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New website offers road builders’ forum
October 24th, 2012
Geosynthetic materials included in discussion topics ibuildroads.com is a new website and mobile app forum offering online discussions covering many areas of road construction, including the use of geosynthetic materials such as geotextiles and geogrids. The site promises benefits from learning about ibuildroads.com and how it can help those in the road-building business to communicate […]
Innovative geotextile bag technology helps restore reed bed at Salhouse Broad
October 23rd, 2012
In east-central England, geotextile bags are filled with river sediment to restore eroded riverbank Reports from the U.K. describe how huge woven geotextile bags—8.5m wide with a circumference of 18.6m—are filled with dredged sediment to help restore a reed bed as it was in 1946. The bags are filled with 3,000m³ of sediment dredged from […]
Turf reinforcement mats are subject of proposed ASTM geosynthetics standard
October 18th, 2012
Next meetings Jan. 30-Feb. 1 A proposed new ASTM International standard, ASTM WK38408, “Specification for turf reinforcement mats,” will focus on mats made only with geosynthetics (no organic materials), according to an Oct. 18 press release from ASTM. ASTM WK38408 is currently under development by Subcommittee D35.05 on Geosynthetic Erosion Control, part of ASTM International […]
Leister and Premsco announce partnership
October 10th, 2012
Puerto Rico-based company to distribute Leister’s hot-air equipment lines Leister Technologies AG and Premsco Inc. announced in an Oct. 10 press release the selection of Puerto Rico–based Premsco as Leister’s sales and distribution partner in the Caribbean. The release said that Premsco will serve as master distributor of Leister’s industrial heaters and blowers. Premsco also […]
EuroGeo5 concludes in Valencia
October 5th, 2012
Technical sessions, keynoters highlight quadrennial event By Ron Bygness With more than 50 exhibitors, 38 technical and education sessions, two full-day short courses, four keynote lectures, hundreds of attendees, and a gala closing dinner, EuroGeo5 in Valencia, Spain, Sept. 16-19, was even more than a six-course fiesta. Held at the unique four-floor Centro de Eventos […]
Missing a part of GRS history
October 1st, 2012
To the editor: The article in the August 2012 magazine describing geosynthetic-reinforced soil (GRS) bridge abutments has a major element missing. The author shows an innocence of the history of this technology in that the name of Robert Barrett is absent. I designed and supervised the construction of abutments on a 140-ft tied-arch span in […]
Massive soil reinforcement at Cherry Island extends landfill’s use for decades
October 1st, 2012
Finalist for 2012 award for Outstanding Civil Engineering Achievement By Ron Bygness The challenge Cherry Island Landfill, operated by the Delaware Solid Waste Authority (DSWA), has been used for municipal solid-waste disposal since 1985. Built on an old dredge disposal site at the confluence of the Delaware and Christina rivers in Wilmington, Del., the subsurface […]
The basis for landfill closure, remediation, and redevelopment
October 1st, 2012
Reuse and recycle By Joan A. Smyth and Stacey A. Smith Introduction The Lexington County Highway 321 landfill site was recently awarded the U.S. Environmental Protection Agency’s (EPA) Region 4 Excellence in Site Reuse: Superfund Redevelopment Award. This site, located in West Columbia, S.C., contains several waste disposal areas that were active from the 1950s […]
Traditional vs. exposed geomembrane landfill covers
October 1st, 2012
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 conference, 2011) Cost and sustainability perspectives Abstract All municipal solid waste (MSW) landfills require a final […]
More accurate liner integrity surveys using electrically conductive GM
October 1st, 2012
By David Gallagher and Abigail Beck Introduction The electrical liner integrity (ELI) survey is currently the most effective and practical means of locating leaks in installed geomembranes after cover soil installation, as detailed in ASTM D7007. The technology functions along the principle that polyethylene geomembranes are electrically insulative. By applying an electrical potential across a […]