A Simple Method for Air Volume Change Measurement in Triaxial Tests
Laudahn, A
Institute of Geotechnical and Tunnel Engineering, University of Innsbruck, Austria

Sosna, K
Department of Engineering Geology, Faculty of Science, Charles University, Prague, Czech Republic

Bohác, J
Department of Engineering Geology, Faculty of Science, Charles University, Prague, Czech Republic

(Received 25 May 2004; accepted 30 August 2004)

Abstract
The paper presents a simple and inexpensive device to measure the volume change of the pore-air of dry soil specimens in the drained triaxial tests under atmospheric conditions. The principle of the method was described by Bishop and Henkel (Bishop and Henkel 1962). The modified apparatus makes use of low-cost photoelectric sensors and computer control. The applicability of the method is demonstrated by a comparison with test data from conventional triaxial tests on water saturated specimens.

Keywords:
drained triaxial test, dry specimens, pore-air, sand, volume change measurement

Paper ID: GTJ12656
DOI: 10.1520/GTJ12656

ASTM International is a member of CrossRef.
Author Laudahn, A Affiliation Institute of Geotechnical and Tunnel Engineering, University of Innsbruck, Austria Author Sosna, K Affiliation Department of Engineering Geology, Faculty of Science, Charles University, Prague, Czech Republic Author Bohác, J Affiliation Department of Engineering Geology, Faculty of Science, Charles University, Prague, Czech Republic Author Laudahn A, Sosna K, Bohác J Title A Simple Method for Air Volume Change Measurement in Triaxial Tests Symposium , Committee on