长江科学院院报2017，Vol.34Issue(5)：131-134,140,5.DOI:10.11988/ckyyb.20151087
盐渍土氯离子在混凝土中运移的耦合模型研究
Coupling Model of Chloride Ion Migration fromSaline Soil to Concrete
摘要
Abstract
The mechanism of chloride ion migrating from saline soil to concrete is simulated by Comsol Multiphysics.Based on Fick's second law,the impact of electric field,binding and capillarity are analyzed.Binding impedes the chloride ion transport;whereas electric field and capillarity promotes the transport.With the increase of invasion depth,the function of binding decreases and electric field of initial stage first increases and then decreases.The effect of binding and electric field both decrease gradually over time.Capillary action is only obvious in the initial 1.5 hours of the invasion.The coupling model in consideration of diffusion,electric field transport,and binding action was established.The model was verified by experimental data.关键词
混凝土/ComsolMultiphysics/氯离子/电场迁移/结合作用/毛细作用Key words
concrete/Comsol Multiphysics/chloride ion/electric migration/binding/capillary action分类
建筑与水利引用本文复制引用
高子瑞,李淑娥,陈志明,徐永福..盐渍土氯离子在混凝土中运移的耦合模型研究[J].长江科学院院报,2017,34(5):131-134,140,5.基金项目
江苏省交通科研项目(2015T18) （2015T18）
