JPH1017347A - Cement-based extrusion molding aid and cement-based extrusion molding material - Google Patents
Cement-based extrusion molding aid and cement-based extrusion molding materialInfo
- Publication number
- JPH1017347A JPH1017347A JP18671296A JP18671296A JPH1017347A JP H1017347 A JPH1017347 A JP H1017347A JP 18671296 A JP18671296 A JP 18671296A JP 18671296 A JP18671296 A JP 18671296A JP H1017347 A JPH1017347 A JP H1017347A
- Authority
- JP
- Japan
- Prior art keywords
- cement
- extrusion molding
- water
- weight
- based extrusion
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
- C04B40/0042—Powdery mixtures
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00129—Extrudable mixtures
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/10—Mortars, concrete or artificial stone characterised by specific physical values for the viscosity
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
(57)【要約】
【課題】 セメント系押出成形用材料にアスベスト以外
の補強繊維を利用しても表面が平滑な押出成形品を提供
すること。
【解決手段】 ２％水溶液２０℃での粘度が３００００
ｍｐａ・ｓ以上の水溶性ヒドロキシアルキルアルキルセ
ルロース１０〜５０重量％と平均粒子径１０μｍ以下の
ベントナイト粉末とを含むセメント系押出成形助剤であ
って、水以外のセメント系押出成形用材料１００重量部
に対して該水溶性ヒドロキシアルキルアルキルセルロー
スとベントナイト粉末との合計量が１〜１０重量部にな
るように添加して使用することを特徴とするセメント系
押出成形助剤。(57) [Problem] To provide an extruded product having a smooth surface even when a reinforcing fiber other than asbestos is used as a material for cement-based extrusion molding. SOLUTION: The viscosity at 20 ° C. of a 2% aqueous solution is 30,000.
A cement-based extrusion molding aid containing 10 to 50% by weight of a water-soluble hydroxyalkylalkylcellulose having a mpa · s or more and a bentonite powder having an average particle diameter of 10 μm or less, and 100 parts by weight of a cement-based extrusion molding material other than water A cement-based extrusion molding aid characterized by being added so that the total amount of said water-soluble hydroxyalkylalkylcellulose and bentonite powder is 1 to 10 parts by weight.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、セメント系押出成
形助剤及びこれを含有したセメント系押出成形用材料に
関する。本発明のセメント系押出成形用材料は、例え
ば、ビルや家屋の壁材や間仕切り、床材、道路の遮音壁
などに利用される。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cement-based extrusion molding aid and a cement-based extrusion molding material containing the same. The cement-based extrusion molding material of the present invention is used for, for example, wall materials and partitions of buildings and houses, floor materials, sound insulation walls of roads, and the like.
【０００２】[0002]
【従来の技術】セメント系材料の押出成形は、近年、環
境上問題とされているアスベストを補強繊維として使用
しないゼロアスベスト、又はノンアスベスト押出成形と
呼ばれる配合での押出成形が実施されて来ている。2. Description of the Related Art In recent years, extrusion molding of cement-based materials has been carried out by using a composition called asbestos-free or non-asbestos-extrusion molding which does not use asbestos which is considered to be an environmental problem as a reinforcing fiber. I have.
【０００３】アスベストは、繊維の太さが極めて細くま
た太さに対する繊維長さが長いため補強効果が高い上に
セメント等との密着性がよく配合材料中で充分分散し、
かつ押出成形する時に、適当な保水力を有する水溶性の
ヒドロキシアルキルアルキルセルロース類を適量添加す
ることで、成形時にかかる圧力により適度に水を離水し
て成形体表面を平滑にする作用を促す。[0003] Asbestos has a very small fiber thickness and a long fiber length relative to the thickness, so that it has a high reinforcing effect, has good adhesion to cement and the like, and is sufficiently dispersed in the compounding material.
In addition, at the time of extrusion molding, by adding an appropriate amount of a water-soluble hydroxyalkylalkylcellulose having an appropriate water-retaining capacity, water is appropriately released from water by the pressure applied during molding to promote the action of smoothing the surface of the molded article.
