Federal agency is urged to study the use of geosynthetics in roads

October 14, 2011

Editor’s note: A geosynthetics breakthrough at the federal level was accomplished Oct. 13 when a letter from Congressmen John Duncan and Frank LoBiondo was sent to the Government Accountability Office (GAO) requesting a study to investigate “costs and benefits of incorporating innovative materials in pavements … such as the addition of geosynthetic materials in pavement …

GeoAmericas dates change

The May 2012 dates for GeoAmericas in Peru have changed. The revised dates for GeoAmericas 2012 are May 1-4 in Lima, Peru. The GeoAmericas conference and exhibit is organized by the Peruvian Chapter of the International Geosynthetics Society (IGS) and presented under the auspices of IGS. To register or for up-to-date information: www.geoamericas2012.com

Syntec announces new geogrid products

October 13, 2011

Biaxial and uniaxial without patent infringement, company says In an Oct. 12 press release, Baltimore-based Syntec Corp. announced its introduction of a new line of integrally formed biaxial and uniaxial geogrids: Syntec SBX biaxial geogrids—polypropylene (PP) using punched and drawn technology. Syntec UX-S and UX-W uniaxial geogrids—high-density polyethylene (HDPE). The news release from Syntec president …

American Environmental Group acquires Power Management

October 10, 2011

American Environmental Group Ltd (AEGL) of Richfield, Ohio, announced in an Oct. 10 press release that it has acquired Power Management Inc. (PMI) of Goleta, Calif. Carl Apicella, president of AEGL, said: “The merger of the PMI and AEGL teams creates a powerful force in the specialty environmental and energy services markets. Adding PMI’s southern …

Geonet composite for Red Willow Dam

October 4, 2011

The U.S. Bureau of Reclamation (BR) has awarded a $15.3 million contract to SEMA Construction Inc. for rehabilitation of the Red Willow Dam in south-central Nebraska. Problems at the dam have been a concern since discovery of a sinkhole and cracking through the dam’s embankment in 2009. SEMA, Englewood, Colo., is contracted to: excavate the …

GSE offers two more geosynthetics seminars

October 3, 2011

GSE continues its series of “Geosynthetics 4 Success” technical seminars at two more sites this fall. Oct. 13, the “4 Success“ seminar will be at the Omni Hotel in Pittsburgh. The primary topics include the latest developments in geosynthetics and the use of geosynthetics in shale-gas and coal-ash containment applications. Speakers for the Pittsburgh event …

GSI fellowship status for 2011-2012 academic year

October 1, 2011

By Bob Koerner & George R. Koerner As in the past, GSI has been awarding graduate fellowships for students performing geosynthetics research. It is a worldwide program and one in which the awards are based on student proposals. (There were nine new proposals this year.) These proposals were then reviewed by the GSI Board of …

Extrusion welds

GMA techline answers from Bob Koerner RE: Welds Are destructs typically conducted on extrusion welds? Our flexible membrane liner (FML) spec doesn’t specifically address this. It does explicitly list a destruct frequency of every 500 linear feet of seam length. Does “seam” refer to both extrusion and fusion welds, or just fusion? Should we track …

Reduced CO2 emissions and energy consumption with geosynthetic installations

From the Geosynthetics Research Institute’s 24th conference, 2011.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) Abstract In April 2010, GSE released a …

On the waterfront

A plan to rework the Don River Park near downtown Toronto uses geotextile-wrapped wick drains to remediate soil and drainage problems By Adam Regn Arvidson A new neighborhood is growing on 80 acres (32 hectares) of former industrial land near downtown Toronto. Called the West Don Lands, it will be home to 6,000 housing units, …