Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-adaptability concrete super plasticizer as well as preparation method and application thereof
The invention discloses a high-adaptability concrete super plasticizer as well as a preparation method and application thereof. The concrete super plasticizer is formed by co-polymerizing an unsaturated polyether macromonomer d and three polymerizable small monomers, namely a carboxylic acid monomer a, a phosphorus-containing monomer b and a nitrogen-containing monomer c, in an aqueous solution, wherein the molar ratio of the carboxylic acid monomer a to the phosphorus-containing monomer b to the nitrogen-containing monomer c to the unsaturated polyether macromonomer d is (2-10): (0.5-2): (0.5-2): 1; and the weight-average molecular weight of the concrete super plasticizer is 15000 to 70000 Da. The superplasticizer prepared by the invention has good water reducing capacity, excellent clay resistance and good adaptability to cement, and can meet the requirements of various types of cement or the performance of concrete with high clay content.
本发明公开了一种高适应性混凝土超塑化剂、其制备方法及应用。本发明所述混凝土超塑化剂是由不饱和聚醚大单体d与羧酸单体a、含磷单体b、含氮单体c三种可聚合小单体在水溶液中共聚而成，所述羧酸单体a：含磷单体b：含氮单体c：不饱和聚醚大单体d的摩尔比为2~10：0.5~2：0.5~2：1；所述混凝土超塑化剂的重均分子量为15000‑70000Da。本发明制得的超塑化剂具有良好的减水能力，优异的抗粘土性能，与水泥的适应性良好，能够满足多种水泥或者高粘土含量下混凝土性能的需求。
High-adaptability concrete super plasticizer as well as preparation method and application thereof
The invention discloses a high-adaptability concrete super plasticizer as well as a preparation method and application thereof. The concrete super plasticizer is formed by co-polymerizing an unsaturated polyether macromonomer d and three polymerizable small monomers, namely a carboxylic acid monomer a, a phosphorus-containing monomer b and a nitrogen-containing monomer c, in an aqueous solution, wherein the molar ratio of the carboxylic acid monomer a to the phosphorus-containing monomer b to the nitrogen-containing monomer c to the unsaturated polyether macromonomer d is (2-10): (0.5-2): (0.5-2): 1; and the weight-average molecular weight of the concrete super plasticizer is 15000 to 70000 Da. The superplasticizer prepared by the invention has good water reducing capacity, excellent clay resistance and good adaptability to cement, and can meet the requirements of various types of cement or the performance of concrete with high clay content.
本发明公开了一种高适应性混凝土超塑化剂、其制备方法及应用。本发明所述混凝土超塑化剂是由不饱和聚醚大单体d与羧酸单体a、含磷单体b、含氮单体c三种可聚合小单体在水溶液中共聚而成，所述羧酸单体a：含磷单体b：含氮单体c：不饱和聚醚大单体d的摩尔比为2~10：0.5~2：0.5~2：1；所述混凝土超塑化剂的重均分子量为15000‑70000Da。本发明制得的超塑化剂具有良好的减水能力，优异的抗粘土性能，与水泥的适应性良好，能够满足多种水泥或者高粘土含量下混凝土性能的需求。
High-adaptability concrete super plasticizer as well as preparation method and application thereof
一种高适应性混凝土超塑化剂、其制备方法及应用
LIU JINZHI (Autor:in) / RAN QIANPING (Autor:in) / LIU JIAPING (Autor:in) / HUANG ZHEN (Autor:in) / LI SHENTONG (Autor:in) / WANG XIUMEI (Autor:in) / WANG TAO (Autor:in) / ZHANG JIANGANG (Autor:in)
16.07.2021
Patent
Elektronische Ressource
Chinesisch
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