Advances in Geosynthetic Clay Liner Technology: 2nd Symposium

Mackey RE

This book represents the work of several authors at the second Symposium on the Advances in Geosynthetic Clay Liner Technology held in June of 2003. The symposium’s theme was the current state of technology for geosysnthetic clay liners (GCLs).

The topics for the symposium generally fell into the following categories:

• ability of the current ASTM standards to assess GCLs
• needed improvement to GCL standards
• compatibility and longevity testing of GCLs
• new testing methods to advance the understanding of GCLs and their components.

The papers from the symposium included in this STP present various viewpoints and approaches to the use, design, and testing of GCLs. Examples of specific topics addressed by papers in this collection include:

• quality requirements for bentonite
• testing permeability
• effects of thermal gradients
• effect of freeze-thaw on the permeation
• oxygen diffusion
• sodium bentonite testing
• compatibility testing protocol for bentonite-based barrier systems
• hydraulic performance
• landfill leachate
• landfill caps
• on-site acceptance testing for GCLs
• GCL shear strength

These papers provide useful data for engineers and scientists working in civil engineering, environmental remediation, and construction.