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.

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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. Last previous edition approved in as C— 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.

Concrete cover in excess of 3 in. 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 c86 embedded steel and its probable effect on the service life of a structure.

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Concrete surface in building interiors and desert environments lose sufficient cc876 so that the concrete resistivity becomes so high that special testing techniques not covered in this test method may be required see 5. A number in parentheses indicates the year of last reapproval.

The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. It shall consist of a sponge or several sponges pre-wetted with a low electrical resistance contact solution.

The basic configuration of the electrical circuit is shown in Fig. Current edition approved Nov.

For concrete submerged in seawater, using asgm chloride reference electrodes avoids chloride contamination problems that may occur with copper-copper sulfate electrodes. Concrete cover in excess of 3 in.

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

Enviado por Roberta flag Denunciar. Originally approved in 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. c87

Significance and Use 4. Historical Version s – view previous versions of standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. Calomel reference electrodes have been used in laboratory studies. No further reproductions authorized.

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ASTM C, Test equipment Controls

The basic configuration of the electrical circuit is shown in Fig. Potentials mea- sured by reference electrodes other than aetm copper- copper sulfate should be converted to the copper-copper sulfate 4 Hampel, C.

Link to Active This link will always route to the current Active version of the standard.

Concrete surfaces that are coated 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. It is the responsibility of the user of this standard to establish astmm safety and health practices and determine the applicability of regulatory limitations prior to use.

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