Lime-Stabilized Backfill in MSE Retaining Structures

News and Articles

By Giulia Lugli and Sachin Mandavkar – Soil can be stabilized by using a wide range of materials, such as cement, lime, and fly ash. When lime and water are mixed with a clay soil, modification of the soil properties and stabilization reactions begin. In highly alkaline environments (pH >12 for a short period of time), this can cause corrosion of steel elements in an engineered reinforcement sy... »

Mass Flux of Condensation Runoff Observed Underneath a Geomembrane in Physical Model Tests

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“Mass Flux of Condensation Runoff Observed Underneath a Geomembrane in Physical Model Tests” by M. Styba, W.A. Take, G.A. Siemens, K.G. Mumford was presented at GeoAmericas 2016 (10 – 13 April 2016, Miami). ABSTRACT: CONDENSATION RUNOFF UNDER A GEOMEMBRANE Composite liners comprising a black geomembrane (GMB) covering a geosynthetic clay liner (GCL) can reach daily maximum temperatures... »

Watch Your Language? Geosynthetics vs Traditional Materials

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By Chris Kelsey – During GeoAmericas 2016, Dr. Neil Dixon’s sustainability keynote touched upon many topics for the future of geosynthetics. While sustainability drove most of the lecture, a few of his ideas simply approached how the field positioned itself in the marketplace. He suggested, for example, moving the field away from isolating language like “versus traditional materials.” With 4... »

Geosynthetic Closure System Allows Local Government Municipality to Turn Landfill into Solar-Powered Generation Facility

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Geosynthetic Closure System Allows Local Government Municipality to Turn Landfill into Solar-Powered Generation Facility was presented at GeoAmericas 2016, Miami ABSTRACT: In 2011, the Connecticut Resources Recovery Authority, now known as the Materials Innovation and Recycling Authority (MIRA), identified alternative landfill capping systems, including an Engineered Synthetic Turf System (EST) as... »

HDPE Daily Degradation Cycle Due to Ultraviolet and Thermal Oxidation

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ABSTRACT Approved alternative final cover systems for landfills – and now coal ash ponds and piles – include geosynthetic systems along with exposed geomembrane in some cases. Exposed geosynthetic materials are susceptible to damage from environmental factors such as wind, ultraviolet (UV) radiation, and thermal oxidation. Field UV exposure and effects measurements have become available to c... »

GSI Launches Online Designing With Geosynthetics Course

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The Geosynthetic Institute (GSI) continues to push geosynthetics education and professional development in forward-thinking ways. In 2012, GSI Director Emeritus Dr. Robert Koerner acquired full publishing rights to his seminal Designing with Geosynthetics textbook and released its 6th edition with a two-volume electronic option (e.g., Amazon Kindle) available for less than $4 per volume. The Insti... »

Kerry Rowe Elected to National Academy of Engineering

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Prof. Kerry Rowe has made numerous, substantial contributions to barrier systems research, education, and regulation during his 30+ year career. The US-based National Academy of Engineering agrees. A February 8 NAE announcement named Rowe among just 22 other engineers from outside the United States who have been elected members here in 2016. It is a prestigious and well-earned achievement.  He is ... »

UPDATE: IGS Regional Conferences in 2016

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In addition to their own chapter/national events, chapters of the International Geosynthetics Society (IGS) support quadrennial regional conferences. In 2016, multiple events will take place, bringing together the Americas, Europe, and Asia for their respective gatherings. These IGS Regional Conferences offer significant opportunities for technology transfer, project development, education, and in... »