PODCAST: George Koerner on Exposed Geomembrane Performance

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George Koerner, Director of the Geosynthetic Institute, had the honor this year of delivering the first Koerner Lecture—a series named in honor of his father Dr. Robert Koerner, who is internationally recognized as one of the godfathers of geosynthetics and who continues his work as Director Emeritus at GSI. Last year, I had the pleasure to see both Koerners at an ASCE’s GeoChicago conference and ... »

PODCAST: Pullout Anchor Testing in Erosion and Sediment Control

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Jay Sprague of the South Carolina-based Denver Down Research Facility took on a private client’s pullout anchor testing questions with erosion and sediment control systems and components. The results began to yield revealing data on anchor pullout performance, and in a way that has not been previously explored. Listen to “Pullout Anchor Testing in Erosion and Sediment Control” on Sprea... »

Effective Education for Erosion and Sediment Control System Adoption

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Erosion and sediment control advances have produced enormously beneficial results, in infrastructure performance and economics; yet, rates of erosion and sediment control system adoption rates have lagged behind the research supporting them. Dr. Eve Brantley, an extension specialist and associate professor with Auburn University’s Crop, Soil, and Environmental Sciences Department in the renowned C... »

PODCAST: Leap Frog Ideas for Low Impact Development

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How do we create a more water-centric infrastructure? That’s a question LimnoTech senior engineer Dr. Daniel Medina, P.E., D.WRE addresses in his work. Low impact development strategies are very important to his work. It’s trickier than just saying “use LID,” though. Inequalities between cities and countries make is harder for some infrastructure strategies to get adopted. Priorities are different... »

The Geotechnical Poetry of Mary Nodine

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Geotechnical engineering requires a lot of waiting. You wait on calls, test results, the weather. You wait on a construction activity to finish, on software to complete extremely complex models, on site assessments to be signed off on. You wait in labs and airports, on calls, in lobbies. So what to do with all that waiting? Sometimes, you let the mind wander. It may just take you to geotechnical p... »

PODCAST: Robert Bowers on Geosynthetics in Segmental Concrete Pavements

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The Interlocking Concrete Pavement Institute published its Tech Spec 22 this year. The document provides general guidelines on the use of geosynthetics within segmental concrete pavements. ICPI’s Director of Engineering Robert Bowers, P.Eng, spoke to Geosynthetica about the publication and the growing role of interlocking concrete pavement technologies, performance of these systems, sustainability... »

PODCAST: Craig Benson on Sedimentation, Dams, and Watershed Health

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Geosynthetica opens its 2017 series of GeoTalk podcasts with a conversation about sedimentation, dams, and watershed health. Our guest is Craig Benson, an International Erosion Control Association Board Member and a division director for the private, non-profit Natural Resources Services in Eureka, California. NRS is a division of the Redwood Community Action Agency. There are more than 1000 commu... »

PODCAST: Coal Combustion Residuals and GCLs

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Geosynthetica’s Director, Elizabeth Peggs, interviewed Dr. Craig Benson (University of Virginia) and engineer John Allen (CETCO) about coal combustion residuals (CCRs) and new barrier system regulations governing CCR handling and storage. Both Benson and Allen will be at the Coal Ash Management Forum on July 21 and 22 in Charlotte, North Carolina. Benson is a speaker at the event. In their discuss... »