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Prediction Model of Chloride Penetration in Concrete Bridge Deck Considering Environmental Effects  

Kim, Eui-Sung (Civil Development Team, Hyundai Development Company)
Publication Information
Journal of the Korean Society of Safety / v.23, no.4, 2008 , pp. 59-66 More about this Journal
Abstract
Recently, the deterioration of reinforced concrete structures, primarily due to corrosion of steel reinforcement, has become a major concern. Chloride-induced deterioration is the most important deterioration phenomenon in reinforced concrete structures in harsh environments. For the realistic prediction of chloride penetration into concrete, a mathematical model was developed in which the effects of diffusion, chloride binding and convection due to water movement can be taken into account. The aim of this research was to reach a better understanding on the physical mechanisms underlying the deterioration process of reinforced concrete associated with chloride-induced corrosion and to propose a reliable method for estimating these effects. Chloride concentrations coming from de-icing salts are significantly influenced by the exposure conditions such as salt usage, ambient temperature and repeated wet-dry cycles.
Keywords
chloride penetration; bridge deck; deterioration; corrosion; moisture diffusion; convection;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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