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Critical Geosynthetics Interface
October 1st, 2024
Q: I have a question regarding critical geosynthetics interface for a final cover system. The cross section from top to bottom is as follows: 18-inch cover soil Drainage geocomposite made up of a geonet thermally bonded to NPNW geotextiles on either side Double-sided textured geomembrane 500 g/m2 NPNW geotextile gas vent Soil MSW waste I […]
Soliciting all interested parties in creating a new geomat specification
April 1st, 2024
FIGURE 1 Polypropylene geomat with geotextile The Geosynthetic Institute (GSI) has a long history of creating industry-wide generic specifications for geosynthetics. At present, we have 23 promulgated and three others under development. Like all engineered materials, geosynthetics need general requirements/thresholds to incorporate into plans and specifications. GSI is currently undertaking a new effort in regards […]
Drainage Geocomposite Applications
February 1st, 2024
Q: Do you have any case history information where a geocomposite was used as an underdrain below flat-plate, upstream armoring on an embankment dam? Specifically, I am looking for any long-term performance information (good or bad) and how much of that system (if any) may have had to be replaced due to poor performance issues […]