civil engineering, building materials, etc.
This paper introduces IA fiber-reinforced cement building materials and their manufacturing method.
従来の技術
従来、ガラス繊維、炭素繊維、石綿繊維等のｌ１ｌＩ！
醗質７ａ碓は広く建材に用いられているが就中、炭素ｔ
ａ惟は、有機Ｘ繊維にくらべ、引張強度や弾性率が高く
、耐火性、１す熱性、耐アルカリ性に（量れていること
がγ１目され、セメント製建材等の・凡用分野への使用
が期待されている。Conventional technology Conventionally, glass fiber, carbon fiber, asbestos fiber, etc. l1lI!
Alcoholic substance 7a is widely used for building materials, especially carbon t.
Compared to organic Expected to be used.
従来、炭素繊維等の慣ｍ質繊維強化セメント製建材の製
造に際し、炭素ｔａ維等の無機質繊維の分故手設として
、セメントや砂と のドライミキシングが試みられてき
た。In the past, when manufacturing building materials made of inorganic fibers such as carbon fiber reinforced cement, dry mixing with cement or sand has been attempted as a manual method for separating inorganic fibers such as carbon ta fibers.
発明が解決しようとする間」点
しかし、上記ドライミキシングにおいて、細径でしかも
アスペクト比の大きい、惧収束の短い炭素繊維等の燦ｔ
ａ貧繊維を、セメントマトリックス中に均一に分散、混
合させること：よ、繊維とセメントや砂と の比重差が
大きく、しかも摩擦によってｉａ ｉａ相互が互いに絡
みやすい性状のため、満足のゆく分散が得られず、その
多くは、毛玉状となってしまうばかりでなく、製造され
た建材において、結合材としての炭素繊維等の無機Ｘ繊
維の機能を充分に果すことができない。However, in the above-mentioned dry mixing, it is difficult to use carbon fibers with a small diameter, large aspect ratio, and short convergence.
Uniformly dispersing and mixing the poor fibers in the cement matrix: Because there is a large difference in specific gravity between the fibers and cement or sand, and because the fibers tend to get entangled with each other due to friction, it is difficult to achieve a satisfactory dispersion. Many of them not only become fluffy but also fail to fully perform the function of inorganic X-fibers such as carbon fibers as a binding material in manufactured building materials.
又、仮りに炭素繊維等の無機′Ｘ繊維を用いてセメント
製建材を形１唆しても、それは木材のように鋸によフて
容易に切断することができず、又、容易に釘を打ち込む
ことができない、又、鋸で切断できるように形成すると
吸水率が大きくなり、断熱性、遮音性等において劣るも
のとなる。更に、曲げ強度が低いのである。Furthermore, even if inorganic X-fibers such as carbon fibers are used to form cement building materials, they cannot be easily cut with a saw like wood, and they cannot be easily cut with a saw. If it is formed in such a way that it cannot be hammered in or cut with a saw, the water absorption rate will increase, resulting in poor heat insulating properties, sound insulating properties, etc. Furthermore, the bending strength is low.
この発明は、上記のような問題を解決するためになされ
たもので、その目的：よ、汎用ミキサーを使用し、炭＠
繊維等の無機質繊１！１がセメントマトリックス中に充
分均一に分散された、引張強度、弾性率の高い建材を提
供することであり、かつ、その製造方法を）？供するこ
とである。This invention was made to solve the above-mentioned problems, and its purpose: to use a general-purpose mixer to
An object of the present invention is to provide a building material with high tensile strength and elastic modulus in which inorganic fibers such as fibers (1:1) are sufficiently uniformly dispersed in a cement matrix, and a method for manufacturing the same. It is to provide.
そして又、他の目的は、前記炭素繊維等の無機質繊１ｎ
を用い、はぼ木材のように比較的容易に鋸で切断するこ
とができ、又訂を打ち込むことができ、打ち込まれた釘
の発錆が少く、１度の曲げ強度を有し、又吸湿性の少い
、慨ｔａ買繊維強化セメント製建材を）ヱ供することで
あり、かつその製造方法を提供することである。Another purpose is to provide 1n of inorganic fibers such as carbon fibers.
It can be cut with a saw relatively easily like wood, can be hammered in again, has little rust on nails driven into it, has a bending strength of 1 degree, and is moisture absorbent. It is an object of the present invention to provide a fiber-reinforced cement building material that is less resistant and less expensive to purchase, and to provide a method for producing the same.
問題点を解決するための手段
まず、建材について述へると、それは、憚機質ｉａ維、
繊維分散剤、及び多数の独立の気体室を含有するセメン
ト硬化体であることを特徴とする＠機３ｔｉＭ維強化セ
メント製建材である。Means to solve the problem First, when talking about building materials, they are
This is a building material made of @Ki3tiM fiber-reinforced cement, which is characterized by being a hardened cement body containing a fiber dispersant and a large number of independent gas chambers.
