混凝土高效减水剂又称超塑化剂,是一类高分子缩聚物,根据它的化学组成可分为萘磺酸盐甲醛缩聚物、三聚氰胺甲醛缩聚物和改性木质素磺酸盐等三类。它出现在本世纪六十年代。1963年日本花王石碱公司首先研制成了一种以β-萘磺酸盐甲醛缩聚物为主要成分的高效减水剂,其商品名为迈蒂(mighth)。日本用这种 Concrete superplasticizer, also known as superplasticizer, is a kind of macromolecule polycondensate. According to its chemical composition, it can be divided into naphthalenesulfonate formaldehyde polycondensate, melamine formaldehyde polycondensate and modified lignosulfonate. class. It appeared in the 1960s. In 1963, Kaspersky Co., Ltd. of Japan first developed a high-efficiency water-reducing agent containing β-naphthalenesulfonate formaldehyde polycondensate as a main component, and its trade name is called “mighth”. Japan uses this