ASTM C876 PDF

This standard is issued under the fixed designation C; the number 1 This test method is under the jurisdiction of ASTM Committee G01 on. Revisiting the ASTM C standard for corrosion of reinforcing steel: On the correlation between corrosion potential and polarization resistance. This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles.

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No further reproductions authorized. Current edition approved Nov. The basic configuration of the electrical circuit is shown in Fig. Last previous edition approved in as C— The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

350388298 ASTM C876 15 Corrosion Potentials of Uncoated Reinforcing Steel in Concrete

Potentials mea- sured by reference electrodes other than saturated copper- copper sulfate should be converted to the copper-copper sulfate 4 Astj, C. Historical Astn s – view previous versions of standard.

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.

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. Enviado por Roberta flag Denunciar.

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It is often necessary to use other data such as chloride contents, depth of carbonation, delamination survey findings, rate of corrosion results, and environmental exposure conditions, in addition to corrosion potential measurements, to formulate conclusions concerning corrosion activity of embedded steel and its probable effect on the service life of a structure.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Link to Active This link will always route to the current Active version of the standard. Concrete cover in excess of 3 in. The sponge may be folded around and attached to the tip of the reference electrode so that it provides electrical astmm between the porous plug and the concrete member. It is often necessary to use other data such as chloride contents, depth of carbonation, delamination survey findings, rate of corrosion results, and environmental exposure conditions, in addition to corrosion potential measurements, to formulate conclusions concerning corrosion activity of embedded steel and its probable effect on the service life of a structure.

Concrete surfaces that are coated or treated with sealers may not provide an acceptable electrical circuit. Calomel reference electrodes have been used in laboratory studies. For concrete submerged in seawater, using silver-silver chloride reference electrodes avoids chloride contamination problems atsm may occur with copper-copper sulfate electrodes.

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Concrete surfaces that are coated or treated with sealers may not provide an accept- able electrical circuit.

It is astj responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

ASTM C Half-Cell Potentials of Uncoated Reinforcing Steel | CTL

It is the responsibility of the user of this standard to establish appro- priate safety and health practices and determine the applica- bility astn regulatory limitations prior to use. Significance and Use 4. Concrete cover in excess of 3 in. A number in parentheses indicates the year of last reapproval.

Originally zstm in The basic configuration of the electrical circuit is shown in Fig. It shall consist of a sponge or several sponges pre-wetted with a low electrical resistance contact solution.

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