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 ... »

Improving Drainage at Expansion Joints in Rigid Pavements

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By GSE Environmental – Repairing damaged expansion joints in rigid pavements is a costly endeavor. Not only is the cost of the repairs high, but repair projects can go on for miles and shut down vital lanes of traffic important to commuters and local commerce. The primary cause of premature damage is insufficient drainage under rigid pavements. MANAGING EXPANSION JOINTS Expansion joints are partic... »

New Geocomposite Drainage System for Roadways

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Roadway integrity can be undermined by poor drainage on the surface and in the subgrade of the road. The new GSE RoaDrain™ geocomposite drainage system has been engineered to provide high compressive strength (> 50,000 psf), a permeability greater than 10x that of drainage stone, and long-term performance under roads and at expansion joints to provide an effective capillary break that stops the... »

Video: Conductive Geomembranes and Enhanced CQA

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In November, Solmax provided the third of its high-level webinars on geomembranes with a session on “Enhancing Quality Assurance with Conductive Geomembranes.” The presentation is now available for free via the company’s YouTube channel, as are the previous two webinars. Those other sessions dealt with Blown Film vs. Flat Die Geomembranes and Geomembrane Resin and Additive Packages. ENHANCED CQA W... »

Webinar: Enhancing Quality Assurance with Conductive Geomembranes

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On November 17, the next webinar in Solmax’s series of deeper-level geosynthetics discussions continues with presentation on “Enhancing Quality Assurance with Conductive Geomembranes.” The free session will be offered at 1:00 EST. REGISTER ONLINE CONDUCTIVE GEOMEMBRANES Previous webinars in the series have looked at blown film and flat die geomembranes and at HDPE additives in manufacturing as the... »

VIDEO: Flat Die and Blown Film Geomembranes

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Solmax made public its well-received presentation on blown film geomembranes and flat die geomembranes. The July 2016 talk, led by Mathieu Cornellier, P.Eng, addresses the differences between the two plastic extrusion processes, how they influence the final high-density polyethylene (HDPE) geomembrane product, relevant standards for selecting these materials, and potential misunderstandings about ... »

13-Year Study of Exposed, Green Geomembrane Cover

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By Boyd Ramsey – In the summer of 2001, a 60- mil high-density polyethylene (HDPE) green geomembrane was installed as a cap at the Polk County Florida solid waste disposal facility (The North Central Sanitary Landfill Class 1 Disposal Area). This cap covers approximately 4 hectares (16 acres) of surface area on a mass of waste with a relatively flat top surface and benched side slopes with an angl... »

Additive Packages, Resins, and Geomembrane Performance

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How do additive packages, resins, HPOIT and OIT testing, and other components and quality control measures to geomembranes affect material durability and performance? Solmax engineer Mathieu Cornellier led a webinar on these topics earlier this month. The company has posted the presentation on its YouTube Channel. Cornellier focuses on polyethylene (PE) geomembranes, including high-density (HDPE) ... »

HDPE Geomembrane Additives – September 7 Webinar

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Solmax continues its series of deeper-level discussions on how geosynthetics are manufactured and how those decisions—equipment, raw materials, quality control, etc.—translate into successful engineering designs. On September 7, the company will host a free webinar on HDPE geomembrane additives and their link to long-term services lives. Registration links for the webinar are below. HDPE GEOMEMBRA... »

Lifetime Predictions of Geosynthetics Webinar

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Interest in the topic of lifetime predictions for geosynthetics has grown substantially as project records extend beyond 40 years. Research projects on material service life continue to be tracked. And, test methods on geosynthetic durability are enhanced each year. The  Geosynthetic Institute (GSI) makes this topic–lifetime predictions–the subject its next GSI Webinar, to be held Augu... »

A Conductive Prime Finish for Spark Testing Geomembranes

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Last month, Solmax announced a new multi-day conductive geomembrane training program. Now, the company has furthered its information offerings in the field with the release of a new Conductive Prime Finish brochure. The new electrically conductive geomembrane skin enhances the ability to use spark testing for liner integrity verification. DOWNLOAD THE CONDUCTIVE PRIME FINISH BROCHURE (PDF) Conduct... »

Solmax Unveils Conductive Geomembrane Training Program

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A new training program from international barrier system manufacturer Solmax aims to increase user understanding of conductive geomembrane. The three-day training will be held in Montreal, Quebec, Canada at Solmax’s headquarters. Conductive geomembrane are greatly improving the ability of geosynthetics installers, facility owners, and regulators to prove the integrity of the construction wor... »

