Adding graphene to geosynthetics

June 1st, 2022

Q: I have some commercial application questions in the field of geosynthetics. We manufacture graphene powders in the most sustainable way, and it allows us to supply graphene to manufacturers much more economically. As you may have heard, graphene has wonderful material properties atomically to offer, and I am looking for opportunities to leverage its […]

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Pipe penetrations through geomembranes

June 1st, 2022

Q: Is there a recommended detail that you can provide or point me toward for pipe penetrations through geomembrane single and double liners? A: You should review American Society for Testing and Materials (ASTM) D6497 Standard Guide for Mechanical Attachment of Geomembranes to Penetrations or Structures. It is excellent, with three tried-and-true standard details that […]

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PVC geomembrane specifications for South American lithium mining

June 1st, 2022

FIGURE 1 A covered pond with a PVC geomembrane (left) that complies with Fabricated Geomembrane Institute (FGI) specifications. A second pond (right) is already filled with lithium brine. Lithium, one of the raw materials in various batteries, is the element powering the technological revolution over the past 30 years that has led to people having […]

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Aboveground storage tank liners for energy applications

June 1st, 2022

FIGURE 1 Wooden oil tank near Odessa, Texas. Photograph courtesy of the author Over the past 20 years, hydraulic fracking rules and regulations have become increasingly stringent, and oil and gas (O&G) producers have become progressively more concerned with environmental stewardship. Quality, factory-fabricated geomembrane liners for the aboveground storage tank (AST) market have become a […]

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Eric Blond nominated chairman of ASTM D35.10 Subcommittee on Geomembranes

May 12th, 2022

Photo courtesy of Eric Blond. Eric Blond has been nominated chairman of the American Society for Testing and Materials (ASTM) Subcommittee D35.10 on Geomembranes. The ASTM Subcommittee D35.10 develops standard test methods, specifications, guides and practices dealing with geomembranes. ASTM International is one of the world's largest international standards developing organizations and is considered a […]

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Your extrusion welding rod matters

May 3rd, 2022

Solmax discusses why choosing your extrusion welding rod matters, and the best ways to perform an extrusion weld on a geomembrane. Circular geomembrane extrusion weld. Photograph courtesy of Solmax Extrusion welding is a highly effective seaming method that’s primarily used for detailed patching work on polymeric geomembranes such as high-density polyethylene (HDPE) and linear low-density polyethylene (LLDPE). It also works well […]

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Landfill closure best practices

April 19th, 2022

AGRU America Inc. explores landfill closure regulations and requirements, highlighting landfill closure best practices from the perspective of a geosynthetics manufacturer. In partnership with Watershed Geosynthetics LLC, AGRU America Inc. has manufactured more than 1,500 acres (607 ha) of ClosureTurf engineered landfill closure systems. Photograph courtesy of AGRU America Inc. Landfill containment is a complicated […]

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Inspecting a six-year-old geomembrane

April 14th, 2022

Seaman Corp. describes a rare opportunity for inspecting a 6-year-old geomembrane at the Knoxville, Tenn., World’s Fair Park. By Felon Wilson, Industrial Fabrics Business Director, Seaman Corp. WFP Park and lake in Knoxville, Tenn. Photograph courtesy of Seaman Corp. The lake at the Knoxville, Tenn., 1982 World’s Fair Park was relined with the XR-5 geomembrane in […]

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Selecting a textured geomembrane

April 11th, 2022

Solmax makes the case for selecting a textured geomembrane, like the company’s FrictionFlex, based on the type of application. By Aparna Jayakumar, Technical Manager, EMEA, Solmax Textured geomembrane. Photograph courtesy of Solmax Choosing a textured geomembrane largely depends upon the type of application in which the geomembrane is being used.   The amount of interface friction […]

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Complex geosynthetic liner system for the 70 Ranch Raw Water Reservoir

April 1st, 2022

FIGURE 1 North end of reservoir showing slope panels transitioned into bottom panels and staged cover soils placement on bottom panels Irrigation water in the western United States has always been a major concern for farming and ranching, especially in drought years. Water can be both scarce and expensive, and planning for future water storage […]

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