... Thomas Telford Ltd 2017 Geosynthetics Geomembrane Seams Welds Temperature Antioxidant depletion Shear test Peel test MFI Geomembranes (GMBs) are flexible polymeric sheets mainly employed as liquid and/or vapour/gas barriers. They are designed as relatively impermeable liners...

... of GCL shear testing programs. North American practice is emphasized and discussions are focused primarily within the context of landfill bottom liner and cover systems. Conclusions and recommendations are provided with regard to GCL shear strength behavior and current GCL strength testing practice...

... the variability of GCL shear test results; (3) obtaining preliminary strength parameters prior to conducting project-specific shear tests for final design; and (4) comparing with the results of future shear tests on similar or new GCL products. (2) s = a + b σ n, s In a few cases...

..., the bentonite is at least partially protected from hydration and will have a higher average shear strength than in the fully hydrated condition. GCL shear strengths from laboratory direct shear tests are expressed in terms of total normal stress on the failure surface. Thus the nature of pore pressure...