聚羧酸系减水剂用于水下不分散混凝土的研究  

Study on application of polycarboxylate superplasticizer in anti-washout concrete

作　　者：陈国新[1] 杜志芹[1] 杨日[1] 徐唯唯[1] 沈燕平[1] 祝烨然[1] 

机构地区：[1]南京水利科学研究院瑞迪高新技术公司,江苏南京210024

出　　处：《混凝土》2012年第2期117-118,123,共3页Concrete

摘　　要：聚羧酸系减水剂作为新一代高性能减水剂,用其配制水下不分散混凝土,可以充分发挥其低掺量、高减水率、良好的流动度保持性、良好的增强效果等优点。试验对比了掺聚羧酸系高性能减水剂(GX)、萘系高效减水剂(FDN)和氨基磺酸系高效减水剂(AS)水下不分散混凝土的流动度、流动度保持性、用水量和抗压强度,结果表明掺加GX的水下不分散混凝土其各项性能更优。As a new type high performance water reducer, the polycarboxylate superplasticizer has many advantages such as low dosage, high water reducing rate,good fluidity retention and good strength increasing capacity.The fluidity,fluidity retention,water consumption and compression strength of anti-washout concrete added with polycarboxylate superplastieizer （GX）,naphthalene sulfate based superplasticizer （FDN） or aminosulfonic acid-based superplasticizer （AS） are tested and compared.The results indicate that the anti-washout concrete added with GX has the best performances.

关 键 词：聚羧酸系减水剂 水下不分散 混凝土 流动度 强度 

分 类 号：TU528.042.2[建筑科学—建筑技术科学]