GRI GM13

October 1, 2010  |  Products

From the GMA Techline RE: GM13 We request you to kindly send us the GRI-approved grades for manufacturing HDPE geomembrane as per GM13. (Dilip | India) Reply: The GRI GM13 specification is a template of required properties for a manufacturer to meet or exceed. If your geomembrane does indeed meet th…
Geo mat for reinforcement when needed

October 1, 2010  |  Q&A: GMA Techline

From the GMA Techline RE: Reinforcement We have a dirt area at our recycling center that large trucks drive on and, during normal conditions, the soil is stable. However, problems arise after heavy rains and it becomes difficult for the trucks to drive on. So, we are looking for a “geo mat&rdq…
Availability of Hypalon

October 1, 2010  |  Products

From the GMA Techline RE: Hypalon I am looking for a chlorosulfonated polyethylene AD-007. We used to use Hypalon but we received a notice a few months ago that chlorosulfonated resin will no longer be produced. Can you help us to find some companies that produce and sell this type of membrane? (Jor…
GG3-87

October 1, 2010  |  News, Q&A: GMA Techline

From the GMA Techline RE: GG3-87 I was wondering if guideline GG3-87 is still in use. If it is, could I get a copy? Thank you. (Jason | Kentucky) Reply: Good question and, as with many other GRI Standards, we have given the GRI method to ASTM, which now has a replacement. The replacement for &hellip…
Drainage systems in MSEW

October 1, 2010  |  Products

From the GMA Techline Question on the Geosynthetics magazine article: “Pipeless drainage system” (April 2008) Commenter: Carlos Title: 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 the…
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…
Cameron Airpark combines old and new technologies on its ‘streetways’

October 1, 2010  |  Case Studies

By Ray Myers Background Cameron Airpark Estates, about 20 miles east of Sacramento, Calif., is a unique residential community and airport. In 1950, Larry Cameron, a former champion rodeo rider and successful auto dealership entrepreneur, envisioned a place where residents could play golf, swim in a …
Life after golf: The greening of Cheviot Hills

October 1, 2010  |  Case Studies

By Chris Kelsey Historic Cheviot Hills Golf Course opened in Raleigh, N.C., in 1930. But during the early 2000s, declining economic conditions and an abundance of golf courses in the region forced some course owners to make challenging decisions about whether to continue operations. Cheviot Hills&rs…
Optimization of anchor trench design for solar evaporation ponds

October 1, 2010  |  Products

By Richard Thiel Abstract Ponds with exposed geomembranes on their sideslopes are susceptible to wind forces, which must be resisted by properly designed anchorages at the slope crest. The most common anchorage is an earth-filled anchor trench. This article describes improved methods used to optimiz…
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…