【０００４】[0004]
【発明が解決しようとする課題】一方、ゼロアスベスト
系の押出成形で一般に利用されているパルプ繊維やポリ
プロピレン繊維等の有機繊維ないしワラステナイト、セ
ビオライト等の無機繊維においては、水溶性のヒドロキ
シアルキルアルキルセルロース類を添加しても適度な水
の離水を押出成形時に実現することができず、成形体の
表面をアスベストを利用する押出成形のように満足に平
滑にすることが出来ないと言った問題点があった。On the other hand, in organic fibers such as pulp fibers and polypropylene fibers or inorganic fibers such as wollastenite and sebiolite which are generally used in zero asbestos extrusion molding, water-soluble hydroxyalkyl The problem that even with the addition of celluloses, moderate water separation could not be achieved during extrusion molding, and the surface of the molded body could not be satisfactorily smoothed as in the case of extrusion using asbestos. There was a point.
【０００５】本発明者は、上記問題点に鑑み鋭意研究し
た結果、自ら保水力を持つが押出成形のような加圧状態
で水を離水するベントナイト粉末の中から特定の粒子径
のものを水溶性ヒドロキシアルキルアルキルセルロース
に添加して助剤として使用すると、押出成形時にアスベ
スト以外の補強繊維を利用しても表面が平滑な押出成形
品が得られるという新たな知見を見出し、本発明を完成
するに至った。The inventor of the present invention has conducted intensive studies in view of the above problems. As a result, the bentonite powder having a specific particle size, which has a water retention capacity by itself but releases water under a pressurized state such as extrusion molding, is dissolved in water. Of the present invention, it is possible to obtain an extruded product having a smooth surface even when a reinforcing fiber other than asbestos is used at the time of extrusion molding, and complete the present invention. Reached.
【０００６】[0006]
【課題を解決するための手段】すなわち、本発明は、２
％水溶液２０℃での粘度が３００００ｍｐａ・ｓ以上の
水溶性ヒドロキシアルキルアルキルセルロース１０〜５
０重量％と平均粒子径１０μｍ以下のベントナイト粉末
５０〜９０重量％とを含むセメント系押出成形助剤であ
って、水以外のセメント系押出成形用材料１００重量部
に対して該水溶性ヒドロキシアルキルアルキルセルロー
スとベントナイト粉末との合計量が１〜１０重量部にな
るように添加して使用することを特徴とするセメント系
押出成形助剤を提供するものである。That is, the present invention provides a method of
% Aqueous solution having a viscosity at 20 ° C. of 30,000 mpa · s or more.
A cement-based extrusion molding aid containing 0% by weight and 50 to 90% by weight of bentonite powder having an average particle diameter of 10 μm or less, wherein the water-soluble hydroxyalkyl is added to 100 parts by weight of a cement-based extrusion molding material other than water. It is an object of the present invention to provide a cement-based extrusion molding aid characterized by being added and used so that the total amount of alkyl cellulose and bentonite powder is 1 to 10 parts by weight.
【０００７】また、本発明は、２％水溶液２０℃での粘
度が３００００ｍｐａ・ｓ以上の水溶性ヒドロキシアル
キルアルキルセルロース及び平均粒子径１０μｍ以下の
ベントナイト粉末を押出成形助剤として水以外のセメン
ト系押出成形用材料１００重量部に対して１〜１０重量
部含有し、水溶性ヒドロキシアルキルアルキルセルロー
スとベントナイト粉末との重量組成比が１０〜５０：９
０〜５０であることを特徴とするセメント系押出成形用
材料を提供するものである。[0007] The present invention also relates to a cement-based extruder other than water, comprising a water-soluble hydroxyalkylalkylcellulose having a viscosity of not less than 30,000 mPa · s at 20 ° C. and a bentonite powder having an average particle diameter of not more than 10 μm at 20 ° C. It is contained in an amount of 1 to 10 parts by weight based on 100 parts by weight of the molding material, and the weight composition ratio of the water-soluble hydroxyalkylalkyl cellulose to the bentonite powder is 10 to 50: 9.
It is intended to provide a cement-based extrusion-molding material characterized by being 0 to 50.
