ASTM C876 PDF

June 14, 2019 posted by

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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Potentials mea- sured by reference electrodes other than saturated copper- copper sulfate should be converted to the copper-copper sulfate 4 Hampel, C.

Standard Test Method for Half-Cell Potentials of Uncoated Reinforcing Steel in Concrete

Concrete cover in excess of 3 in. Last previous edition approved in as C— Link to Active This link will always route to the current Active version of the standard. Historical Version s – view previous versions of standard. Concrete cover in excess of 3 in.

The sponge may be folded around and attached to the tip of the reference astmm so that it provides electrical continuity 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.

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Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. It is the responsibility of the user of this standard to establish appro- priate safety and health practices and determine the applica- bility 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.

Concrete surfaces that are coated or treated with sealers may not provide an accept- able electrical circuit. Calomel reference electrodes have been used in laboratory studies. Current edition approved Nov.

ASTM C 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 asmt in this test method may be required see 5.

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. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

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A number in parentheses indicates the year of last reapproval.

The basic configuration of the electrical circuit is shown in Fig. Enviado por Roberta flag Denunciar.

Concrete surface in building interiors and desert environments lose sufficient moisture so that the concrete resistivity becomes so high that cc876 testing techniques not covered in this test method may be required see 5. For concrete submerged in seawater, using silver-silver chloride reference electrodes avoids chloride contamination problems that may occur with copper-copper sulfate electrodes.

It shall consist of a sponge or several sponges pre-wetted with a low electrical resistance contact solution. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Originally approved in Significance and Use 4.

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

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

No further reproductions authorized.