Journal
CORROSION SCIENCE
Volume 56, Issue -, Pages 26-35Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2011.11.007
Keywords
Steel reinforced concrete; Polarization; Potential parameters
Funding
- University of South Florida
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The practical feasibility of Kelvin Probe measurement of potential of the concrete surface was demonstrated. The measurements require no contact between the reference element and the concrete. Potential readings when placing the probe on dry concrete were nearly instantaneous and highly stable, in contrast with considerable potential drift with a conventional wet-tip electrode. The probe output was only modestly sensitive to the reference element working distance. The shape and range of potential profiles measured with the probe on concrete with locally corroding reinforcement were consistent with those using a conventional wet-tip reference electrode, both identifying the anode location. (C) 2011 Elsevier Ltd. All rights reserved.
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