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ASTM C876 – Standard Test Method for Corrosion Potentials of Uncoated Reinforcing Steel in Concrete


This test method covers the estimation of the electrical corrosion potential of uncoated reinforcing steel in field and laboratory concrete, for the purpose of determining the corrosion activity of the reinforcing steel.

This test method is limited by electrical circuitry. Concrete surface in building interiors and desert environments lose sufficient moisture so that the concrete resistivity becomes so high that special testing techniques not covered in this test method may be required. Concrete surfaces that are coated or treated with sealers may not provide an acceptable electrical circuit.


concrete-corrosion activity; concrete-corrosion of reinforcing steel; corrosion; corrosion activity; corrosion potentials