FHWA proposes more flexible design standards to repair the nation’s freeways and interstates

November 27th, 2020

The Federal Highway Administration (FHWA) published a Notice of Proposed Rulemaking (NPRM) to allow state departments of transportation more flexibility with design standards to repair the nation’s freeways and interstate highways. “The FHWA proposes to provide regulatory relief to states to address the immediate repair needs of our nation’s roadways without compromising safety and efficiency,” […]

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GSI to host webinar on geosynthetics in paved and unpaved roads

November 22nd, 2020

The Geosynthetic Institute (GSI) will sponsor a webinar, “Geosynthetics used in paved and unpaved roads,” on December 2, from 11:30 a.m. to 1 p.m. EST. Geosynthetic Materials Association (GMA) member companies and their employees receive discounted rates on all GSI webinar and short course registrations. Beginning in the 1930s, geotextiles and later geogrids have been […]

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GMA hosts free webinar on geosynthetics for unpaved and paved roads

May 5th, 2020

Sponsored by Propex The Geosynthetic Materials Association (GMA) and Propex will present a webinar “Geosynthetics Used in Unpaved and Paved Roads,” May 18 from noon to 1:30 p.m. CDT. The webinar is free to GMA members and nonmembers. Beginning in the 1930s, geotextiles and then geogrids have been used in unpaved and paved roads for […]

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GEOWEB 3D system is focus of webinar

July 29th, 2019

Layfield Geosynthetics and Presto Geosystems will host a free webinar, “Basics of Road Design Using Innovative Engineered Technologies,” on Aug. 20, from 10 a.m. to 11 a.m. MDT. Roadway surfaces built over weak subgrades can degrade due to base deterioration that causes deflections, rutting and cracking in the surface layer. The GEOWEB 3D soil confinement […]

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Infrastructure funding remains uncertain

April 1st, 2019

Nearly a year has gone by since we published the June/July 2018 issue with a theme of “Geosynthetics Used in Highways and Bridges.” The editorial in that issue noted, “As of this writing, the White House and U.S. Congress are working on an infrastructure bill or bills after President Donald Trump released an infrastructure proposal […]

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Tenax presents GRAVEL LOCK, a composite for retaining gravel

March 21st, 2019

Italian company Tenax’s new product GRAVEL LOCK is a geocomposite made up of a cuspated, rolled high-density polyethylene geogrid coupled with a polypropylene nonwoven fabric. It is ideal for creating draining and stable gravel floors for pedestrian and vehicular passage, the shape in rolls and the reduced amount of gravel required for filling (less than […]

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Modeling demonstrates benefit of geogrid-reinforced aggregate base

December 21st, 2018

Improved modeling of geogrid for use with the Minnesota Department of Transportation’s pavement design software, MnPAVE Flexible, will allow pavement designers to simulate field tests of stiffness and resiliency in pavements over bases with and without geogrid. The department, known as MnDOT, is using modeling results from a recent study to develop a design input that quantifies the […]

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GMA/IGS-NA to present webinar on geosynthetic-stabilized roads

November 2nd, 2018

The Geosynthetic Materials Association (GMA) and IGS North America (IGS-NA) will sponsor a free webinar entitled “Recent Developments in Geosynthetic-Stabilized Roads: Introduction and Mechanisms,” on Dec. 4, from 1 to 2 p.m. EST. Geotextiles, geogrids and geocells have been used widely in roadway stabilization works throughout the world. In this webinar, Dr. Jie Han will […]

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The many applications for geosynthetics in the energy sector

October 1st, 2018

The opportunities for geosynthetics in energy applications are nearly endless. There are huge energy categories, such as oil, natural gas and coal, but geosynthetics also play a role in nuclear energy, hydropower, wind power and solar power, among others. Geosynthetics line storage tanks, support roads to remote sites, line tailings ponds, provide filtration, dewater coal […]

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Barry R. Christopher honored with 2018 Koerner award and lecture series

September 11th, 2018

The Geosynthetic Materials Association (GMA), led by a Koerner awardee selection task force, selected Barry R. Christopher, Ph.D., P.E., as the recipient of the 2018 Dr. Robert M. Koerner Award and Lecture Series. The award and lecture series is named for Dr. Robert M. Koerner, Ph.D., the founder and director emeritus of the Geosynthetic Institute […]

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