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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It is the responsibility of the user of this standard to establish appro- priate safety and adtm 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. Historical Version 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 cc876 not covered in this test method may be required see 5. Enviado por Roberta flag Denunciar. For concrete submerged in seawater, using silver-silver chloride reference electrodes avoids chloride contamination problems that may occur with copper-copper sulfate electrodes.

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

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. Calomel reference electrodes have been used in laboratory studies. Concrete cover in excess of 3 in. Concrete surfaces that are coated or treated with sealers may not provide an acceptable electrical circuit.

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. Potentials mea- sured by reference electrodes other than saturated copper- copper sulfate should be converted to the copper-copper sulfate 4 Hampel, C. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the asmt of regulatory limitations prior to use.

Concrete surfaces that are coated or treated with sealers may c867 provide an accept- able electrical circuit.

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

No further reproductions authorized. Link to Active This link will always route to the current Active version of the standard.

It shall consist of a sponge or several sponges asrm with a low electrical resistance contact solution.

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The basic configuration of the electrical circuit is shown in Fig. Originally approved in Last previous edition approved in as C— Concrete cover in excess of 3 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.

ASTM C, Test equipment Controls

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 ast 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 and its probable effect on the service life of a structure.

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

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