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SBRA Model for Corrosion Initiation of Concrete Structures

  • Pratanu Ghosh
  • Petr Konečný
  • Paul J. Tikalsky
Conference paper
Part of the RILEM Bookseries book series (RILEM, volume 5)

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.

Keywords

Ordinary Portland Cement Bridge Deck High Performance Concrete Epoxy Coating Corrosion Initiation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© RILEM 2011

Authors and Affiliations

  • Pratanu Ghosh
    • 1
  • Petr Konečný
    • 2
  • Paul J. Tikalsky
    • 1
  1. 1.Department of Civil and Environmental EngineeringUniversity of UtahSalt Lake CityUSA
  2. 2.Faculty of Civil EngineeringVŠB - Technical University of OstravaOstravaCzech Republic

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