9090 testing on LLDPE and HDPE

February 1st, 2014

From the GMA Techline 9090 testing on LLDPE and HDPE I would like to know if the 9090 testing was done strictly with 40-mil liners or was it done to multiple thickness liners, HDPE or LLDPE? The Pennsylvania Department of Environmental Protection (Pa.DEP) is requiring I produce it with the chemical compatibility chart to get […]

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More silt fence

February 1st, 2014

From the GMA Techline RE: More silt fence Also, I have another question regarding geo properties and their specifications. Permittivity is an indicator of how well water can flow through the fabric. AOS is an indicator of the soil particle size held back by the fabric. The permittivity specification is a minimum value while AOS […]

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Silt fence

February 1st, 2014

GMA techline answers from Bob Koerner RE: Silt fence I have read M288 and understand the different levels of material specifications for highway applications. Is there another category that can be sold to the public that does not have to meet the specifications for highway applications? For example, a home gardening category that can be […]

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Apparent opening size (ASTM D4751) for geotextiles

February 1st, 2014

From the GMA Techline RE: Apparent opening size (ASTM D4751) for geotextiles Our specification calls for a geotextile with an AOS of #50 U.S. sieve (0.3mm). I understand that unlike the rest of the technical property values, AOS is specified by the maximum value (i.e., MaxARV not MARV). Please advise. Does it mean that I […]

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New GMA leadership reviews 2013, looks ahead to 2014

February 1st, 2014

By Lucie Passus During quarter 4 of 2013, GMA’s parent organization, the Industrial Fabrics Association International (IFAI), underwent some reorganizational changes and Andrew Aho, formerly GMA’s managing director and a regular contributor to this column, was named IFAI’s director of membership and divisions. As a result, I now have the pleasure of managing GMA and […]

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Your thoughts and comments appreciated

February 1st, 2014

Dear Boyd and GMA members, The recent letter you sent from the GMA was extremely reassuring that the efforts made by Bob Groh were appreciated. The family, friends, and employees of Geo-Synthetics Inc. will store your thoughts and comments away as an endearing memory of our friend. Of course we are just beginning to feel […]

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Geo15 Watch

February 1st, 2014

If you liked Geosynthetics 2013 in Long Beach, you will love Geosynthetics 2015 in Portland, Feb. 15-18, 2015, co-locating with the International Erosion Control Association’s Environmental Connection, EC-’15 Who should attend? You and a couple thousand other attendees, exhibitors, speakers, instructors, organizers, presenters, and sponsors. Who is the organizer? Geosynthetics 2015 is organized by the […]

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Geotextile tube application on containment breakwater

February 1st, 2014

This project, submitted by ACE Geosynthetics, won an Award of Excellence in the 2013 International Achievement Awards(IAA) / Geosynthetics presented by the Industrial Fabrics Association International. Each project in its own special way, exhibits outstanding innovation, technical skill and design excellence. Submissions of geosynthetics projects for the 2014 International Achievement Awards are being accepted now. […]

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Embraport container and bulk fuel terminal

February 1st, 2014

This project, submitted by TenCate Geosynthetics, won an Award of Excellence in the 2013 International Achievement Awards(IAA) / Geosynthetics presented by the Industrial Fabrics Association International. Each project in its own special way, exhibits outstanding innovation, technical skill and design excellence. Submissions of geosynthetics projects for the 2014 International Achievement Awards are being accepted now. […]

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Closing the Crazy Horse Landfill

February 1st, 2014

First large-scale landfill closure in California to use artificial turf closure system By Christopher M. Richgels 1.0 Introduction The Crazy Horse Landfill (CHLF) is located on a 160-acre parcel west of, and adjacent to, Crazy Horse Canyon Road about nine miles north of the city of Salinas in northern Monterey County, Calif. The landfill, owned […]

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