Correlation of electrical conductivity, compressive strength, and permeability of repair materials
Date
2020
Authors
Wang, Boyu
Gupta, Rishi
Journal Title
Journal ISSN
Volume Title
Publisher
ACI Materials
Abstract
In recent years, the construction industry has invested a lot of effort in increasing concrete 2 safety and in extending the service life of structures. Several test methods, such as water 3 penetration, surface/bulk electrical resistivity, rapid chloride permeability (RCP), and half-cell 4 potential, have been proposed to study concrete durability. This study establishes the 5 relationship between multiple durability test methods in the context of concrete repair, which 6 was rarely selected as the object for study. By means of experimental study, this study finds 7 that surface resistivity has a linear relation to bulk resistivity and a polynomial relation to water 8 permeability. No relationship can be established between concrete resistivity and compressive 9 strength, though high-strength concrete tends to have a high resistivity. RCP test results do not 10 correlate well with resistivity measurements, which requires further study to overcome its 11 heating and binding effect when measurements are being taken.
Description
Keywords
permeability, electrical resistivity, compressive strength, Half-cell potential, correlation analysis
Citation
Wang, B., & Gupta, R. (2020). Correlation of electrical conductivity, compressive strength, and permeability of repair materials. ACI Materials, 117(2), 53-63. https://doi.org/10.14359/51722396.