1. ASTM 6243, 2009. Standard test method for determining the internal and interface shear resistance of geosynthetic clay liner by the direct shear method.
2. ASTM D6496, 1999. Standard test method for determining average bonding peel strength between the top and bottom layers of needle-punched geosynthetic clay liners.
3. EN ISO 10319. Wide width test of geotextiles.
4. Cyclic shear test of a geosynthetic clay liner for a secondary containment application;Athanassopoulos;Geosynthetic International,2010
5. Shear Strength Behavior of Geosynthetics;Bacas,2009