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Landfill GCL Test Standard Update

August 29th, 2018

ASTM Committee D35-04 have just released an updated test method. ASTM D5890-18 - Standard Test Method for Swell Index of Clay Mineral Component of Geosynthetic Clay Liners. The important feature of this updated test method is that the Swell Index of the clay mineral component of the Geosynthetic Clay Liner must be carried out on the source bentonite prior to the addition of polymers.

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