ASTM C876 – 09 PDF

This standard is issued under the fixed designation C ; the number immediately following the designation indicates the 1 This test method is under the jurisdiction of ASTM Committee G01 on Not for Resale, 09/10/ 06 MDT. NDTCE’09, Non-Destructive Testing in Civil Engineering. Nantes, France The ASTM standard C [3] provides general guidelines for the. normativa astm c dirigida a concretos Designation: C − 09 DOI: /C The reference electrode selected shall provide a 2.

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For concrete submerged in seawater, using silver-silver chloride reference electrodes avoids chloride contamination problems that may occur aatm copper-copper sulfate electrodes.

You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. 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 occurrence of such phenomena represents mostly the durability problems of the material, especially when the structure is subjected to the chloride ions presence x876 marine or high salinity enviroment and large amounts of carbon dioxide CO 2processes known as chloride penetration and carbonation respectively [1,2,3].

Concrete surfaces that are coated or treated with sealers may not provide an acceptable electrical circuit. User Name Password Sign In.

This standard is not included in 099 packages. Your Alert Profile lists the documents that will be monitored. Search for related content. Corrosion of concrete rebar has been established as the main factor of the premature deterioration of reinforced concrete structures.

Need more than one copy? Current edition approved Nov. 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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A number in parentheses indicates the year of last reapproval. Historical Version s – view previous versions of standard. Related Content Load related web page information. Abstract Introduction Corrosion of concrete rebar has been established as the main factor of the premature deterioration of reinforced concrete structures.

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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, zstm 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. Classifications Corrosion Processes 2 – Oct 7 3: Articles by Delgado Tobon, A.

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We have astmm amendments or corrections for this standard. Subscription pricing is determined by: It shall consist of a sponge or several sponges pre-wetted with a low electrical resistance contact solution. Concrete surfaces that are coated or asrm with sealers may not provide an acceptable electrical circuit. The basic configuration of the electrical circuit is shown in Fig.

Please first verify your email before subscribing to alerts. Corrosion monitoring of steel in concrete by galvanostatic pulse technique. Potentials mea- sured by reference electrodes other than saturated copper- copper sulfate should be converted to the copper-copper sulfate 4 Hampel, C. Concrete cover in excess of 3 in.

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It was obtained a system for in situ monitoring of corrosion for reinforced concrete, that allows to estimate the corrosion probability on rebar, where the user send a text message, to start the test in the system and in return, via GPRS General Packet Radio Servicethe equipment disposes the data trend on a graphic trough a web server on an internet domain figure 1.

Concrete cover in excess of 3 in.

Experiments and Results It was obtained a system for in situ monitoring of corrosion for reinforced concrete, that allows to estimate the corrosion probability on rebar, where the user send a text message, to start the test in the system and in return, via GPRS General Packet Radio Servicethe equipment disposes the data trend on a graphic trough a web server on an internet domain figure 1.

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This standard is also available to be included in Standards Subscriptions. 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. The system was tested on a building of the University complex, where its performance was evaluated using three different reference electrodes, obtaining an error over the measurement, between the standard and the system, of 6.

Therefore, the present work shows the development and implementation of a system for in situ monitoring of corrosion, for any reinforced concrete structure based on ASTM C [5] standard for measuring half-cell potential, with which it is possible to determine the corrosion probability of rebar in reinforced concrete structures. Given the importance of preserving civil structures, is evident the strong necessity of obtaining a system with great flexibility to perform the estimation in situ of the corrosive state, capable to dispose the information for immediate consultation anywhere with minimum internet access.

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The values given in parentheses are mathematical conversions to SI units that are provided for v876 only and are not considered standard. 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. Enviado por Roberta flag Denunciar. Originally approved in Link to Active This link will always route to the current Active version of the standard.

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