JPH0570203A - Cement composition containing alkoxysilanes for extrusion molding - Google Patents
Cement composition containing alkoxysilanes for extrusion moldingInfo
- Publication number
- JPH0570203A JPH0570203A JP23026691A JP23026691A JPH0570203A JP H0570203 A JPH0570203 A JP H0570203A JP 23026691 A JP23026691 A JP 23026691A JP 23026691 A JP23026691 A JP 23026691A JP H0570203 A JPH0570203 A JP H0570203A
- Authority
- JP
- Japan
- Prior art keywords
- cement
- extrusion molding
- alkoxysilane
- cement composition
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、アルコキシシラン類を
含有し、撥水防水性が優れた押し出し成形用セメント組
成物に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an extrusion molding cement composition containing alkoxysilanes and having excellent water repellency and water resistance.
【０００２】[0002]
【従来の技術】従来、建築用の外壁材、屋根材、床材等
には、例えばアスベスト繊維のような繊維状物質で補強
されたセメント板が広く用いられてきた。このセメント
板は、セメントに２０重量部程度の繊維状物質や骨材を
混合し、水を添加して混練し、所望の形状のダイスを用
いて押し出し成形することにより得られる。このように
して得られたセメント板は今日では重要な建築材料の一
つであるが、寒冷地における使用にはまだ問題が多い。
寒冷地は温度が低いため、セメント板に含まれる水分が
凍結し、セメント板が簡単に膨張破壊し、セメント板の
耐久性が著しく低下する。従って、寒冷地でもセメント
板が耐久性を持つためには、セメント板の内部へ水が浸
透しないようにすることである。2. Description of the Related Art Conventionally, cement boards reinforced with fibrous substances such as asbestos fibers have been widely used for exterior wall materials, roof materials, floor materials, etc. for construction. This cement plate is obtained by mixing about 20 parts by weight of a fibrous substance or aggregate with cement, kneading by adding water, and extruding using a die having a desired shape. The cement board thus obtained is one of the important building materials today, but it is still problematic for use in cold regions.
Since the temperature is low in cold regions, the water contained in the cement board freezes, the cement board easily expands and breaks, and the durability of the cement board significantly decreases. Therefore, in order for the cement board to have durability even in cold regions, it is necessary to prevent water from penetrating into the cement board.
【０００３】前記のようにセメント製品が水分凍結によ
り膨張破壊されることを防止するために、今まで以下の
ようなことが試みられている。例えば塩化ビニル、ビニ
ル樹脂系、ポリウレタン系、アミノ樹脂系のような撥水
性、防水性の各種塗料をセメント製品の表面に塗布した
り、特開平３−３１３７０号公報に開示されているシリ
ル基含有プライマーをセメント製品の表面に塗布した上
に塗料を塗布することが検討されている。しかしなが
ら、前記のような撥水性、防水性の材料をセメント製品
の表面に塗布しても、セメント押し出し成形板は表面が
緻密なために含浸しにくい。また、表面に撥水性、防水
性の材料が含浸して防水層が形成された場合でも、防水
層は極薄いものであり、長時間経過すると防水性が低下
し、耐久性がなくなる。In order to prevent the cement product from expanding and breaking due to freezing of water as described above, the following attempts have been made so far. For example, various water-repellent and waterproof coating materials such as vinyl chloride, vinyl resin-based, polyurethane-based, amino resin-based coatings are applied to the surface of cement products, and silyl group-containing compounds disclosed in JP-A-3-31370 are disclosed. It has been considered to apply a coating on the surface of a cement product with a primer. However, even if the water-repellent and waterproof material as described above is applied to the surface of the cement product, the cement extrusion molded plate is difficult to impregnate because the surface is dense. Further, even when the surface is impregnated with a water-repellent and waterproof material to form the waterproof layer, the waterproof layer is extremely thin, and the waterproof property deteriorates after a long time, and the durability is lost.
【０００４】[0004]
【発明が解決しようとする課題】本発明は前記の課題を
解決するためなされたもので、撥水防水性が優れた高耐
久性セメント成形体が得られ、押し出し成形を容易に行
なうことができる、押し出し成形用セメント組成物を提
供することを目的とする。The present invention has been made to solve the above-mentioned problems, and a highly durable cement molded product having excellent water repellency and waterproof property can be obtained, and extrusion molding can be easily performed. An object of the present invention is to provide an extrusion molding cement composition.
