磨细高钛高炉渣水化特性研究

STUDY ON HYDRATION CHARACTERISTICS OF GROUNDED HIGH TITANIUM SLAG

采用X射线衍射、SEM、EMPA、DTA等手段,用对比分析的方法,研究了攀钢磨细高钛高炉渣矿物组成、水化活性、水化产物以及水化过程特征。研究结果表明,攀钢磨细高钛高炉渣水化活性指数仅为77.4%,而普通高炉渣为108%。从水化产物的类型看,高钛高炉渣、普通矿渣、纯水泥三种物质具有相同的水化产物,高钛高炉渣的水化产物数量结晶度明显低于普通高炉渣,从微观结构上说明了攀钢高炉渣水化活性低的原因。

The characteristics of grounded high titanium slag during the hydration process were discussed comparing with grounded low titanium one. The mineral composition, hydability and hydrating characteristics of grounded high titanium slag, and the hydration product were analyzed by means of X-ray diffraction analysis, SEM, EMPA, DTA separately. The results demonstrate that the hydaulic activation index of high titanium BF slag is 77.4% while that of slag with low titanium is 108%. The high titanium slag has the same hydration product as the low titanium slag and the portland cement. However, the amount and the crystallinity of hydration product in the high titanium BF slag are obviously lower than that in the low titanium slag. This means the high titanium slag has low hydaulic activation index.