JPH0535649B2 - - Google Patents
Info
- Publication number
- JPH0535649B2 JPH0535649B2 JP22122988A JP22122988A JPH0535649B2 JP H0535649 B2 JPH0535649 B2 JP H0535649B2 JP 22122988 A JP22122988 A JP 22122988A JP 22122988 A JP22122988 A JP 22122988A JP H0535649 B2 JPH0535649 B2 JP H0535649B2
- Authority
- JP
- Japan
- Prior art keywords
- carbon fiber
- cement
- required amount
- mixer
- active dispersant
- 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
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 38
- 239000004917 carbon fiber Substances 0.000 claims description 38
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 31
- 239000002270 dispersing agent Substances 0.000 claims description 28
- 239000004568 cement Substances 0.000 claims description 23
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 21
- 238000004898 kneading Methods 0.000 claims description 17
- 239000002893 slag Substances 0.000 claims description 15
- 239000011083 cement mortar Substances 0.000 claims description 14
- 239000004567 concrete Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 239000000377 silicon dioxide Substances 0.000 claims description 11
- 239000000835 fiber Substances 0.000 claims description 9
- 239000004576 sand Substances 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 239000011259 mixed solution Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 10
- 239000004570 mortar (masonry) Substances 0.000 description 7
- 238000007792 addition Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229910021487 silica fume Inorganic materials 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000006703 hydration reaction Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- WURBVZBTWMNKQT-UHFFFAOYSA-N 1-(4-chlorophenoxy)-3,3-dimethyl-1-(1,2,4-triazol-1-yl)butan-2-one Chemical compound C1=NC=NN1C(C(=O)C(C)(C)C)OC1=CC=C(Cl)C=C1 WURBVZBTWMNKQT-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
Landscapes
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はカーテンウオール、外壁パネル、間仕
切板、床板等の繊維補強セメント系複合材料、土
木、建築構造物の補修材等に適用される炭素繊維
補強セメントモルタル、コンクリートの製造法に
係るものである。Detailed Description of the Invention (Field of Industrial Application) The present invention is a carbon fiber reinforced cement composite material for curtain walls, exterior wall panels, partition boards, floor boards, etc., and carbon fiber reinforced cement composite materials for civil engineering and building structures. This relates to the manufacturing method of fiber-reinforced cement mortar and concrete.
（従来の技術）
従来よりセメントマトリツクス中に、炭素繊維
の短繊維を混入して、セメントモルタル、コンク
リート製品の曲げ強度、引張り強度等の諸性質を
改善する試みがなされている。(Prior Art) Attempts have been made to improve various properties of cement mortar and concrete products, such as bending strength and tensile strength, by mixing short carbon fibers into a cement matrix.
しかしながら、細径で、アスペクト比（長さ／
直径）が大きい繊維は、繊維同志が互いに絡み合
つて、いわゆる毛玉状になり易いため、良好なセ
メントモルタル、コンクリートが得られず、補強
材としての機能を充分に発揮させることが困難で
あつた。 However, the diameter is small and the aspect ratio (length/
Fibers with large diameters tend to become entangled with each other and form so-called fluff, making it difficult to obtain good cement mortar and concrete and making it difficult to fully demonstrate the function as a reinforcing material.
このため従来より炭素繊維の分散性を改善する
方法として、次のような方法が採用されている。 For this reason, the following methods have been conventionally employed to improve the dispersibility of carbon fibers.
(1) オムニミキサー等の特殊ミキサーを使用す
る。(1) Use a special mixer such as an omni mixer.
(2) 気泡を混入して混練する。(2) Mix air bubbles and knead.
(3) 増粘剤を添加して混練する。(3) Add a thickener and knead.
（発明が解決しようとする課題）
オムニミキサー等の特殊ミキサーを使用する
と、炭素繊維分散性は改善されるが、オムニミキ
サーは一般のプラントには少なく、それなりの生
産施設を整えなくてはならないのでコストが嵩
み、大容量のオムニミキサーもないため、大量生
産には不向きである。(Problem to be solved by the invention) Carbon fiber dispersibility can be improved by using a special mixer such as an omni mixer, but omni mixers are rare in general plants and require a certain amount of production facilities. It is not suitable for mass production because it is expensive and there is no large-capacity omnimixer.