【０００５】[0005]
【課題を解決するための手段】前記の目的を達成するた
めになされた本発明の押し出し成形用セメント組成物
は、一般式（１）The extrusion molding cement composition of the present invention, which has been made to achieve the above object, has the general formula (1):
【０００６】[0006]
【化２】 [Chemical 2]
【０００７】（Ｒ1 は炭素数が１〜２０のアルキル基、
アルケニル基、アリール基、置換基を有するアルキル基
のうちから選ばれる同一または異種の基、Ｒ2 は炭素数
が１〜４のアルキル基で同一の基、ｎは１〜３の整数を
表す）で示されるアルコキシシランおよび／または前記
アルコキシシランの加水分解縮合物の１種類以上と、繊
維状物質と、押し出し成形用バインダとを、セメントモ
ルタルに混和したものである。(R 1 is an alkyl group having 1 to 20 carbon atoms,
The same or different groups selected from an alkenyl group, an aryl group and an alkyl group having a substituent, R 2 is the same group as an alkyl group having 1 to 4 carbon atoms, and n is an integer of 1 to 3) One or more kinds of the alkoxysilane and / or the hydrolysis-condensation product of the alkoxysilane, the fibrous substance, and the binder for extrusion molding are mixed in cement mortar.
【０００８】前記の押し出し成形用セメント組成物にお
ける各物質の混合割合は以下の通りである。アルコキシ
シランおよび／または前記アルコキシシランの加水分解
縮合物は、０．０１〜５重量部、繊維状物質は０〜１５
重量部、押し出し成形用バインダは０．２〜２重量部で
ある。The mixing ratio of each substance in the above-mentioned extrusion molding cement composition is as follows. The alkoxysilane and / or the hydrolysis-condensation product of the alkoxysilane is 0.01 to 5 parts by weight, and the fibrous substance is 0 to 15 parts by weight.
Parts by weight, and the binder for extrusion molding is 0.2 to 2 parts by weight.
【０００９】一般式（１）で示されるアルコキシシラン
としては、例えば以下のものが例示できる。Examples of the alkoxysilane represented by the general formula (1) include the followings.
【００１０】[0010]
【化３】 [Chemical 3]
【００１１】また、アルコキシシランの加水分解縮合物
は、公知の加水分解法により得ることができる。具体的
には、例えばアルコール類の溶媒中にアルコキシシラン
と水をモル比が０．５〜２．０の範囲で入れ、例えば塩
酸、硫酸、酢酸の酸触媒のもとで反応温度を０〜２００
℃に調節して反応させるのである。The hydrolysis-condensation product of alkoxysilane can be obtained by a known hydrolysis method. Specifically, for example, an alkoxysilane and water are put in a solvent of alcohols at a molar ratio of 0.5 to 2.0, and the reaction temperature is adjusted to 0 to 0 under an acid catalyst of hydrochloric acid, sulfuric acid or acetic acid. 200
The temperature is adjusted to ℃ to react.
【００１２】アルコキシシランおよびアルコキシシラン
の加水分解縮合物の添加量は、１種類のときはその添加
量が、２種類以上のときはその合計が０．０１〜５重量
部の範囲である。添加量が０．０１重量部未満では撥水
防水性が不十分であり、５重量部以上添加すると不経済
であるばかりでなく、セメント成形体の強度が低下す
る。The addition amount of the alkoxysilane and the hydrolysis-condensation product of the alkoxysilane is in the range of 0.01 to 5 parts by weight when the addition amount is one, and when the addition amount is two or more. If the addition amount is less than 0.01 parts by weight, the water repellency and water resistance are insufficient, and if the addition amount is 5 parts by weight or more, not only is it uneconomical, but the strength of the cement molded product is reduced.
【００１３】アルコキシシランおよびアルコキシシラン
の加水分解縮合物は、そのままの液状で添加してよい
が、必要に応じて各種乳化剤と混合した乳化物として添
加してもよい。また、シリカ粉末等のフィラーに含浸
し、セメント等と混合しても差し支えない。The alkoxysilane and the hydrolysis-condensation product of the alkoxysilane may be added in the liquid state as they are, but may be added as an emulsion mixed with various emulsifiers if necessary. Further, it may be impregnated with a filler such as silica powder and mixed with cement or the like.
