A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CEMENT ADMIXTURE AND CEMENT COMPOSITION CONTAINING THE SAME
PROBLEM TO BE SOLVED: To provide a cement admixture having an increased mix speed during mixing a material of a cement composition, excellent in slump loss inhibiting performance and capable of suppressing increase of viscosity of the cement composition, and a cement composition containing the same.SOLUTION: There is a cement admixture containing following (A) component and (B) component. (A) component: a polycarboxylic copolymer obtained by copolymerizing 1 to 97 wt.% of a monomer (I) represented by the following general formula (1), 1 to 97 wt.% of a monomer (II) represented by the following general formula (2), 0.1 to 50 wt.% of an unsaturated carboxylic acid-based monomer (III), and 0 to 50 wt.% of another monomer (IV) copolymerizable with monomers (I) to (III), or a salt thereof. R-O-(AO)-R(1). (B) component: a copolymer capable of copolymerizing hydroxy ethylacrylate and/or hydroxypropyl acrylate and the monomer (I).SELECTED DRAWING: None
【課題】セメント組成物の材料を混練する際の混練速度を早め、スランプロス抑制性能に優れ、セメント組成物の粘性の増加を抑制することができるセメント混和剤およびこれを含有するセメント組成物を提供する。【解決手段】下記（Ａ）成分および（Ｂ）成分を含有するセメント混和剤。（Ａ）成分：下記一般式（１）で表される単量体（Ｉ）１〜９７重量％、下記一般式（２）で表される単量体（ＩＩ）１〜９７重量％、不飽和カルボン酸系単量体（ＩＩＩ）０．１〜５０重量％、および、単量体（Ｉ）〜（ＩＩＩ）と共重合可能なその他の単量体（ＩＶ）０〜５０重量％を共重合させることにより得られるポリカルボン酸系共重合体またはその塩Ｒ1−Ｏ−（Ａ1Ｏ）n1−Ｒ2・・・（１）【化１】（Ｂ）成分：ヒドロキシエチルアクリレートおよび／またはヒドロキシプロピルアクリレートと単量体（Ｉ）とを共重合させることにより得られる共重合体【選択図】なし
CEMENT ADMIXTURE AND CEMENT COMPOSITION CONTAINING THE SAME
PROBLEM TO BE SOLVED: To provide a cement admixture having an increased mix speed during mixing a material of a cement composition, excellent in slump loss inhibiting performance and capable of suppressing increase of viscosity of the cement composition, and a cement composition containing the same.SOLUTION: There is a cement admixture containing following (A) component and (B) component. (A) component: a polycarboxylic copolymer obtained by copolymerizing 1 to 97 wt.% of a monomer (I) represented by the following general formula (1), 1 to 97 wt.% of a monomer (II) represented by the following general formula (2), 0.1 to 50 wt.% of an unsaturated carboxylic acid-based monomer (III), and 0 to 50 wt.% of another monomer (IV) copolymerizable with monomers (I) to (III), or a salt thereof. R-O-(AO)-R(1). (B) component: a copolymer capable of copolymerizing hydroxy ethylacrylate and/or hydroxypropyl acrylate and the monomer (I).SELECTED DRAWING: None
【課題】セメント組成物の材料を混練する際の混練速度を早め、スランプロス抑制性能に優れ、セメント組成物の粘性の増加を抑制することができるセメント混和剤およびこれを含有するセメント組成物を提供する。【解決手段】下記（Ａ）成分および（Ｂ）成分を含有するセメント混和剤。（Ａ）成分：下記一般式（１）で表される単量体（Ｉ）１〜９７重量％、下記一般式（２）で表される単量体（ＩＩ）１〜９７重量％、不飽和カルボン酸系単量体（ＩＩＩ）０．１〜５０重量％、および、単量体（Ｉ）〜（ＩＩＩ）と共重合可能なその他の単量体（ＩＶ）０〜５０重量％を共重合させることにより得られるポリカルボン酸系共重合体またはその塩Ｒ1−Ｏ−（Ａ1Ｏ）n1−Ｒ2・・・（１）【化１】（Ｂ）成分：ヒドロキシエチルアクリレートおよび／またはヒドロキシプロピルアクリレートと単量体（Ｉ）とを共重合させることにより得られる共重合体【選択図】なし
CEMENT ADMIXTURE AND CEMENT COMPOSITION CONTAINING THE SAME
セメント混和剤およびこれを含有するセメント組成物
YOKOYAMA SHIGEKI (author) / HOSAKA HIDEO (author) / YAMAGUCHI TAKASHI (author) / TAMURA SUMIO (author)
2016-08-12
Patent
Electronic Resource
Japanese
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