【０００８】以下、本発明を詳述する。本発明のセメン
ト系押出成形助剤は、セメント、骨剤、補強繊維、成形
助剤、水等を混練して得られるセメント系押出成形用材
料に添加して使用するものであり、２％水溶液２０℃で
の粘度が３００００ｍｐａ・ｓ以上の水溶性ヒドロキシ
アルキルアルキルセルロース１０〜５０重量％と平均粒
子径１０μｍ以下のベントナイト粉末９０〜５０重量％
とを含むものである。Hereinafter, the present invention will be described in detail. The cement-based extrusion molding aid of the present invention is used by adding to a cement-based extrusion molding material obtained by kneading cement, bone, reinforcing fiber, molding aid, water, etc., and using a 2% aqueous solution. 10 to 50% by weight of a water-soluble hydroxyalkylalkyl cellulose having a viscosity at 20 ° C. of 30,000 mpa · s or more and 90 to 50% by weight of bentonite powder having an average particle diameter of 10 μm or less
And
【０００９】セメント系押出成形用材料のセメントとし
ては、普通ポルトランドセメント以外に、早強セメン
ト、フライアッシュセメント、アルミナセメント等の水
硬性セメントが利用できる。骨剤としては、川砂、山
砂、珪砂、寒水砂、軽量骨剤等が利用できる。補強繊維
としては、パルプ繊維やポリプロピレン繊維等の有機繊
維及びワラステナイト、セビオライト等の無機繊維が利
用できる。As cement for the cement-based extrusion molding material, in addition to ordinary Portland cement, hydraulic cement such as high-strength cement, fly ash cement, and alumina cement can be used. As the aggregate, river sand, mountain sand, quartz sand, cold water sand, lightweight aggregate and the like can be used. As the reinforcing fibers, organic fibers such as pulp fibers and polypropylene fibers and inorganic fibers such as wollastenite and sebiolite can be used.
【００１０】本発明に使用する水溶性ヒドロキシアルキ
ルアルキルセルロースとしては、ヒドロキシプロピルメ
チルセルロース、ヒドロキシエチルメチルセルロース、
ヒドロキシエチルエチルセルロース等およそすべての水
溶性ヒドロキシアルキルアルキルセルロースの内、２％
水溶液の粘度が３００００ｍｐａ・ｓ以上のものが使用
できる。粘度が３００００ｍｐａ・ｓ以下であると配合
組成物の保水力が不足し、満足のいく押出成形ができな
い。The water-soluble hydroxyalkylalkylcellulose used in the present invention includes hydroxypropylmethylcellulose, hydroxyethylmethylcellulose,
2% of almost all water-soluble hydroxyalkylalkylcellulose such as hydroxyethylethylcellulose
An aqueous solution having a viscosity of 30,000 mpa · s or more can be used. When the viscosity is 30,000 mpa · s or less, the water retention of the compound composition is insufficient, and satisfactory extrusion molding cannot be performed.
【００１１】また、本発明に使用するベントナイト粉末
とは、主成分にモンモリロナイトを有する粘度鉱物で、
ナトリウム型のものでもカルシウム型のものでも使用で
き、また、人工的に合成されるモンモリロナイトを主成
分とするものも使用できるが、その粒子径が平均で１０
μｍ以下であることが必要となる。平均粒子径が１０μ
ｍより粗いと、ベントナイト自体が表面を凹凸にするこ
とになり平滑な表面形状の押出成形品を得ることができ
なくなる。The bentonite powder used in the present invention is a viscous mineral having montmorillonite as a main component.
Sodium type or calcium type can be used, and those containing montmorillonite which is artificially synthesized as a main component can be used.
It is necessary that the thickness be not more than μm. Average particle size is 10μ
If it is less than m, the bentonite itself will make the surface uneven, making it impossible to obtain an extruded product having a smooth surface shape.
