Peak friction values for textured HDPE

June 1, 2012  |  Q&A: GMA Techline

From the GMA Techline RE: Peak friction values for textured HDPE? I am currently in the design phase of a landfill cover system that I would like to design with rather long 3:1 slopes consisting of an HDPE liner and geocomposite drainage net atop the waste and under three feet of cover soil. I am &h…
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MSE wall connection

June 1, 2012  |  Q&A: GMA Techline

From the GMA Techline RE: MSE wall connection? When an MSE (mechanically-stabilized earth) wall is constructed using geosynthetic reinforcement, how is it connected to precast concrete facing? Are metal tabs cast in the concrete or can a geosynthetic product be cast in the precast panel? If this con…
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The roles of geomembranes in algae production at landfills

June 1, 2012  |  Products

The articles in this series encompass all types of geosynthetics and their applications viewed from the context of sustainability. Traditional solutions are compared with geosynthetic solutions from both cost and carbon footprint perspectives. (from the Geosynthetic Research Institute’s 24th confe…
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Green roofs with geosynthetic materials optimize sustainability

June 1, 2012  |  Case Studies

Texas Case Study Introduction Green or vegetated roofs have proven an effective method of reducing the energy load requirements of buildings. Another way green roofs contribute to sustainability is by reducing carbon levels in the atmosphere through carbon sequestration or the removal and storage of…
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Geomembrane curtain improves salmon habitat

June 1, 2012  |  Case Studies

At the Whiskeytown Reservoir By Bob Gee, Greg Morris, and Stanford W. Slifer Introduction In California’s Central Valley, geomembrane temperature curtains provide an example of how geosynthetic materials can help stabilize environmental conditions along water diversion systems. Located in the …
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Cross section of the Hetaoyu reinforced soil wall

June 1, 2012  |  Case Studies

A number of readers have responded with requests after seeing and reading about the 2011 International Achievement Award of Excellence winner, “Geotextile-reinforced soil retaining wall for Hetaoyu Mine coal processing plant” in the February/March issue of Geosynthetics. Most of the inqu…
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Well done, lessons learned

June 1, 2012  |  News

To the editor: With the sun shining and birds chirping, I took my April/May issue of Geosynthetics from my mailbox directly to my favorite reading chair. Intrigued by your editorial and the cover image of a massive 90.3-acre earth wound, the article “Closing the A&L Salvage Landfill: An un…
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Surprised by low numbers in ICOLD report

June 1, 2012  |  News

To the editor: I read the “2010 ICOLD Bulletin on geomembrane sealing systems for dams” article with great interest (April/May, 2012). Good article to have presented, but I was a little surprised by the low numbers of geomembrane-lined earth- and rock-fill dams listed [in] the 2010 ICOLD…
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TRI announces equipment acquisitions

June 1, 2012  |  News

Texas firm purchases former Bathurst Clarabut resources Austin, Texas-based TRI Environmental Inc. (TRI), international geotechnical, geosynthetics, and erosion-control materials services company, announced in a May 31 press release the acquisition of advanced testing equipment from the former Bathu…
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TenCate completes first NTPEP on-site audit for geosynthetic reinforcement

May 31, 2012  |  Products

TenCate Geosynthetics announced that its Miragrid XT geogrid product line has completed the first-ever evaluation by the National Transportation Product Evaluation Program (NTPEP) that incorporated an on-site audit of the manufacturing facility. The American Association of State Highway and Transpor…
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