Study of activation energy in soil through elastic wave velocity and electrical resistivity

Jong-Sub Lee, Yong Hoon Byun, Hyung Koo Yoon

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The elastic wave velocity and electrical resistivity of a medium are affected by changes in temperature, which can cause phase changes. The objective of this study was to predict the activation energy based on the Arrhenius equation using the elastic wave velocity and electrical resistivity. Sand with a degree of saturation of 40% was chosen as the medium; the characterization varied during freezing and thawing mechanisms. Silt was added to create a sand–silt mixture to observe the application of the Arrhenius equation under various soil conditions. The compressional wave velocity and shear wave velocity were measured using a piezo disk element and bender element. Four electrodes were used to measure the electrical resistivity of the soil. The temperatures were varied from 10 to −10°C. A thermocouple was installed in the specimen to accurately measure the temperature. The activation energy, which is a crucial parameter in the Arrhenius equation, was calculated using the relationship between the temperature and output values. The activation energies based on the elastic wave velocity and electrical resistivity exhibited different ranges due to the various factors causing chemical reactions in the final products. This study demonstrates that it is possible to predict the activation energy using elastic waves and electrical resistivity during temperature changes.

Original languageEnglish
JournalVadose Zone Journal
Volume16
Issue number6
DOIs
Publication statusPublished - 2017 May 1

ASJC Scopus subject areas

  • Soil Science

Fingerprint Dive into the research topics of 'Study of activation energy in soil through elastic wave velocity and electrical resistivity'. Together they form a unique fingerprint.

  • Cite this