また気泡を入れて炭素繊維を分散させる方法
は、この方法によつて製造されたセメントモルタ
ル、コンクリートの圧縮、曲げ、引張強度が低
く、繊維補強効果が低い。 Furthermore, in the method of dispersing carbon fibers by introducing air bubbles, the compression, bending, and tensile strengths of cement mortar and concrete produced by this method are low, and the fiber reinforcing effect is low.
更にまた増粘剤を添加する方法は成型性が悪
く、硬化を促進させるのにオートクレーブ養生等
の特殊な養生施設が必要となる。 Furthermore, the method of adding a thickener has poor moldability and requires special curing facilities such as autoclave curing to accelerate curing.
本発明は前記従来技術の有する問題点に鑑みて
提案されたもので、その目的とする処は汎用ミキ
サーで、炭素繊維が３次元ランダムに配向され
た、高強度で緻密、且つ成型性の優れた炭素繊維
補強セメントモルタル、コンクリートの製造法を
提供する点にある。 The present invention was proposed in view of the problems of the prior art, and its purpose is to create a general-purpose mixer that is highly strong, dense, and has excellent moldability, in which carbon fibers are oriented in a three-dimensional random manner. The purpose of the present invention is to provide a method for producing carbon fiber reinforced cement mortar and concrete.
（課題を解決するための手段）
前記の目的を達成するため、本発明に係る炭素
繊維補強セメントモルタル、コンクリートの製造
法は、汎用ミキサーに、夫々所要量の）比較的
粒径の大きい砂、）炭素繊維、）シリカフユ
ーム、）スラグ及び）予め所要量の水と所要
量の約50％の表面活性分散剤との混合液を投入、
混練し、次いで）残り約50％の表面活性分散
剤、）セメントの順序で投入、混練するもので
ある。(Means for Solving the Problems) In order to achieve the above object, the method for producing carbon fiber reinforced cement mortar and concrete according to the present invention provides a method for producing carbon fiber-reinforced cement mortar and concrete, in which a general-purpose mixer is provided with the following methods: ) carbon fiber,) silica fuyum,) slag, and) pre-add a mixture of the required amount of water and about 50% of the required amount of surface active dispersant,
The remaining 50% of the surface active dispersant and the cement are added in this order and kneaded.
本発明はまた前記したように、）比較的粒径
の大きい砂、）炭素素繊維、）シリカフユー
ム、）スラグ及び）予め所要量の水と所要量
の約50％の表面活性分散剤との混合液の順序で汎
用ミキサーに投入し、第１回目の混練を行つたの
ち、）残りの約25〜40％の表面活性分散剤、
）セメントの順序で投入混練し、）残りの10
〜25％の表面活性分散剤を加えて混練するもので
ある。 As mentioned above, the present invention also provides the following methods: a) relatively large particle size sand,) carbon fiber,) silica fume,) slag, and) premixing of a required amount of water with about 50% of the required amount of a surface-active dispersant. After the first kneading process, the remaining approximately 25 to 40% of the surface active dispersant,
) Knead in the order of cement and) the remaining 10
~25% of surface active dispersant is added and kneaded.
なお前記炭素繊維は、体積比で0.5〜10％の短
繊維より構成されることが望ましい。 Note that the carbon fibers are desirably composed of short fibers having a volume ratio of 0.5 to 10%.
