Characterization of corrosion products formed on steel rebars

Canadian Metallurgical Quarterly Vol. 51 (No.2), p. 228-234 ISSN Print: 0008-4433 Online ISSN: 1879-1395 2012 , 2012.


In this study, corrosion products on steel reinforcing bars (rebars) exposed in mortar contaminated with chlorides were characterised. For this purpose, scanning electron images were taken on steel surface and energy dispersive spectrometry analyses, as well X-ray diffraction was employed for quantitative characterisation using the Rietveld method. The main phases present were maghemite, goethite, lepidocrocite and akaganeite.