Abstract
This paper presents a finite element based probabilistic corrosion initiation model using Simulation Based Reliability Assessment (SBRA). The model is focused on the effect of diffusions and ingress of chloride ions in bridge decks with excessive cracks to investigate the performance of different corrosion resistant steel reinforcements. The objective of this research is based on the formulation of probabilistic corrosion initiation model with the inclusion of distribution of High Performance Concrete (HPC) diffusion coefficients computed from fundamental electrochemistry and the variation of surface chloride concentration from the field data of Virginia bridge decks as well as other random variable parameters. This study shows the variability and sensitivity on estimation of the time to onset of corrosion using Monte Carlo technique. In addition, the estimation of corrosion free service life for the preliminary design of concrete structures in harsh chloride environments will be indicated.
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Ghosh, P., Konečný, P., Tikalsky, P.J. (2011). SBRA Model for Corrosion Initiation of Concrete Structures. In: Andrade, C., Mancini, G. (eds) Modelling of Corroding Concrete Structures. RILEM Bookseries, vol 5. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-0677-4_5
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DOI: https://doi.org/10.1007/978-94-007-0677-4_5
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