Measurements of polarization decay of steel coupons in salt water, and reinforced concrete pilings in seawater are presented. A simple nested equivalent circuit with two time constants was used to simulate the potential decay behavior of the steel in concrete. A procedure for determining the equivalent circuit parameters from polarization decay data is presented.

Subject
Electric current, Circuits, Steel structures, Electrochemical impedance spectroscopy, Voltage, Pilings, Steel coupons, Capacitance, Constants, Steel, Polarization decay, Concrete, Electrode potential
Keywords:
Corrosion, reinforced concrete structures, electrochemical impedance spectroscopy, polarization decay, equivalent circuit, time domain
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1994
Association for Materials Protection and Performance (AMPP)
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