脱硫石膏-粉煤灰-水泥胶凝体系强度及耐久性能研究  

Study on Strength and Durability of Desulphurization Gypsum-Fly Ash-Cement Cementitious System

作　　者：伍勇华[1] 姚源[1] 南峰[1] 王宇卫[1] 金瑞灵[1] 

机构地区：[1]西安建筑科技大学材料与矿资学院,西安710055

出　　处：《硅酸盐通报》2014年第2期315-320,共6页Bulletin of the Chinese Ceramic Society

摘　　要：本文介绍了脱硫石膏-粉煤灰-水泥胶凝体系的强度、耐水性、干缩性能及抗碳化性能;通过XRD和SEM分析了此胶凝体系的水化产物和微观形貌。结果表明:脱硫石膏-粉煤灰-水泥胶凝体系有较高的强度和较好的耐水性。该胶凝体系有较好的"收缩补偿"效应,干燥收缩较小。由于碱含量较少,该胶凝体系碳化速度较快。The strength, water resistance, drying shrinkage and carbonation resistance of Oesmpnunzauon gypsum-fly ash-cement cementitious system was studied in this paper. Hydration products and microstructures of the system were analyzed by XRD and SEM. The results showed that this system had high strength and excellent water resistance. Because of low drying shrinkage and alkali content, this cementitious system had good ＂ shrinkage compensation＂ effect and fast carbonation pace, respectively.

关 键 词：脱硫石膏 粉煤灰 强度 耐水性 耐久性 

分 类 号：TQ172[化学工程—水泥工业]