煤矸石-氢氧化钙体系中煤矸石含量的定量分析研究  

Quantitative study of coal-gangue optimized content in coal-gangue-calcium hydrate system

作　　者：施韬[1] 施惠生[1] 姚玉梅[1] 许碧莞[1] 

机构地区：[1]同济大学先进土木工程材料教育部重点实验室,上海200092

出　　处：《水泥》2006年第6期1-3,共3页Cement

基　　金：国家重点基础研究发展规划(973)项目(2001CB610705-01)

摘　　要：将水泥-煤矸石体系进行简化,以实际参与二次水化反应的主要组分煤矸石和氢氧化钙单独组成一个体系,以此来对煤矸石的特性进行研究。试验通过修正的酸溶法对各个龄期的煤矸石含量进行定量分析。试验结果显示,活化后的煤矸石有一部分会被酸溶解。煤矸石具有辅助性的胶凝作用,但是这种作用有限。煤矸石所参与的反应主要集中在28d以前。The coal-gangue（CG） and CH which were the main components for secondary hydrate reaction, were simplified as one system. Therefore, it was easier than normal way to research this system. A modified acid dissolve method was used to make fix quantitative analysis of the percentage of CG in specimens of each age in the new system. As illustrated from the data, the reactive CG would be dissolved partly in acid solution. More or less, CG may be regarded as limited cementitious materials. Most of actions between CG and CH reacted in the first 28 days.

关 键 词：煤矸石 氢氧化钙 酸溶法 定量分析 活性 

分 类 号：TQ172.44[化学工程—水泥工业]