SYMPOSIA PAPER Published: 01 January 1997

Shear Strength Testing for Geosynthetic Clay Liners


This paper provides guidelines for measuring the internal and interface shear strengths of geosynthetic clay liners (GCLs) in a direct shear test. Currently, there is significant variability between laboratories in shear testing procedures for GCLs; the major differences are related to specimen hydration and shear rate. The guidelines presented in this paper are intended to provide for consistent test results that can be interpreted without ambiguity. They are also intended to provide measured strengths that are representative of typical field conditions.

Author Information

Gilbert, RB
The University of Texas at Austin, Austin, TX
Scranton, HB
The University of Texas at Austin, Austin, TX
Daniel, DE
, Austin, TX
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Developed by Committee: D35
Pages: 121–135
DOI: 10.1520/STP11798S
ISBN-EB: 978-0-8031-5364-6
ISBN-13: 978-0-8031-2471-4