Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5439944 | Corrosion Science | 2017 | 21 Pages |
Abstract
Corrosion is the major degradation pathway affecting reinforced concrete structures. In the long-term, the rust layer might become thick and slow down the diffusion of oxygen from the atmosphere to the steel. With this in mind, the mineralogy, microstructure and diffusion properties of an old and thick corrosion product layer were investigated. Despite the presence of macropores, the gas diffusion coefficient was found to be low. The impact of the layer on the oxygen diffusion was evaluated using Fick's law. The results showed that the layer could reduce the flux of oxygen only in a specific configuration.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Stéphane Poyet, Wissem Dridi, Valérie L'Hostis, Dietmar Meinel,