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Monitoring moisture change?
October 1st, 2013
From the GMA Techline RE: Monitoring moisture change? There is an opportunity to monitor an application of the enhanced barrier system at a [municipal] hazardous waste site … for which an extension is currently under construction. The consultant, contractor, client, and authority will be monitoring temperature with time. We would, however, like to monitor GCL […]
Silt fence?
October 1st, 2013
From the GMA Techline RE: Silt fence? What are the test methods and specifications for silt fence? (Barry | Georgia) Reply: AASHTO M288 is what most people use for the silt fence specification. In it is a series of test method requirements and these are ASTM Standards. If you want we can send the tables […]
Mullen Burst Test?
October 1st, 2013
From the GMA Techline RE: Mullen Burst Test? I have a project that requires the Mullen Burst Test (ASTM D3786) be performed on a geotextile that is described as a needle-punched, nonwoven geosynthetic fabric suitable for reinforcement applications. I have been told by a supplier that the Mullen Burst Test is no longer recognized by […]
Carbon footprint of geosynthetics
October 1st, 2013
From the GMA Techline RE: Carbon footprint of geosynthetics One of my students is working on the topic “of influence of geosynthetics on the reduction of carbon footprint of geosynthetics in pavement construction. We are unable to get any data on the energy required for producing typical geosynthetics (geotextiles, geogrids, geocells) per square meter area. […]
Technical reference for LLDPE cover soil depth
October 1st, 2013
From the GMA Techline RE: Technical reference for LLDPE cover soil depth We are working on a project and our installation procedures are being questioned—specifically, what basis do we have for claiming that 36in. of cover soil will protect a 40 mil liner from damage. Our firm has always used 12, 24, or 36 inches […]
Support for geosynthetics in WRRDA
September 30th, 2013
GMA’s government relations program at work Editor’s note The Geosynthetic Materials Association (GMA), working with its government relations firm in Washington, D.C., has helped to generate support for specific geosynthetics language in the Water Resources Reform & Development Act (WRRDA). The bill “to provide for improvements to the rivers and harbors of the United States” […]
GMA delivers coal ash comments to EPA
September 23rd, 2013
Case histories, papers, articles underscore role of geosynthetics Editor’s note The Geosynthetic Materials Association (GMA) has commented on a proposed rule from the U.S. Environmental Protection Agency (EPA). (See document below dated August 30, 2013.) The proposed rule is entitled, Hazardous and Solid Waste Management System: Identification and Listing of Special Wastes; Disposal of Coal […]
GMA offers comments on ‘fracking’
September 19th, 2013
Calls for geosynthetic lining and stabilization applications. Editor’s note The Geosynthetic Materials Association (GMA) has commented on a revised proposed rule from the U.S. Department of Interior-Bureau of Land Management (See document below dated August 20, 2013.) The revised proposed rule is entitled, Oil and Gas: Hydraulic Fracturing on Federal and Indian Lands. The purpose […]
Geosynthetics in roadways course Oct. 23
September 12th, 2013
Instructors are Barry Christopher and Dave Suits. The Geosynthetic Materials Association (GMA) has teamed up with the North American Geosynthetics Society (NAGS) to host a series of short courses around the country. These courses provide training on the appropriate, cost-effective use of geosynthetic materials in transportation applications. The courses feature instruction from some of the […]
Low & Bonar acquires Texiplast for $25m
September 6th, 2013
Geosynthetics, new European markets cited. London-based Low & Bonar, an international performance materials group, announced in a Sept. 6 press release its acquisition of Texiplast, a Slovakian producer of high-strength geosynthetic products. The release described Texiplast, founded in 1938, as a manufacturer of geosynthetic soil reinforcement, separation, filtration, and erosion control products. The release said […]