EFFECT OF PRE-WETTED SHALE CERAMISITE ON INTERNAL RELATIVE HUMIDITY AND AUTOGENOUS SHRINKAGE OF SULPHOALUMINATE CEMENT CONCRETE
The effect of dosage and particle size of pre-wetted shale ceramisite on internalrelative humidity (IRH),autogenous shrinkage (AS) and strength of sulphoaluminate cementconcrete (SCC) was studied in this paper. The result indicates that the IRH decreases rapidlywithin 7d age and the early autogenous shrinkage grows fast. Whats more,pre-wetted shaleceramisite plays a key role in regulating IRH,which can effectively decrease AS. Therelationship among the amount of water imported by pre-wetted shale ceramisite,IRH and ASare established,which provides a new method for controlling IRH and reducing AS of SCC.
Sulphoaluminate cement concrete autogenous shrinkage internal relative humidity pre-wetted shale ceramisite
Ding Qingjun Peng Yanzhou Hu Shuguang
School of Material Science and Engineering,Wuhan University of Technology,PR China
国际会议
The International Conference on Durability of Concrete Structures(2008年混凝土结构耐久性国际学术会议)
杭州
英文
522-528
2008-11-01（万方平台首次上网日期，不代表论文的发表时间）