Journal Published Online: 01 March 2003
Volume 26, Issue 1

Shear and Interface Strength of Clay at Very Low Effective Stress



Thin-specimen direct shear (TSDS) tests were conducted to measure the shearing strength of kaolinite, and interface strengths between kaolinite and acrylic plastic and anodized aluminum, at normal effective stresses from 1 to 2400 Pa (0.02 to 50 lb/ft2). At the lowest effective normal stresses, curved strength envelopes fitted through the data exhibited no cohesion and high secant friction angles. Accurate information on the behavior of soil in this low-pressure range is needed to properly interpret the behavior of prototype foundations in laboratory-scale model tests.

Author Information

Pedersen, RC
The University of Texas at Austin, Austin, TX
Olson, RE
The University of Texas at Austin, Austin, TX
Rauch, AF
The University of Texas at Austin, Austin, Texas
Pages: 8
Price: $25.00
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Stock #: GTJ11104J
ISSN: 0149-6115
DOI: 10.1520/GTJ11104J