Evaluation of corrosion effect in reinforced concrete by chloride exposure

G. Loreto, M. Di Benedetti, R. Iovino, A. Nanni, M. A. Gonzalez

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

5 Scopus citations

Abstract

Durability is generally described as the ability of a material to maintain its physical and mechanical properties over time. In reinforced concrete (RC) structures, concrete is the ideal material to protect the steel reinforcement given its high alkalinity. In environments subjected to highly aggressive conditions, mostly due to the presence of chlorides, concrete may lose its protective characteristics and allow for accelerated ageing. Concrete degradation and steel reinforcement corrosion are phenomena closely connected. The aim of this research work is the characterization of the relationship between steel reinforcement corrosion and concrete degradation under accelerated ageing in a 3% sodium chloride solution. The method of linear polarization is used for identification of the corrosion rate of the steel bar. Additionally, the values of concrete residual strength are obtained, and correlated to both the corrosion rate and width of concrete cracks. Finally, the prediction of the concrete cover useful life is estimated.

Original languageEnglish (US)
Title of host publicationNondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011
DOIs
StatePublished - May 24 2011
EventNondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011 - San Diego, CA, United States
Duration: Mar 7 2011Mar 10 2011

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7983
ISSN (Print)0277-786X

Other

OtherNondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011
CountryUnited States
CitySan Diego, CA
Period3/7/113/10/11

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Keywords

  • accelerated testing
  • concrete
  • corrosion
  • service life
  • steel reinforcing bar

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., Iovino, R., Nanni, A., & Gonzalez, M. A. (2011). Evaluation of corrosion effect in reinforced concrete by chloride exposure. In Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011 [79830A] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7983). https://doi.org/10.1117/12.880156