GRS bridges debut in N.Y.

October 15, 2010  |  News

Geosynthetically reinforced soil bridge abutments—engineering methodologies pioneered under the auspices of the Federal Highway Administration (FHWA) and prominently featured several times in Geosynthetics magazine—have been built for the first time in the Empire State. The St. Lawrence …
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Leister acquires Concord Geotech

October 13, 2010  |  News

Concord Geotechnical (USA) has announced its recent acquisition by Leister Process Technologies (Switzerland). An Oct. 12 press release stated that Concord and Leister have joined forces to bring a combination of manufacturing and innovation to the plastic welding industry. The release, written as &…
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Seaman names co-presidents

October 8, 2010  |  News

Wooster, Ohio-based Seaman Corp., maker of XR Technology geomembranes, has issued a press release announcing a new management, organization and leadership structure that includes Alex Williamson and John Crum as co-presidents. Both were promoted to executive vice president a year ago as part of a tw…
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O’Malley departs Propex

October 8, 2010  |  News

Paul O’Malley, national sales manager at Propex Geosynthetics, has resigned. In an Oct. 8 e-mail, O’Malley wrote: “I would like to take this opportunity to say goodbye and thank you. After nearly 10 years, I am leaving Propex to pursue other interests. My tenure here has been tremendously rewa…
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What about selenium and coal ash?

October 1, 2010  |  News

Editor’s Note: The article, “GMA speaks up during EPA coal ash hearing,” prompted the following comment and response. What about selenium and coal ash? From: Dennis Lemly Posted: Sept. 13, 2010 Your cited data source does not measure selenium in the leachate from the coal ash dispo…
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Is it magic? author offers more insight

October 1, 2010  |  News

Editor’s Note: The issue of dormant reinforcement due to apparent cohesion was described in “Geosynthetic reinforced walls and slopes: Is it magic?” by Prof. Dov Leshchinsky, Geosynthetics, June/July 2010. Among the many responses to this article was a relevant question about the n…
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Comment on the High Line

October 1, 2010  |  News

Editor’s Note: This article from August/September 2010 Geosynthetics prompted a reader’s comment about green roof thickness. Comment From: Al Barth Posted: Aug. 25, 2010 The article on the High Line says the green roof system is 25mm thick. This seems quite small to accomodate all the co…
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New polyurethane composite expected to extend German North Sea defenses

October 1, 2010  |  News

Editor’s Note: This article and two interesting sidebars were published in the October/November 2007 issue of Geosynthetics. Comment From: David, U.K. Posted: Aug. 18, 2010 U.K. farmers are being encouraged to partner with the Environment Agency to help maintain the sea walls that protect thei…
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Examples of paradigm confusion in the June/July 2010 issue of Geosynthetics

October 1, 2010  |  News

To the editor: “Magic” is an appropriate description where the two significant elements of very different properties are combined to produce a unique composite stronger than either element. Concrete and asphaltic concrete are two examples of “unique composites.” Unique compos…
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Green roof market growth: Opportunities and challenges

October 1, 2010  |  Features, News

By Dhani Narejo Introduction The forecast for the North American roofing market is an anticipated worth of $18 billion in 2014(1) with the most rapid gains expected in alternative roofing technologies, including green roofs. This is good news for the geosynthetics industry. While traditional roofs d…
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