temperature; suction; oedometer; water retention; calibration; compression tests
Abstract :
[en] This paper reports the development of an advanced thermo-hydro-mechanical (THM) oedometer in order to characterize the behavior of soils under combined non-isothermal and unsaturated conditions. The simultaneous control of temperature, suction, and stress states within the sample required rigorous calibration. This THM oedometer accommodates samples 80 mm in diameter and 23 mm in height. The applied vertical stresses can reach values of up to 1 MPa, the controlled temperature ranges from 20 to 80°C, and the applied suction is up to 500 kPa. The paper thoroughly discusses the calibration of the device and presents some results of tests performed on sandy silt.
Disciplines :
Civil engineering
Author, co-author :
François, Bertrand ; Université de Liège - ULiège > Département Argenco : Secteur GEO3 > Géomécanique et géologie de l'ingénieur
Laloui, Lyesse
Language :
English
Title :
An Oedometer for Studying Combined Effects of Temperature and Suction on Soils
Publication date :
2010
Journal title :
Geotechnical Testing Journal
ISSN :
0149-6115
Publisher :
American Society for Testing and Materials, United States - Pennsylvania
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