Modified Ring Shear Apparatus for Unsaturated Soils Testing
Infante Sedano, J&
Ph.D., University of Ottawa, Ottawa, Canada

Vanapalli, SK
Assistant Professor, University of Ottawa, Ottawa, Canada

Garga, VK
Professor, University of Ottawa, Ottawa, Canada

(Received 4 October 2005; accepted 25 April 2006)

Abstract

This paper presents the design details of an automated modified ring shear apparatus for the testing of unsaturated soils using the axis-translation technique. The components of this automated system are described, as well as the types of tests that it can be used for. The key cell components include a flushing system and a precise volume gage system. The paper presents typical test results including the continuous monitoring of water as the test proceeds. A methodology to correct the water content measurements for the effect of air infiltration and evaporation or condensation of water is included.

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Author Infante Sedano J&, Vanapalli SK, Garga VK Title Modified Ring Shear Apparatus for Unsaturated Soils Testing Symposium , Committee on