Geosynthetics 2023 wrap-up

February 1, 2023  |  Events

We hope you are perusing this issue of Geosynthetics magazine while attending the Geosynthetics Conference 2023 in Kansas City, Mo. If you are not attending, hopefully you will join us in 2025 for the 4th Geotechnical Frontiers, co-organized with the American Society of Civil Engineers’ (ASCE) Geo…
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GMA’s federal lobby efforts uncover new interlayer opportunity

February 1, 2023  |  GMA News

The Geosynthetic Materials Association (GMA) recently made progress regarding the use of asphalt interlayers on airfield pavement projects funded by the Federal Aviation Administration (FAA). The use of interlayers has been severely restricted for these projects for approximately seven years, based …
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Erosion control history and evolution

February 1, 2023  |  ECTC News

I'm always excited at the opportunity to write this column in Geosynthetics magazine on behalf of the industry, but this issue’s focus on erosion control is extra special because “it’s in our name”: Erosion Control Technology Council (ECTC). ECTC is a leading industry organization whose memb…
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Connection strength of geosynthetics anchored in concrete

February 1, 2023  |  GSI News

Nearly all geomembrane installations are fixed at the perimeter of the containment by burying the liner in an anchor trench or by attaching it to concrete (i.e., a collar wall, foundation, ring wall, manhole, vault, etc.). The standard approach for connecting the geomembrane liner to concrete is to …
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IGS North America: New board of directors, big agenda

February 1, 2023  |  IGS-NA

As this issue of Geosynthetics is released, IGS North America (IGS-NA) will be announcing its new board of directors. Elections took place in January 2023. The official passing of the gavel takes place at the in-person IGS-NA chapter meeting at Geosynthetics Conference in Kansas City, Mo. (February …
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Geogrids provide answer to access issues at Scottish wind farm

February 1, 2023  |  Case Studies

Wrekin Products Ltd. recently provided the perfect solution for one of Scotland’s major sustainability initiatives after being selected over two other manufacturers to create an economical access road at a new wind farm. The brand-new wind farm has been constructed in North Lanarkshire, Scotland, …
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The final IFAI Expo and my first Lobby Day

February 1, 2023  |  Editorial

October and November 2022 turned out to be memorable months as I had the chance to experience our final IFAI Expo in Charlotte, N.C., and my first—but our final—Lobby Day in Washington, D.C. You’ll find more about Lobby Day in the Update section and GMA column.
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Landfill Gas Emissions Modeling

February 1, 2023  |  Q&A: GMA Techline

Q: I’m writing to see if you are aware of any research on landfill gas (LFG) emissions modeling through various geomembranes, particularly for temporary covers? 
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Overlap seam specifications for geotextile separators

February 1, 2023  |  Q&A: GMA Techline

Q:What is the typical overlap for a geotextile used as a separator in a highway project?
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Transitioning from 30 MIL PVC geomembrane to 60 MIL HDPE

February 1, 2023  |  Q&A: GMA Techline

Q:I have a client that operates a Subtitle C landfill that utilizes a double-liner system of 30 mil (0.76mm) PVC geomembrane for the base liner. They are wanting to evaluate the possibility to transition from 30 mil (0.76 mm) PVC to 60 mil (1.52 mm) high-density polyethylene (HDPE) geomembrane for t…
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