Relationship between conductivity of concrete and corrosion of reinforcing bars

Feliú Jr., S.; González, J. A.; Feliú, Sebastián; Andrade Perdrix, Carmen; Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]

Relationship between conductivity of concrete and corrosion of reinforcing bars

1989

Feliú Jr., S. | González, J. A. | Feliú, Sebastián | Andrade Perdrix, Carmen | Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]

An attempt is made to explain the role played by the conductivity of concrete in the corrosion of reinforcing bars. Tests carried out on bimetallic couples embedded in concrete support the hypothesis of direct proportionality between concrete conductivity and corrosion rate. Several factors rule out the hypothesis of ohmic control. On the contrary, it is suggested that the process of corrosion is governed by the fraction of the metallic surface wetted by the interstitial liquid present in the concrete.

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