JPH0313184B2 - - Google Patents
Info
- Publication number
- JPH0313184B2 JPH0313184B2 JP58227997A JP22799783A JPH0313184B2 JP H0313184 B2 JPH0313184 B2 JP H0313184B2 JP 58227997 A JP58227997 A JP 58227997A JP 22799783 A JP22799783 A JP 22799783A JP H0313184 B2 JPH0313184 B2 JP H0313184B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- cement
- parts
- water
- sepiolite
- 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
- 239000004113 Sepiolite Substances 0.000 claims description 11
- 239000004568 cement Substances 0.000 claims description 11
- 229910052624 sepiolite Inorganic materials 0.000 claims description 11
- 235000019355 sepiolite Nutrition 0.000 claims description 11
- 239000011083 cement mortar Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 6
- 229920002678 cellulose Polymers 0.000 claims description 2
- 239000001913 cellulose Substances 0.000 claims description 2
- 229920003086 cellulose ether Polymers 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 239000000835 fiber Substances 0.000 description 5
- 239000004570 mortar (masonry) Substances 0.000 description 5
- 239000010425 asbestos Substances 0.000 description 4
- 239000000839 emulsion Substances 0.000 description 4
- 229910052895 riebeckite Inorganic materials 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 235000010755 mineral Nutrition 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 229920001479 Hydroxyethyl methyl cellulose Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000004679 hydroxides Chemical class 0.000 description 2
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 description 2
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 description 2
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 description 2
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 230000009974 thixotropic effect Effects 0.000 description 2
- 229910018626 Al(OH) Inorganic materials 0.000 description 1
- -1 Al(OH) 3 Chemical class 0.000 description 1
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical group COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 238000006253 efflorescence Methods 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000011396 hydraulic cement Substances 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 229920013819 hydroxyethyl ethylcellulose Polymers 0.000 description 1
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 1
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 229910052919 magnesium silicate Inorganic materials 0.000 description 1
- ZADYMNAVLSWLEQ-UHFFFAOYSA-N magnesium;oxygen(2-);silicon(4+) Chemical compound [O-2].[O-2].[O-2].[Mg+2].[Si+4] ZADYMNAVLSWLEQ-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 206010037844 rash Diseases 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/042—Magnesium silicates, e.g. talc, sepiolite
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
本発明は、特にだれ抵抗性にすぐれたセメント
モルタル組成物に関するものである。
近年、セメントモルタルの施工に関しては、工期