【００１２】上記のベントナイト粉末を前記の水溶性の
ヒドロキシアルキルアルキルセルロースに添加して押出
成形助剤とする割合としては、ベントナイト粉末／水溶
性ヒドロキシアルキルアルキルセルロース＝５０〜９０
重量％／５０〜１０重量％であることが必要となる。ベ
ントナイト粉末の組成割合がこの重量％未満であると目
的とする表面平滑な押出成形が出来ず、また、ベントナ
イト粉末の組成割合がこの重量％より大きいと満足のい
く押出成形が出来なかったり成形体の養成強度が低下し
てしまう。The ratio of the above bentonite powder to the water-soluble hydroxyalkylalkylcellulose to be used as an extrusion molding aid is as follows: bentonite powder / water-soluble hydroxyalkylalkylcellulose = 50-90.
% By weight / 50 to 10% by weight. If the composition ratio of the bentonite powder is less than this% by weight, the desired surface smooth extrusion cannot be performed, and if the composition ratio of the bentonite powder is greater than this% by weight, satisfactory extrusion cannot be performed or the molded article cannot be formed. The training strength of the product decreases.
【００１３】また、この水溶性ヒドロキシアルキルアル
キルセルロースとベントナイト粉末とを混合した押出成
形助剤の、セメント系押出成形用材料への添加量として
は、水及び本発明の押出成形助剤を除いたセメント系押
出成形用材料１００重量部に対して、押出成形助剤に含
まれる水溶性ヒドロキシアルキルアルキルセルロースと
ベントナイト粉末との合計量が１〜１０重量部になるよ
うに添加することが必要である。合計量が１重量部未満
では満足いく押出成形ができず、１０重量部より多いと
成形体の養生強度が低下してしまう。The amount of the extrusion aid obtained by mixing the water-soluble hydroxyalkylalkylcellulose and the bentonite powder to the cement-based extrusion molding material was determined by excluding water and the extrusion aid of the present invention. It is necessary to add so that the total amount of the water-soluble hydroxyalkylalkylcellulose and the bentonite powder contained in the extrusion molding aid is 1 to 10 parts by weight with respect to 100 parts by weight of the cement-based extrusion molding material. . If the total amount is less than 1 part by weight, satisfactory extrusion molding cannot be performed. If the total amount is more than 10 parts by weight, the curing strength of the molded body will be reduced.
【００１４】尚、本発明の押出成形助剤を添加したセメ
ント系押出成形用材料において、その他のバインダーと
して、ポリビニルアルコール、ヒドロキシプロピル澱
粉、ポリエチレンオキサイド及びその誘導体、ポリアク
リルアミド等をさらに添加して押出成形しても本発明の
効果は維持される。最終的なセメント系押出成形用材料
に、結果として、水溶性ヒドロキシアルキルアルキルセ
ルロース及びベントナイト粉末とが、前記した条件及び
配合量で含まれていればよい。In the cement-based extrusion molding material to which the extrusion molding aid of the present invention is added, polyvinyl alcohol, hydroxypropyl starch, polyethylene oxide and its derivatives, polyacrylamide and the like are further added as other binders. Even if it is molded, the effects of the present invention are maintained. As a result, the final cement-based material for extrusion molding should contain the water-soluble hydroxyalkylalkylcellulose and the bentonite powder under the above-mentioned conditions and amounts.