（作 用）
繊維分散性の悪い炭素繊維を汎用ミキサーで均
一に分散させるには、シリカフユーム、スラグ等
の微粉末材料のみを添加したのではミキサー内壁
面に炭素繊維、シリカフユーム、スラグが付着し
てしまつて不都合であるが、本発明の方法によれ
ば、比較的粒径の大きい砂を同時に混入ることに
よつて、同砂がスクレーパーの用を果し、ミキサ
ー内壁面に付着する炭素繊維、シリカフユーム、
スラグを掻き落し、これらが均一に分散される。(Function) In order to uniformly disperse carbon fibers with poor fiber dispersibility using a general-purpose mixer, if only fine powder materials such as silica fume and slag were added, the carbon fibers, silica fume and slag would adhere to the inner wall of the mixer. Although this is inconvenient, according to the method of the present invention, by simultaneously mixing sand with a relatively large particle size, the sand serves as a scraper, and the carbon fibers that adhere to the inner wall of the mixer are removed. silica fuyum,
Scrape off the slag to ensure that they are evenly distributed.
更にセメントを、炭素繊維、シリカフユーム、
スラグ、水、表面活性分散剤と同時に汎用ミキサ
ーに投入して混練すると、炭素繊維が前記したよ
うに均一に分散する前に水和反応が生起し、炭素
繊維が毛玉状になつたり、セメント玉が発生す
る。 Furthermore, cement, carbon fiber, silica fuyum,
If slag, water, and a surface-active dispersant are mixed together in a general-purpose mixer, a hydration reaction will occur before the carbon fibers are evenly dispersed as described above, causing the carbon fibers to become fluffy or cement balls to form. Occur.
しかるに本発明においては前記したように第１
回目の混練で炭素繊維を均一に分散させ、そこに
第２回目の混練でセメント及び表面活性分散剤を
投入し、水和反応を炭素繊維の均一な分散が終つ
たあとに生起せしめ、この第２回目以降の表面活
性分散剤の添加によつて、セメント粒子を均一に
分散せしめるものである。 However, in the present invention, as described above, the first
The carbon fibers are uniformly dispersed in the second kneading, and the cement and surface active dispersant are added in the second kneading to allow the hydration reaction to occur after the carbon fibers have been uniformly dispersed. By adding the surface active dispersant from the second time onward, the cement particles are uniformly dispersed.
（実施例） 以下本発明を実施例について説明する。(Example) The present invention will be described below with reference to Examples.
前記実施例に使用される材料を挙げる。 The materials used in the above examples are listed below.
（材 料）
セメント(C) 普通ポルトランドセメント
混和材（Si） リカフユーム
（商品名：ポゾミツクスＰユニオン化成株
式会社製）
（Sl） 高炉水砕スラグ
（商品名：フアインセメント10A第一セメ
ント株式会社製）
骨材(S) 砂
表面活性分散剤(P) 減水剤（メラミン・スルフ
オン酸高縮合物塩）
（商品名：マイテイ150V−２花王株式会
社製）
水(w)（Ｗ） 水道水
炭素繊維（CF） ピツチ系短繊維
（商品名：Ｃ−103T呉羽化学株式会社製）
次に調合例を挙げる。(Material) Cement (C) Ordinary Portland cement Admixture (Si) Licafuyum (Product name: Pozomics P manufactured by Union Kasei Co., Ltd.) (Sl) Granulated blast furnace slag (Product name: Fine Cement 10A manufactured by Daiichi Cement Co., Ltd.) ) Aggregate (S) Sand Surface active dispersant (P) Water reducing agent (melamine/sulfonic acid high condensate salt) (Product name: Mighty 150V-2 manufactured by Kao Corporation) Water (w) (W) Tap water Carbon fiber (CF) Pitch short fiber (trade name: C-103T manufactured by Kureha Chemical Co., Ltd.) Next, a formulation example will be given.
炭素繊維混入率（容積％） ３％
水／（セメント＋シリカフユーム＋スラグ）比
Ｗ／Ｃ＋Si＋Sl）（重量％） 30％
シリカフユーム／セメント比
Si／Ｃ （重量％） 25％
骨材／（セメント＋シリカフユーム＋スラグ）
比
Ｓ／（Ｃ＋Si＋Sl）（重量％） 60％
表面活性分散剤／セメント比
Ｐ／Ｃ （重量％） ５％
実施例 １
PC工場のバツチヤプラント内の1500の容量
のパン型（強制撹拌練り）ミキサーを用いてモル
タルを１バツチ当り1000混練した。 Carbon fiber mixing ratio (volume%) 3% Water/(cement + silica fuyum + slag) ratio W/C + Si + Sl) (weight%) 30% Silica fuyume/cement ratio Si/C (weight%) 25% Aggregate/(cement + silica fuyum) + slag)
Ratio S/(C+Si+Sl) (wt%) 60% Surface active dispersant/cement ratio P/C (wt%) 5% Example 1 Bread mold with a capacity of 1500 in the batchya plant of a PC factory (forced stirring kneading) 1000 pieces of mortar were kneaded per batch using a mixer.
