Rebar corrosion in carbonated concrete exposed to variable humidity conditions. Interpretation of Tuutti’s curve

This paper deals with the modelling of the rebar corrosion kinetics in unsaturated concrete cover. The concrete is assumed carbonated resulting in an active corrosion of steel. The corrosion kinetics is coupled with the ionic transport processes. Free corrosion in different concretes is studied in t...

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Bibliographic Details
Published in:Corrosion science 2009-08, Vol.51 (8), p.1747-1756
Main Authors: Dangla, P., Dridi, W.
Format: Article
Language:English
Subjects:
A. Concrete
Applied sciences
B. Modelling studies
C. Atmospheric corrosion
C. Oxidation
C. Oxygen reduction
Civil Engineering
Corrosion
Corrosion environments
Engineering Sciences
Exact sciences and technology
Metals. Metallurgy
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Summary:This paper deals with the modelling of the rebar corrosion kinetics in unsaturated concrete cover. The concrete is assumed carbonated resulting in an active corrosion of steel. The corrosion kinetics is coupled with the ionic transport processes. Free corrosion in different concretes is studied in terms of ambient relative humidity. The numerical results obtained by the finite volume method are discussed and compared with a reported experiment performed on a carbonated concrete.
ISSN:0010-938X
1879-0496
DOI:10.1016/j.corsci.2009.04.029