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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Concrete surfaces that are coated or treated with sealers may not provide an accept- able electrical circuit. The sponge may be folded around and attached to the tip of the reference electrode so that it provides electrical continuity between the porous plug and the concrete member.

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

The values given in parentheses are mathematical conversions asstm SI units that are provided for information only and are not considered 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. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. No further reproductions authorized.

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For concrete submerged in seawater, using silver-silver chloride reference electrodes avoids chloride contamination problems that may occur with copper-copper sulfate electrodes. Originally approved in Last previous edition approved in as C— Current edition approved Nov. Concrete cover in excess of 3 in.

Concrete cover in excess of 3 in. Potentials mea- sured by reference electrodes other than saturated copper- copper sulfate should be converted to the copper-copper sulfate 4 Hampel, C. A number in parentheses indicates the year of last reapproval. It shall consist of a sponge or several sponges pre-wetted with a astj electrical resistance contact solution. The basic configuration of the electrical circuit is shown in Fig.

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.

Historical Version s – view previous versions of standard. Significance and Use 4. 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.

ASTM C Standard

Enviado por Roberta flag Denunciar. Calomel asstm electrodes have been used in laboratory studies. Concrete surface in building interiors and desert environments lose sufficient moisture so that the concrete resistivity becomes so axtm that special testing techniques not covered in this test method may be required see 5.

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Link to Active This link will always route to the current Active version of the standard. Concrete surfaces that are asmt or treated with sealers may not provide an acceptable electrical circuit. 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. The basic configuration of the electrical circuit is shown in Fig. Axtm 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.