【００１５】[0015]
【実施例】以下本発明を実施例及び比較例を用いてさら
に具体的に説明する。「表１」及び「表２」に示す配合
組成のセメント系押出成形用材料をセメント５ｋｇに対
して秤量し２０リッターの川田製作所製のヘンシェルミ
キサーに入れ羽の回転数１０００ｒ．ｐ．ｍにて３分間
混合した後、「表１」及び「表２」に示す組成の水量を
注水して１分混合してのち、１０リッターの三上工業
（株）製のニーダールーダーへ入れ、６５ｒ．ｐ．ｍに
て５分間、品温度が２５℃以下となるようにジャケット
を冷却しながら混練した。混練物を、石川時（株）鉄工
所製のＹ−２２型真空押出成形装置に入れ、成形温度が
２５℃以下になるように水冷ジャケットを冷却して、幅
４０ｍｍ、高さ２０ｍｍの断面形状の押出成形を行い、
長さ２０ｃｍに切断して３５℃及び１５℃で１００％相
対湿度下の恒温恒湿室にて養生した後、１７０℃にて８
時間の加圧水蒸気養生を行った後、ＪＩＳＲ−５２０１
に準じて曲げ強度を測定した。曲げ強度が１８０ｋｇ／
ｃｍ2 を越える強度となったものを表中強度欄に○印で
示し、１８０ｋｇ／ｃｍ2 以下のものを×印で記述し
た。養生が終了した成形体の表面状態を観察し、パルプ
繊維をアスベストに変えて押出成形した成形体の表面平
滑性を１０点満点として相対評価を行い表面平滑性の欄
に記載した。また、成形性を評価するため、同様状態で
幅７５ｍｍ厚み６ｍｍの押出成形を実施して、成形体に
亀裂なく蛇行なく押出成形された場合を成形性○で評価
し、亀裂や蛇行が起きる場合を×として評価した。使用
した水溶性ヒドロキシアルキルアルキルセルロース、ベ
ントナイト粉末及びセメントは以下の通りである。 水溶性ヒドロキシアルキルアルキルセルロース ＨＰＭＣ：信越化学工業製９０ＳＨタイプ ＨＥＭＣ：信越化学製ＳＮＢタイプ ベントナイト粉末 ベントナイト Ｆ：クニミネ工業（株）製、平均粒子径
１５μｍ ベントナイト Ｋ：クニミネ工業（株）製、平均粒子径
５μｍ セメント：普通ポルトランドセメントThe present invention will be described more specifically below with reference to examples and comparative examples. Cement-based extrusion molding materials having the composition shown in Tables 1 and 2 were weighed with respect to 5 kg of cement, placed in a 20-liter Henschel mixer manufactured by Kawada Seisakusho, and the number of rotations of the blades was set at 1000 rpm. p. After mixing for 3 minutes at m, water of the composition shown in "Table 1" and "Table 2" was injected and mixed for 1 minute, and then put into a 10-liter kneader ruder manufactured by Mikami Kogyo Co., Ltd. 65r. p. and the mixture was kneaded for 5 minutes while cooling the jacket so that the product temperature was 25 ° C. or less. The kneaded product is put into a Y-22 type vacuum extrusion molding device manufactured by Toko Ishikawa Co., Ltd., and the water-cooled jacket is cooled so that the molding temperature is 25 ° C. or less, and the cross-sectional shape is 40 mm in width and 20 mm in height. Extrusion molding of
After cutting to a length of 20 cm and curing in a thermo-hygrostat at 35 ° C. and 15 ° C. and 100% relative humidity, 8% at 170 ° C.
After performing pressurized steam curing for a time, JISR-5201
The bending strength was measured according to the above. Flexural strength 180kg /
Those having a strength exceeding cm 2 were indicated by a circle in the strength column in the table, and those having a strength of 180 kg / cm 2 or less were indicated by a cross. The surface condition of the molded body after curing was observed, and the surface smoothness of the molded body extruded by changing the pulp fiber to asbestos was evaluated relative to a maximum of 10 points, and the results were described in the column of surface smoothness. In addition, in order to evaluate the formability, extrusion molding of a width of 75 mm and thickness of 6 mm was carried out in the same state, and the case where the molded body was extruded without cracks and without meandering was evaluated with moldability ○, and when cracks and meandering occurred. Was evaluated as x. The water-soluble hydroxyalkylalkylcellulose, bentonite powder and cement used are as follows. Water-soluble hydroxyalkylalkyl cellulose HPMC: Shin-Etsu Chemical 90SH type HEMC: Shin-Etsu Chemical SNB type bentonite powder Bentonite F: Kunimine Industry Co., Ltd., average particle size 15 μm Bentonite K: Kunimine Industry Co., Ltd., average particle size 5μm cement: ordinary Portland cement
【００１６】[0016]
【表１】 [Table 1]
【００１７】[0017]
【表２】 [Table 2]
【００１８】[0018]
【発明の効果】本発明によれば、セメント系押出成形用
材料にアスベスト以外の補強繊維を利用しても表面が平
滑な押出成形品を得ることができる。According to the present invention, an extruded product having a smooth surface can be obtained even if a reinforcing fiber other than asbestos is used as a cement-based extrusion molding material.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０４Ｂ 14:10 24:38） 103:44 111:12 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification number Agency reference number FI Technical display location C04B 14:10 24:38) 103: 44 111: 12
