J. Phys. IV France
Volume 136, November 2006
Page(s) 71 - 78
Publié en ligne 22 décembre 2006
Corrosion and Long Term Performance of Concrete in NPP and Waste Facilities
V. L'Hostis, F. Foct and D. Féron
J. Phys. IV France 136 (2006) 71-78

DOI: 10.1051/jp4:2006136008

Passivation, localised corrosion and general corrosion of steel in concrete and bentonite. Theory and experimentals

A. Pourbaix1 and V. L'Hostis2

1  CEBELCOR, Avenue Paul Héger, Grille 2, 1000 Bruxelles, Belgium
2  CEA Saclay, DEN/DANS/DPC/SCCME/LECBA, Bât. 158, 91191 Gif-sur-Yvette Cedex, France

(Published online 22 December 2006)

It has been argued in various places that prediction of the behaviour of corrosion allowance materials is easier than for passive materials which may undergo localised corrosion. The mechanisms of localised corrosion are presented in this paper, together with supporting experimental facts. Important parameters are pH and aggressive ions in the environment, protection potential and changes of electrode potentials with time.

© EDP Sciences 2006