） 所要量の砂
） 所要量の炭素繊維
） 所要量のシリカフユーム
） 所要量のスラグ
） 予め所要量の水と所要量の約半分の表面
活性分散剤を混合したもの
の順序で前記ミキサーに投入し、約３分間、第１
回目の混練を行なう。 ) Required amount of sand) Required amount of carbon fiber) Required amount of silica fuyum) Required amount of slag) Required amount of water and approximately half of the required amount of surface active dispersant are mixed in advance into the mixer in this order, Approximately 3 minutes, 1st
Perform the second kneading.
次いで
） 残り約半分の表面活性分散剤
） 所要量のセメント
の順序で前記ミキサーに投入し、約３分間、第２
回目の混練を行つて、炭素繊維補強モルタルを製
造した。 Next, add the remaining approximately half of the surface-active dispersant and the required amount of cement into the mixer, and mix for about 3 minutes.
A second kneading process was performed to produce carbon fiber reinforced mortar.
前記実施例によつて製造された炭素繊維モルタ
ルの試験結果を次ぎに挙げる。 The test results of the carbon fiber mortar produced according to the above examples are listed below.
まだ固まらないモルタルの物性
単位容積重量 2.01Kg／
空気量 5.65％
フロー値 156mm
スランプ値 17.1cm
材令28日強度試験結果
（標準水中養生）
圧縮強度 600〜800Kg／cm2
曲げ強度 150〜160Kg／cm2
引張強度 30〜40 Kg／cm2
実施例 ２
実施例１におけるミキサーを用いて、モルタル
を１バツチ当り1000混練した。 Physical properties of unhardened mortar Unit volume weight 2.01Kg / Air content 5.65% Flow value 156mm Slump value 17.1cm Age 28 days strength test result (standard underwater curing) Compressive strength 600-800Kg/cm 2 Bending strength 150-160Kg/cm 2 Tensile strength 30-40 Kg/cm 2 Example 2 Using the mixer in Example 1, 1000 pieces of mortar were kneaded per batch.
） 所要量の砂
） 所要量の炭素繊維
） 所要量のシリカフユーム
） 所要量のスラグ
） 予め所要量の水と所要量の約50％の表面
を混合したもの
の順序で前記ミキサーに投入し、約３分間、第１
回目の混練を行なう。 ) Required amount of sand ) Required amount of carbon fiber ) Required amount of silica fuyum ) Required amount of slag ) Required amount of water and approximately 50% of the required amount of surface were mixed in advance and charged into the mixer in this order, and approximately 3 minutes, 1st
Perform the second kneading.
次いで
） 残りの25〜40％の表面活性分散剤
） 所要量のセメント
の順序で前記ミキサーに投入し、約３分間、第２
回目の混練を行なう。 Then) the remaining 25-40% of the surface active dispersant) and the required amount of cement were added to the mixer in the order of 3 minutes, and the second
Perform the second kneading.
次いで
） 残りの10〜25％の表面活性分散剤
を前記ミキサーに投入して約１分間、第３回目の
混練を行つて炭素繊維補強モルタルを製造した。 Then, the remaining 10 to 25% of the surface active dispersant was added to the mixer and kneaded for a third time for about 1 minute to produce a carbon fiber reinforced mortar.
なお本実施例によつて製造された炭素繊維補強
モルタルの試験結果は、実施例１の場合とほぼ同
一であつた。 The test results of the carbon fiber-reinforced mortar produced in this example were almost the same as in Example 1.
