荷载作用下混凝土中氯离子传输研究  

Study on chloride transport in concrete under load

作　　者：徐翔宇 XU Xiangyu(Department of Civil Engineering,Wuchang Shouyi University,Wuhan 430064,China)

机构地区：[1]武昌首义学院土木工程系,湖北武汉430064

出　　处：《混凝土》2021年第2期47-49,67,共4页Concrete

基　　金：2018年度湖北省教育厅科研计划项目“基于RFID技术的BIM装配式构件配送研究”(B2018353)。

摘　　要：依据Fick第二定律,对混凝土中氯离子含量分布情况进行曲线拟合,然后用误差函数进行计算,得出不同深度情况下,混凝土中氯离子含量变化情况,最终得到氯离子的扩散系数,进而得出氯离子在混凝土中的传输特点以及氯离子的扩散系数和混凝土原材料之间的关系。结果表明,在海洋环境中,荷载对混凝土的氯离子传输性的影响很大。According to Fick′s second law,the distribution of chloride ion content in concrete is fitted with a curve,and then the error function is used to calculate the change of chloride ion content in concrete at different depths.Finally,the diffusion coefficient of chloride ion is obtained,and then the transmission characteristics of chloride ion in concrete and the relationship between the diffusion coefficient of chloride ion and concrete raw materials are obtained department.The results show that in the marine environment,the load has a great influence on the chloride transport of concrete.

关 键 词：冲击荷载 混凝土 氯离子传输 

分 类 号：TU528.01[建筑科学—建筑技术科学]