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Homepage>ASTM Standards>77>77.140>77.140.15>ASTM C0876-22B - Standard Test Method for Corrosion Potentials of Uncoated Reinforcing Steel in Concrete
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Released: 01.10.2022

ASTM C0876-22B - Standard Test Method for Corrosion Potentials of Uncoated Reinforcing Steel in Concrete

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

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Standard number:C0876-22B
Released:01.10.2022
Status:Active
Pages:8
Section:03.02; 04.02
Keywords:concrete-corrosion activity; concrete-corrosion of reinforcing steel; corrosion; corrosion activity; corrosion potentials;
DESCRIPTION

1.1 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.

1.2 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 (see 5.1.4.1). Concrete surfaces that are coated or treated with sealers may not provide an acceptable electrical circuit. The basic configuration of the electrical circuit is shown in Fig. 1.

FIG. 1 Reference Electrode Circuitry

Reference Electrode CircuitryReference Electrode Circuitry

1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.