Geomembrane welding below freezing

June 1, 2023  |  Q&A: GMA Techline

Q: Can geomembrane welding be done below freezing (32 degrees Fahrenheit [0 degree Celsius])? If it can be done, is there a method or preferred procedure to assure its success?
Committee D35 on Geosynthetics meets in San Antonio, Texas

June 1, 2023  |  Update

ASTM International’s Committee D35 on Geosynthetics held its first biannual committee meetings of 2023 on January 25-27 in San Antonio, Texas. The meetings started with a special workshop to help define what role our committee should play regarding sustainability. Big thanks to our five distinguis…
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Powering through extremes: Fuel containment in Moose Creek

June 1, 2023  |  Features

Alaska, the Arctic, and similar cold weather regions are expected to play a key role in supplying future energy needs for the world. As energy resources continue to be pursued in these extreme climates to meet the energy demands of society, protection of our natural resources is essential. Primary a…
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Hugo, Colo., wastewater treatment system improvements

June 1, 2023  |  Features

Around 1859 the town of Hugo, Colo., was developed as a cattle ranching community to supply miners with provisions and to serve as a local stagecoach stop. It was officially founded in 1870 and incorporated in 1909; this frontier community of 786 people is located off I-70 east of Denver, and 30 mil…
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Embankment reinforcement using 1750 kN/m strength geogrids

June 1, 2023  |  Features, News

In 2015, a variant road was built to relieve urban traffic in the southeastern section of federal road BR 101, more precisely in Florianopolis, which is the capital city of Santa Catarina, Brazil. With a length of 4,828 km (3,000 miles), BR-101 is a major Brazilian highway that runs the length of Br…
Updated accelerated aging test for geomembranes

June 1, 2023  |  GSI News

The accelerated aging process is based on the relationship between temperature and chemical reaction rate, in which the reaction rate increases as temperature rises. Most accelerated aging tests use higher temperatures to accelerate the aging process by representing real-time aging artificially. A g…
IGS North America update: All about Toronto

June 1, 2023  |  IGS-NA

IGS North America (IGS-NA) is deep into planning GeoAmericas 2024, the 5th Pan-American Conference on Geosynthetics: Abstracts were accepted through May 24, and the technical and education committees will send the initial presentation/paper invitations in June. Exhibit and spons…
GEOWEB Slope Protection System provides transmission line stabilization solution

June 1, 2023  |  Final Inspection

Transmission lines are integral to supplying power to homes and businesses throughout the country. Confronted with variable terrains, geohazards, and other site complications, transmission line construction projects must contend with a wide range of complexities, including the extreme challenge of t…
A new look for Geo-Congress 2023

June 1, 2023  |  Editorial

In Hollywood, Calif., a walkway of stars honors those who have achieved greatness in the areas of music, sports, film and television. And just a few blocks away, Geo-Congress 2023 remembered its stars with a similar geotechnical walk of fame on the second floor of the Los Angeles Convention Center. …