Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
VISCOSITY-REDUCING AGENT FOR POZZOLANIC SUBSTANCE-CONTAINING HYDRAULIC COMPOSITION
PROBLEM TO BE SOLVED: To provide a viscosity-reducing agent for a pozzolanic substance-containing hydraulic composition that can sufficiently reduce a viscosity of a hydraulic composition containing hydraulic cement and a pozzolanic substance and to provide a concrete composition including the viscosity-reducing agent for a pozzolanic substance-containing hydraulic composition.SOLUTION: The viscosity-reducing agent for a pozzolanic substance-containing hydraulic composition is a viscosity-reducing agent for reducing a viscosity of a hydraulic composition containing hydraulic cement and a pozzolanic substance, and includes (A) a polycarboxylic acid copolymer including (I) a structural unit derived from (a) a specific unsaturated polyalkylene glycol monomer and (II) a structural unit derived from (b) a specific unsaturated carboxylic acid monomer, in which an average addition mole number n of oxyalkylene groups in the specific unsaturated polyalkylene glycol monomer (a) is 1-40, and a mass average molecular weight of the polycarboxylic acid copolymer (A) is 20,000 or less.SELECTED DRAWING: Figure 1
【課題】水硬性セメントとポゾラン性物質を含有する水硬性組成物の粘性を十分に低減することができるポゾラン性物質含有水硬性組成物用粘性低減剤、及び、前記ポゾラン性物質含有水硬性組成物用粘性低減剤を含むコンクリート組成物の提供。【解決手段】水硬性セメントとポゾラン性物質を含有する水硬性組成物の粘性を低減するための粘性低減剤であって、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（Ａ）を含み、該特定の不飽和ポリアルキレングリコール系単量体（ａ）中のオキシアルキレン基の平均付加モル数ｎが１〜４０であり、該ポリカルボン酸系共重合体（Ａ）の質量平均分子量が２００００以下であるポゾラン性物質含有水硬性組成物用粘性低減剤。【選択図】図１
VISCOSITY-REDUCING AGENT FOR POZZOLANIC SUBSTANCE-CONTAINING HYDRAULIC COMPOSITION
PROBLEM TO BE SOLVED: To provide a viscosity-reducing agent for a pozzolanic substance-containing hydraulic composition that can sufficiently reduce a viscosity of a hydraulic composition containing hydraulic cement and a pozzolanic substance and to provide a concrete composition including the viscosity-reducing agent for a pozzolanic substance-containing hydraulic composition.SOLUTION: The viscosity-reducing agent for a pozzolanic substance-containing hydraulic composition is a viscosity-reducing agent for reducing a viscosity of a hydraulic composition containing hydraulic cement and a pozzolanic substance, and includes (A) a polycarboxylic acid copolymer including (I) a structural unit derived from (a) a specific unsaturated polyalkylene glycol monomer and (II) a structural unit derived from (b) a specific unsaturated carboxylic acid monomer, in which an average addition mole number n of oxyalkylene groups in the specific unsaturated polyalkylene glycol monomer (a) is 1-40, and a mass average molecular weight of the polycarboxylic acid copolymer (A) is 20,000 or less.SELECTED DRAWING: Figure 1
【課題】水硬性セメントとポゾラン性物質を含有する水硬性組成物の粘性を十分に低減することができるポゾラン性物質含有水硬性組成物用粘性低減剤、及び、前記ポゾラン性物質含有水硬性組成物用粘性低減剤を含むコンクリート組成物の提供。【解決手段】水硬性セメントとポゾラン性物質を含有する水硬性組成物の粘性を低減するための粘性低減剤であって、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（Ａ）を含み、該特定の不飽和ポリアルキレングリコール系単量体（ａ）中のオキシアルキレン基の平均付加モル数ｎが１〜４０であり、該ポリカルボン酸系共重合体（Ａ）の質量平均分子量が２００００以下であるポゾラン性物質含有水硬性組成物用粘性低減剤。【選択図】図１
VISCOSITY-REDUCING AGENT FOR POZZOLANIC SUBSTANCE-CONTAINING HYDRAULIC COMPOSITION
ポゾラン性物質含有水硬性組成物用粘性低減剤
KOBAYASHI NOBUHIRO (Autor:in) / OKADA ATSUSHI (Autor:in)
25.05.2017
Patent
Elektronische Ressource
Japanisch
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