A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CEMENT MORTAR COMPOSITION
PROBLEM TO BE SOLVED: To provide cement mortar which, as required of a cement mortar composition in rationalization of a work site, shows a less temporal change of flowability and has good workability in trowel application and the like, high water retention and sagging resistance.SOLUTION: There are provided: a cement mortar composition which contains water-soluble cellulose ether and a starch derivative containing tapioca as a raw material, cement, aggregate and water; the cement mortar composition which preferably further contains polyacrylamide; the cement mortar composition, where the water-soluble cellulose ether is hydroxyalkyl cellulose, the hydroxyalkyl cellulose is hydroxypropyl methylcellulose and/or hydroxyethylmethyl cellulose; and the cement mortar composition, where an addition ratio of the water-soluble cellulose ether and the starch derivative containing tapioca as a raw material is 51:49 to 99:1 as a mass ratio.SELECTED DRAWING: None
【課題】作業現場の合理化において、セメントモルタル組成物に要求される、流動性の経時的変化が少なく、鏝塗り等での良好な作業性、高い保水性、ダレ防止性を持つセメントモルタルの提供。【解決手段】水溶性セルロースエーテル、タピオカを原料とする澱粉誘導体、セメント、骨材及び水を含むセメントモルタル組成物。更に、ポリアクリルアミドを含むことが好ましいセメントモルタル組成物。前記水溶性セルロースエーテルが、ヒドロキシアルキルアルキルセルロースであり、前記ヒドロキシアルキルアルキルセルロースが、ヒドロキシプロピルメチルセルロース及び／又はヒドロキシエチルメチルセルロースである、セメントモルタル組成物。前記水溶性セルロースエーテルとタピオカを原料とする澱粉誘導体との添加比率が、質量比として５１：４９〜９９：１である、セメントモルタル組成物。【選択図】なし
CEMENT MORTAR COMPOSITION
PROBLEM TO BE SOLVED: To provide cement mortar which, as required of a cement mortar composition in rationalization of a work site, shows a less temporal change of flowability and has good workability in trowel application and the like, high water retention and sagging resistance.SOLUTION: There are provided: a cement mortar composition which contains water-soluble cellulose ether and a starch derivative containing tapioca as a raw material, cement, aggregate and water; the cement mortar composition which preferably further contains polyacrylamide; the cement mortar composition, where the water-soluble cellulose ether is hydroxyalkyl cellulose, the hydroxyalkyl cellulose is hydroxypropyl methylcellulose and/or hydroxyethylmethyl cellulose; and the cement mortar composition, where an addition ratio of the water-soluble cellulose ether and the starch derivative containing tapioca as a raw material is 51:49 to 99:1 as a mass ratio.SELECTED DRAWING: None
【課題】作業現場の合理化において、セメントモルタル組成物に要求される、流動性の経時的変化が少なく、鏝塗り等での良好な作業性、高い保水性、ダレ防止性を持つセメントモルタルの提供。【解決手段】水溶性セルロースエーテル、タピオカを原料とする澱粉誘導体、セメント、骨材及び水を含むセメントモルタル組成物。更に、ポリアクリルアミドを含むことが好ましいセメントモルタル組成物。前記水溶性セルロースエーテルが、ヒドロキシアルキルアルキルセルロースであり、前記ヒドロキシアルキルアルキルセルロースが、ヒドロキシプロピルメチルセルロース及び／又はヒドロキシエチルメチルセルロースである、セメントモルタル組成物。前記水溶性セルロースエーテルとタピオカを原料とする澱粉誘導体との添加比率が、質量比として５１：４９〜９９：１である、セメントモルタル組成物。【選択図】なし
CEMENT MORTAR COMPOSITION
セメントモルタル組成物
KONISHI HIDEKAZU (author) / YAMAKAWA TSUTOMU (author)
2017-09-14
Patent
Electronic Resource
Japanese
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