Evaluation of concrete structures in marine environment - Geiger key bridge

G. Loreto, M. Di Benedetti, Antonio Nanni

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Reinforced concrete marine structures are highly vulnerable to corrosion due to chloride ion attack; the severity of the attack being dependent on, among other factors, the prevailing climatic condition. The aggressiveness of the warm marine environment of Florida has led to the premature deterioration of numerous bridges and building along the coastline. This paper describes a methodology for structural assessment of concrete bridges while incorporating analysis uncertainty. The procedure includes the use of visual, electrochemical and non-destructive methods in order to define the cause and the level of concrete deterioration. A probabilistic mechanistic model is used to generate the distribution of the time to corrosion initiation based on statistical models of the governing parameters obtained from field data. The proposed methodology is applied to predict the time to corrosion initiation and predict the residual service life of the reinforcing steel in the concrete girders of the Geiger Bridge in Key West, FL.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume8347
DOIs
StatePublished - May 15 2012
EventNondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2012 - San Diego, CA, United States
Duration: Mar 12 2012Mar 15 2012

Other

OtherNondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2012
CountryUnited States
CitySan Diego, CA
Period3/12/123/15/12

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Keywords

  • Bridge
  • Concrete
  • Corrosion
  • Non-destructive evaluation
  • Service life
  • Steel reinforcement

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Loreto, G., Di Benedetti, M., & Nanni, A. (2012). Evaluation of concrete structures in marine environment - Geiger key bridge. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 8347). [83472C] https://doi.org/10.1117/12.914862