Lining systems render a significant role in ensuring that waste materials are safely separated from the environment. Despite the advent of modern lining systems, compacted clay barriers or liners are regarded as one of the very significant components of lining system and are being used as a waste containment system in landfills which require insignificant infiltration. Compacted clay barriers m...

Geosynthetic clay liners (GCLs) have become a suitable substitute for compacted used prevention of leachate percolation from landfills and tailings dams into the groundwater system. The characteristics most bentonites is improved through process activation by mixing with soda ash (Na2CO3). This paper presents investigation results suitability Imerys Mine in South Africa use GCLs. Both activated...

The progression of hydration of Geosynthetic Clay liner (GCL) from underlying subsoil was studied for three GCL products under simulated landfill conditions, before and after being covered by municipal solid waste. GCL hydration is shown to be highly dependent on the GCL manufacturing techniques, the grain size distribution and initial moisture content of the subsoil. The hydration behaviour of...

The geosynthetic clay liner (GCL) overlap plays a key role in maintaining hydraulic performance of the barrier systems, e.g., bottom and cover systems. However, its influences on behavior vertical have been rarely investigated. This paper aims to address this issue using large-scale model test 3-dimensional finite element (FE) modeling. In test, GCL at width 500 mm was tested under constant hea...

In the past thirty years many mining projects in Chile and Peru have used: (i) polymeric geomembranes (ii) design-and-build cutoff trenches, plastic concrete slurry walls, grout curtain systems to control seepage at tailings storage facilities (TSFs). Geosynthetics are a viable alternative TSF dam for clay cores or impermeable materials, mainly because of their marked advantages cost, installat...

Accurate predictions of the amount and the rate of long- term deformation of reinforced soils under an applied load are important key issue in geotechnical engineering, in which the deformation of soil develops with time at a state of constant effective stress. Since geosynthetic is generally considered creep sensitive therefore, evaluation of creep behavior of geosynthetic reinforced soil (GRS...