Testing and Evaluation on the Chloride Ion Penetrability of Concrete under Compressive Stress
Chloride ion penetrability of concrete under and after compressive stress was tested in the paper.Four stress level (the ratio of the pressure load and ultimate load) was set:20%,40%,60% and 80%.Chloride ion penetrability of concrete was tested using a rapid test method of electric flux.The results indicated that the electric flux of concrete under compressive stress was influenced by stress level,and the electric flux of concrete was first decreased and then upward with stress level increasing.The electric flux of concrete of different strength grade was sensitivity to compressive stress differently,and the lower the strength grade of concrete,the high sensitivity to compressive stress.The electric flux of concrete after compressive stress was related with crack recovery,and there was a significant effect of only more than 60% stress level on the electric flux of concrete.The evaluation of chloride ion penetrability of concrete structure should take into account the loads.
concrete compressive stress level chloride ion penetrability electric flux
Yuchuan Jiang Da Huo Haiwen Teng Jine XU
College of Architecture and Civil Engineering,Beijing University of Technology,Beijing,100124,P.R.Ch College of Architecture and Civil Engineering,Beijing University of Technology,Beijing,100124,P.R.Ch China Building Material & Certification Group Co.,Ltd.,Beijing,100024,P.R.China
国际会议
景德镇
英文
415-420
2012-10-15（万方平台首次上网日期，不代表论文的发表时间）