Petrochemical feature image, heavy equipment being hauled over soft soils

Petrochemical Site Requires Unconventional Road Design on Soft Soils

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Geosynthetics are used frequently to support roads that are built specifically for temporary or limited exposure to very heavy loads. This petrochemical installation project, first presented at GeoAmericas 2016...

Environmental Connection Offer: Win a Geo-U Course

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The International Erosion Control Association’s (IECA) annual Environmental Connection conference will gather February 16 – 19 in San Antonio, Texas. Geosynthetica will be in the international exhibit hall in...

Live and On-Demand Professional Development

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As the calendar year winds down, professional development opportunities such as engineering webinars are utilized more. For some, these sessions provide needed PDHs. For others, it is...

On-Demand: A Trilogy of Giroud and Han Reinforcement Presentations

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The geotechnical engineering professional development website Geo-U (www.geo-u.com) has added two presentations from Drs. JP Giroud and Jie Han to its roster of high-quality, on-demand education. A third presentation...
Layfield Now Distribuing EGrids in US

Layfield Awarded U.S. Distribution Rights for E'GRID Biaxial Geogrids

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SAN DIEGO -- Layfield Construction Products, a business unit of Layfield Group Ltd., has been awarded the rights to distribute E'GRID® Biaxial Geogrids in the United States, reinforcing the...

The Road Ahead: Transportation Engineering

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The GeoAmericas 2016 transportation engineering track will hold paper presentation sessions on April 11 and 12 at the Loews Miami Beach Hotel on South Beach. These sessions will present...

Registration Deadline for ECSMGE Reinforcement Workshop – August 31

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The registration deadline for a seat in the International Geosynthetics Society’s (IGS) reinforcement workshop at the 16th European Conference on Soil Mechanics and Geotechnical Engineering (XVI ECSMGE)...

IGS Announces Reinforcement Workshop at XVI ECSMGE

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The International Geosynthetics Society (IGS) has announced a second important workshop to be held in Edinburgh alongside the 16th European Conference on Soil Mechanics and Geotechnical Engineering (XVI ECSMGE)....
Global Synthetics

New Project Stories from Australia via Global Synthetics

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Australia-based Global Synthetics has released its latest edition of GeoNews, a regular publication that highlights geosynthetic projects and affiliated engineering and construction issues within the company’s markets. The October...

Australia Seminars: Geosynthetics in Paved and Unpaved Roads

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From November 29 through December 6, Global Synthetics is sponsoring a multi-city seminar series in Australia on "Geosynthetics in Paved and Unpaved Roads." Dr. Steve Perkins, P.E. (Montana State...
Keyline Builders Merchants

Keyline Expands Geotechnical Expertise in UK

Keyline Builders Merchants, a large, United Kingdom-based supplier of civils, heavy building materials and drainage products, has announced the establishment of a new geotechnics  team. The enhanced focus on...

Geosynthetics 2009: First Report

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It’s Tuesday and attendees and exhibitors are arriving in Salt Lake City, Utah for the biennial Geosynthetics conference. Geosynthetics 2009, managed by the Roseville, Minnesota-based Industrial Fabrics Association International (IFAI), is being held under the theme “Hydraulic and Environmental Engineering,” two subjects key to Western states like Utah. Geosynthetica is a cooperating organization for this year’s event. We’re proud to be part of this seminal gathering for North America’s geosynthetics practice. Reports from the conference will be published daily (Wednesday – Friday, February 25-27) and a wrap-up will be published next week.

Update: ASTM D35

ASTM's Committee D35 on Geosynthetics will be meeting June 26 in Denver. "Geosynthetics in Roadways and Pavements" will be the focus of Subcommittee 01 on Mechanical Properties that day. Regular Task Group meetings on properties frequently used to characterize geogrids and geotextiles used in roads and pavements will be sandwiched around an hour long update by Steve Perkins on the encouraging developments and correlations of index, bench-scale, and full-scale separation/stabilization test methods. Learn more here.;

Polish Experiences with Geogrids in Soil Structures

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The International Geosynthetics Society runs a series of high-level workshops that are organized by the IGS Technical Committees. Two of the major TCs are TC – Soil Reinforcement and...
Fouled Ballast feature image

Permanent Deformation and Stiffness of Fouled Ballast

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Fouled ballast results in the degradation of mechanical properties of ballast and railway track instability. Seasonal dry-wet cycles increase the severity of the situation. In this latest addition to...

