摘要
采用高温烧结的方法,成功制备了C3A(铝酸三钙)。并深入研究了C3A含量对聚羧酸系超塑化剂-水泥体系分散?流变和吸附行为的影响,解释了分散性能、流变性能与超塑化剂在水泥颗粒表面吸附率的关系,试验结果表明:随着C3A含量的增加,聚羧酸系超塑化剂在水泥颗粒表面的吸附率先增大后减小,聚羧酸系超塑化剂-水泥体系的分散性能先增强后减弱。当水泥中C3A含量为8%时,聚羧酸系超塑化剂在水泥颗粒表面的吸附率最大,分散性能和流变性能最好。
The method of high-temperature-sintering is used to make C_3A.And the effect of C_3A on the dispersity and rheological properties and adsorption of the system of polycarboxylic kinds of superplasticizer-cement is studied.Also,it is explained the relationship between adsorption at cement particles,dispersity and rheological properties.The results show that when the content of C_3A increases,the adsorption ratio of polycarboxylic kinds of superplasticizer on the face of cement increases first,then decreases,and the dispersity is enhanced first then weakened.When the content of C_3A in the cement achieved 8%,the adsorption ratio of polycarboxylic kinds of superplasticizer on the face of cement is the greatest,at the same time the dispersity and rheological properties are the best.
出处
《工业建筑》
CSCD
北大核心
2010年第S1期781-784,共4页
Industrial Construction
基金
江苏省自然科学基金项目(BK2007722)
关键词
聚羧酸
C3A
分散
流变
吸附
polycarboxylate
C_3A
dispersity
rheology
adsorption
