Provides insight, guidance, and confidence in proper applications of geosynthetic clay liners (GCLs) in containment systems for liquid, solid, and hazardous waste containment systems. Summarizes the types of products, special test procedures developed over the last several years, and results of studies of hydraulic, chemical compatibility and stability issues.

The text (18 peer-reviewed papers) progresses from special testing procedures, shear strength and creep testing results, hydraulic conductivity testing, chemical compatibility issues, and specification suggestions for GCL applications. The paper Effect of Swell Pressure on GCL Cover Stability indicates greater swell pressure than typical overburden loading provides, which may compromise slope stability. The papers on shear strength and long term creep also provide important insight into slope stability issues.