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GSI’s online geosynthetics textbook now available
June 16th, 2016
The Geosynthetic Institute’s online Designing with Geosynthetics course is now available. The complete distance-learning course follows exactly the 914-page Designing with Geosynthetics textbook and it is now available by using the Adobe Connect platform. Subdivided into 15 sections, each of the 1,540 slides has a brief voice-over describing it as contrasted to the relevant page […]
Brawler increases fabrication capacity
June 9th, 2016
Houston-based Brawler Industries announced in a May press release that it has increased geomembrane fabrication capacity at its Midland and Pleasanton facilities in Texas. The release stated that: Brawler’s new fabrication capacity now allows for up to 670 feet of fabrication with no butt-seams. • New multi-sealer technology is capable of producing 8,000-pound panels. Multi-sealer […]
IECA extends abstracts deadline: June 15
June 2nd, 2016
Citing requests from past Environmental Connection (EC) conference presenters, the International Erosion Control Association’s (IECA) EC-2017 event is extending its Call for Presentation abstracts to Wednesday, June 15. EC-2017 organizers recommended that prospective presenters follow the directions for submitting abstracts on the IECA’s website. IECA’s EC-2017 conference and trade show will be held Feb. 21–24 […]
GSI’s June webinar: ‘Sand drains/wick drains/sand columns’
June 1st, 2016
The topic for GSI’s monthly seminar on Wednesday, June 8 (11:30 a.m.–1 p.m. ET), is “Sand Drains-to-Wick Drains-to-Sand Columns.” Webinar overview This webinar begins with Terzaghi’s consolidation work (extended by Barron) leading directly to consolidation of saturated soils using the technique of sand drains. It then describes a case history failure resulting in a $6M […]
IGS–North America and GMA co-sponsor waste containment system design seminar
June 1st, 2016
The International Geosynthetics Society–North America chapter (IGS–North America, formerly NAGS) and the Geosynthetic Materials Association (GMA) co-sponsored a day-and-a-half seminar March 22–23 in Syracuse, N.Y., that focused on the design of waste containment systems. The seminar drew more than 100 participants, including representatives from the New York Department of Environmental Conservation (DEC), the New Jersey […]
Recycled materials reinforcement?
June 1st, 2016
Questions and answers from the GMA Techline We are soliciting information on the use of recycled materials in the reinforced zone of MSE walls. I recall you as the keeper of many case histories. Do you have any success or failure stories about such recycled content in a reinforced zone? I’m mindful of chemical attack […]
Weld or sew?
June 1st, 2016
Questions and answers from the GMA Techline We have a liner contractor who would like to wedge-weld geotextile rather than sew it. The material is simply a cushion layer below the 40-mil geomembrane and the contractor is concerned the sewn seams will affect wedge welding of the above geomembrane. Do you have a recommendation on […]
Geosynthetics: The science that makes green roofs work
June 1st, 2016
Green roofs 101–From bottom to top Introduction Most green roofs use a variety of geosynthetic materials to support healthy and sustainable installations. Geosynthetics contribute in many ways to the operational success and long-term sustainability of green roof systems. Because they are lightweight, they reduce green roofs’ structural loading on buildings and also reduce the energy […]
We’re losing the battle
June 1st, 2016
The above title is not about military, political, or social issues; it is about the knowledge base of graduating students and other new employees entering the field of geosynthetics. In both situations (i.e., graduating students and other new employees), entry level men and women have little or no idea of the plethora of available geosynthetic […]
Strength test?
June 1st, 2016
Questions and answers from the GMA Techline Something that has always puzzled me while performing the CQA for liners is the strength test for a weld using the extrusion gun. I always thought that if the weld does not pass for elongation, that has more to do with the sheet than how well the weld […]