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Electrical resistivity of concrete - Part I: Frequency dependence at various moisture contents and temperatures



Title: Electrical resistivity of concrete - Part I: Frequency dependence at various moisture contents and temperatures
Author(s): J-M. Østvik, C.K. Larsen, Ø. Vennesland, E.J. Sellevold, M.C. Andrade
Paper category : conference
Book title: 2nd International RILEM Symposium on Advances in Concrete through Science and Engineering
Editor(s): J. Marchand, B. Bissonnette, R. Gagné, M. Jolin and F. Paradis
Print-ISBN: 2-35158-003-6
e-ISBN: 2351580028
Publisher: RILEM Publications SARL
Publication year: 2006
Nb references: 10
Language: English


Abstract: The electrical resistivity of concrete is probably the best available parameter to determine the durability of concrete structures in terms of corrosion. Measurements of the resistivity are mainly performed by AC methods at various frequencies. The present results demonstrate frequency dependence for AC measurements of the resistivity. The effect is dependent on the moisture content and temperature of concrete. However, it appears that measurements of the resistivity of concrete exposed to Nordic climatic conditions can be performed at a fixed frequency in the interval 100 Hz to 10 kHz and represent the relevant DC resistivity with acceptable accuracy.

Keywords: concrete, resistivity, durability, corrosion, EIS


Online publication: 2006-08-02
Classification: 3.3 Theme 3: Monitoring, Repair and Maintenance of Concrete Structures
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2351580028.105