| Numéro |
J. Phys. IV France
Volume 136, November 2006
|
|
|---|---|---|
| Page(s) | 79 - 88 | |
| DOI | https://doi.org/10.1051/jp4:2006136009 | |
| 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) 79-88
DOI: 10.1051/jp4:2006136009
Institute of Construction Science "Eduardo Torroja" CSIC, C/Serrano Galvache 4, 28033 Madrid, Spain
(Published online 22 December 2006)
© EDP Sciences 2006
V. L'Hostis, F. Foct and D. Féron
J. Phys. IV France 136 (2006) 79-88
DOI: 10.1051/jp4:2006136009
Comparison between several methods for determining the depassivation threshold value for corrosion onset
P.G. de Viedma, M. Castellote and C. AndradeInstitute of Construction Science "Eduardo Torroja" CSIC, C/Serrano Galvache 4, 28033 Madrid, Spain
(Published online 22 December 2006)
Abstract
Numerous studies have been already carried out to study
the chloride threshold value for depassivation of the steel embedded in
concrete. Most of them were based on natural penetration of chlorides, whose
main disadvantage is that it is very time consuming and makes necessary a
long time to obtain reliable data. Other methods used are the potentiostatic
tests that, depending on the potential applied, may also take very long.
Recently, an accelerated method to determine the threshold value of
corrosion of steel by application of electrical fields has been developed.
In this paper, results obtained, for the same concrete, using every method
are given as well as a comparison of the advantages and drawbacks of each of
them.
© EDP Sciences 2006