Acta Geophysica

, Volume 64, Issue 6, pp 2077–2091 | Cite as

Variations of Strength, Resistivity and Thermal Parameters of Clay after High Temperature Treatment

  • Qiang Sun
  • Weiqiang Zhang
  • Yuliang Zhang
  • Lining Yang
Open Access


This paper reports the variations of strength, resistivity and thermal parameters of clay after high-temperature heating. Experiments were carried out to test the physical properties of clay heated at temperatures ranging from room temperature to 800°C in a furnace. The experiment results show that below 400°C the uniaxial compressive strength and resistivity change very little. However, above 400°C, both increase rapidly. At a temperature under 400°C, the thermal conductivity and specific heat capacity decrease significantly. The thermogravimetric analysis (TG) and differential scanning calorimeter (DSC) test indicate that a series of changes occur in kaolinite at temperatures from 400 to 600°C, which is considered the primary cause of the variation of physical and mechanical properties of clay under high temperatures.

Key words

high temperature clay strength resistivity thermal parameters 


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Copyright information

© Sun et al. 2016

This is an open access article distributed under the Creative Commons Attribution-NonCommercial-NoDerivs license,

Authors and Affiliations

  • Qiang Sun
    • 1
  • Weiqiang Zhang
    • 1
  • Yuliang Zhang
    • 1
  • Lining Yang
    • 1
  1. 1.School of Resources and GeosciencesChina University of Mining and TechnologyXuzhou, Jiangsu ProvinceP.R. China

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