Questions and answers from the GMA Techline

Wall connections? Friction values? Anchor trenches?
—the Techline answers all

GMA techline answers from Bob Koerner

The Geosynthetic Materials Association (GMA) offers the GMA Techline, a resource for technical questions about geosynthetics. E-mail: gmatechline@ifai.com for fast, free, direct answers to your technical questions. GMA serves as the central resource for information regarding geosynthetics and provides a forum for consistent and accurate information to increase the acceptance, and to promote the correct use, of geosynthetics.

Here are the latest round of topics covered in the GMA Techline:

• MSE wall connection
• Peak friction values for textured HDPE
• Polypropylene vs. polyester
• High-temp resilient liner
• Question about AOS
• GCL and HDPE questions
• MSW landfill cap anchor trench design

Robert M. Koerner, Ph.D., P.E., NAE; E-mail: Robert.Koerner@coe.drexel.edu.