Abstract
This paper presents a numerical study on the mechanism of chloride migration in cracked concrete. Unlike most of existing work, this study utilises multi-component ionic transport models to reflect the influence of ionic interactions by coupling the mass conservation and Poisson’s equations. To provide a better understanding of the influences caused by multi-component migration and concrete cracking, two categories of geometry samples are displayed and discussed respectively. Finally, through a comparatively overall numerical exploration, which includes external voltage, ionic interactions, heterogeneous nature, binding effect and multiple cracks arrangement, a series of important transport features, which cannot be revealed previously from existing cracked concrete models, are highlighted.
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