OPC-SAC体系混凝土和易性及早期抗压强度研究  

Study on Workability and Early Compression Strength of OPC-SAC Concrete

作　　者：李静[1] 黄建良[1] 杨明灿[1] 王利彬[1] 马俊[1] 

机构地区：[1]华南理工大学土木与交通学院,广东广州510641

出　　处：《施工技术》2017年第6期69-72,85,共5页Construction Technology

基　　金：中央高校基本科研经费项目(10561201558)

摘　　要：为满足预制构件实际生产需要,提高生产效率并节约成本,使用普通硅酸盐水泥(OPC)和低碱硫铝酸盐水泥(SAC)配制了便于施工、满足早强早脱模要求且免蒸养的OPC-SAC体系混凝土。试验结果表明,SAC占水泥总量10%~25%时,该混凝土的施工性能良好,10h抗压强度≥15MPa,28d抗压强度>36MPa。To meet the practical production requirements of precast concrete member, improving production efficiency and saving cost, OPC-SAC concrete was prepared with ordinary portland cement （OPC） and low-alkali sulpho-alnminate cement （SAC）, aiming to be demoulded earlier with easy construction, high early strength and autoclaving-free maintenance properties. The research indicated that when SAC accounted for 10% - 25% of the cement, the concrete had good workability while its 10h- strength was no less than 15MPa and its 28d-strength was greater than 36MPa.

关 键 词：混凝土 OPC-SAC体系 和易性 抗压强度 预制 装配 外墙 

分 类 号：TU528[建筑科学—建筑技术科学]