GSI announces GSI Fellowship awardees

September 29th, 2020

The 2020–21 Geosynthetics Institute (GSI) Fellowship proposals have been reviewed by Dr. George Koerner, Dr. Grace Hsuan and the GSI Board of Advisors (BOA). GSI is pleased to announce that the recipients of this year’s $5,000 awards have been chosen.  As in previous years, the candidate must be either pursuing a master’s or doctoral degree […]

Read More

GSI to host webinar on lifetime predictions of geosynthetics

September 17th, 2020

The Geosynthetic Institute (GSI) will sponsor a webinar, “Lifetime Predictions of Covered and Exposed Geosynthetics,” on October 14, from 11:30 a.m. to 1 p.m. EDT. Geosynthetic Materials Association (GMA) member companies and their employees receive discounted rates on all GSI webinar and short course registrations. A most frequently asked question regarding all types of geosynthetics […]

Read More

GSI to host webinar on landfill covers

September 2nd, 2020

The Geosynthetic Institute (GSI) will sponsor a webinar, “Landfill covers: Past-present-emerging,” on October 7, from 11:30 a.m. to 1 p.m. EDT. Geosynthetic Materials Association (GMA) member companies and their employees receive discounted rates on all GSI webinar and short course registrations. Participants will be able to assess past landfill cover practices and gain comparisons to […]

Read More

GSI to host webinar on geosynthetic applications used in heap leach mining

August 24th, 2020

The Geosynthetic Institute (GSI) will sponsor a webinar, “Geosynthetics applications used in heap leach mining,” on September 23, from 11:30 a.m. to 1 p.m. EDT. 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 and […]

Read More

GSI hosts geomembranes in hydraulic applications webinar

August 12th, 2020

The Geosynthetic Institute (GSI) will sponsor a webinar, “Geomembranes in hydraulic applications (dams, canals, reservoirs, tunnels, pipes),” on September 16, from 11:30 a.m. to 1 p.m. EDT. Geosynthetic Materials Association (GMA) member companies and their employees receive discounted rates on all GSI webinar and short course registrations. By 2040 it is estimated that two billion […]

Read More

GSI to host webinar on failed MSE walls

August 10th, 2020

The Geosynthetic Institute (GSI) will sponsor a webinar, “A database and analysis of 320 failed MSE walls with geosynthetic reinforcement,” on September 9, from 11:30 a.m. to 1 p.m. EDT. Geosynthetic Materials Association (GMA) member companies and their employees receive discounted rates on all GSI webinar and short course registrations. Mechanically stabilized earth walls, berms […]

Read More

Benefit/cost analysis as it relates to service life of geosynthetics

August 1st, 2020

On the surface, performing a benefit/cost (B/C) analysis is a straightforward process. However, ensuring that such an analysis is accurate and thorough is a much more nuanced task. In 2008, Bob Koerner laid out the procedure for geomembranes in Geosynthetic Research Institute (GRI) White Paper #12 “GS Selection Based on B/C Ratio.” This article expands […]

Read More

CCR landfill final cover test pad—Part 1

August 1st, 2020

By Nina J. Balsamo, John Massey-Norton, John R. Klamut, Terry Queen,Charles F. Straley and Mark R. Lehner An integrated drainage system (IDS) geomembrane, which provides both a low-permeability membrane and drainage space above the geomembrane, is being used in the final cover at a coal combustion residuals (CCR) landfill in West Virginia. Part 1 of […]

Read More

The GMA Techline

August 1st, 2020

Seaming dissimilar geomembranes Q: I kindly request your technical support in the questions below: A nonpolyethylene geomembrane was used in phase 1 of the tailings dam waterproofing system of a gold mine. For the expansion (phase 2), the use of a high-density polyethylene (HDPE) geomembrane is being evaluated. How can the HDPE geomembrane join the bituminous […]

Read More

GSI to host webinar on UV resistance of geosynthetics

June 27th, 2020

The Geosynthetic Institute (GSI) will sponsor a webinar, “Ultraviolet (UV) Resistance of Geosynthetics,” on July 8, from 11:30 a.m. to 1 p.m. EDT. Geosynthetic Materials Association (GMA) member companies and their employees receive discounted rates on all GSI webinar and short course registrations. Geosynthetics are polymeric products used to solve civil engineering challenges, typically belowground. […]

Read More