又、その製造方法について述べると、それは、所定量の
セメント、ｉａ ｉａ分散剤、及び水をミキサーにより
混合、攪拌し、セメントペーストを形成し、別に起泡剤
溶液を用いて多数の独立の気体室から成る気泡体を形成
し、所定量の該気泡体及び無機質繊維を、前記セメント
ペーストに加え、混合、攪拌し、繊維強化ペーストを形
成し、該繊維強化ペーストを型枠に注入し、硬化後、脱
型することを特徴とするｔＡｉｉ繊維強化セメント製建
材の製造方法である。In addition, the manufacturing method is as follows: A predetermined amount of cement, ia ia dispersant, and water are mixed and stirred by a mixer to form a cement paste, and a large number of independent gases are separately added using a foaming agent solution. A predetermined amount of the bubbles and inorganic fibers are added to the cement paste, mixed and stirred to form a fiber-reinforced paste, and the fiber-reinforced paste is poured into a mold and hardened. This is a method for producing a tAii fiber-reinforced cement building material, which is characterized in that it is then demolded.
作 用
この発明の帷機質１ａ碓強化セメント製建材は、前記の
ように構成されており、無機Ｘ繊維が繊維分散剤により
良好に分散され、さらに均一に分散した無機Ｘ繊維間に
独立気体室が無数に出来るため、有ｔａＸ繊維のように
軽量で、釘を打ち込むこと、あるいは鋸により切断する
ことができ、かつ、引張強度、弾性率が高く、１音性、
断熱性に冨む＊ｍｉ繊維強化セメント製建材が形成され
る。Function: The fabric material 1a reinforced cement building material of the present invention is constructed as described above, in which the inorganic Because it has countless chambers, it is lightweight like TAX fibers, can be cut with a nail or saw, and has high tensile strength and elastic modulus, and is monophonic.
*mi fiber-reinforced cement building materials with high heat insulation properties are formed.
実施例
まず所定量のセメントと繊維分散剤をミキサー内に没入
して、混合、攪拌し、これに所定量の水を加えて更に混
合、攪拌し、セメントペーストを作る。繊維分散剤は一
例としてメチルセルローズ及びシリカフニームが用いら
れた。Example First, a predetermined amount of cement and a fiber dispersant are placed in a mixer, mixed and stirred, and a predetermined amount of water is added thereto and further mixed and stirred to make a cement paste. Methyl cellulose and silica hneem were used as examples of fiber dispersants.
又、この発明で用いられる無機質ｉａ維は一例として炭
素繊維が用いられ、又その炭素繊維：ま、−例として、
石油ピッチを原料として製造されるピッチ系炭素短繊維
である。同繊維は、−例として、５〜２５μｍ程度の極
細のものであり、長さ３〜５０ ｍｍ４呈度のものであ
る。Further, carbon fiber is used as an example of the inorganic IA fiber used in this invention, and the carbon fiber: Well, as an example,
Pitch-based short carbon fiber manufactured using petroleum pitch as a raw material. The fibers are, for example, extremely fine with a diameter of about 5 to 25 μm, a length of 3 to 50 mm, and a diameter of 3 to 50 mm.
次に、上記作業とは（よ平行して、別に起泡剤を水で希
釈して起泡剤の希釈液を製造する。起泡剤は一例として
、米国のマールコーポレーション（ＴｈｅＭＥＡＲＬＣ
ｏｒｐｒａｔｉｏｎ２２０ＷｅｓｅＦｉｅｌｄ。Next, in parallel to the above operation, the foaming agent is separately diluted with water to produce a diluted foaming agent solution.
orpration220WeseField.
Ｒｏｓｓｅｌｌｅ Ｐａｒｋ、 Ｎ、Ｊ、Ａｍｅｒｉｃ
ａｌ製、住友商事株式会社販売代理のポリペプチドアル
キルポリオールの７Ｑｉｉｉ原液（商品名、マールクリ
ート、Ｐ。Rosselle Park, N.J., America
7Qiii stock solution of polypeptide alkyl polyol (trade name, Marcrete, P.
フォームイ夜）が用いられる。formui night) is used.
そして、水に対し、上記ポリペプチドアルキルポリオー
ル４縮原液を重量比で３％程度調合して、希釈液をつく
り、−例として、これを圧力容器内に入れ、この容器内
の圧力を６０ ｐｓｉまで上げた後、この容器内の圧搾
空気と希釈液をパイプにより別々に取出し、上記の王搾
空気と希釈液のそれぞれのパイプを合流させて、これを
同一のノズルから噴射させることによって発泡させ気泡
体を形成する。Then, prepare a diluted solution by mixing about 3% by weight of the above-mentioned polypeptide alkyl polyol 4-condensed stock solution with water, and for example, put this into a pressure vessel and set the pressure inside this vessel to 60 psi. After the air has been raised to 100%, the compressed air and diluted liquid in this container are taken out separately through pipes, and the pipes for the compressed air and diluted liquid are combined, and the air and diluted liquid are injected from the same nozzle to cause foaming. Forms bubbles.
