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Auteur E. Marie-Victoire
Documents disponibles écrits par cet auteur
Affiner la rechercheOn-site instantaneous corrosion rate measurements on a historical building / E. Marie-Victoire in European journal of environmental and civil engineering, Vol. 16 N° 3-4 (Mars/Avril 2012)
[article]
in European journal of environmental and civil engineering > Vol. 16 N° 3-4 (Mars/Avril 2012) . - pp. 505-523
Titre : On-site instantaneous corrosion rate measurements on a historical building Type de document : texte imprimé Auteurs : E. Marie-Victoire, Auteur ; V. Bouteiller, Auteur ; J-L. Garciaz, Auteur Année de publication : 2012 Article en page(s) : pp. 505-523 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Reinforced concrete Corrosion Potential mapping Resistivity mapping Linear polarisation resistance On site Natural ageing Résumé : Rebar corrosion is major decay encountered in the field of historical monuments made of reinforced concrete. In order to preserve a maximum of this cultural heritage, reliable on-site diagnosis tools are crucial. The purpose of the present study was to evaluate, on a naturally aged concrete, the impact on one hand of the environmental conditions and on the other hand of the device employed, on the electrochemical techniques commonly used on site. Three sets of electrochemical measurements (half-cell potential, resistivity and polarisation resistance) were carried out on Notre-Dame de Royan Church, affected by both carbonation and slight chloride pollution. The results have indicated that the seasonal impact was low compared to that of a raining event, but also that depending on the device used, significant differences were observed in the polarisation resistance values measured. However, a reliable qualitative diagnosis was systematically possible. DEWEY : 624 ISSN : 1964-8189 En ligne : http://www.tandfonline.com/doi/abs/10.1080/19648189.2012.668013 [article] On-site instantaneous corrosion rate measurements on a historical building [texte imprimé] / E. Marie-Victoire, Auteur ; V. Bouteiller, Auteur ; J-L. Garciaz, Auteur . - 2012 . - pp. 505-523.
Génie Civil
Langues : Anglais (eng)
in European journal of environmental and civil engineering > Vol. 16 N° 3-4 (Mars/Avril 2012) . - pp. 505-523
Mots-clés : Reinforced concrete Corrosion Potential mapping Resistivity mapping Linear polarisation resistance On site Natural ageing Résumé : Rebar corrosion is major decay encountered in the field of historical monuments made of reinforced concrete. In order to preserve a maximum of this cultural heritage, reliable on-site diagnosis tools are crucial. The purpose of the present study was to evaluate, on a naturally aged concrete, the impact on one hand of the environmental conditions and on the other hand of the device employed, on the electrochemical techniques commonly used on site. Three sets of electrochemical measurements (half-cell potential, resistivity and polarisation resistance) were carried out on Notre-Dame de Royan Church, affected by both carbonation and slight chloride pollution. The results have indicated that the seasonal impact was low compared to that of a raining event, but also that depending on the device used, significant differences were observed in the polarisation resistance values measured. However, a reliable qualitative diagnosis was systematically possible. DEWEY : 624 ISSN : 1964-8189 En ligne : http://www.tandfonline.com/doi/abs/10.1080/19648189.2012.668013 Study of the active/passive corrosion behaviour of reinforced concrete slabs using different devices / V. L'Hostis in European journal of environmental and civil engineering, Vol. 16 N° 3-4 (Mars/Avril 2012)
[article]
in European journal of environmental and civil engineering > Vol. 16 N° 3-4 (Mars/Avril 2012) . - pp. 481-490
Titre : Study of the active/passive corrosion behaviour of reinforced concrete slabs using different devices Type de document : texte imprimé Auteurs : V. L'Hostis, Auteur ; E. Marie-Victoire, Auteur ; V. Bouteiller, Auteur Année de publication : 2012 Article en page(s) : pp. 481-490 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Reinforced concrete corrosion Electrochemical measurements Chlorides Carbonation Résumé : This paper deals with results of electrochemical measurements carried out on reinforced concrete slabs. Measurements were performed four times a year over a period of two years by means of three kinds of device: a Gamry© laboratory potentiostat, and Gecor6© and Galvapulse© on-site apparatuses. Results showed that all devices are able to detect passive corrosion. They coherently diagnose chloride-containing-slabs and can detect the depassivation of rebars. The variability of the depassivation time was pointed out as far as chloride-induced-corrosion is concerned. Conversely, corrosion levels proposed by the three devices are different in the case of carbonation (generalised)-induced corrosion, even if all of them detect the active corrosion state. This discrepancy showed that the use of these results in term of steel loss is not possible. DEWEY : 624 ISSN : 1964-8189 En ligne : http://www.tandfonline.com/doi/abs/10.1080/19648189.2012.668010 [article] Study of the active/passive corrosion behaviour of reinforced concrete slabs using different devices [texte imprimé] / V. L'Hostis, Auteur ; E. Marie-Victoire, Auteur ; V. Bouteiller, Auteur . - 2012 . - pp. 481-490.
Génie Civil
Langues : Anglais (eng)
in European journal of environmental and civil engineering > Vol. 16 N° 3-4 (Mars/Avril 2012) . - pp. 481-490
Mots-clés : Reinforced concrete corrosion Electrochemical measurements Chlorides Carbonation Résumé : This paper deals with results of electrochemical measurements carried out on reinforced concrete slabs. Measurements were performed four times a year over a period of two years by means of three kinds of device: a Gamry© laboratory potentiostat, and Gecor6© and Galvapulse© on-site apparatuses. Results showed that all devices are able to detect passive corrosion. They coherently diagnose chloride-containing-slabs and can detect the depassivation of rebars. The variability of the depassivation time was pointed out as far as chloride-induced-corrosion is concerned. Conversely, corrosion levels proposed by the three devices are different in the case of carbonation (generalised)-induced corrosion, even if all of them detect the active corrosion state. This discrepancy showed that the use of these results in term of steel loss is not possible. DEWEY : 624 ISSN : 1964-8189 En ligne : http://www.tandfonline.com/doi/abs/10.1080/19648189.2012.668010