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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ASTM C Standard

A number in parentheses indicates the year of last reapproval. 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. Link to Active This link will always route to the current Active version of the standard.

ASTM C, Test equipment Controls

It shall consist of a sponge or several sponges pre-wetted with a low electrical resistance contact solution. Concrete cover in excess of 3 in. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Concrete cover in excess of 3 in.

No further reproductions authorized.

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

Enviado por Roberta flag Denunciar. 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.

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It is the responsibility of the user c86 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. Concrete surfaces that are coated or treated with sealers may not provide an accept- able electrical circuit.

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.

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.

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 awtm its probable effect on the service life of a structure. It is the responsibility of the user of this standard to establish appro- priate safety c8766 health practices and determine the applica- bility of asfm limitations prior to use.

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Originally approved in Last previous edition approved in as C— 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. Current edition approved Nov.

For concrete submerged in seawater, using silver-silver chloride reference electrodes avoids chloride contamination problems that may occur with copper-copper sulfate electrodes. Historical Version s – view previous versions of standard. Calomel reference electrodes have been used in laboratory studies. Potentials mea- sured by reference electrodes other than saturated copper- copper sulfate should be converted to the copper-copper sulfate 4 Hampel, C.

The basic configuration of the electrical circuit is shown in Fig. Significance and Use 4.