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Article | REF: COR408 V2

Corrosion of reinforcements in concrete – Examples, repairs, diagnosis and prevention

Authors: Valérie L'HOSTIS, André RAHARINAIVO, Guy TACHÉ

Publication date: June 10, 2017

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1. Corrosion cases and diagnostics

1.1 Carbonation-induced corrosion

The mechanism of carbonation previously described in [COR407] is the action of carbon dioxide from the air on the cement in the concrete. When carbonation reaches the surface of the reinforcement, corrosion can begin.

The precise description of this process is rather complex, as the main factors influencing carbonation are numerous, linked on the one hand to the concrete material (ability to bind CO ...

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