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A new method forin-situ measurement of electrical resistivity of reinforced concrete

Feliu, S. / Andrade, C. / González, J. A. / Alonso, C.

Abstract A new method is described for thein-situ measurement of electrical resistivity of concrete structures. The method is based on the early work of J. Newman who calculated the electrolyte resistivity between a disk and a counter electrode located at infinity. This method has the advantage compared with Wenner's of using a single small electrode for the measurements. In this paper, results are presented comparing this method with Wenner's and with results carried out using a conductivity cell in electrolytes. Finally, values of resistivity are compared to corrosion intensity, and a threshold for active corrosion is suggested.

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A new method forin-situ measurement of electrical resistivity of reinforced concrete

Feliu, S. / Andrade, C. / González, J. A. / Alonso, C.

Abstract A new method is described for thein-situ measurement of electrical resistivity of concrete structures. The method is based on the early work of J. Newman who calculated the electrolyte resistivity between a disk and a counter electrode located at infinity. This method has the advantage compared with Wenner's of using a single small electrode for the measurements. In this paper, results are presented comparing this method with Wenner's and with results carried out using a conductivity cell in electrolytes. Finally, values of resistivity are compared to corrosion intensity, and a threshold for active corrosion is suggested.

A new method forin-situ measurement of electrical resistivity of reinforced concrete

Feliu, S. / Andrade, C. / González, J. A. / Alonso, C.

Abstract A new method is described for thein-situ measurement of electrical resistivity of concrete structures. The method is based on the early work of J. Newman who calculated the electrolyte resistivity between a disk and a counter electrode located at infinity. This method has the advantage compared with Wenner's of using a single small electrode for the measurements. In this paper, results are presented comparing this method with Wenner's and with results carried out using a conductivity cell in electrolytes. Finally, values of resistivity are compared to corrosion intensity, and a threshold for active corrosion is suggested.

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Title:

A new method forin-situ measurement of electrical resistivity of reinforced concrete

Contributors:

Feliu, S. (author) / Andrade, C. (author) / González, J. A. (author) / Alonso, C. (author)

Published in:

Materials and Structures ; 29

Publication date:

1996

ISSN:

DOI:

https://doi.org/10.1007/BF02486344

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

Cathodic Protection , Electrical Resistivity , Concrete Slab , Active Corrosion , Corrosion Rate

Classification:

BKL: 56.45 Baustoffkunde / 51.30 Werkstoffprüfung, Werkstoffuntersuchung
Local classification TIB: 275/6500 / 250/6500

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