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

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COR408 V2 Quizzed article

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

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

Review date: June 22, 2026 | Lire en français

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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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