摘要
聚羧酸系超塑化剂(PC)与水泥颗粒间的相互作用是开发新型PC的理论前提,而水泥组成的复杂性使PC与水泥单矿间的作用研究成为热点。本文综述了PC在单矿上的吸附特性及其吸附对单矿zeta电位与水化的影响。PC在单矿上存在不均匀吸附;在铝酸三钙上的插层作用与其分子结构具有内在联系;单矿的zeta电位值与溶液组成息息相关;最后介绍了PC对单矿水化行为及水化产物影响。
Interactions between polycarboxylate-based superplasticizer and cement particles are the basic theory for the development of novel designed PC.The impact of PC onto cement component minerals has attracted much attention due to the complex composition of cement.Adsorption characteristic of PC and its effect on the zeta potential and hydration behavior has been well reviewed in this paper.It is established that not a uniform adsorption onto minerals exists.In addition,instinct link between PC architecture and its intercalation into C3A is also presented.It is confirmed that zeta potentials strongly depend on the chemical composition of the solvent.The influence of PC on the hydration behavior and hydration products of cement mineral phase is finally summarized.
出处
《硅酸盐通报》
CAS
CSCD
北大核心
2012年第6期1503-1507,共5页
Bulletin of the Chinese Ceramic Society
基金
国家重点基础研究计划(973)项目(2009CB623205)
关键词
聚羧酸系超塑化剂
吸附
ZETA电位
水化
polycarboxylate-based superplasticizer
adsorption
zeta potential
hydration