短縮の要求、断熱、補修工事の増加にともない、
モルタルの厚塗りの必要性が増している。また、
タイルの大型化、重量化、直張り工法の増加によ
りタイルのずり落ちの防止も望まれている。
従来、セメントモルタルに添加配合されるだれ
抵抗剤としては、石綿、パルプ繊維、有機合成繊
維、Al（OH）3等のゼラチン性水酸化物、Al2
（SO4）3等の金属塩、ペントナイト等の鉱物が知
られている。しかし、石綿は発ガン作用があるた
め使用が制限されつつあるし、パルプ繊維、有機
繊維はだれ抵抗性を示すまで添加すると、セメン
トモルタル中へのそれら繊維の分散がうまくゆか
なかつたり、仕上感が悪くなり好ましくない。ま
たゼラチン性水酸化物は効果が少ないばかりでな
く、強度低下、白華の原因となるので好ましくな
い。
Al2（SO4）3等の金属塩はセメントの硬化を促進
する働きがあり、ワーカービリテイの経時変化が
大きくなつたり、クラツクの原因となる。また、
ベントナイトはチキソトロピー性を示すが、セメ
ント中のCaイオンと会うと効果が低下し、だれ
抵抗性を示すまで添加すると、添加水が多くな
り、クラツクが多くなつたり、強度低下をきたす
ので好ましくない。
本発明者らは、かかる従来の不利欠点を解決す
べく鋭意研究を重ねた結果、本発明に到達したも
ので、これはセメント100重量部に対して、水溶
性非イオンセルロースエーテル0.02〜３重量部と
セピオライト0.05〜10重量部と水40〜60重量部と
を添加してなるセメントモルタル組成物に関する
ものでる。
この本発明によれば、従来のような不利をとも
なうことなく、下記(1)〜(5)に列記するすぐれた効
果を得ることができる。
(1) 一回の施工で厚塗りができ、だれ、ボタ落ち
が少ない、
(2) コテ切れもよく仕上りが良好となる、
(3) タイル張付け時のタイルのずり落ちが少な
く、作業性、仕上りが良好である、
(4) モルタル表面の皮張りが少なく、タイルとの
接着がよい、
(5) 水／セメント比が多くならず、保水性にすぐ
れ、強度低下、クラツク発生が少ない、
セルロースエーテルと共にセピオライトを添加
することにより上記した諸効果が発現される理由
は、セピオライトの構造が石綿や他の鉱物と異な
り、レンガ積みの結晶構造をしており、水に分散
すると、柱状の回転だ円体を形成し、ゲル状とな
り、独特な大きなチキソトロピー性を示すことに
よるもので、これはせん断力がかかると流動しや
すくなるが、静止すると高い粘性を示し、結果と
してセメントモルタルはすぐれただれ抵抗性を持
つことになる。
水溶性非イオンセルロースエーテルは、だれ抵
抗性を示すものではないが保水剤として一般に用
いられているもので、セメントモルタルに可塑性
を与え適当な量の空気をまき込み、作業性も改良
する。また、タイルとの密着性、下地との接着力
も向上させるもので、セピオライトと併用するこ
とにより始めて上記のようなすぐれた特長が発揮
される。
本発明に用いるセメントモルタルのセメント
は、普通ポルトランドセメント以外に早強セメン
ト、フライアツシユセメント、アルミナセメント
等の水硬性セメントや半水石こう、消石灰、炭酸
カルシウム、ドロマイトプラスター、粘土等を併
用してもよい。さらに骨材として、川砂、山砂、
けい砂、寒水砂、軽量骨材などが用いられる。そ
の他エマルジヨン、繊維物質等を配合することは
差支えない。
水溶性非イオンセルロースエーテルとしては、
メチルセルロース、ヒドロキシプロピルメチルセ
ルロース、ヒドロキシエチルエチルセルロース、
ヒドロキシエチルメチルセルロース、ヒドロキシ
エチルセルロース、ヒドロキシプロピルセルロー
ス等が用いられる。
セピオライトは、石綿やタルクとは異なつた繊
維状のけい酸マグネシウム系鉱物であつて、この
ものは次式
（H2O）4（OH）4Mg8Si12O30・６〜8H2O
の組成を有する天然に産する粘土鉱物である。
水溶性非イオンセルロースエーテルの添加量
は、下地、気象条件、用途等によつて異なるが、
保水性があまり要求されない場合はセメント100
重量部あたり、0.02〜0.3重量部の範囲でよいが、
保水性を要求する場合はセメント100重量部あた
り、0.3〜３重量部の範囲で使用することが望ま
しい。
セピオライトの添加量は要求するだれ抵抗性に
よつて加減されるが、あまり多く添加すると添加
水量が多くなり、クラツク、接着強度低下等の不
都合が生じる。したがつて、だれ抵抗性の度合に
もよるが、セメント100重量部あたり、0.05〜10
重量部（好ましくは0.1〜５重量部）とすること
が必要とされる。
実施例 １
第１表に示す各配合のタイル張付けモルタル
を、垂直に立てたコンクリート下地に５mm厚に塗
布した直後小口平タイルを張り、この小口平タイ
ルに取りつけた重りの受皿に重りを徐々に増加し
て入れ、タイルがずり始めた時の重りの量を調べ
た。さらに、モルタルを塗布して15分後にタイル
を張りつけた場合のタイルの接着強度（28日材
令）を測定した。結果はいずれも第１表に示すと
おりであつた。
なお、添加水量は塗り易い軟らかさすなわちそ
れぞれ第１表に示す量とした。
第１表中のセルロースエーテル、セピオライト
としてはそれぞれ下記のものを使用した。
セルロースエーテル：ヒドロキシプロピルメチル
セルロース、信越化学工業(株)製商品名
90SH−15000使用
セピオライト：武田薬品工業(株)製商品名エードプ
ラスML−Ｋ使用
The present invention particularly relates to a cement mortar composition with excellent sag resistance. In recent years, with regard to cement mortar construction, there has been a demand for shorter construction times, insulation, and an increase in repair work.
The need for thick coating of mortar is increasing. Also,
As tiles become larger and heavier, and the direct laying method increases, it is also desired to prevent tiles from slipping off. Traditionally, sag resistance agents added to cement mortar include asbestos, pulp fibers, organic synthetic fibers, gelatinous hydroxides such as Al(OH) 3 , and Al2 .
