ASTM C876-91 PDF

A concrete surface that has dried to the extent that it is a dielectric and surfaces that are coated with a dielectric material will not provide an acceptable electrical circuit. The basic configuration of the electrical circuit is shown in Fig. 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. Your Alert Profile lists the documents that will be monitored.

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We'd like to understand how you use our websites in order to improve them. Register your interest. Corrosion of rebar in concrete structures is one among the various causes impairing its long-term durability. Precise assessment of corrosion rate CR is of prime importance to evaluate the structural safety as well as for estimation of service life of concrete structures. Among the electrochemical techniques, Galvanostatic Pulse Technique GPT is very promising for field mapping due to its rapidity.

The reliability of GPT in determining the CR under passive and active state of rebar has been carried out using small size laboratory specimens and large scale aged concrete structures. In aged structures, the change in microstructure of concrete and loss of moisture from the concrete make the potential of rebar and resistivity of concrete more unpredictable and mislead the status of rebar embedded inside the concrete.

This is a preview of subscription content, log in to check access. Rent this article via DeepDyve. ASTM C Google Scholar. Basseler, A. Biegovic, D. Birbilis, N. Broomfield, J.

Elsener Feliu, S. Flis, J. Frolund, T. Glass, G. Gonzalez, J. Grantham, M. Gulikers, J. Hachani, L. Jones, D. Principles and Prevention of Corrosion , 2nd ed. Mccarter, W. Myrdal, R.

Newton, C. Sagoe-crentsil, K. Sathyanarayanan, S. Stern, M. A theoretical analysis of the shape of polarization curves. Videm, K. Videm K. NACE International. Zivica, V. Download references. Correspondence to L. Reprints and Permissions. Vedalakshmi, R. Reliability of Galvanostatic Pulse Technique in assessing the corrosion rate of rebar in concrete structures: Laboratory vs field studies.

Download citation. Received : 12 October Revised : 25 January Accepted : 03 March Published : 28 October Issue Date : November Search SpringerLink Search. Abstract Corrosion of rebar in concrete structures is one among the various causes impairing its long-term durability. Saraswathy Dept. Ann Authors R. Vedalakshmi View author publications. You can also search for this author in PubMed Google Scholar.

View author publications. Rights and permissions Reprints and Permissions. About this article Cite this article Vedalakshmi, R.

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We'd like to understand how you use our websites in order to improve them. Register your interest. Corrosion of rebar in concrete structures is one among the various causes impairing its long-term durability. Precise assessment of corrosion rate CR is of prime importance to evaluate the structural safety as well as for estimation of service life of concrete structures. Among the electrochemical techniques, Galvanostatic Pulse Technique GPT is very promising for field mapping due to its rapidity.

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Barrios-Durstewitz , C. Gaona-Tiburcio , F. Additives, such as fly ash, microsilica, rice husk ash, and cane sugar bagasse ash, have a size breakdown that allows the reduction of concrete pore size and, consequently, may reduce the corrosion process. All specimens were placed in a 3. The results showed that reinforced concrete containing sugar cane bagasse ash has the lowest corrosion rates in comparison to reinforced concrete without the additive. Introduction Corrosion is the loss of material and occurs when metals are exposed to the environment.

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