Comparing specs

April 1, 2009  |  News, Q&A: GMA Techline

GMA techline answers from Bob Koerner Subject: Comparing specs — I want to know how can I compare specification values of ASTM with ISO?? I sell products tested with ASTM methods, but some clients give me an ISO specification. I want to know which product fits their requirements. (Claudia, Mex…
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Comparing warp and fill

April 1, 2009  |  Q&A: GMA Techline

From the GMA Techline Subject: Warp and fill — What do the terms warp and fill mean with regard to tear strength of a polypropylene liner? (Michael, Alaska) Reply: You ask a fair question that has a simple and difficult answer to it. The simple one is that the polypropylene membrane you are us…
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Ageing standard

April 1, 2009  |  Features

From the GMA Techline Subject: Standard needed — I need the standard GM11. We produce geomembranes and we will do testing but I do not have the ageing standard. (Yohana, Colombia) Reply: The GRI–GM11 Test Method has now been superseded by ASTM D7238 and ours has been discontinued. Please…
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Testing seams

April 1, 2009  |  Q&A: GMA Techline

From the GMA Techline Subject: Testing — What methods are available to test seams on HDPE and EPDM to ensure quality of joins in the field that should be part of the installation quality assurance? (Masson, New Zealand) Reply: You ask an interesting question in that HDPE is a thermoplastic pol…
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ASDSO seeking award nominees

April 1, 2009  |  News

The Association of State Dam Safety Officials (ASDSO) is on the lookout for nominees for two awards. June 1, 2009, is the deadline for nominations for the National Rehabilitation Project of the Year and also for the Regional Awards of Merit. The Rehabilitation award recognizes “a unique remedi…
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‘Craig’s List’ for geosynthetics

April 1, 2009  |  News

A Web site described as an “overstock.com” or “craigslist” for the geosynthetics industry has been launched. Geosyn.biz is a new resource aimed at the geosynthetics and erosion-control industries. Prepared by Alan Berry of Geosynthetics Consulting, the site offers educational…
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Professor Bhatia honored at Syracuse University

April 1, 2009  |  News

Among the five Syracuse University faculty and staff members who were recognized in February with Chancellor’s Citations for Excellence was Shobha K. Bhatia, professor of civil and environmental engineering in the L.C. Smith College of Engineering and Computer Science. Bhatia specializes in ge…
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Rep. Rahall: coal-ash dams are a ‘ticking time bomb’

April 1, 2009  |  News

The chair of the U.S. House Natural Resources Committee has called for new legislation, the result of the Tennessee Valley Authority coal-ash dam collapse in Tennessee that sent more than 1 billion gallons of toxic ash pouring over homes, fields, and streams. Rep. Nick J. Rahall (D-W.V.) said coal-a…
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New software from Strata and Profile

April 1, 2009  |  News

Strata Systems Inc. has announced an upgrade to its advanced interactive computer software program designed to assist engineers with the design and analysis of geogrid-reinforced steep slopes. Earthen slopes up to 70° from horizontal can be safely designed in accordance with methodologies accept…
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Giroud elected to National Academy of Engineering

April 1, 2009  |  News

Jean-Pierre Giroud has been elected to the National Academy of Engineering (NAE), one of the highest professional distinctions given to an engineer. His election citation reads: “For pioneering research in geosynthetics engineering and its practical application in civil/geotechnical engineerin…
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