Metal salts such as (SO 4 ) 3 and minerals such as pentonite are known. However, the use of asbestos is being restricted due to its carcinogenic properties, and if pulp fibers and organic fibers are added to the point where they exhibit sag resistance, the dispersion of these fibers into cement mortar may not be successful or the finish may deteriorate. It gets worse and I don't like it. Further, gelatinous hydroxides are not preferred because they are not only less effective but also cause a decrease in strength and efflorescence. Metal salts such as Al 2 (SO 4 ) 3 have the function of accelerating the hardening of cement, leading to significant changes in workability over time and causing cracks. Also,
Bentonite exhibits thixotropic properties, but its effectiveness decreases when it meets Ca ions in cement, and if it is added until it exhibits sagging resistance, it is not desirable because it increases the amount of water added, resulting in more cracks and a decrease in strength. The present inventors have conducted intensive research to solve the conventional disadvantages, and have arrived at the present invention. The present invention relates to a cement mortar composition containing 0.05 to 10 parts by weight of sepiolite, and 40 to 60 parts by weight of water. According to the present invention, the excellent effects listed in (1) to (5) below can be obtained without the disadvantages of the conventional method. (1) A thick coat can be applied in one application, with less dripping and dripping. (2) The trowel cuts easily and gives a good finish. (3) There is less tile slipping during tile installation, making it easier to work with. Good finish. (4) Less skinning on the mortar surface, good adhesion to tiles. (5) Excellent water retention without high water/cement ratio, less strength loss and cracking. Cellulose. The reason why the above-mentioned effects are achieved by adding sepiolite with ether is that sepiolite has a brick-like crystal structure, unlike asbestos and other minerals, and when dispersed in water, it forms a rotating columnar structure. This is due to the fact that it forms a circular shape, becomes gel-like, and exhibits a unique large thixotropic property.This is because it becomes easy to flow when shear force is applied, but exhibits high viscosity when stationary, resulting in cement mortar having excellent sag resistance. will have sex. Water-soluble nonionic cellulose ether is generally used as a water retention agent although it does not exhibit sag resistance, and it imparts plasticity to cement mortar, incorporates an appropriate amount of air, and improves workability. It also improves the adhesion to tiles and the adhesion to the base, and the above-mentioned excellent features can only be demonstrated when used in combination with sepiolite. The cement used in the cement mortar used in the present invention may include, in addition to ordinary Portland cement, hydraulic cement such as early strength cement, fly ash cement, and alumina cement, hemihydrate gypsum, slaked lime, calcium carbonate, dolomite plaster, clay, etc. good. In addition, as aggregates, river sand, mountain sand,
Silica sand, cold water sand, lightweight aggregate, etc. are used. There is no problem in blending other emulsions, fiber substances, etc. As a water-soluble nonionic cellulose ether,
Methyl cellulose, hydroxypropyl methyl cellulose, hydroxyethylethyl cellulose,
Hydroxyethylmethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, etc. are used. Sepiolite is a fibrous magnesium silicate mineral that is different from asbestos and talc . It is a naturally occurring clay mineral with the following composition: The amount of water-soluble nonionic cellulose ether added varies depending on the substrate, weather conditions, use, etc.
Cement 100 if water retention is not required
It may be in the range of 0.02 to 0.3 parts by weight per part by weight, but
When water retention is required, it is preferable to use it in a range of 0.3 to 3 parts by weight per 100 parts by weight of cement. The amount of sepiolite added is adjusted depending on the desired sag resistance, but if too much is added, the amount of water added will increase, causing problems such as cracks and reduced adhesive strength. Therefore, depending on the degree of sag resistance, 0.05 to 10 parts per 100 parts by weight of cement.
parts by weight (preferably 0.1 to 5 parts by weight). Example 1 Immediately after applying the tile-laying mortar of each composition shown in Table 1 to a thickness of 5 mm on a vertically erected concrete base, lay a flat tile on the edges, and gradually place a weight on the weight tray attached to the flat tile. I added more weight and checked the amount of weight when the tiles started to shift. Furthermore, the adhesive strength of the tiles (28 days old) was measured when tiles were attached 15 minutes after mortar was applied. All the results were as shown in Table 1. The amount of water added was set to the amount shown in Table 1 to ensure softness for easy application. As cellulose ether and sepiolite in Table 1, the following were used, respectively. Cellulose ether: Hydroxypropyl methyl cellulose, trade name manufactured by Shin-Etsu Chemical Co., Ltd.
