Properties and variation of electrical resistivity due to temperature change

Jung Hee Park, Mingu Kang, Jong-Sub Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The objective of this study is to determine the variation in the electrical resistivity of unsaturated soils due to temperature change. A nylon cell is designed for the installation of electrodes and the preparation of specimens, which are sand-silt mixtures with different degrees of saturation. To reflect the effect of the geometry of the electrodes, a calibration is performed for the conversion of the electrical resistance measured in three specimens to electrical resistivity. The electrical resistances of the specimens are continuously monitored as their temperature changes from 20°C to -10°C. The experimental results reveal that a higher degree of saturation results in a lower electrical resistivity at 20°C. The electrical resistivity increases gradually with a decrease in temperature and sharply increases near the freezing point for all the unsaturated specimens. For frozen soils, the electrical resistivity slowly increases as the temperature decreases. This study yields fundamental information regarding the electrical resistivity of unsaturated frozen soils and the practical application of resistivity for frozen-ground characterization.

Original languageEnglish
Title of host publicationGeotechnical Special Publication
PublisherAmerican Society of Civil Engineers (ASCE)
Pages1525-1531
Number of pages7
Edition234 GSP
ISBN (Print)9780784413272
DOIs
Publication statusPublished - 2014 Jan 1
Event2014 Congress on Geo-Characterization and Modeling for Sustainability, Geo-Congress 2014 - Atlanta, GA, United States
Duration: 2014 Feb 232014 Feb 26

Other

Other2014 Congress on Geo-Characterization and Modeling for Sustainability, Geo-Congress 2014
CountryUnited States
CityAtlanta, GA
Period14/2/2314/2/26

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ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Civil and Structural Engineering
  • Building and Construction
  • Architecture

Cite this

Park, J. H., Kang, M., & Lee, J-S. (2014). Properties and variation of electrical resistivity due to temperature change. In Geotechnical Special Publication (234 GSP ed., pp. 1525-1531). American Society of Civil Engineers (ASCE). https://doi.org/10.1061/9780784413272.149