Out-of-Plane Tensile Behavior of Geosynthetic Clay Liners Available to Purchase

Presented in this paper is the out-of-plane tensile behavior of a variety of geosynthetic clay liners (GCLs). Tensile response curves indicate that GCL strength is largely dependent on the carrier material types from which the GCL is manufactured. Fiber reinforcement effects as well as orientation effects were relatively small for this type of test. The effects of hydration and seams were also assessed. The study shows that GCLs can withstand considerably greater out-of-plane deformation than compacted clay liners (CCLs). Review of the results indicates that GCLs should be considered over CCLs for use as barrier layers where differential subsidence is anticipated.