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Achieving zero leaks on a budget with geomembranes

June 1, 2017

For more than 30 years, the geomembrane industry has been told that “all geomembranes leak” (Giroud 1984), as if this were some foregone conclusion no matter what might happen from geomembrane manufacturing to the time it is put into service. But recently, the idea of “zero leaks” has been a hot topic at industry conferences, …

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Wick drains in action at port project

June 24, 2011

By Angelle Bergeron The largest and deepest marine installation of wick drains in the world is ongoing at the Port of Virginia. Mark Palmatier, president and owner of U.S. Wick Drain (Leland, N.C.) said he is working on a project that is the largest and deepest marine installation of wick drain in the world, and …

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A young engineer, molasses, and failed sand drains

October 7, 2009

By Bob Koerner Prior to 1959, the chemical industry used sugar cane (mainly from Cuba) for its source of the carbohydrate sucrose used to produce ethyl alcohol for the manufacture of munitions and alcohol. When Fidel Castro came to power in 1959, this nearby source was abruptly eliminated and the alternative was molasses. Of course, …

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Geosynthetics revive Irish bog

June 1, 2009

Geosynthetics-lined ‘floating trail’ protects and displays rejuvenated blanket bog at Cuilcagh By Shelby Gonzalez Introduction: Bringing a bog back to life In the late 1980s, the blanket bog on the slopes of Cuilcagh Mountain in County Fermanagh, Northern Ireland, was in bad shape. Years of overgrazing, mechanized peat harvesting, and other mistreatment had damaged the …

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Geomembrane liner and subsurface stormwater system installed at new Minnesota football stadium

February 1, 2009

By Ron Bygness and Mark Apfelbacher Developers of large urban projects — such as the new TCF Bank Stadium at the University of Minnesota — are challenged to find sustainable ways to manage stormwater without wasting precious space. “At the stadium, space is at a premium,” said Mark Apfelbacher, a sustainability consultant with RESI. To …

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Sheet-drain system is the correct call for Louisiana wood plant

June 1, 2007

With geosynthetic sheet-drain technology, a more-efficient and cost-effective system was proposed and eventually built. A new engineered-wood manufacturing facility is up and running this year, thanks in part to a comprehensive geosynthetic sheet-drain system. Martco Limited Partnership, the manufacturing arm of the Roy O. Martin Lumber Co., completed a new oriented-strand board (OSB) plant near …

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Massive mining evaporation ponds constructed in Chilean desert

February 1, 2007

The Salar de Atacama in Chile is the site of the largest PVC geomembrane installation in the world—more than 16 million m2 utilized in mining operations since 1996. By Dominic Berube,1 Patrick Diebel,2 Andre Rollin,3 and Timothy D. Stark4 The largest PVC geomembrane installation in the world is so immense that it can be seen …

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Geotextiles in unpaved roads: A 35-year case history

By William M. Hawkins Abstract This article presents current information on geotextiles installed experimentally in an unpaved road 35 years ago. In 1972, geotextiles were largely untested, and the site was set up as an accelerated field test to determine the comparative performances of several fabrics for use as a geotextile. But because the site …