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A platform for research: civil engineering, architecture and urbanism
Concrete shrinkage reducing agent suitable for plateau climate environment
The invention provides a concrete shrinkage reducing agent suitable for a plateau climatic environment. The concrete shrinkage reducing agent is prepared from a monomer A, a monomer B and a monomer C through a free radical copolymerization reaction, the molar ratio of the monomer A to the monomer B to the monomer C is 1: (6-9): (0.15-0.24); the weight-average molecular weight of the copolymer is 20000 to 50000; the monomer A is an EO/PO random polyether macromonomer containing C = C double bonds; the monomer B is a methacrylic acid amidated macromonomer and/or an acrylic acid amidated macromonomer; the monomer C is methacrylic acid polyglycerol ester and/or acrylic acid polyglycerol ester; the shrinkage reducing agent has excellent shrinkage reducing and dispersing performance in a special plateau climate environment, and does not have side effects such as air entraining and delayed coagulation.
本发明是提供一种适用于高原气候环境的混凝土减缩剂，其是由单体A、单体B和单体C通过自由基共聚反应而制得的；且单体A：单体B：单体C的摩尔比为1：6‑9:0.15‑0.24；其重均分子量为20000‑50000；单体A为含碳C=C双键的EO/PO无规聚醚大单体；单体B为甲基丙烯酸酰胺化大单体和/或丙烯酸酰胺化大单体；单体C为甲基丙烯酸聚甘油酯和/或丙烯酸聚甘油酯；该减缩剂在高原特殊气候环境下具有优异的减缩与分散性能，且无引气、缓凝等副作用。
Concrete shrinkage reducing agent suitable for plateau climate environment
The invention provides a concrete shrinkage reducing agent suitable for a plateau climatic environment. The concrete shrinkage reducing agent is prepared from a monomer A, a monomer B and a monomer C through a free radical copolymerization reaction, the molar ratio of the monomer A to the monomer B to the monomer C is 1: (6-9): (0.15-0.24); the weight-average molecular weight of the copolymer is 20000 to 50000; the monomer A is an EO/PO random polyether macromonomer containing C = C double bonds; the monomer B is a methacrylic acid amidated macromonomer and/or an acrylic acid amidated macromonomer; the monomer C is methacrylic acid polyglycerol ester and/or acrylic acid polyglycerol ester; the shrinkage reducing agent has excellent shrinkage reducing and dispersing performance in a special plateau climate environment, and does not have side effects such as air entraining and delayed coagulation.
本发明是提供一种适用于高原气候环境的混凝土减缩剂，其是由单体A、单体B和单体C通过自由基共聚反应而制得的；且单体A：单体B：单体C的摩尔比为1：6‑9:0.15‑0.24；其重均分子量为20000‑50000；单体A为含碳C=C双键的EO/PO无规聚醚大单体；单体B为甲基丙烯酸酰胺化大单体和/或丙烯酸酰胺化大单体；单体C为甲基丙烯酸聚甘油酯和/或丙烯酸聚甘油酯；该减缩剂在高原特殊气候环境下具有优异的减缩与分散性能，且无引气、缓凝等副作用。
Concrete shrinkage reducing agent suitable for plateau climate environment
一种适用于高原气候环境的混凝土减缩剂
GAO NANXIAO (author) / QIAO MIN (author) / SHAN GUANGCHENG (author) / SHEN FEI (author) / CHEN JIAN (author) / MAO YUAN (author) / WANG WEI (author) / ZHAO SHUANG (author) / ZENG LUPING (author) / WU QINGYONG (author)
2024-06-11
Patent
Electronic Resource
Chinese
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