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Influence of voltage on chloride diffusion coefficients from chloride migration tests

Authors
Journal
Cement and Concrete Research
0008-8846
Publisher
Elsevier
Publication Date
Volume
26
Issue
8
Identifiers
DOI: 10.1016/0008-8846(96)00094-4

Abstract

Abstract A chloride migration test method is described and test results are given for concrete subjected to a range of potential gradients. A method for setting the potential across the sample length using reference electrodes and Luggin capillaries is described. Apparent and effective diffusion coefficients were calculated from chloride break-through time and steady state chloride flux respectively at each potential. Accounting for polarization and iR drop losses is significant particularly at lower applied potentials.

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