【００１４】押し出し成形用バインダは、一般に押し出
し成形用セメントに用いられるアルキルセルロースおよ
びヒドロキシアルキルアルキルセルロースでよく、これ
らは単独でも、混合してもよい。アルキルセルロースと
しては、例えばメチルセルロース、エチルセルロースが
例示でき、ヒドロキシアルキルアルキルセルロースとし
ては、例えば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
チルセルロースが例示される。押し出し成形用バインダ
の添加量は、使用する繊維状物質の量および分散性能の
違いにより異なるが、前記したようにセメント組成物全
体の０．２〜２重量部である。０．２重量部未満では良
好な成形性、加工性が得られず、２重量部を越えても成
形性、加工性は変わらずコストが上昇するだけである。The extruding binder may be an alkyl cellulose or a hydroxyalkyl alkyl cellulose which is generally used in an extruding cement, and these may be used alone or in a mixture. Examples of the alkyl cellulose include methyl cellulose and ethyl cellulose, and examples of the hydroxy alkyl alkyl cellulose include hydroxypropyl methyl cellulose, hydroxyethyl methyl cellulose and hydroxyethyl ethyl cellulose. The addition amount of the extrusion-molding binder varies depending on the amount of the fibrous substance to be used and the dispersion performance, but as described above, it is 0.2 to 2 parts by weight of the whole cement composition. If it is less than 0.2 parts by weight, good moldability and workability cannot be obtained, and if it exceeds 2 parts by weight, moldability and workability do not change and the cost only rises.
【００１５】なお、前記アルキルセルロースおよびヒド
ロキシアルキルアルキルセルロースの粘度は、２０℃、
２％の水溶液でＪＩＳウベローデ粘度計Ｎｏ．５による
測定で粘度が１万ｃｐｓ（centipoise）以上のものが好
ましい。粘度が１万ｃｐｓ以下では、バインダとして粘
結力が付与されない。The viscosity of the alkyl cellulose and hydroxyalkyl alkyl cellulose is 20 ° C.
JIS Uberode viscometer No. It is preferable that the viscosity is 10,000 cps (centipoise) or more as measured by 5. When the viscosity is 10,000 cps or less, the binder does not have cohesive force.
【００１６】繊維状物質はセメント成形体の強度、特に
衝撃強度を増加するために必要である。セメント成形体
の強度を増加するためには、繊維状物質は長くて細いも
のが好ましいが、繊維が長すぎると混合物を混練すると
きに分散しにくいので、以下のものが好ましい。繊維状
物質は直径が１〜２０μｍ、長さが１〜１０ｍｍであ
り、その添加量は０〜１５重量部である。繊維状物質の
直径および長さが前記の範囲より小さい場合は、成形時
の保形成が悪く、また補強繊維としての本来の効果もな
い。繊維状物質の直径および長さが前記の範囲より大き
い場合、または添加量が１５重量部より多い場合は、良
好な成形性が得られず、押し出し成形体の表面が平滑性
のないものになる。The fibrous substance is necessary for increasing the strength of the cement molded product, especially the impact strength. In order to increase the strength of the cement molded product, it is preferable that the fibrous substance is long and thin, but if the fiber is too long, it will be difficult to disperse when kneading the mixture, and therefore the following are preferable. The fibrous substance has a diameter of 1 to 20 μm and a length of 1 to 10 mm, and its addition amount is 0 to 15 parts by weight. When the diameter and length of the fibrous substance are smaller than the above range, the retention during molding is poor, and the original effect as a reinforcing fiber is not obtained. If the diameter and length of the fibrous substance is larger than the above range, or if the amount added is more than 15 parts by weight, good moldability cannot be obtained, and the surface of the extruded body is not smooth. ..
【００１７】繊維状物質としては、例えばアスベスト繊
維、パルプ繊維、ポリプロピレン、ビニロン、アクリル
などの合成繊維、および炭素繊維を用いることができ
る。これらのうち、コストが比較的安く、分散性につい
ても優れているアスベスト繊維、パルプ繊維が好まし
い。前記の繊維は、１種類でも２種類以上組み合わせて
使用してもよい。As the fibrous substance, for example, asbestos fibers, pulp fibers, synthetic fibers such as polypropylene, vinylon and acrylic, and carbon fibers can be used. Of these, asbestos fibers and pulp fibers, which are relatively inexpensive and have excellent dispersibility, are preferable. The above fibers may be used alone or in combination of two or more.
