Avoiding geomembrane whales and hippos in surface impoundments

April 25th, 2016

The incidence of geomembrane whales/hippos in surface impoundments containing various types of liquids is, unfortunately, not uncommon. See, for example, GSI White Paper #30, which discusses corrective actions after they occur. This article, however, addresses the situation before it occurs. Clearly, the presence of a geomembrane creates anomalies in the underlying subgrade that can cause […]

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Comparison testing of geosynthetic drainage products

February 1st, 2016

Unlike ASTM D6364 “Standard Test Method for Determining Short-Term Compression Behavior of Geosynthetics,” ASTM D1621 “Standard Test Method for Compressive Properties of Rigid Cellular Plastics” is a testing standard designed to measure the compressive properties of rigid cellular plastics (i.e., foam), not geocomposite drainage products. Unfortunately, the geosynthetic community has been saddled with this test […]

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The 2nd International GSI–Asia Geosynthetics Conference

October 1st, 2015

Some of you know that the Geosynthetic Institute (GSI) and Inha University, Incheon, Korea (Rep.), have had an association for more than 20 years. In June, we advanced this relationship during the 2nd International GSI–Asia Geosynthetic Conference. The conference chairman was Prof. Han-Yong Jeon of Inha University, the conference secretary was Dr. Jungjo Yuu of […]

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