Corrosion condition measurement of steel reinforcement in concrete is important in concreteconstructions. Electrochemical impedance spectroscopy (EIS) is one of the effective technique formeasuring corrosion condition based on the electrical impedance value. In this contribution, thereinforcing steel corrosion conditions in concrete bridge decks were studied. Several effects ofparameters including the presence of a sealant, temperature and moisture content were investigated.Results suggest the EIS is a valuable tool for non-destructive bridge deck condition assessment. Thebest frequency range used for measurement is 100 Hz to 1 kHz.
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