An experimental study of concrete resistivity and the effects of electrode configuration and current frequency on measurement

Oleiwi, HM; Wang, Y; Xiang, N; Augusthus Nelson, L; Chen, X; Shabalin, I

Abstract

Electrical resistivity, a measurable parameter of the state of concrete, plays an important role in the assessment of reinforced concrete structures. An experimental study using two-electrode method has been conducted to evaluate the resistivity of Portland cement concrete. Internal and external electrodes were varied in order to understand effect of the electrodes configuration, where carbon fibre (CF) sheets were employed as the internal electrodes and CF and copper sheets were used as external electrodes. Furthermore, frequency of applied current was varied from low to high, to identify the most suitable frequency that can be utilized for stable and reliable results. Optimised internal electrodes configuration and the current frequency of 10,000 Hz were used to measure the resistivity on a series of concrete cubes, which were made using three different water to cement ratios and four different chloride contents.

Citation

Oleiwi, H., Wang, Y., Xiang, N., Augusthus Nelson, L., Chen, X., & Shabalin, I. (2018, July). An experimental study of concrete resistivity and the effects of electrode configuration and current frequency on measurement. Presented at Sixth International Conference on Durability of Concrete Structures, University of Leeds, UK

• Presentation Conference Type: Other
• Conference Name: Sixth International Conference on Durability of Concrete Structures
• Conference Location: University of Leeds, UK
• Start Date: Jul 18, 2018
• End Date: Jul 20, 2018
• Publication Date: Jul 9, 2018
• Deposit Date: Jul 25, 2018
• Publicly Available Date: Aug 16, 2018
• Book Title: ICDCS 2018: Sixth International Conference on Durability of Concrete Structures
• ISBN: 9781849953948
• Related Public URLs: https://engineering.leeds.ac.uk/info/201479/conferences/270/sixth_international_conference_on_durability_of_concrete_structures_icdcs2018
• Additional Information: Access Information : Reproduced by permission of the ICDS2018 Secretariat.; Event Type : Conference; Funders : Iraqi Government