Numerical Model for Chloride Penetration into Saturated Concrete
Publication: Journal of Materials in Civil Engineering
Volume 23, Issue 3
Abstract
Chloride-induced corrosion is the most important durability issue in a reinforced-concrete structure. In this paper, the multispecies model was used to describe the chloride transport in saturated concrete. The model was solved by using the finite-difference method by inputting parameters such as porosity, density, chemical composition of pore solution, diffusion coefficient, and chloride-binding isotherm. A depth-dependent diffusion coefficient, instead of a fixed diffusion coefficient, was used in this model. The chloride-binding isotherm was directly obtained from the diffusion test. Finally, the numerical simulation results were validated with experimental results. It was found that the numerical simulation results were in good agreement with the experimental results.
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Information
Published In
Journal of Materials in Civil Engineering
Volume 23 • Issue 3 • March 2011
Pages: 305 - 311
Copyright
© 2011 American Society of Civil Engineers.
History
Received: Jul 15, 2009
Accepted: Aug 18, 2010
Published online: Sep 17, 2010
Published in print: Mar 1, 2011
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