氯盐种类及冻融对混凝土氯离子迁移的影响  

Effect of Salt Types and Freeze-Thaw on Chloride Diffusion in Concrete

作　　者：徐港[1] 卫军[1] 

机构地区：[1]华中科技大学土木与力学学院,湖北武汉430074

出　　处：《建筑材料学报》2006年第6期729-734,共6页Journal of Building Materials

基　　金：国家自然科学基金资助项目(50278039)

摘　　要：通过试验研究了盐溶液类型及冻融循环等外部环境对混凝土中氯离子扩散性能的影响.介绍了混凝土电阻和氯离子扩散系数受盐溶液类型及冻融循环影响的变化情况.并试验结果表明,氯盐种类和冻融循环对混凝土中氯离子的迁移都有影响.The effect of exotic environment such as salt solution type and freeze-thaw cycles on chloride diffusion in concreteies was studied by experiment. The effect of salt solution types and freeze-thaw cycles on glectric resistance of concrete and chloride diffusion coefficient were investigated. The result shows that these external environments have effect on chloride diffusion in concrete. The experimental result is analyzed with mechanism of freeze-thaw and theory of diffusion.

关 键 词：盐溶液 冻融循环 氯离子扩散系数 混凝土电阻 

分 类 号：TU528[建筑科学—建筑技术科学]