【００１８】セメント組成物の主材であるセメントモル
タルは、一般に使用されているセメント材料、骨材、
水、その他の添加剤からなる。セメント材料には通常の
ポルトランドセメントの他、例えばアルミナセメントの
ような特殊セメントも使用できる。骨材には一般にセメ
ントモルタルに用いられるパーライト、フライアッシュ
などの軽量骨材の他、シリカ質よりなる５〜１２号の硅
砂、セメントと同じ粒径もしくはそれ以下の粒径の硅
砂、シリカ材料、シリカフュームを用いることもでき
る。Cement mortar, which is the main material of the cement composition, is a commonly used cement material, aggregate,
Consists of water and other additives. As the cement material, in addition to ordinary Portland cement, special cement such as alumina cement can be used. As aggregate, in addition to lightweight aggregates such as pearlite and fly ash generally used for cement mortar, silica sand No. 5-12 made of silica, silica sand having the same or smaller particle size as cement, silica material, Silica fume can also be used.
【００１９】[0019]
【作用】本発明の押し出し成形用セメント組成物は、撥
水性のあるアルコキシシラン、またはその加水分解縮合
物が含まれているため、そのセメント成形体は防水性に
優れ、セメント成形体の内部に水分が浸透しない。ま
た、アルコキシシランやその加水分解縮合物はセメント
成形体の表面でなく、内部に散在しているので長期間に
わたり、撥水防水性が持続される。Since the extrusion molding cement composition of the present invention contains the water-repellent alkoxysilane or its hydrolyzed condensate, the cement molded article has excellent waterproofness and is Water does not penetrate. Further, since the alkoxysilane and its hydrolyzed condensate are scattered on the inside of the cement molded article, not on the surface, the water repellency and waterproofness are maintained for a long period of time.
【００２０】[0020]
【実施例】以下、本発明の実施例を説明する。EXAMPLES Examples of the present invention will be described below.
【００２１】実施例１〜１０、比較例１〜３は、下記の
材料を表１に示す割合（重量部）で配合し、吉田製作所
双腕ニーダーを用いて混練した後、石川時（株）製真空
押し出し成形機Ｙ−２２型により幅が７５ｍｍ、厚みが
６ｍｍのシートに押し出し成形した。このシートを下記
の試験方法により成形性、防水性を比較し、その結果も
表１に記した。In Examples 1 to 10 and Comparative Examples 1 to 3, the following materials were mixed in the proportions (parts by weight) shown in Table 1 and kneaded using a Yoshida Seisakusho double-arm kneader, and then Ishikawa Toki Co., Ltd. A sheet having a width of 75 mm and a thickness of 6 mm was extrusion-molded by a vacuum extrusion molding machine Y-22 type. This sheet was compared in moldability and waterproofness by the following test method, and the results are also shown in Table 1.
