The May 2011 issue of CE News includes a Progressive Engineering column on “Advances in Barrier Geosynthetics” by Geosynthetica’s editor Chris Kelsey. The article takes a look at the direct shear results guide from ASTM Committee D35 on Geosynthetics; the important role ethylene vinyl alcohol (EVOH) can play in gas barrier performance; and the new utilization of trenchless, anchored, exposed geomembrane caps. Insights from Kuraray, American Environmental Group Ltd., Raven, TRI and CETCO are included.

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