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Modelling the corrosion-induced cracking of reinforced concrete structures exposed to the atmosphere / V. L'Hostis in Materials and corrosion, Vol. 62 N° 10 (Octobre 2011) 

Public ISBD [article]  in Materials and corrosion > Vol. 62 N° 10 (Octobre 2011) . - pp. 943–947 Titre : Modelling the corrosion-induced cracking of reinforced concrete structures exposed to the atmosphere Type de document : texte imprimé Auteurs : V. L'Hostis, Auteur ; A. Millard, Auteur ; S. Perrin, Auteur Année de publication : 2012 Article en page(s) : pp. 943–947 Note générale : Génie Mécanique Langues : Anglais (eng) Mots-clés : Atmospheric  corrosion  Cementitious  materials  Modelling  Oxygen  reduction Résumé : The prediction of concrete cracking due to corrosion in atmospheric/carbonated conditions is a major issue for the evaluation of the durability of structures and the choice of maintenance policies. Because of the complexity of the phenomenon, a fully predictive approach is still missing. The proposed work can be considered as one step in this direction. It deals with a modelling study achieved at the Commissariat à l'Energie Atomique (CEA) with the CAST3M finite elements software. Model is constituted of three components: (1) concrete hydric behaviour, (2) rebar corrosion and (3) mechanical consequences on concrete (mainly concrete cracking). Actual developments consider analogies between rebar corrosion mechanisms and atmospheric corrosion ones, assuming that corrosion processes are influenced by the relative humidity evolution of atmosphere and/or of concrete. DEWEY : 620.1 ISSN : 0947-5117 En ligne : http://onlinelibrary.wiley.com/doi/10.1002/maco.200905578/abstract [article] Modelling the corrosion-induced cracking of reinforced concrete structures exposed to the atmosphere [texte imprimé] / V. L'Hostis, Auteur ; A. Millard, Auteur ; S. Perrin, Auteur . - 2012 . - pp. 943–947. Génie Mécanique Langues : Anglais (eng) in Materials and corrosion > Vol. 62 N° 10 (Octobre 2011) . - pp. 943–947 Mots-clés : Atmospheric  corrosion  Cementitious  materials  Modelling  Oxygen  reduction Résumé : The prediction of concrete cracking due to corrosion in atmospheric/carbonated conditions is a major issue for the evaluation of the durability of structures and the choice of maintenance policies. Because of the complexity of the phenomenon, a fully predictive approach is still missing. The proposed work can be considered as one step in this direction. It deals with a modelling study achieved at the Commissariat à l'Energie Atomique (CEA) with the CAST3M finite elements software. Model is constituted of three components: (1) concrete hydric behaviour, (2) rebar corrosion and (3) mechanical consequences on concrete (mainly concrete cracking). Actual developments consider analogies between rebar corrosion mechanisms and atmospheric corrosion ones, assuming that corrosion processes are influenced by the relative humidity evolution of atmosphere and/or of concrete. DEWEY : 620.1 ISSN : 0947-5117 En ligne : http://onlinelibrary.wiley.com/doi/10.1002/maco.200905578/abstract