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Visual parameters of chloride-induced corrosion of reinforced concrete structures

Sébastien Charles 1 Valérie L'Hostis 1 Stéphane Poyet 1 
1 LECBA - Laboratoire d'Etude du Comportement des Bétons et des Argiles
SECR - Service d'Etudes du Comportement des Radionucléides : DEN/DPC
Abstract : Corrosion is the major cause of reinforced concrete structures degradation: the pressure generated by oxides formation together with section loss can eventually lead to cracking and the fall in the structure bearing capacity and then jeopardize its service life. The first method for the corrosion state characterisation of concrete structures is to check periodically for visual signs of corrosion on the concrete facing (rust stains and cracks). The goal of this study is to assess the ability of visual inspection to detect and quantify reinforcement corrosion in concrete structures. The data acquired in the framework of the “Poutres de la Rance” benchmark were re-analysed to link the visual signs of corrosion to its real internal consequences (section loss, corroded length… etc.). The results show that, in our case (marine environment), visual inspection does not yield efficient assessment of the real corrosion state and that other non-destructive techniques must be used in order to gain confidence in the diagnosis.
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Submitted on : Wednesday, July 21, 2021 - 10:10:18 AM
Last modification on : Monday, December 13, 2021 - 9:14:48 AM
Long-term archiving on: : Friday, October 22, 2021 - 6:22:00 PM


EJECE 15(1) 9-24.pdf
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  • HAL Id : cea-03293535, version 1



Sébastien Charles, Valérie L'Hostis, Stéphane Poyet. Visual parameters of chloride-induced corrosion of reinforced concrete structures. European Journal of Environmental and Civil Engineering, Taylor & Francis, 2011, 15 (1), pp.9-24. ⟨cea-03293535⟩



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