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A platform for research: civil engineering, architecture and urbanism
ADDITIVE FOR HYDRAULIC COMPOSITION, AND CONCRETE COMPOSITION
PROBLEM TO BE SOLVED: To provide an additive for hydraulic composition which can sufficiently exhibit a long-term curability improvement effect of a hydraulic composition containing hydraulic cement and can reduce an addition amount of a cement admixture such as a polycarboxylic-based copolymer, and to provide a concrete composition containing the additive for hydraulic composition.SOLUTION: An additive for hydraulic composition being an additive for hydraulic composition containing hydraulic cement contains a hydraulic material dispersant containing a polycarboxylic-based copolymer containing a structural unit (I) derived from a specific unsaturated polyalkylene glycol-based monomer (a) and a structural unit (II) derived from a specific unsaturated carboxylic-based monomer (b), and a strength improving agent containing a polyacrylic acid (salt).SELECTED DRAWING: None
【課題】水硬性セメントを含有する水硬性組成物の長期硬化性向上効果を十分に発現することができるとともに、ポリカルボン酸系共重合体などのセメント混和剤の添加量を低減できる、水硬性組成物用添加剤を提供する。また、そのような水硬性組成物用添加剤を含むコンクリート組成物を提供する。【解決手段】本発明の水硬性組成物用添加剤は、水硬性セメントを含有する水硬性組成物の添加剤であって、特定の不飽和ポリアルキレングリコール系単量体（ａ）由来の構造単位（Ｉ）と特定の不飽和カルボン酸系単量体（ｂ）由来の構造単位（ＩＩ）とを含むポリカルボン酸系共重合体を含む水硬性材料分散剤と、ポリアクリル酸（塩）を含む強度向上剤と、を含む。【選択図】なし
ADDITIVE FOR HYDRAULIC COMPOSITION, AND CONCRETE COMPOSITION
PROBLEM TO BE SOLVED: To provide an additive for hydraulic composition which can sufficiently exhibit a long-term curability improvement effect of a hydraulic composition containing hydraulic cement and can reduce an addition amount of a cement admixture such as a polycarboxylic-based copolymer, and to provide a concrete composition containing the additive for hydraulic composition.SOLUTION: An additive for hydraulic composition being an additive for hydraulic composition containing hydraulic cement contains a hydraulic material dispersant containing a polycarboxylic-based copolymer containing a structural unit (I) derived from a specific unsaturated polyalkylene glycol-based monomer (a) and a structural unit (II) derived from a specific unsaturated carboxylic-based monomer (b), and a strength improving agent containing a polyacrylic acid (salt).SELECTED DRAWING: None
【課題】水硬性セメントを含有する水硬性組成物の長期硬化性向上効果を十分に発現することができるとともに、ポリカルボン酸系共重合体などのセメント混和剤の添加量を低減できる、水硬性組成物用添加剤を提供する。また、そのような水硬性組成物用添加剤を含むコンクリート組成物を提供する。【解決手段】本発明の水硬性組成物用添加剤は、水硬性セメントを含有する水硬性組成物の添加剤であって、特定の不飽和ポリアルキレングリコール系単量体（ａ）由来の構造単位（Ｉ）と特定の不飽和カルボン酸系単量体（ｂ）由来の構造単位（ＩＩ）とを含むポリカルボン酸系共重合体を含む水硬性材料分散剤と、ポリアクリル酸（塩）を含む強度向上剤と、を含む。【選択図】なし
ADDITIVE FOR HYDRAULIC COMPOSITION, AND CONCRETE COMPOSITION
水硬性組成物用添加剤およびコンクリート組成物
KOBAYASHI NOBUHIRO (author)
2017-09-14
Patent
Electronic Resource
Japanese
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