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  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 with copper-copper sulfate electrodes.
350388298 ASTM C876 15 Corrosion Potentials of Uncoated Reinforcing Steel in Concrete
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Concrete surface in building interiors and desert environments lose sufficient moisture so that awtm concrete resistivity becomes so high that special testing techniques not covered in this test method may be required see 5.
Concrete surfaces that are coated or treated with sealers may not provide an accept- able electrical circuit. Corrosion monitoring of steel in concrete by galvanostatic pulse technique. Enviado por Roberta flag Denunciar. Current edition approved Nov. The occurrence of such phenomena represents mostly the durability problems of the material, especially when the structure is subjected to the chloride ions presence in marine or high salinity enviroment and large amounts of carbon dioxide CO 2processes known as chloride penetration and carbonation respectively [1,2,3].
We have no amendments or corrections for this standard. Proceed to Checkout Continue Shopping. No further reproductions authorized. Add to Alert PDF. It was obtained a system for in situ asym 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.
International Journal of Electrochemical Science. 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.
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The basic configuration qstm the electrical circuit is shown in Fig. Please first verify your email before subscribing to alerts. You may delete a document from your Alert Profile at any time. 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 values given in parentheses are mathematical conversions to SI units that are provided for information only and are not ast, standard. If the document is revised or amended, you will be notified by email. International Journal of Electrochemistry Sciencev. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
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Current VolumeMA Articles by Delgado Tobon, A. Concrete cover in excess of 3 in.
It shall consist of a sponge or several sponges pre-wetted with a low electrical resistance contact solution. Abstract Introduction Corrosion of ast, rebar has been established as the main factor of the premature deterioration of reinforced concrete structures.
Originally f876 in 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.
The basic configuration of the electrical circuit is shown in Fig. Historical Version s – view previous versions of standard. Calomel astn electrodes have been used in laboratory studies.