高性能水泥-煤矸石体系水化反应程度的测定  

Measurement of degree of hydraulicity in high performance cement-coal gangue system

作　　者：姚玉梅[1] 施惠生[1] 施韬[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9期1-4,共4页Cement

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

摘　　要：采用化学结合水的方法测定了高性能水泥-煤矸石体系硬化浆体的水化程度,用盐酸选择性溶解的办法测定了体系中煤矸石的反应程度,同时用差示扫描量热法测定了煤矸石的活性反应对体系中Ca(OH)2含量的影响。试验结果表明,水泥水化程度和煤矸石的活性反应程度在水化早期增长较快,水化后期增长速率减缓。The degree of hydraulicity of hardened cement pastes added with assistant cementitious materials such as coal gangue were obtained by determining the chemical combined water content. The degree of reactivity of coal gangue was determined by using hydrochloric acid selective dissolution. Differential Scanning Calorimetry （DSC） was used to determine the influence with the change of the content of Ca（OH）2. The results showed that the degree of hydraulicity of cement pastes and the degree of reactivity of coal gangue increase comparatively at early hydration ages and retard at later ages.

关 键 词：高性能水泥 煤矸石 水化程度 化学结合水 盐酸选择性溶解 

分 类 号：TQ172.44[化学工程—水泥工业]