Chloride induced corrosion of reinforcing steel evaluated by concrete resistivity measurements

Morris, Walter
Vico, A
Vazquez, Marcela Vivian

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Publication date

October 2004

DOI

10.1016/j.electacta.2004.05.001

Publisher

Elsevier BV

ISSN

0013-4686

Journal

Electrochimica Acta

Citation count (estimate)

Abstract

The chloride threshold (ClTH) concentration for rebar corrosion initiation has received extensive attention over the last years. The chloride threshold concentration depends on several factors involving concrete composition and quality, exposure conditions and rebar surface characteristics. As a consequence, many researchers have proposed ClTH ranges that take into account the relative influence of each of these many factors. On the other hand, the electrical resistivity of concrete has proven to be an effective parameter that can be used to estimate the risk of reinforcing steel corrosion, particularly when corrosion is induced by chloride attack. The present study is based on a correlation of electrochemical parameters such as corrosion p...