次にミキサー内の前記セメントペースト中に、所定量の
前記気泡体と炭素ｔａ ｉ（ｔを没入し、混合、攪拌す
る。Next, a predetermined amount of the air bubbles and carbon t i (t) are immersed into the cement paste in a mixer, and mixed and stirred.
なお、この気泡体と炭素！ａ維の投入順序はどちらが先
であっても差支えない。In addition, this bubble and carbon! There is no problem in which order the fibers are introduced first.
以上のようにしてｔａ ｉａ強化ペーストが得られる。A taia reinforced paste is obtained in the above manner.
炭素１ｍ ７１強化セメントペーストｔｍ’当つの調合
例を示すと以下のようになる。An example of the preparation of carbon 1m 71 reinforced cement paste tm' is as follows.
セメント ５０７ ｋｇ水
２８５ 〃気泡体
５８７ ｌ
シリカフニーム ２６．３５ｋｇ
メチルセルロース １５２〃
炭素；１ｉ維１３００ツノ
次に、前＝己起イ包斉“］、ポリペプチドアルキルポリ
オール
つぶれにくく安定し、かつ、かさのはるマイクロ形の気
体室を製造することができるもので、この気体室は繊維
強化ペーストに混入した場合、繊維分散剤としても効果
がありＩａｍを傷つけることなく、容易に車ｉａ維状に
解繊させることができ、ｉａ維を混入した繊維強化ペー
ストに良好なウォーカビリティを付与することができる
ので、混練水量の増加による強度低下を防ぐことができ
る。Cement 507 kg water
285 Foam
587 l Silica hneem 26.35kg Methyl cellulose 152〃 Carbon; 1i fiber 1300 horns, 1i fiber 1300 horns, polypeptide alkyl polyol Manufacture a micro-shaped gas chamber that is stable and does not collapse easily and has a large bulk. When this gas chamber is mixed into the fiber reinforced paste, it is also effective as a fiber dispersant and can easily defibrate the IA fibers into IA fibers without damaging the IA fibers. Since good walkability can be imparted to the mixed fiber-reinforced paste, a decrease in strength due to an increase in the amount of kneading water can be prevented.
又、繊維強化ペースト中に混入されると、その内部に強
い皮膜の独立の気体室（いわゆる気泡）ができるため、
吸水率が小さく、遮音性、断熱性に冨む．又、この気体
室は強アルカリ袖である。Also, when mixed into fiber-reinforced paste, independent gas chambers (so-called bubbles) with a strong film are created inside the paste.
It has low water absorption and has excellent sound insulation and heat insulation properties. Moreover, this gas chamber is a strong alkaline sleeve.
炭素繊維をセメンにペーストに混入する場合、同繊維を
車！ａ維に解繊し、いかにセメントペースト内に均一に
分散させることができるかは、困難な問題であるのにも
かかわらず、この発明においては、上記起泡剤を用い、
かつ又繊維分散剤として、メチルセルロース及びシリカ
フニームを用いることにより、それを解決している。When carbon fiber is mixed into cement paste, the same fiber is used in cars! Although it is a difficult problem to defibrate into a-fibers and disperse them uniformly in cement paste, in this invention, using the above-mentioned foaming agent,
Moreover, this problem has been solved by using methylcellulose and silica neem as fiber dispersants.
なお、前記気体室は、１０００分の８ミリ程度のもので
ある。Note that the gas chamber is approximately 8/1000th of a millimeter.
なお、繊維強化ペーストを型枠に注入する曝、分散され
た！ａ維とセメントペーストの複合作用により気体室が
逃げにくく、注入後、沈下は殆んどないのが特徴である
。In addition, when the fiber reinforced paste is injected into the formwork, it is dispersed! Due to the combined action of the a-fiber and cement paste, the gas chamber is difficult to escape, and it is characterized by almost no settling after injection.
なお前記炭素繊維に代えて、ガラス繊維、石ＩＡ繊維等
を用いても差支えないことは勿論である。It goes without saying that glass fiber, stone IA fiber, etc. may be used in place of the carbon fiber.
発明の効果
この発明の建材は、前記のように構成され、独立の気体
室、無機質繊維を用いたことにより、打ち込まれた釘を
固く支持することができ、かつ又、引張強度および弾性
率の高いセメント製建材を提供できる。Effects of the Invention The building material of the present invention is constructed as described above, and by using an independent gas chamber and inorganic fibers, it can firmly support a driven nail, and also has low tensile strength and elastic modulus. We can provide high quality cement building materials.
