Geosynthetic Clay Liners in Coal Combustion Residual Containment Applications

摘要

Compacted clay liners have been historically used as barrier layers in waste and liquid containment applications. Compacted clay is often selected because an adequate borrow source is located nearby; however compacted clay liners can be difficult to construct and are subject to deterioration from various factors, including differential settlement, desiccation, and freeze-thaw action1. Geosynthetic clay liners (GCLs) are sodium bentonite clay-based hydraulic barriers commonly used as alternatives to conventional compacted clay liners in waste and liquid containment applications.