Claims (2)
ｍｐａ・ｓ以上の水溶性ヒドロキシアルキルアルキルセ
ルロース１０〜５０重量％と平均粒子径１０μｍ以下の
ベントナイト粉末５０〜９０重量％とを含むセメント系
押出成形助剤であって、水以外のセメント系押出成形用
材料１００重量部に対して該水溶性ヒドロキシアルキル
アルキルセルロースとベントナイト粉末との合計量が１
〜１０重量部になるように添加して使用することを特徴
とするセメント系押出成形助剤。1. A 2% aqueous solution having a viscosity at 20 ° C. of 30,000
A cement-based extrusion molding aid containing 10 to 50% by weight of a water-soluble hydroxyalkylalkylcellulose having a mpa · s or more and 50 to 90% by weight of a bentonite powder having an average particle diameter of 10 μm or less, wherein the cement-based extrusion molding is other than water. The total amount of the water-soluble hydroxyalkylalkyl cellulose and bentonite powder is 1 to 100 parts by weight of the material for use.
A cement-based extrusion molding aid characterized in that it is used in an amount of 10 to 10 parts by weight.
ｍｐａ・ｓ以上の水溶性ヒドロキシアルキルアルキルセ
ルロース及び平均粒子径１０μｍ以下のベントナイト粉
末を押出成形助剤として水以外のセメント系押出成形用
材料１００重量部に対して１〜１０重量部含有し、水溶
性ヒドロキシアルキルアルキルセルロースとベントナイ
ト粉末との重量組成比が１０〜５０：９０〜５０である
ことを特徴とするセメント系押出成形用材料。2. A 2% aqueous solution having a viscosity of 30000 at 20 ° C.
1 to 10 parts by weight of a water-soluble hydroxyalkylalkylcellulose of mpa · s or more and a bentonite powder having an average particle diameter of 10 μm or less are used as an extrusion molding aid, based on 100 parts by weight of a cement-based extrusion molding material other than water. A weight ratio of the hydrophilic hydroxyalkylalkylcellulose to the bentonite powder is from 10 to 50:90 to 50.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18671296A JP3652446B2 (en) | 1996-06-27 | 1996-06-27 | Cement-based extrusion aid and cement-based extrusion molding material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18671296A JP3652446B2 (en) | 1996-06-27 | 1996-06-27 | Cement-based extrusion aid and cement-based extrusion molding material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1017347A true JPH1017347A (en) | 1998-01-20 |
| JP3652446B2 JP3652446B2 (en) | 2005-05-25 |
Family
ID=16193326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18671296A Expired - Fee Related JP3652446B2 (en) | 1996-06-27 | 1996-06-27 | Cement-based extrusion aid and cement-based extrusion molding material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3652446B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1506973A1 (en) * | 2003-08-12 | 2005-02-16 | Wolff Cellulosics GmbH & Co.KG | Additives comprising cellulose derivatives having gel-like rheological properties, their use in building materials and a process for the extrusion of cement using these additives |
| JP2013108339A (en) * | 2011-03-28 | 2013-06-06 | Ube Ind Ltd | Method for constructing concrete floor structure, and concrete floor structure |
-
1996
- 1996-06-27 JP JP18671296A patent/JP3652446B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1506973A1 (en) * | 2003-08-12 | 2005-02-16 | Wolff Cellulosics GmbH & Co.KG | Additives comprising cellulose derivatives having gel-like rheological properties, their use in building materials and a process for the extrusion of cement using these additives |
| US7041168B2 (en) | 2003-08-12 | 2006-05-09 | Wolff Cellulosics Gmbh & Co., | Process for cement extrusion that makes use of crosslinked cellulose additives |
| JP2013108339A (en) * | 2011-03-28 | 2013-06-06 | Ube Ind Ltd | Method for constructing concrete floor structure, and concrete floor structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3652446B2 (en) | 2005-05-25 |
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