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Your geo questions answered on the GMA Techline

News | June 7, 2017 | By:

Looking for answers to your geosynthetics technical questions? Contact the Geosynthetics Materials Association (GMA) Techline for thorough answers to the most detailed questions. Dr. Robert M. Koerner, who has more than 40 years of experience teaching, writing about, researching, and consulting on geosynthetics, responds to questions that range from which geosynthetic to use for a given application to ASTM standards. No question is too simple or complex. To see examples, search GMA Techline at, or e-mail your questions to

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