Journal
CORROSION SCIENCE
Volume 110, Issue -, Pages 46-56Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2016.04.011
Keywords
Steel reinforced concrete; Pitting corrosion
Funding
- Research Council of Norway (RCN)
- Norwegian Public Roads Administration
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The influence of bulk resistivity on the kinetics of chloride-induced macro-cell corrosion of reinforcement was experimentally studied. It was found that the corrosion process was limited by a combination of anodic, ohmic and cathodic control for the geometrical conditions tested (anodes empty set 6mm, cathode-to-anode ratio 685). The cathodic partial process was independent of the bulk resistivity. Both the anodic and the ohmic partial processes were influenced by local conditions around the anode but were not directly related to the bulk resistivity. The findings indicate that a unique relationship does not exist between bulk concrete resistivity and the corrosion rate. (C) 2016 Elsevier Ltd. All rights reserved.
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