又、含有される気体室はアルカリ性のため、打ち込まれ
た釘の発錆を少くすることができる．又独立した気体室
を有するため吸水率が少く、遮音性、断熱性に富み、又
鋸により切断でき、不燃性でかつ、耐久性のある建材を
撞儀することができ、又その製造方法を提供することが
できる。Also, since the gas chamber contained in it is alkaline, rusting of nails driven into it can be reduced. In addition, since it has an independent gas chamber, it has low water absorption, has excellent sound insulation and heat insulation properties, can be cut with a saw, is non-flammable, and can be made into durable building materials. can be provided.
代 理 人 井埋士 斎 藤 侑
（ほか２名）Agents: Ibuji, Yu Saifuji (and 2 others)
Claims (1)
を含有するセメント硬化体であることを特徴とする無機
質繊維強化セメント製建材。 ２、所定量のセメント、繊維分散剤、及び水をミキサー
により混合、攪拌し、セメントペーストを形成し、別に
起泡剤溶液を用いて多数の独立の気体室からなる気泡体
を形成し、所定量の該気泡体及び無機質繊維を、前記セ
メントペーストに加え、混合、攪拌し、繊維強化ペース
トを形成し、該繊維強化ペーストを型枠に注入し、硬化
後脱型することを特徴とする無機質繊維強化セメント製
建材の製造方法。 ３、気体室は、アルカリ性であることを特徴とする特許
請求の範囲第１項記載の無機質繊維強化セメント製建材
。 ４、起泡剤はペプチド結合を有することを特徴とする特
許請求の範囲第２項記載の無機質繊維強化セメント製建
材の製造方法。[Scope of Claims] 1. A building material made of inorganic fiber-reinforced cement, characterized in that it is a hardened cement body containing inorganic fibers, a fiber dispersant, and a large number of independent gas chambers. 2. Mix and stir a predetermined amount of cement, fiber dispersant, and water using a mixer to form a cement paste. Separately, use a foaming agent solution to form a foam consisting of a large number of independent gas chambers. An inorganic material characterized by adding a certain amount of the foam and inorganic fiber to the cement paste, mixing and stirring to form a fiber reinforced paste, injecting the fiber reinforced paste into a mold, and demolding after hardening. A method for manufacturing fiber-reinforced cement building materials. 3. The inorganic fiber-reinforced cement building material according to claim 1, wherein the gas chamber is alkaline. 4. The method for producing an inorganic fiber-reinforced cement building material according to claim 2, wherein the foaming agent has a peptide bond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61188238A JPH0688855B2 (en) | 1986-08-11 | 1986-08-11 | Building material made of carbon fiber reinforced cement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61188238A JPH0688855B2 (en) | 1986-08-11 | 1986-08-11 | Building material made of carbon fiber reinforced cement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6345185A true JPS6345185A (en) | 1988-02-26 |
| JPH0688855B2 JPH0688855B2 (en) | 1994-11-09 |
Family
ID=16220208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61188238A Expired - Lifetime JPH0688855B2 (en) | 1986-08-11 | 1986-08-11 | Building material made of carbon fiber reinforced cement |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0688855B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02221172A (en) * | 1989-02-21 | 1990-09-04 | Nippon Cement Co Ltd | Production of lightweight inorganic hardened body |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4934522A (en) * | 1972-07-31 | 1974-03-30 | ||
| JPS52134629A (en) * | 1976-05-06 | 1977-11-11 | Denki Kagaku Kogyo Kk | Cement foaming agent |
| JPS5595663A (en) * | 1979-01-16 | 1980-07-21 | Jiemusutatsuto Ltd | Fiber reinforced cement composite |
| JPS55126565A (en) * | 1979-03-20 | 1980-09-30 | Kajima Corp | Carbon fiber reinforced inorganic board |
-
1986
- 1986-08-11 JP JP61188238A patent/JPH0688855B2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4934522A (en) * | 1972-07-31 | 1974-03-30 | ||
| JPS52134629A (en) * | 1976-05-06 | 1977-11-11 | Denki Kagaku Kogyo Kk | Cement foaming agent |
| JPS5595663A (en) * | 1979-01-16 | 1980-07-21 | Jiemusutatsuto Ltd | Fiber reinforced cement composite |
| JPS55126565A (en) * | 1979-03-20 | 1980-09-30 | Kajima Corp | Carbon fiber reinforced inorganic board |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02221172A (en) * | 1989-02-21 | 1990-09-04 | Nippon Cement Co Ltd | Production of lightweight inorganic hardened body |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0688855B2 (en) | 1994-11-09 |
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