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Your geo technical questions answered on the GMA Techline

News | March 1, 2018 | By:

Looking for answers to your geosynthetics technical questions? Contact the Geosynthetics Materials Association (GMA) Techline for thorough answers to the most detailed questions. Everything from measuring puncture resistance to the chemical effects of fracking flowback on HDPE geomembranes has been addressed by the GMA Techline. Dr. Robert M. Koerner and Dr. George Koerner of the Geosynthetic Institute monitor the GMA Techline and answer your questions.

Email your technical questions to

To see examples of questions, visit

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