Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
To provide an admixture material composition containing a shrinkage reduction agent and a polycarboxylic acid-based water-reducing agent, capable of exhibiting excellent shrinkage reduction.SOLUTION: The admixture material composition contains a shrinkage reduction agent for a hydraulic material and a polycarboxylic acid-based water-reducing agent, wherein admixture material composition is characterized by that: the polycarboxylic acid-based water-reducing agent is a copolymer composed of a structural unit (a) derived from an unsaturated carboxylic acid-based monomer (A) and a structural unit (b1) derived from an unsaturated polyalkylene glycol-based monomer (B1) represented by the formula (1), has the content rate of the structural unit (a) in the copolymer of less than 7-20 mass% to the total of the structural units 100 mass%, and has a weight-average molecular weight of 10000-50000; and the shrinkage reduction agent for a hydraulic material contains at least one polymer chain selected from a polymer chain derived from an ethylenically unsaturated monomer, a polyalkylene glycol chain and a polyamine chain in the structure and is a compound satisfying a specified condition.SELECTED DRAWING: None
【課題】従来よりも優れた収縮低減性を発揮できる収縮低減剤とポリカルボン酸系減水剤とを含む混和材料組成物の提供。【解決手段】水硬性材料用収縮低減剤とポリカルボン酸系減水剤とを含む混和材料組成物であり、該ポリカルボン酸系減水剤は、不飽和カルボン酸系単量体（Ａ）由来の構造単位（ａ）と、式（１）で表される不飽和ポリアルキレングリコール系単量体（Ｂ１）由来の構造単位（ｂ１）と、を有する共重合体であり、該共重合体における構造単位（ａ）の含有割合が、全構造単位１００質量％に対して７〜２０質量％未満であり、重量平均分子量が１００００〜５００００であり、該水硬性材料用収縮低減剤は、エチレン性不飽和単量体由来の重合鎖、ポリアルキレングリコール鎖及びポリアミン鎖から選択される少なくとも１つの重合鎖を構造中に有し、特定の条件を満たす化合物である混和材料組成物。【選択図】なし
To provide an admixture material composition containing a shrinkage reduction agent and a polycarboxylic acid-based water-reducing agent, capable of exhibiting excellent shrinkage reduction.SOLUTION: The admixture material composition contains a shrinkage reduction agent for a hydraulic material and a polycarboxylic acid-based water-reducing agent, wherein admixture material composition is characterized by that: the polycarboxylic acid-based water-reducing agent is a copolymer composed of a structural unit (a) derived from an unsaturated carboxylic acid-based monomer (A) and a structural unit (b1) derived from an unsaturated polyalkylene glycol-based monomer (B1) represented by the formula (1), has the content rate of the structural unit (a) in the copolymer of less than 7-20 mass% to the total of the structural units 100 mass%, and has a weight-average molecular weight of 10000-50000; and the shrinkage reduction agent for a hydraulic material contains at least one polymer chain selected from a polymer chain derived from an ethylenically unsaturated monomer, a polyalkylene glycol chain and a polyamine chain in the structure and is a compound satisfying a specified condition.SELECTED DRAWING: None
【課題】従来よりも優れた収縮低減性を発揮できる収縮低減剤とポリカルボン酸系減水剤とを含む混和材料組成物の提供。【解決手段】水硬性材料用収縮低減剤とポリカルボン酸系減水剤とを含む混和材料組成物であり、該ポリカルボン酸系減水剤は、不飽和カルボン酸系単量体（Ａ）由来の構造単位（ａ）と、式（１）で表される不飽和ポリアルキレングリコール系単量体（Ｂ１）由来の構造単位（ｂ１）と、を有する共重合体であり、該共重合体における構造単位（ａ）の含有割合が、全構造単位１００質量％に対して７〜２０質量％未満であり、重量平均分子量が１００００〜５００００であり、該水硬性材料用収縮低減剤は、エチレン性不飽和単量体由来の重合鎖、ポリアルキレングリコール鎖及びポリアミン鎖から選択される少なくとも１つの重合鎖を構造中に有し、特定の条件を満たす化合物である混和材料組成物。【選択図】なし
ADMIXTURE MATERIAL COMPOSITION
混和材料組成物
MASANAGA MARI (Autor:in)
28.03.2019
Patent
Elektronische Ressource
Japanisch
IPC:
C04B
Kalk
,
LIME
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C08F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
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C08L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
,
Massen auf Basis makromolekularer Verbindungen