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Study on test method and influence factors of cement degradation

BEGUEDOU Essossinam,LIN Zong-shou School of Material Science and Engineering,Wuhan University of Technology,Wuhan 430070,Hubei,China  
A complete method used to test cement degradation was presented,while the degradation properties of different varieties of cement were compared.Also the effect of curing systems,water-cement ratio and binder-aggregate ratio on cement degradation were studied.The results showed that the higher the first day strength of the cement,the lower the degradation.To reduce the amount of cement degradation,concrete should not be cured in high temperature and low humid circumstance,and bleeding phenomena should be avoided,and do the best to control an accurate water-cement ratio and binder-aggregate ratio.
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