Modeling the Synergetic Effect of Various Factors on Chloride Transport in Nonsaturated Concrete

作     者：张小刚 LU Zhaohui 王淑萍 ZHOU Tianhai XING Feng 

作者机构：Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering College of Civil Engineering Shenzhen University Shenzhen 518060 China National Engineering Laboratory for High Speed Railway Construction School of Civil Engineering Central South University Changsha 410075 China College of Materials Science and Engineering Chongqing University Chongqing 400045 China 

出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报（材料科学英文版）)

年 卷 期：2016年第31卷第6期

页      面：1336-1346页

核心收录：

学科分类：08[工学] 081304[工学-建筑技术科学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0813[工学-建筑学] 

基　　金：Funded by the National Natural Science Foundation of China(Nos.51278304,U1134209,U1434204&51422814) the National Basic Research Program(973 Program)of China(No.011-CB013604) the Technology Research and Development Program(Basic Research Project)of Shenzhen(Nos.JCYJ20120613174456685&JCYJ20130329143859418) 

主　　题：RC structures nonsaturated concrete chloride transport synergetic effect analytical convection diffusion model influence factors 

摘      要：Diffusion has been systematically described as the main mechanism of chloride transport in reinforced concrete（RC） structure, especially when the concrete is in a saturated state. However, the single mechanism of diffusion is not able to describe the actual chloride ingress in the nonsaturated concrete. Instead, it is dominated by the interaction of diffusion and convection. With the synergetic effects of various factors taken into account, this study aimed to modify and develop an analytical convection- diffusion coupling model for chloride transport in nonsaturated concrete. The model was verified by simulation of laboratory tests and field measurement. The results of comparison study demonstrate that the analytical model developed in this study is efficient and accurate in predicting the chloride profiles in the nonsaturated concrete.