【００２２】［配合物］ セメント ：アサノ普通ポルトランドセメントランドセ
メント 硅石 ：鳥屋根社製 Ａ級Ｎｏ．３０平均粒径９〜
１２μｍ粉砕品 シラン類１：ヘキシルトリメトキシシラン シラン類２：デシルトリメトキシシラン シラン類３：ヘキシルトリエトキシシラン シラン類４：フェニルトリメトキシシラン シラン類５：ヘキシルトリメトキシシランの加水分解縮
合物（ヘキシルトリメトキシシランと水のモル比が２：
１） 繊維１ ：直径１〜１５μｍ、長さ１〜３ｍｍのパル
プ繊維 繊維２ ：直径１〜１５μｍ、長さ１〜３ｍｍのビニ
ロン繊維 繊維３ ：アスベスト繊維 ＨＰＭＣ ：ヒドロキシプロピルメチルセルロース（２
０℃、２％の水溶液、ＪＩＳウベローデ粘度計Ｎｏ．５
による測定で粘度が１．５万ｃｐｓ、信越化学工業
（株）製、９０ＳＨタイプ） ＨＥＭＣ ：ヒドロキシエチルメチルセルロース（同上
粘度が１０万ｃｐｓ、信越化学工業（株）製、ＳＥＷタ
イプ） ＭＣ ：メチルセルロース（同上粘度が８万ｃｐ
ｓ、信越化学工業（株）製、ＳＭタイプ） ［試験方法］ １．成形性 厚み６ｍｍ、幅７５ｍｍのダイスを装着した真空押し出
し成形機Ｙ−２２型（石川時（株）製）より成形体を吐
出した際に、成形体がダイスの型通りの断面を呈したも
のを「良」とし、吐出口より両端が切れて出てくるもの
を「両端切れ」とした。[Compound] Cement: Asano Ordinary Portland Cement Land Cement Silica Stone: A-No. 30 average particle size 9-
12 μm ground product Silanes 1: Hexyltrimethoxysilane Silanes 2: Decyltrimethoxysilane Silanes 3: Hexyltriethoxysilane Silanes 4: Phenyltrimethoxysilane Silanes 5: Hexyltrimethoxysilane hydrolysis condensate (hexyl) The molar ratio of trimethoxysilane to water is 2:
1) Fiber 1: Pulp fiber having a diameter of 1 to 15 μm and a length of 1 to 3 mm Fiber 2: Vinylon fiber having a diameter of 1 to 15 μm and a length of 1 to 3 mm Fiber 3: Asbestos fiber HPMC: Hydroxypropyl methylcellulose (2
0 ° C., 2% aqueous solution, JIS Ubbelohde viscometer No. 5
Viscosity of 15,000 cps, manufactured by Shin-Etsu Chemical Co., Ltd., 90SH type) HEMC: hydroxyethyl methylcellulose (same viscosity as above, 100,000 cps, Shin-Etsu Chemical Co., Ltd., SEW type) MC: methylcellulose ( Same viscosity of 80,000 cp
s, manufactured by Shin-Etsu Chemical Co., Ltd., SM type) [Test method] 1. Formability When the molded body was discharged from a vacuum extrusion molding machine Y-22 type (manufactured by Ishikawa Toki Co., Ltd.) equipped with a die having a thickness of 6 mm and a width of 75 mm, the molded body exhibited a section as the die had. Was evaluated as “good”, and those that came out of the discharge port with both ends cut were defined as “both ends cut”.
【００２３】２．吸水率（防水性） シートを押し出し成形後、６５℃、１００％のスチーム
下で養生した後、更に１８０℃のオートクレーブ中で養
生した成形体を、１０５℃にて重量の変化がなくなるま
で２４時間以上乾燥し、重量（Ｂ）を測定後、重量変化
がなくなるまで２４時間以上２０℃の水中に浸漬後の重
量（Ａ）を測定し、次式により吸水率を求めた。2. Water absorption (waterproofness) After extruding a sheet, it is cured at 65 ° C under 100% steam, and then cured in an autoclave at 180 ° C for 24 hours until the weight change disappears at 105 ° C. After drying and measuring the weight (B), the weight (A) after being immersed in water at 20 ° C. for 24 hours or more was measured until the weight change disappeared, and the water absorption rate was calculated by the following formula.
【００２４】[0024]
【数１】 [Equation 1]
【００２５】３．表面状態の観察 シートの表面に繊維が突出せず、平らであるものを
「良」とした。3. Observation of surface condition A sheet having no fibers protruding on the surface thereof and having a flat surface was evaluated as “good”.
