Nondestructive Method for Estimation of Chloride Profiles: Correlation between Electrical Resistivity and Holliday-Empirical Equation
This article has been corrected.
VIEW CORRECTIONPublication: Journal of Construction Engineering and Management
Volume 146, Issue 10
Abstract
Concrete electrical resistivity has been performed as a durability parameter because this is a nondestructive, simple, fast, and reliable technique for evaluation of reinforced concrete field structures. The results obtained have been used mainly to verify the probable reinforcement corrosion risk. However, other applications for electrical resistivity are possible, such as service life estimation of concrete structures in a marine environment. This paper presents the applicability of concrete electrical resistivity as a parameter for the determination of modified Holliday equation variables for chloride profile modeling of field reinforced concrete structures present in a marine environment. For this, chloride profiles of reinforced concrete structures present for more than in different marine aggressive zones were analyzed. The results showed that all the modified Holliday equation variables can be estimated by electrical resistivity values presenting moderate to very high statistical correlations. The chloride concentration peak was observed near the concrete surface for concretes that presented lower electrical resistivity. Concretes that presented low electrical resistivity showed high chloride concentrations in the profiles, including concentrations up to 1.6% by concrete mass at the peak.
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Data Availability Statement
Data generated by the authors or analyzed during the study are available at http://www.bdita.bibl.ita.br/tesesdigitais/lista_resumo.php?num_tese=73486. Information about the Journal’s data-sharing policy can be found here: http://ascelibrary.org/doi/10.1061/(ASCE)CO.1943-7862.0001263.
Acknowledgments
The authors would like to thank the Fernando Lee Foundation for its support, as well as the Araucaria Foundation, National Council for Scientific and Technological Development (CNPQ), and Coordination for the Improvement of Higher Education Personnel (CAPES).
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Published In
Journal of Construction Engineering and Management
Volume 146 • Issue 10 • October 2020
Copyright
© 2020 American Society of Civil Engineers.
History
Received: Feb 8, 2020
Accepted: May 12, 2020
Published online: Jul 21, 2020
Published in print: Oct 1, 2020
Discussion open until: Dec 21, 2020
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