90SH-15000 used sepiolite: Used Takeda Pharmaceutical Co., Ltd. product name AED+ ML-K
【表】
実施例 ２
第２表に示す各配合のタイル張付けモルタルを
ラス下地板に塗布し、だれが生じるまで厚塗りし
その厚みを測定した。また塗布物を35℃、50％
RHで養生し、28日経過後にクラツクの発生を調
べた。結果は第２表に示すとおりであつた。
なお、添加水量は塗り易い軟らかさすなわちそ
れぞれ第２表に示す量とした。
第２表中のエマルジヨン、セルロースエーテル
およびセピオライトとしてはそれぞれ下記のもの
を利用した。
エマルジヨン：エチレン−酢酸ビニル共重合体エ
マルジヨン（固形分濃度45重量％）使
用
セルロースエーテル：２％水溶液の20℃における
粘度が2000cpsであるヒドロキエチル
メチルセルロース使用
セピオライト：武田薬品工業(株)商品名エードプラ
スML−100D使用[Table] Example 2 Tile mounting mortar of each composition shown in Table 2 was applied to a lath base board, thickly applied until sagging occurred, and the thickness was measured. Also, the applied material was heated to 35℃ and 50%
They were cured under RH, and the occurrence of cracks was examined after 28 days. The results were as shown in Table 2. The amount of water added was set to the amount shown in Table 2 to ensure softness for easy application. As the emulsion, cellulose ether, and sepiolite in Table 2, the following were used, respectively. Emulsion: Ethylene-vinyl acetate copolymer emulsion (solid concentration 45% by weight) Cellulose ether: Hydroxyethyl methyl cellulose whose viscosity at 20°C is 2000 cps in a 2% aqueous solution Sepiolite: Takeda Pharmaceutical Co., Ltd. (trade name: AED+) Using ML-100D
Claims (1)
ンセルロース0.02〜３重量部とセピオライト0.05
〜10重量部と水40〜60重量部とを添加してなるセ
メントモルタル組成物。1. 0.02 to 3 parts by weight of water-soluble nonionic cellulose and 0.05 parts by weight of sepiolite per 100 parts by weight of cement.
A cement mortar composition comprising ~10 parts by weight and 40 to 60 parts by weight of water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22799783A JPS60122758A (en) | 1983-12-02 | 1983-12-02 | Cement mortar composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22799783A JPS60122758A (en) | 1983-12-02 | 1983-12-02 | Cement mortar composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60122758A JPS60122758A (en) | 1985-07-01 |
| JPH0313184B2 true JPH0313184B2 (en) | 1991-02-21 |
Family
ID=16869555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22799783A Granted JPS60122758A (en) | 1983-12-02 | 1983-12-02 | Cement mortar composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60122758A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01141855A (en) * | 1987-11-26 | 1989-06-02 | Sekisui Chem Co Ltd | Production of cement molded body |
| JPH01141858A (en) * | 1987-11-26 | 1989-06-02 | Sekisui Chem Co Ltd | Cement composition |
| JPH01141857A (en) * | 1987-11-26 | 1989-06-02 | Sekisui Chem Co Ltd | Cement composition |
| JP4937520B2 (en) * | 2005-03-24 | 2012-05-23 | 電気化学工業株式会社 | Cement admixture, cement composition, and cement mortar using the same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS501524A (en) * | 1973-05-12 | 1975-01-09 | ||
| JPS5154619A (en) * | 1974-11-08 | 1976-05-13 | Shinetsu Chemical Co | SEMENTOKEISEIKEITAINO SEIZOHOHO |
| JPS5585442A (en) * | 1978-12-18 | 1980-06-27 | Takeda Chemical Industries Ltd | Soft cement mortar |
| JPS5826071A (en) * | 1981-08-06 | 1983-02-16 | 信越化学工業株式会社 | Cement product |
-
1983
- 1983-12-02 JP JP22799783A patent/JPS60122758A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS501524A (en) * | 1973-05-12 | 1975-01-09 | ||
| JPS5154619A (en) * | 1974-11-08 | 1976-05-13 | Shinetsu Chemical Co | SEMENTOKEISEIKEITAINO SEIZOHOHO |
| JPS5585442A (en) * | 1978-12-18 | 1980-06-27 | Takeda Chemical Industries Ltd | Soft cement mortar |
| JPS5826071A (en) * | 1981-08-06 | 1983-02-16 | 信越化学工業株式会社 | Cement product |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60122758A (en) | 1985-07-01 |
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