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Subgrade enhancement geotextiles
June 1st, 2010
Editor’s Note: An August 2009 article briefly described a new California DOT (Caltrans) guide for using subgrade enhancement geotextiles. In a comment on this article, the reader poses a question, which is answered by (a) the author of the Caltrans guide and (b) Geosynthetics editor Ron Bygness. Comment: SEG Guide error? From: Wendel B. Posted: […]
Geo-Frontiers 2011 Short Course Announcements
June 1st, 2010
The Geo-Institute of ASCE, the Industrial Fabrics Association International (IFAI) and the Geosynthetic Materials Association (GMA), and the North American Geosynthetics Society (NAGS) join forces to present Geo-Frontiers 2011 at the Sheraton Dallas Hotel. The conference is conducted under the auspices of the IGS and will also feature the GRI-24 Conference on March 16. Geo-Frontiers […]
U.S. geosynthetics market is poised for a comeback in 2010-11
June 1st, 2010
By Jeffrey Rasmussen While U.S. geosynthetics manufacturers and distributors assess 2009’s lackluster performance, they can also look forward to the possibility of meaningful improvements before the end of this year. Sales in 2009 were down about 4-5%. However, a slow but steady growth is expected this year and into 2011. The decrease in sales and […]
Delays, cost, performance are key issues for reef
June 1st, 2010
A one-year delay in construction, with nearly double the initial cost estimates, and surfing conditions not meeting expectations have all been part of the experience for the first artificial surfing reef in Europe, which opened earlier this year off the south coast of England. Geosynthetics referenced this project in its October/November 2008 issue. The reef, […]
Cooley appoints business development manager
June 1st, 2010
At the Cooley Group, David Shields has been appointed business development manager for Cooley Engineered Membranes. His responsibilities will include identifying and developing new markets for that division, according to a company press release. Citing his extensive background with the aviation industry and as former director of business development for a large specialty coating and […]
Personnel update at NAG
June 1st, 2010
North American Green has named Gabe Weaver to the new position of manager of engineering and business development. In a press release this spring, the company said it “has married innovation with expertise in the erosion control industry,” given Weaver’s background as a professional engineer plus his new master of business administration (MBA) degree. It […]
Purging the geosynthetics system of dated test methods and specs
June 1st, 2010
By Bob and George Koerner In May 1998, Maryann Gorman wrote a commentary in ASTM Standardization News entitled “How Specifications Live Forever.” She began the article by explaining how standard gauge railroad track spacing in North America is 4ft-8.5in. (1.4351m). It seems that this precise dimension dates from Roman times because “the Imperial chariots were […]
Geosynthetics: The present and perspectives from Mexico
June 1st, 2010
By Andrew Aho The Mexican economy has been battered by both the worldwide financial crisis and the effects of a steep downturn in the U.S., Mexico’s largest trading partner. And if that was not enough, Mexico’s economy absorbed another blow last year with its virtual shutdown during the swine flu pandemic. A gathering of the […]
Bernard Myles was my friend
June 1st, 2010
Written Wednesday, April 28, 2010 by Pete Stevenson Bernard Myles was my friend. We met in 1980 in New Orleans at an organizing meeting for the IFAI geotextile committee where he was the only sensible voice. During the next 30 years he became my friend and he remained a sensible voice. He was a teacher, […]
MSE walls support laterally loaded drilled shafts
June 1st, 2010
A new take on sound-barrier walls. By Jie Han, Robert Parsons, Matthew Pierson, and James Brennan Introduction When residential areas are close to highways, sound barrier walls are often constructed to minimize noise from traffic on those roads. Under certain circumstances, mechanically stabilized earth (MSE) walls are used to support the sound barrier walls. Figures […]