Achieving zero leaks on a budget with geomembranes

June 1, 2017  |  Containment, Feature, Separation

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…
Wick drains in action at port project

June 24, 2011  |  Drainage Materials, News, Separation

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 t…
A young engineer, molasses, and failed sand drains

October 7, 2009  |  Feature, Separation

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 al…
Geosynthetics revive Irish bog

June 1, 2009  |  Environmental, Feature, Geogrids, Geotextiles, Separation

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

February 1, 2009  |  Feature, Geomembranes, Separation

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,” sai…
Sheet-drain system is the correct call for Louisiana wood plant

June 1, 2007  |  Drainage Materials, Feature, Separation

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 manufac…
Massive mining evaporation ponds constructed in Chilean desert

February 1, 2007  |  Feature, Geomembranes, Separation

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 i…
Geotextiles in unpaved roads: A 35-year case history

January 1, 1970  |  Feature, Geotextiles, Separation, Testing & Materials, Transportation

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 fabr…