Protecting EPS geofoam block with EIA geomembranes

July 10, 2024  |  Features

EPS geofoam has emerged as a popular material in construction projects due to its lightweight and versatile nature. Used for various applications in civil engineering, this expanded polystyrene foam offers excellent insulating and structural properties. However, when exposed to hydrocarbons such as …
New chapter for geosynthetics

July 1, 2024  |  Editorial

With this issue, Geosynthetics magazine begins a new journey. The Geosynthetics staff has spent the last year talking to our readers to find out what they like about the magazine and how we can improve. Working with the editorial advisory board, industry leaders and knowledge experts, the Geosynthet…
GCL shear strength concerns

July 1, 2024  |  Q&A: GMA Techline

Q: We are worried about the midplane shear strength of our GCL in a seismically active zone of our landfill. The GCL is a single component of a double composite liner system. It is backing up the primary geomembrane in the upper composite liner system. Should we be concerned?
Direct shear machine testing

July 1, 2024  |  Q&A: GMA Techline

Q: We just bought a direct shear machine and want to start ASTM D5321 testing. The pneumatic piston applying the vertical loads for normal pressure has a range from a low of 1,124 pounds to a high of 20,000 pounds. Can we use this direct shear box for landfill cover testing?
Avoid geotextile damage from oil spill cleanup

July 1, 2024  |  Q&A: GMA Techline

Q: We are a riverfront landowner with a significant 25-foot (7.6 m) riprap slope protecting our property from erosion and scour. There is a woven monofilament geotextile filter under the riprap to stop the embankment soil from piping into the river. This system has worked well for the past 10 years,…
Liner system selection for leakage and performance

July 1, 2024  |  Q&A: GMA Techline

Q: We recently relined an aeration pond at a POTW with a 45 mil GRI GM-30 barrier. It was successfully lined for 30 years with a 45 mil CSPE (Hypalon®) liner that was, unfortunately, punctured and torn beyond repair by a fallen tree from outside the fence line. The relined surface impoundment curre…
Navigating landfill leachate requirements with geosynthetics

July 1, 2024  |  Features

How vital is landfill leachate management? Recent guidance from the U.S. Environmental Protection Agency (EPA) on the disposal of PFAS shows that leachate management is one of the core functionalities of a modern landfill—and perhaps one of its biggest selling points moving forward.
Geotechnical Frontiers short course preview

July 1, 2024  |  Events, Geotechnical Frontiers Watch, News

Geotechnical Frontiers will offer a variety of short courses on Sunday, March 2, 2025. These in-depth courses feature detailed instruction in a small group setting. All courses provide four to eight PDH credits and require a separate registration. Don’t see what you are hoping for? Check out the w…
GMA 2024 second-quarter highlights

July 1, 2024  |  GMA News

The Geosynthetic Materials Association (GMA) has been actively engaged in advancing the geosynthetics industry during the second quarter of this year. Let’s take a closer look at some key updates.
ECTC members ‘cover’ geosynthetic applications with TRMs

July 1, 2024  |  ECTC News

The Erosion Control Technology Council (ECTC) is a leading industry organization home to top manufacturers of erosion and sediment control products, component suppliers, material distributors and test laboratories. Several members of ECTC either manufacture, distribute, test, provide components for …