Non-isothermal volume change behavior of saturated sand subjected to minimal vertical effective stress

Yize Pan, Alessandro F. Rotta Loria*

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

Abstract

To date, the majority of the available studies on the volume change behavior of soils under non- isothermal conditions have focused on fine-grained soils. Only a limited number of investigations have been made available about coarse-grained soils despite their abundance in practice, with contradictory features. To enrich the current knowledge about the volume change behavior of coarse-grained soils under non-isothermal conditions, this investigation presents the results of oedometric tests with temperature control performed on saturated sand. The influence of relative density on the volume change behavior of the tested material under non-isothermal conditions is investigated under a minimal level of applied vertical effective stress. The results show an expansive volume change upon heating and contractive volume change upon cooling for all relative densities. The magnitude of the contraction is more significant than that of the expansion, leading to a residual contractive volume change after one cycle of heating and cooling. The results of this study enrich the current literature about the volume change behavior of coarse-grained soils under non-isothermal conditions. Such competence may be considered for applications at the interface of geomechanics and energy wherein temperature variations occur and characterize the response of coarse-grained soils.

Original languageEnglish (US)
Article number09008
JournalE3S Web of Conferences
Volume205
DOIs
StatePublished - Nov 18 2020
Event2nd International Conference on Energy Geotechnics, ICEGT 2020 - La Jolla, United States
Duration: Sep 20 2020Sep 23 2020

ASJC Scopus subject areas

  • Environmental Science(all)
  • Energy(all)
  • Earth and Planetary Sciences(all)

Fingerprint

Dive into the research topics of 'Non-isothermal volume change behavior of saturated sand subjected to minimal vertical effective stress'. Together they form a unique fingerprint.

Cite this