PROPERTY CHARACTERIZATION OF SELF COMPACT CONCRETE AT EARLY AGE
The process of hydration and solidification of self compact concrete(SCC)has a significant influence on the long term strength and durability of SCC.There is little information regarding the early hydration for SCC.The electrical property characterization of SCC provides a direct and practical method for monitoring and investigating the hydration process of young SCC.In conventional method of electrical resistivity measurement for cement-based materials,there is a problem in contact between specimen and electrodes.This study adopts electrodeless measurement technique to investigate the electrical resistivity of SCC at early stage.The method eliminates the contact problem and polarization effect.The results obtained by this method have much better accuracy.The test results provided the electric parameters for SCC with different chemical admixture incorporations.The variations and characteristics of the measured electrical parameters were used to characterize the physical and chemical properties of young SCC.These parameters were used to study and analyse the hardening process of young SCC.
Zongjin Li Lianzhen Xiao
Department of Civil Engineering,the Hong Kong University of Science & echnology Department of Civil Engineering,the Hong Kong University of Science & Technology
国际会议
长沙
英文
363-374
2005-05-26（万方平台首次上网日期，不代表论文的发表时间）