【００２６】[0026]
【表１】 [Table 1]
【００２７】[0027]
【発明の効果】以上、詳細に説明したように本発明の押
し出し成形用セメント組成物は、押し出し成形が容易に
行なえ、撥水防水性が優れ、表面が平滑な高耐久性セメ
ント成形体を得ることができる。As described in detail above, the cement composition for extrusion molding of the present invention can be easily extrusion-molded, is excellent in water repellency and water resistance, and has a highly durable cement molding having a smooth surface. be able to.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 (Ｃ０４Ｂ 28/02 16:06 Ｚ 2102−4Ｇ 24:38 Ｃ 2102−4Ｇ 24:42） Ｚ 2102−4Ｇ (72)発明者 石原 俊信 新潟県中頸城郡頸城村大字西福島28番地の １ 信越化学工業株式会社合成技術研究所 内 (72)発明者 遠藤 幹夫 新潟県中頸城郡頸城村大字西福島28番地の １ 信越化学工業株式会社合成技術研究所 内─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location (C04B 28/02 16:06 Z 2102-4G 24:38 C 2102-4G 24:42) Z 2102 −4G (72) Inventor Toshinobu Ishihara 28, Nishi-Fukushima, Chugiki-mura, Nakakubiki-gun, Niigata Prefecture 1 Shin-Etsu Chemical Co., Ltd., Synthetic Technology Laboratory No. 28 No. 1 Shin-Etsu Chemical Co., Ltd. Synthetic Technology Laboratory
Claims (4)
基、アリール基、置換基を有するアルキル基のうちから
選ばれる同一または異種の基、Ｒ2 は炭素数が１〜４の
アルキル基で同一の基、ｎは１〜３の整数を表す）で示
されるアルコキシシランおよび／または前記アルコキシ
シランの加水分解縮合物の１種類以上と、繊維状物質
と、押し出し成形用バインダとを、セメントモルタルに
混和してなることを特徴とする押し出し成形用セメント
組成物。1. A general formula: (R 1 is the same or different group selected from an alkyl group having 1 to 20 carbon atoms, an alkenyl group, an aryl group, and an alkyl group having a substituent, and R 2 is an alkyl group having 1 to 4 carbon atoms. The same group, n represents an integer of 1 to 3), one or more kinds of an alkoxysilane and / or a hydrolysis-condensation product of the alkoxysilane, a fibrous substance, and an extrusion molding binder, and cement mortar. A cement composition for extrusion molding, characterized in that it is mixed with.
び／または前記アルコキシシランの加水分解縮合物の割
合が０．０１〜５重量部、繊維状物質の割合が０〜１５
重量部、押し出し成形用バインダの割合が０．２〜２重
量部であることを特徴とする押し出し成形用セメント組
成物。2. The alkoxysilane according to claim 1 and / or the hydrolysis-condensation product of the alkoxysilane is 0.01 to 5 parts by weight, and the ratio of the fibrous substance is 0 to 15.
Cement composition for extrusion molding, characterized in that the proportion of parts by weight and the binder for extrusion molding is 0.2 to 2 parts by weight.
〜２０μｍ、長さが１〜１０ｍｍであることを特徴とす
る押し出し成形用セメント組成物。3. The fibrous substance according to claim 1 has a diameter of 1
A cement composition for extrusion molding, wherein the cement composition is -20 μm and the length is 1-10 mm.
ダがアルキルセルロースおよび／またはヒドロキシアル
キルアルキルセルロースであることを特徴とする押し出
し成形用セメント組成物。4. An extrusion molding cement composition, wherein the extrusion molding binder according to claim 1 is an alkyl cellulose and / or a hydroxyalkyl alkyl cellulose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23026691A JPH0570203A (en) | 1991-09-10 | 1991-09-10 | Cement composition containing alkoxysilanes for extrusion molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23026691A JPH0570203A (en) | 1991-09-10 | 1991-09-10 | Cement composition containing alkoxysilanes for extrusion molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0570203A true JPH0570203A (en) | 1993-03-23 |
Family
ID=16905109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23026691A Pending JPH0570203A (en) | 1991-09-10 | 1991-09-10 | Cement composition containing alkoxysilanes for extrusion molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0570203A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002090287A1 (en) * | 2001-05-08 | 2002-11-14 | Construction Research & Technology Gmbh | Waterproofed cementitious compositions and method of making the same |
| KR101102197B1 (en) * | 2009-06-02 | 2012-01-02 | 김선권 | Method For Manufacturing Inorganic Ceramic Agent For Heavy Duty Coating With Prolonged Lifetime |
-
1991
- 1991-09-10 JP JP23026691A patent/JPH0570203A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002090287A1 (en) * | 2001-05-08 | 2002-11-14 | Construction Research & Technology Gmbh | Waterproofed cementitious compositions and method of making the same |
| KR101102197B1 (en) * | 2009-06-02 | 2012-01-02 | 김선권 | Method For Manufacturing Inorganic Ceramic Agent For Heavy Duty Coating With Prolonged Lifetime |
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