A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CHEMICAL ADMIXTURE SUCH AS CEMENT SOLIDIFICATION MATERIAL
To provide a slurry of a cement solidification material excellent in fluidity of a slurry of a cement solidification material and so on, difficult to separate and precipitate a solid content of the slurry, and capable of securing excellent pumpability of the slurry for a long time.SOLUTION: The admixture for cement solidification materials and the like contains (A) a polycarboxylic acid polymer A having structural units derived from polyamide polyamine or the like, and (B) a polycarboxylic acid polymer B having structural units derived from a polyalkylene glycol alkenyl ether monomer, structural units derived from an unsaturated dicarboxylic acid monomer, and structural units derived from an unsaturated carboxylic acid ester monomer, wherein the ratio of the structural units derived from the unsaturated dicarboxylic acid monomer:the structural units derived from the unsaturated carboxylic acid ester monomer=1 to 50 mass %:99 to 50 mass %, and the admixture for cement solidification materials and the like contains the polymer A and the polymer B in a ratio of A/B=60/40 to 75/25 (mass ratio).SELECTED DRAWING: None
【課題】セメント系固化材等のスラリーが流動性に優れるとともに、該スラリーの固形分が分離沈降しにくく、該スラリーにおいて優れた圧送性を長時間確保することができるセメント系固化材等のスラリーを提供すること。【解決手段】（Ａ）ポリアミドポリアミン等に由来する構造単位を有するポリカルボン酸系重合体Ａ、並びに、（Ｂ）ポリアルキレングリコールアルケニルエーテル系単量体由来の構造単位、不飽和ジカルボン酸系単量体由来の構造単位及び不飽和カルボン酸エステル系単量体由来の構造単位を有するポリカルボン酸系重合体Ｂであって、前記不飽和ジカルボン酸系単量体由来の構造単位：前記不飽和カルボン酸エステル系単量体由来の構造単位＝１～５０質量％：９９～５０質量％であるポリカルボン酸系重合体Ｂを含有するセメント系固化材等用混和剤であって、前記重合体Ａと重合体ＢとをＡ／Ｂ＝６０／４０～７５／２５（質量比）の割合で含有する、セメント系固化材等用混和剤。【選択図】なし
CHEMICAL ADMIXTURE SUCH AS CEMENT SOLIDIFICATION MATERIAL
To provide a slurry of a cement solidification material excellent in fluidity of a slurry of a cement solidification material and so on, difficult to separate and precipitate a solid content of the slurry, and capable of securing excellent pumpability of the slurry for a long time.SOLUTION: The admixture for cement solidification materials and the like contains (A) a polycarboxylic acid polymer A having structural units derived from polyamide polyamine or the like, and (B) a polycarboxylic acid polymer B having structural units derived from a polyalkylene glycol alkenyl ether monomer, structural units derived from an unsaturated dicarboxylic acid monomer, and structural units derived from an unsaturated carboxylic acid ester monomer, wherein the ratio of the structural units derived from the unsaturated dicarboxylic acid monomer:the structural units derived from the unsaturated carboxylic acid ester monomer=1 to 50 mass %:99 to 50 mass %, and the admixture for cement solidification materials and the like contains the polymer A and the polymer B in a ratio of A/B=60/40 to 75/25 (mass ratio).SELECTED DRAWING: None
【課題】セメント系固化材等のスラリーが流動性に優れるとともに、該スラリーの固形分が分離沈降しにくく、該スラリーにおいて優れた圧送性を長時間確保することができるセメント系固化材等のスラリーを提供すること。【解決手段】（Ａ）ポリアミドポリアミン等に由来する構造単位を有するポリカルボン酸系重合体Ａ、並びに、（Ｂ）ポリアルキレングリコールアルケニルエーテル系単量体由来の構造単位、不飽和ジカルボン酸系単量体由来の構造単位及び不飽和カルボン酸エステル系単量体由来の構造単位を有するポリカルボン酸系重合体Ｂであって、前記不飽和ジカルボン酸系単量体由来の構造単位：前記不飽和カルボン酸エステル系単量体由来の構造単位＝１～５０質量％：９９～５０質量％であるポリカルボン酸系重合体Ｂを含有するセメント系固化材等用混和剤であって、前記重合体Ａと重合体ＢとをＡ／Ｂ＝６０／４０～７５／２５（質量比）の割合で含有する、セメント系固化材等用混和剤。【選択図】なし
CHEMICAL ADMIXTURE SUCH AS CEMENT SOLIDIFICATION MATERIAL
セメント系固化材等用混和剤
HAYAKAWA TAKAYUKI (author) / KOBAYASHI YOSHISORA (author) / TAKASHIMA MOTOYUKI (author) / OSUMI MANABU (author) / KOBAYASHI TOMOJI (author)
2024-10-15
Patent
Electronic Resource
Japanese
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