高C_3S水泥系统的力学性能及干缩性能  

Mechanics and drying shrinkage properties of high C_3S cement system

作　　者：蔡安兰[1] 严生[2] 许仲梓[2] 邓敏[2] 

机构地区：[1]盐城工学院材料科学与工程系,江苏盐城224003 [2]南京工业大学材料科学与工程学院,江苏南京210009

出　　处：《水泥》2005年第7期5-7,共3页Cement

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

摘　　要：研究了高C3S水泥系统和普通水泥系统的力学性能及干缩性能。结果表明,高C3S水泥具有较高的强度和较小的干缩,可大量利用粉煤灰(掺量可达40%)。普通水泥只有在很高的比表面积时,3d和28d强度才和高C3S水泥相当,但其干缩比高C3S水泥大得多。从节约能源、利用资源和提高水泥混凝土材料耐久性出发,应大力发展高C3S水泥。The mechanics and drying shrinkage properties of high C3S cement and popular cement systems were studied. The results indicated that high C3S cement had higher strength and less drying shrinkage and can largely utilize fly ash (up to 40% of fly ash may be added). The strength of popular cement at 3d and 28d be equivalent to high C3S cement only when it had high specific surface area, but its drying shrinkages was more than that of high C3S cement at the same curing and drying condition. To save energy, utilize resources and improve durability of cement and concrete materials, it was necessary to develop high C3S cement.

关 键 词：高C3S水泥 强度 干缩 

分 类 号：TQ172.12[化学工程—水泥工业]