（発明の効果）
本発明によれば前記したように、繊維分散性の
悪い炭素繊維の補強セメントモルタル、コンクリ
ートを製造するのに当り、シリカフユーム、スラ
グの微粉末材料を混和するとともに、同各微粉末
材料のミキサー内壁に付着するのを防止するスク
レーパの用を果す、比較的粒径の大きい砂を混入
し、且つ所要量の水と所要量の50％の表面活性分
散剤との混合液をミキサーに投入して第１回目の
混練を行なうことによつて、炭素繊維を前記シリ
カフユーム及びスラグとともに均一に分散させ、
しかるのち残り約50％の表面活性分散剤及びセメ
ントをミキサーに投入して第２回目の混練を行な
い、セメント粒子を均一に分散させたのち水和反
応を生起せしめるものである。(Effects of the Invention) As described above, according to the present invention, when manufacturing carbon fiber reinforced cement mortar and concrete with poor fiber dispersibility, fine powder materials such as silica fuyum and slag are mixed together, and Mixed with sand of relatively large particle size, which acts as a scraper to prevent the powder material from adhering to the inner wall of the mixer, and mixed with the required amount of water and 50% of the required amount of surface-active dispersant. By putting it into a mixer and performing the first kneading, the carbon fibers are uniformly dispersed together with the silica fume and slag,
Thereafter, the remaining approximately 50% of the surface-active dispersant and cement are put into a mixer and kneaded for a second time to uniformly disperse the cement particles and then cause a hydration reaction.
このように本発明によれば表面活性分散剤の添
加回数を２回に分け、第１回目の添加により炭素
繊維を均一に分散させ、第２回目の添加によりセ
メント粒子を均一に分散させるもので、このよう
に表面活性分散剤の添加回数を２回に分けること
によつて、またおくれ添加の効果が表われ、流動
性が発現され、表面活性分散剤の量を節減でき
る。 As described above, according to the present invention, the number of additions of the surface active dispersant is divided into two times, and the carbon fibers are uniformly dispersed by the first addition, and the cement particles are uniformly dispersed by the second addition. By dividing the number of additions of the surface-active dispersant into two in this way, the effect of delayed addition is also exhibited, fluidity is developed, and the amount of the surface-active dispersant can be reduced.
本発明によれば前記したように、繊維分散性の
悪い炭素繊維を汎用ミキサーで良好に３次元ラン
ダムに配向させた高強度緻密な炭素繊維補強セメ
ントモルタルコンクリートの製造が可能となり、
また同セメントモルタルコンクリートを汎用ミキ
サーで混練できるので、既存の設備で大量生産が
可能となる。 According to the present invention, as described above, it is possible to produce high-strength and dense carbon fiber-reinforced cement mortar concrete in which carbon fibers with poor fiber dispersibility are well oriented in a three-dimensional random manner using a general-purpose mixer.
Additionally, since the same cement mortar concrete can be mixed with a general-purpose mixer, mass production is possible using existing equipment.
請求項２の発明は前記発明における第１回目の
混練後、表面活性分散剤の約25〜40％とセメント
とを投入して第２回目の混練を行ない更に残りの
10〜25％の表面活性分散剤を加えて第３回目の混
練を行なうもので、前記表面活性分散剤を練り水
に取り込んでからミキサー内で混練するより、同
ミキサー内で水和物を混練しておいてから少し遅
れて更に混練することによつて分散効果がよりよ
く発揮され、表面活性分散剤の量をより少なくす
ることができる。 In the invention of claim 2, after the first kneading in the above invention, approximately 25 to 40% of the surface active dispersant and cement are added and a second kneading is performed to further mix the remaining part.
A third kneading process is performed by adding 10 to 25% of a surface-active dispersant, and rather than incorporating the surface-active dispersant into the kneading water and then kneading it in the mixer, the hydrate is kneaded in the same mixer. By further kneading after a short delay, the dispersion effect can be better exhibited and the amount of surface-active dispersant can be further reduced.
