Corrosion of steel bars in OPC mortar exposed to NaCl, MgCl2 and CaCl2: Macro- and micro-cell corrosion perspective / A. Poursaee in Cement and concrete research, Vol. 40 N° 3 (Mars 2010)  

Public ISBD [article]  inCement and concrete research > Vol. 40 N° 3 (Mars 2010) . - pp. 426–430 Titre : Corrosion of steel bars in OPC mortar exposed to NaCl, MgCl2 and CaCl2: Macro- and micro-cell corrosion perspective Type de document : texte imprimé Auteurs : A. Poursaee, Auteur ; A. Laurent, Auteur ; C.M. Hansson, Auteur Année de publication : 2012 Article en page(s) : pp. 426–430 Note générale : Bibliogr. Langues : Anglais (eng) Mots-clés : X-ray diffraction  Corrosion Chloride Résumé : In North America, corrosion of the steel rebar commonly occurs due to chloride attack from deicing salts. In Canada, based on the severity and temperature of the ambient environment, three different deicing salts, or combination of them, are used: NaCl, MgCl2 and CaCl2. In this paper, the effect of each of these salts on the corrosion of steel rebar and their impact on the durability of the mortar have been investigated. The results show that CaCl2 has the most negative effect on the steel and, in high concentrations, on the integrity of the mortar. MgCl2 also deteriorates the mortar if used in high concentration, while NaCl has no apparent effect on mortar durability even in high concentration. En ligne : http://www.sciencedirect.com/science/article/pii/S0008884609002828 [article] Corrosion of steel bars in OPC mortar exposed to NaCl, MgCl2 and CaCl2: Macro- and micro-cell corrosion perspective [texte imprimé] / A. Poursaee, Auteur ; A. Laurent, Auteur ; C.M. Hansson, Auteur . - 2012 . - pp. 426–430. Bibliogr. Langues : Anglais (eng) in Cement and concrete research > Vol. 40 N° 3 (Mars 2010) . - pp. 426–430 Mots-clés : X-ray diffraction  Corrosion Chloride Résumé : In North America, corrosion of the steel rebar commonly occurs due to chloride attack from deicing salts. In Canada, based on the severity and temperature of the ambient environment, three different deicing salts, or combination of them, are used: NaCl, MgCl2 and CaCl2. In this paper, the effect of each of these salts on the corrosion of steel rebar and their impact on the durability of the mortar have been investigated. The results show that CaCl2 has the most negative effect on the steel and, in high concentrations, on the integrity of the mortar. MgCl2 also deteriorates the mortar if used in high concentration, while NaCl has no apparent effect on mortar durability even in high concentration. En ligne : http://www.sciencedirect.com/science/article/pii/S0008884609002828

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Potential pitfalls in assessing chloride-induced corrosion of steel in concrete / A. Poursaee in Cement and concrete research, Vol. 39 N° 5 (Mai 2009)  

Public ISBD [article]  inCement and concrete research > Vol. 39 N° 5 (Mai 2009) . - pp. 391–400 Titre : Potential pitfalls in assessing chloride-induced corrosion of steel in concrete Type de document : texte imprimé Auteurs : A. Poursaee, Auteur ; C.M. Hansson, Auteur Année de publication : 2009 Article en page(s) : pp. 391–400 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Corrosion  Electrochemical properties  Pore solution  Acceleration  Potentiostatic polarisation Résumé : Electrochemical assessment of the condition of embedded reinforcing bar (rebar) in concrete is being carried out increasingly routinely, both in the laboratory and in the field. However, because of the perceived need to produce results very rapidly, the results may not, in fact, be representative of the actual behaviour of the rebar. This paper describes some of the pitfalls the authors have encountered in their own work and have, therefore, analysed and quantified, together with others which have appeared in the literature. ISSN : 0008-8846 En ligne : http://www.sciencedirect.com/science/article/pii/S000888460900026X [article] Potential pitfalls in assessing chloride-induced corrosion of steel in concrete [texte imprimé] / A. Poursaee, Auteur ; C.M. Hansson, Auteur . - 2009 . - pp. 391–400. Génie Civil Langues : Anglais (eng) in Cement and concrete research > Vol. 39 N° 5 (Mai 2009) . - pp. 391–400 Mots-clés : Corrosion  Electrochemical properties  Pore solution  Acceleration  Potentiostatic polarisation Résumé : Electrochemical assessment of the condition of embedded reinforcing bar (rebar) in concrete is being carried out increasingly routinely, both in the laboratory and in the field. However, because of the perceived need to produce results very rapidly, the results may not, in fact, be representative of the actual behaviour of the rebar. This paper describes some of the pitfalls the authors have encountered in their own work and have, therefore, analysed and quantified, together with others which have appeared in the literature. ISSN : 0008-8846 En ligne : http://www.sciencedirect.com/science/article/pii/S000888460900026X

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