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CCR landfill final cover test pad—Part 2
October 1st, 2020
By Nina J. Balsamo, John Massey-Norton, John R. Klamut, Terry Queen,Charles F. Straley and Mark R. Lehner FIGURE 1 Test pass of loaded 45-ton (40.8-tonne) truck over 3 feet (0.9 m) of cover soil on bench An integrated drainage system (IDS) geomembrane, which provides both a low-permeability membrane and drainage space above the geomembrane, is […]
CCR landfill final cover test pad—Part 1
August 1st, 2020
By Nina J. Balsamo, John Massey-Norton, John R. Klamut, Terry Queen,Charles F. Straley and Mark R. Lehner An integrated drainage system (IDS) geomembrane, which provides both a low-permeability membrane and drainage space above the geomembrane, is being used in the final cover at a coal combustion residuals (CCR) landfill in West Virginia. Part 1 of […]
The GMA Techline
April 1st, 2020
Moderated by George R. Koerner and Y. “Grace” Hsuan Welding Rod Q: This question is in regard to the welding rod intended for welding of geomembranes (both high-density polyethylene [HDPE] and linear low-density polyethylene [LLDPE]). Are there any GRI GM13- or GM17-based requirements for welding rods or are there any white papers or specifications? I […]