June 2009 Issue

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  Geosynthetics-2009 conference serves as great introduction to geosynthetics

  The Geosynthetics-2009 conference in Salt Lake City was my introduction to the geosynthetics industry.

• Silver lining for AEL as staff numbers double

  The increase in employees comes at a time when many businesses are laying off workers as the worldwide economic downturn continues.

• Propex sells all assets as going concern

  Propex Inc. announced in April that it obtained, by Court Order, approval for the sale of substantially all of its assets as a going concern to an affiliate of Wayzata (Minn.) Investment Partners.

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  Mattex enters U.S. market

  A fabric producer with plants in Dubai UAE, and in Jeddah, Saudi Arabia, Mattex has produced carpet backing and industrial wovens for 10 years.

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  Jack Kemp, friend of geosynthetics, dies

  Former congressman and vice presidential candidate, Jack Kemp, died May 2 at age 73.

• Call For Papers: TRB Annual Meeting

  The 89th sessions of the Transportation Research Board will be held Jan. 10-14, 2010, in Washington, D.C.

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  Henderson re-elected

  GMA’s managing director, Andrew Aho, announced April 20 that John Henderson was re-elected to serve a second term as chairman of the GMA Executive Council.

• GMA Lobby Day helps U.S. Congress connect with geosynthetics

  Representatives from 10 member companies of the Geosynthetic Materials Association traveled to Washington, D.C., March 16-17 to participate in another successful GMA Lobby Day.

• Recap of GRI-22 Conference in Salt Lake City

  The 22nd GRI Conference took place on Feb. 27, 2009, during the last day of a very successful Geosynthetics-2009 Conference and Trade Show.

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  Missouri students win fourth ASCE Geo-Institute wall competition

  Engineering students from the University of Missouri–Columbia (UM-C) took top honors at the 2009 ASCE/Geo-Institute event in March in Orlando.

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  Geotextiles in levees (Part 2 of 2)

  History, performance, and design of geotextiles in levees: A report from New Orleans.

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  Geosynthetics revive Irish bog

  Geosynthetics-lined ‘floating trail’ protects and displays rejuvenated blanket bog at on the slopes of Cuilcagh Mountain in County Fermanagh, Northern Ireland.

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  Fixing an exposed landfill cover

  The following photo shows a landfill cover with a gray material exposed.

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  Characterization of textured geomembranes predictive of interface properties

  Currently under development is a new application of technology for textured geomembrane sheet characterization.

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  Geosynthetics at Flurry Bog

  Piled embankment design, construction, and monitoring for the A1/N1 section of highway between Newry and Dundalk, part of a strategic transportation link between Belfast and Dublin.

• The effects of heat on Subtitle D composite liner systems

  Heat can have many detrimental effects on a Subtitle D composite liner system.

• GCLs and hydraulic equivalence

  GCLs are hydraulically equivalent to low permeability soil liner in terms of advective flow.

• Design strength for GCLs

  If the GCL is not encapsulated between two geomembranes, the slope design should/must assume that the GCL will be fully hydrated at a low normal stress.

Back to Top

• 

  Geotextiles in levees (Part 2 of 2)

  History, performance, and design of geotextiles in levees: A report from New Orleans.

• 

  Geosynthetics revive Irish bog

  Geosynthetics-lined ‘floating trail’ protects and displays rejuvenated blanket bog at on the slopes of Cuilcagh Mountain in County Fermanagh, Northern Ireland.

• 

  Geosynthetics at Flurry Bog

  Piled embankment design, construction, and monitoring for the A1/N1 section of highway between Newry and Dundalk, part of a strategic transportation link between Belfast and Dublin.

Back to Top

• The effects of heat on Subtitle D composite liner systems

  Heat can have many detrimental effects on a Subtitle D composite liner system.

• 

  The difference between strength parameters

  Discussing the differences between c and ø, and a and δ.

• Maximum slope angle for geosynthetic-lined slopes

  The slope angle should not exceed the lowest geosynthetic interface friction angle, δ, of the system.

• Geomembranes and reservoirs

  Geomembranes are frequently used to cover reservoirs, especially in California (USA) for water quality purposes.

• GCLs and hydraulic equivalence

  GCLs are hydraulically equivalent to low permeability soil liner in terms of advective flow.

• 

  Fixing an exposed landfill cover

  The following photo shows a landfill cover with a gray material exposed.

• Design strength for GCLs

  If the GCL is not encapsulated between two geomembranes, the slope design should/must assume that the GCL will be fully hydrated at a low normal stress.

Back to Top