Caltech Engineering Services offer DV-05 rebar corrosion voltmeter kit complete economical kit for identifying areas of rebar corrosion in concrete as per ASTM C876. This standard describes procedure for Half-Cell Potentials of Uncoated Reinforcing Steel in Concrete

DV-05 rebar corrosion voltmeter kit includes half cell and voltmeter integrated with a high impedance and long earth cable and despensing damp sponge. When rebar corrosion voltmeter DV-05 is connected between the reinforcing steel, Cu-CuSO4 reference half cell electrode (Fontana-101F) and specially made highly electrical conductive despensing sponge on the concrete surface where a measurement can be made for the half-cell potential. This gives measurement of the probability of corrosion activity. By testing at a fixed distance apart, a grid of half-cell potentials can be developed and areas delineated. This test method covers the estimation of the electrical half-cell potential of uncoated reinforcing steel in field and laboratory concrete, for the purpose of determining the corrosion activity of the reinforcing steel