ISSN: 1945-7545
CODEN: GTJODJ
Published Online: 21 May 2007
Page Count: 4

A New Automatic Device for Measuring Large Volume Changes

Fair, Peter
Geotechnical Engineer, Mott MacDonald Limited,

Anderson, William F.
Professor, University of Sheffield,

(Received 8 September 2006; accepted 30 March 2007)

Abstract

The design and construction of a new automatic volume change unit, which is capable of measuring large volume changes without the need for reversing flow direction, is described. It works on the principle of a floating magnet at an air-water interface activating a magnetorestrictive sensor. Its performance is assessed against the criteria listed by Lade (1988) as desirable for any automatic volume change measuring device, and is shown to satisfy these criteria.

Keywords:
volume change measurement, triaxial test

Paper ID: GTJ100781
DOI: 10.1520/GTJ100781
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