請求項３の発明は前記炭素繊維を体積比で0.5
〜10％の短繊維より構成することによつて、炭素
繊維のセメントモルタル、コンクリート内におけ
る良好なる次元ランダム配向を可能ならしめるも
のである。 In the third aspect of the invention, the carbon fiber has a volume ratio of 0.5.
By comprising ~10% of short fibers, it is possible to achieve good dimensional random orientation of carbon fibers in cement mortar and concrete.
Claims (1)
径の大きい砂、）炭素繊維、）シリカフユー
ム、）スラグ及び）予め所要量の水と所要量
の約50％の表面活性分散剤との混合液を投入、混
練し、次いで）残り約50％の表面活性分散剤、
）セメントの順序で投入、混練することを特徴
とする炭素繊維補強セメントモルタル、コンクリ
ートの製造法。 ２ 汎用ミキサーに、夫々所要量の）比較的粒
径の大きい砂、）炭素繊維、）シリカフユー
ム、）スラグ及び）予め所要量の水と所要量
の約50％の表面活性分散剤との混合液を投入、混
練し、次いで）残りの約25〜40％の表面活性分
散剤、）セメントの順序で投入混練したのち、
更に）残りの10〜25％の表面活性分散剤を加え
て混練する請求項１記載の炭素繊維補強セメント
モルタル、コンクリートの製造法。 ３ 前記炭素繊維は体積比で0.5〜10％の短繊維
より構成された請求項１または２記載の炭素繊維
補強セメントモルタル、コンクリートの製造法。[Claims] 1. In a general-purpose mixer, the required amounts of sand with a relatively large particle size, carbon fiber, silica fuum, slag and) water and about 50% of the required amount of surface activity are added in advance to a general-purpose mixer. Inject and knead the mixture with the dispersant, then) add the remaining approximately 50% of the surface active dispersant,
) A method for producing carbon fiber-reinforced cement mortar and concrete, which is characterized by adding and kneading cement in the following order. 2. In a general-purpose mixer, add the required amounts of sand with a relatively large particle size, carbon fiber, silica fuum, slag, and) a preliminarily mixed solution of the required amount of water and about 50% of the required amount of surface active dispersant. Then add and knead the remaining approximately 25 to 40% of surface active dispersant and) cement in the following order:
2. The method for producing carbon fiber reinforced cement mortar and concrete according to claim 1, further comprising adding and kneading the remaining 10 to 25% of a surface active dispersant. 3. The method for producing carbon fiber-reinforced cement mortar and concrete according to claim 1 or 2, wherein the carbon fibers are composed of 0.5 to 10% by volume of short fibers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22122988A JPH0269207A (en) | 1988-09-06 | 1988-09-06 | Manufacture of carbon fiber reinforced cement mortar and concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22122988A JPH0269207A (en) | 1988-09-06 | 1988-09-06 | Manufacture of carbon fiber reinforced cement mortar and concrete |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0269207A JPH0269207A (en) | 1990-03-08 |
| JPH0535649B2 true JPH0535649B2 (en) | 1993-05-27 |
Family
ID=16763493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22122988A Granted JPH0269207A (en) | 1988-09-06 | 1988-09-06 | Manufacture of carbon fiber reinforced cement mortar and concrete |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0269207A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7285167B2 (en) * | 2003-10-08 | 2007-10-23 | Ogden Technologies, Inc. | Fiber reinforced concrete/cement products and method of preparation |
| US7341627B2 (en) | 2005-02-18 | 2008-03-11 | Ogden Technologies, Inc. | Fiber reinforced concrete products and method of preparation |
| WO2006091185A1 (en) * | 2005-02-18 | 2006-08-31 | Ogden Technologies, Inc. | Fiber reinforced concrete/cement products and method of preparation |
| US7396403B1 (en) | 2006-02-17 | 2008-07-08 | Ogden Technologies, Inc. | Concrete reinforced with acrylic coated carbon fibers |
| JP6611163B2 (en) * | 2015-08-31 | 2019-11-27 | 太平洋セメント株式会社 | Method for producing cement composition |
-
1988
- 1988-09-06 JP JP22122988A patent/JPH0269207A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0269207A (en) | 1990-03-08 |
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