The Geosynthetic Institute (GSI) will sponsor a webinar, “Geosynthetic Applications Used in Heap Leach Mining,” on Feb. 9, 2022, 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. The chemical extraction of precious metals from low-grade ore …

By Felon Wilson, Industrial Fabrics Business Director, Seaman Corp. Editor’s note: This is part 3 of the 3-part series, “Understanding and Assuring Proper Geomembrane Chemical Resistance.” Part 1 was published on Jan. 12, 2022, and Part 2 was published on Jan. 19. Knowing the importance of chemical resistance data, how do you know what the …

Free for Members and Non-Members Railway track bed consists of layers of ballast and subballast on subgrade soils. Ballast degradation can rapidly occur under heavy axle loadings over soft subgrade soils. Ballast excessive deformation and failure can lead to train speed reduction, track down time, and costly maintenance and repairs. Geocell stabilization of ballast reduces …

By Katie Bocskor, Manager, Marketing, Presto Geosystems Oregon State University (OSU) recently performed state-of-the-art, three-dimensional dynamic finite element modeling to analyze the reinforcing benefit of Presto Geosystems’ GEOWEB geocells in railway ballast applications. Completed in cooperation with the University of Kansas (KU), which simultaneously put in motion a testing program of geocell-reinforced ballast placed over weak …

Associated General Contractors of America (AGC) and FMI Capital Partners will host a two-part webinar on implementation and expanded market opportunities/outlook for the 2022 highway, federal and utility construction markets due to the passage of the Infrastructure Investment and Jobs Act (IIJA) on Tuesday, Jan. 25, and Thursday, Jan. 27, from 2 to 3 p.m. …

The Targeted Overlay Pavement Solutions (TOPS) Every Day Counts team of the Federal Highway Administration (FHWA) will host its first concrete overlays webinar on Monday, Jan. 24, 2022, from 1:30 to 3 p.m. EST. Participants will hear about challenges and possible solutions, how to determine value, how to get started, and what resources are available. …

Cooley Group’s executive leadership team has promoted six employees to expanded leadership roles. The promotions place particular emphasis on supporting women in leadership positions. The move increases the number of women on the Cooley senior leadership team to more than 30% and the number of women in general management to more than 40%. The Cooley …

Monoform PLUS for manhole and wet well rehabilitation applications combines HK Solutions’ Monoform with AGRU’s Ultra Grip geomembrane. AGRU America Inc. and HK Solutions Group have released Monoform PLUS, a comprehensive manhole rehabilitation product package that offers streamlined installation with minimal impact on local traffic, the companies said in a prepared statement. “Monoform PLUS joins …

By Felon Wilson, Industrial Fabrics Business Director, Seaman Corp. Editor’s note: This is part 2 of the 3-part series, “Understanding and Assuring Proper Geomembrane Chemical Resistance.” Part 1 was published on Jan. 12, 2022, and part 3 will be published on Jan. 26. It is not unusual for an engineer to be involved with a …

The E4 highway in Sweden meanders 346 miles (557 km) between Helsingborg and Stockholm. It is one of the country’s most important traffic and transport routes. Trafikverket (Swedish Transport Administration) sought to upgrade an 18.6-mile (30-km) stretch of this highway at Ljungby, 267 miles (429 km) southwest of Stockholm. This section of the highway passes …