氨基磺酸系高效减水剂AH的应用性能研究

Study on application properties of aminosulfonic-based superplasticizer

氨基磺酸系高效减水剂(简称AH)与目前广泛使用的萘系高效减水剂(FDN)相比,具有更加优异的性能。表现为:在掺量很少的情况下,水泥净浆就具有较高的流动度,当掺量相同时,其对水泥净浆流动度远超FDN。此外,它还具有明显抑制水泥净浆流动度经时损失的性能,是一种缓凝型的高效减水剂,与水泥的相容性好,对混凝土也能表现出显著的减水增强性,是一种性能较佳的优良高效减水剂。

Compared with the widely-used naphthalene superplasticizer（short form as FDN）,aminosulfonic-based superplasticizer（short form as AH）has even more outstanding properties.The study on the properties of AH shows that the cement paste has the high fluidity in the admixture of few AH.When it is with the same amount as FDN,it has the higher fluidity of cement paste than FDN.In addition,it also has an obviously inhibition property to protect the lost by long time cement paste fluidity.It is a retarding superplasticizer,with good compatibility to cement,and it also demonstrates a significant water reduction and compressive strength increasing to cement.So,it is a highly effective superplasiticizer.