Probabilistic Approach for Durability Design of Concrete Structures in Marine Environments
Publication: Journal of Materials in Civil Engineering
Volume 27, Issue 2
Abstract
Corrosion of steel reinforcement due to chloride penetration is a major deterioration mechanism of reinforced concrete (RC) structures exposed to marine environments. In the present paper, a probabilistic model is presented to predict the chloride penetration profile in concrete and the risk of steel corrosion considering the time dependence of both the diffusion coefficient and the surface chloride concentration of concrete. Abundant field data from two projects in China and Japan are respectively collected. The consistency between these field data and the model prediction verified the reliability of this probabilistic model, based on which further parametric analyses were carried out to investigate the effects of different design variables on the probability of steel corrosion.
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Acknowledgments
This research was financially supported by the National Natural Science Foundation of China (No. 51108413), the Research Grants Council of the Hong Kong SAR (Project No. PolyU 516509), the Fundamental Research Funds for the Central Universities (No. 2012QNA4016), and the Western Construction Project of Ministry of Transportation (No. 20113288061110).
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Published In
Journal of Materials in Civil Engineering
Volume 27 • Issue 2 • February 2015
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Jul 23, 2013
Accepted: Jan 6, 2014
Published online: Jan 8, 2014
Discussion open until: Dec 8, 2014
Published in print: Feb 1, 2015
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