氨基磺酸系复合减水剂在水泥颗粒表面的吸附特性及减水剂-水泥-水体系的动电性质试验研究  

Experimental Study of Adsorption of Compounded Water Reducers of Aminosulfonic Series to Cement Particle Surface and Dynamic Electricity Behavior of Water Reducer-Cement-Water System

作　　者：程玉光 杨长辉[2] 陈科[2] 叶健雄[2] 

机构地区：[1]广东天信电力工程检测有限公司,广州510600 [2]重庆大学材料学院建材系,重庆400045

出　　处：《化学建材》2008年第6期35-38,共4页Chemical Materials for Construction

摘　　要：氨基磺酸系减水剂减水率高、坍落度损失小,但混凝土保水性差,故在实际应用中多与萘系FDN等高效减水剂复合使用以获得良好的使用效果。本文主要研究了氨基磺酸系复合减水剂在水泥颗粒表面的吸附特性及外加剂-水泥-水体系的ξ-电位性能,并对其协同作用机理进行了分析。Water reducers of aminosulfonic series displayed high water reduction and low slump loss, yet a poor water retention for concrete, therefore in practical application they were more often than not compounded with high range water reducers such as FON for better effects. In this paper, adsorption of compounded water reducers of aminosulfonic series to cement particle surface and ξ-potential behavior of additive-cement-water system were studied in the main and their cooperated mechanism was also analysed.

关 键 词：ASPF FDN 复合 吸附 ξ-电位 

分 类 号：TU528.042[建筑科学—建筑技术科学]