聚羧酸系泵送剂被称为第三代减水剂,它有着较萘系泵送剂明显的优点.但由于目前混凝土搅拌站对其认识的局限性,聚羧酸只在部分高强度等级预制构件生产中有所应用,而没能在搅拌站中得到普及.针对其优异的性能,着重谈论聚羧酸减水剂复配防冻泵送剂的实验以及在冬季混凝土施工中的应用. Polycarboxylate pumping agent is called the third generation of superplasticizer, which has more obvious advantages than naphthalene pumping agent.But due to the limitations of the current understanding of concrete mixing plant, polycarboxylic acid only in part of the high strength Grade prefabricated components has been applied in production, but not in the mixing station has been popularized.For its excellent performance, focusing on the polycarboxylate superplasticizer antifreeze pumped experiments and in winter concrete construction application.