New sustainability group founded

February 4, 2011  |  News

Engineering, public works groups developing the Institute for Sustainable Infrastructure (ISI). A new, independent, nonprofit organization designed to develop and administer a sustainability rating system for North American infrastructure-the Institute for Sustainable Infrastructure (ISI)-was offici…
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Liner comparisons?

February 1, 2011  |  News

Editor’s Note: A few more online queries arrived regarding liner materials in the article “Background and most recent GRI standards.” Comment From: Nando Posted: Oct. 10, 2010 Liner comparison Dear sir/madam: Which one is the most-effective liner (including cost, installation, and …
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Here is more information for two previous questions

February 1, 2011  |  News

To the editor: There are two GMA Techline responses in the October/November issue of Geosynthetics where additional information may be useful. Jorge in Mexico asked about Hypalon geomembranes. While Hypalon (CSPE) is no longer manufactured in the U.S., CSPE resin is available from Japan. Burke [I…
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Missing information?

February 1, 2011  |  News

Editor’s Note: In a comment regarding “Tensar grid wins IGS award,” a reader asked a follow-up question regarding specifications for this particular geogrid. Inquiry From: Jorge Posted: Sept. 17, 2010 Congratulations to Tensar for the award [for TriAx geogrid], but what I would lik…
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Biogas geomembrane?

February 1, 2011  |  News

Editor’s Note: This question came from a reader in Thailand after he read the “Floating geomembrane cover improves biogas collection, heat retention, and odor control” article. The response is provided by Dr. Robert Koerner of GSI and the GMA Techline. Inquiry From: Kraivich RE: Re…
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Questions and answers RE: “Backfill depleted open-pit mines…”

February 1, 2011  |  News

Editor’s Note: A variety of comments and questions arrived following the April/May 2010 publication of Allan Breitenbach’s article, “Backfill depleted open-pit mines with lined landfills, tailings, and heap leach pads.” Comments From: Ana Posted: May 17, 2010 Re: Excellent ar…
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MSEW drainage?

February 1, 2011  |  News

Editor’s Note: From the Geosynthetics article: “Pipeless drainage system” (April/May 2008) GMA Techline question From: Carlos RE: Drainage What is the most used design method for drainage systems in MSEW with geosynthetics? Or what can I do for designing a system for drainage in th…
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See the new Greenpoint Stadium

February 1, 2011  |  News

Editor’s Note: South African reader, Peter Davies, caught us using an old photo for the article “Geogrids remedy site soils at World Cup stadium in South Africa.” To the editor: The story is great, but the picture shown of the Green Point Stadium is, in fact, the old one that was d…
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EuroGeo4 Proceedings?

February 1, 2011  |  News

Editor’s Note: A reader of “Geosynthetics: A key toward sustainability” asks a question about EuroGeo4. Question Hello, I work for a federal library in Denver, Colo., and am trying to obtain a copy of a paper presented at the European Geosynthetics Conference (EuroGeo4) in Edinburg…
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Infrastructure news

February 1, 2011  |  News

In 2010, the American Recovery and Reinvestment Act (“stimulus package”) allotted about $72 billion to repair deteriorating infrastructure—and to initiate new projects—in the U.S. Pothole-filled roads, crumbling bridges, leaking dams, growing energy demands, and more garbage …
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