Tech Note: Are you testing the reinforcement or the polymer?

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geosynthetica's Tech Note series publishes concise questions and observations from the practice. The latest, "Are you testing the reinforcement or the polymer?" comes from frequent contributor Ian Peggs of I-CORP INTERNATIONAL. His question is important, for the durability and degradation of the polymer is just as important to a material's service life suitability as its reinforcement component.

Tech Note: Prevention of Failure Is Possible

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Periodic in-service measurements--including high pressure oxidative induction time, carbonyl index (FTIR), and stress cracking resistance--should provide a few years advance warning of exposed high-density polyethylene (HDPE) and polypropylene (PP) liner end-of-life (EOL), thereby preventing unexpected very expensive catastrophic liner failures.

Tech Note: More Than Light Nonwoven Geotextiles Are Needed

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Whales (bubbles above the water level) in a lined wastewater pond are usually caused by leaking water that cannot be removed, which in turn generates methane that also cannot be removed. Minimize leakage through the liner (there will inevitably be some), provide a functioning leakage removal (monitoring) system, and a functioning gas venting system. A nonwoven geotextile alone under the geomembrane is not sufficient to do this.

Tech Note: When Double Liner Leak Surveys Cannot Be Performed

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Liner designers and regulators should note that it is NOT possible to perform a geoelectric integrity or leak location survey on a double geomembrane lining system when there is only a geocomposite in the leakage detection system (LDS) between the two geomembranes unless the LDS is backfilled with water. This can be costly, time-consuming, and even damaging to the liner if it is uplifted. Additional ballast on the liner may be required. And side slope liners cannot be tested. Plan ahead and use conductive geomembrane, or place a conductive geotextile or a geosynthetic clay liner (GCL) directly under the primary geomembrane.

Geotechnics Update: 7 ICEG Confirms Keynote Speakers

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The 7th International Conference on Environmental Geotechnics (7 ICEG) will be held 10-14 November 2014 in Melbourne, Australia. This event will be one of 2014’s highlights and will offer an...

Nanotechnology and Geosynthetics

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Group CTT and SAGEOS are working with various industries to foster new opportunities and materials with nanotechnology. Just as polymer modifications have expanded the roles and successes of geosynthetic materials, additional surface modifications and treatment of fibers with nano-particles may change geosynthetic performance characteristics significantly and enable new applications. Contact Eric Blonde, eblond@gcttg.com, for more information. Learn more here.;

TechnoTex Launches Online

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The Ministry of Textiles in India has launched TechnoTex (www.technotex.gov.in) to better promote the Indian technical textiles industry and to facilitate education in this ever expanding area of manufacturing. The website is divided into various zones, such as GeoTech (which includes the geosynthetic sector), BuildTech (for architectural uses) and AgroTech (for agriculture). Learn more here.;

GeoU 2020 Reinforcement Course Adds Zornberg, Tutumluer, MacMillan

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This article has been UPDATED (12 March 2020) to reflect the event’s new dates. The organizers of GeoU 2020's reinforcement course have announced the additions of Dr. Jorge Zornberg, P.E....

The Use of Geosynthetics in Mining Works

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The use of geosynthetics in mining operations grows annually, as mining companies focus on the technical and economic advantages of geosynthetics. These materials have enabled more efficient barriers, stronger...
Austin Texas skyline in the evening and bluehour, by jdross75 via Shutterstock license

GeoU 2022 Networking and Technical Tour Schedule

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GeoU 2022 co-locates five high-level, geosynthetics short courses and multiple engineering networking events, 5 – 8 April 2022 in Austin, Texas. Certification exams for each of the two-day short courses will be offered...