作者：Christopher Parr;Genine Assis;Herve Fryda;

作者单位：

刊名：原料專門委員会報告集

ISSN：

出版年：2010-01-05

卷：

期：70

起页：82

止页：91

分类号：TQ175

语种：英文

关键词：

内容简介

Formulations for deflocculated or self-flow castables rely on the use of fine, reactive matrix fillers to optimise the packing density in the cast mass. At the same time, it is possible to reduce the calcium aluminate cement (CAC) content due to the higher inter-granular contact of the system. When ultra fine fillers are dispersed in water, a surface charge appears due to the -OH groups formation and proton exchange. In order to decrease the surface energy, fine particles tend to agglomerate in water and this creates flocculation. It is thus necessary to add dispersing/fluidifying additives to disperse the system.