Electrode Configurations for Resistivity Measurements on Concrete

W. John McCarter, Gerry Starrs, Siva Kandasami, Rod Jones, Malcolm Chrisp

    Research output: Contribution to journalArticlepeer-review

    44 Citations (Scopus)


    In this study, two- and four-electrode arrangements were used to evaluate the electrical resistance (hence resistivity) of saturated concrete specimens using both embedded rod-electrodes, external plate-electrodes, and combinations thereof Measurements were obtained mainly at a fixed frequency of 1 kHz. It is shown that the two-electrode external plate measurement system gave higher resistivity values than the four-electrode system; however studying the electrical response in terms of complex impedance, over the frequency range 1 to 10 MHz, revealed that the sponge-contacting system used in the two-electrode method introduced a spurious resistance attributed to the sponge-sample interface.

    Original languageEnglish
    Pages (from-to)258-264
    Number of pages7
    JournalMaterials Journal
    Issue number3
    Publication statusPublished - 2009


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