Project helps open Pennsylvania freeway

April 1, 2009  |  Case Studies

Design/build pyrite remediation project using geosynthetics. By Archie Filshill Introduction The Pennsylvania DOT’s Interstate-99/S.R. 6220 project extends from the village of Bald Eagle to the Mount Nittany Expressway (U.S. 322) in Centre County, just west of State College. The project involv…
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Seattle Seahawks football complex features 8-layer “sandwich”

April 1, 2009  |  Case Studies

The ‘sandwich’ includes liner, grids and textiles. Compiled and edited by Ron Bygness Among the hundreds of projects judged at the national competition for the American Council of Engineering Companies (ACEC) in Washington, D.C., in April was an athletic compound in Washington state feat…
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Cohesion (or adhesion) and friction angle in direct shear tests

April 1, 2009  |  Features

A technical note regarding interpretation of cohesion (or adhesion) and friction angle in direct shear tests By Richard Thiel Introduction Direct shear testing with geosynthetics is generally performed in accordance with ASTM D5321, Standard Test Method for Determining the Coefficient of Soil to Geo…
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PGI is now FGI

February 1, 2009  |  News

Members of the PVC Geomembrane Institute (PGI) have voted to expand the range of membership to include those companies that fabricate geomembranes. The changes in membership composition necessitated a change in the name of the association: the PGI will be known as the Fabricated Geomembrane Institut…
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15-year test offers variances between EPS and XPS

February 1, 2009  |  Features

ACH Foam Technologies announced in December the completion of a 15-year test to determine water absorption characteristics of EPS (expanded polystyrene) and XPS (extruded polystyrene). The test revealed variances between the two materials in their resistance to water absorption. The test of below-gr…
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New ASTM standard for EPDM sheet material

February 1, 2009  |  News

A new ASTM standard developed by ASTM International Committee D35 on Geosynthetics fills a need for an internationally recognized standard to ensure that EPDM sheet material received by customers is consistent regardless of the manufacturer. The new standard, D7465, Specification for Ethylene Propyl…
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SE Chapter/IECA holds training days

February 1, 2009  |  News

The International Erosion Control Association’s Southeast Chapter held its first South Carolina Training and Field Days last fall. Nearly 200 attendees took part during the 2-day event in Anderson, S.C. Day 1 included classroom training and exhibits focussing on stormwater and erosion-control …
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Reinforced roads needed at wind farm

February 1, 2009  |  News

A massive wind farm project just south of Glasgow, Scotland, eventually will have 140 2.3-megawatt turbines in operation. But before the turbines could be erected, construction roads over peaty soils had to be built. “We lay a geotextile mat and geogrid reinforcements across the peat before cr…
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Seaman Corp. invests $7 million in Tennessee plant

February 1, 2009  |  News

Seaman Corp., based in Wooster, Ohio, has made a $7 million commitment for improvements at its Bristol, Tenn., manufacturing plant. About $4 million is designated for the design and installation of a state-of-the-art coating line for primer application, according to the company. The balance of aroun…
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Geosynthetics cited for best technical articles

February 1, 2009  |  News

Geosynthetics magazine received both the Gold and Silver medals for Best Technical Article at the Excellence Awards presented in Minneapolis by the Minnesota Magazine and Publications Association (MMPA). “Using geosynthetics to rehabilitate Fisher Cañon Dam and Reservoir” was judged the…
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