Brine Ponds for Coal Seam Gas Operations

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By Fred Gassner – In the past decade, Australia has developed large coal seam gas (CSG) resources.  Golder has been closely involved in the water management part of this development, with the temporary storage of shallow groundwater that is liberated as part of the gas extraction process. The groundwater is saline and the soils generally are highly dispersive so most of the extracted water is stor... »

I-CORP Marks 25 Years of Geosynthetics Consulting

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By Ian D. Peggs – On 21 March 2016, I-CORP will celebrate 25 years of geosynthetics consulting, with particular emphasis on geomembranes, pipes, and other engineered plastic components and materials. In January 1991, I left Geosyntec/Geoservices in Florida to develop a geosynthetics division with Greg Richardson at ENSCI in High Point, North Carolina. That division, however, was shut down in March... »

GSE Environmental to Close Plant in Chile

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Having determined it can more efficiently serve its South American market through its other international manufacturing operations, geosynthetics producer GSE Environmental has announced it will close its plant in Antofagasta, Chile. The announcement follows what the company has called a “thorough evaluation of different means to optimize manufacturing productivity, market competitiveness, a... »

GSE’s Boyd Ramsey Relocates to China

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The addition of carbon black-industry veteran Mark Leigh to GSE Environmental’s leadership in the Americas has garnered a lot of headlines; but another move within GSE is also worth noting. Boyd Ramsey, Chief Engineer of GSE North America, has accepted the position of Technical Director for APAC. Ramsey’s new role involves relocation to Suzhou, China, where GSE operates a state-of-the-art manufact... »

Paul Barker Retires from Agru America

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After 50+ years in the engineering field, a career in which he witnessed and contributed to the rise of geosynthetic technologies, Paul Barker is retiring. His professional path brought him to Agru America in 1997, where he has been instrumental in the company’s growth. On 31 August 2015, he will leave his position as Senior Vice President and Officer. In a release, Agru America President Robert J... »

GSI White Paper 32 on HDPE Geomembranes

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The Geosynthetic Insitute (GSI) has accomplished a lot internationally with its generic specifications, often filling a void in or setting the stage for ASTM or ISO standardization developments in geosynthetics. One of the most significant specifications released by GSI’s Geosynthetic Research Institute is the GRI-GM13 Specification for HDPE Geomembranes. GSI White Paper 32, released early this ye... »

GSE Environmental Names Robert Preston CEO

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HOUSTON — GSE Holdings, Inc. (“GSE” or the “Company”), the leading global provider of highly engineered geosynthetic containment solutions for environmental protection and confinement applications, today announced that Robert Preston has been appointed the Company’s Chief Executive Officer and President. Mr. Preston will also join the Company’s Board of Directors as Chairma... »

Alternative Approaches to Channel Lining Systems

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By Geofabrics Australasia – Councils often turn to rock-lined or concrete channel lining systems for open channels and to regulate flow to prevent flooding and property damage. Last year Geofabrics Australasia launched the SmartDitch® Channel Lining System to provide another alternative to Australia’s engineers and local governments. SmartDitch® is a leak-free channel lining system eng... »

Report from the Berlin 2 Workshop on Exposed, HDPE Geomembranes

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By Chris Kelsey – On September 26, immediately following the 10th International Conference on Geosynthetics (10 ICG), a high-level, one-day workshop on HDPE geomembranes convened at the headquarters of BAM, Germany’s Federal Institute for Materials Research and Testing. The event brought together field luminaries who represented not only the international practice but multiple perspect... »

Geosynthetics International Names Best Paper 2013

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By Chris Kelsey – Annually, Geosynthetics International names a best paper from the journal’s previous volume. This allows the judging to take place carefully with the full year’s published volume of issues able to be considered before any decisions are made. Journal editor Richard J. Bathurst and Chairman of the Editorial Board JP Giroud have just announced the 2013 Best Paper f... »

The Benefits of Using Reflective Geomembrane

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By David Cao – Solmax Reflective Geomembrane is manufactured using the state-of-the-art tri-layered co-extrusion technology. Its consistent reflective skin layer is homogeneously produced from premium resin with pure white pigment that consists of superior U.V. stabilizers that significantly enhances the geomembrane performance properties in all critical aspects. BENEFITS OF REFLECTIVE GEOME... »

Berlin 2 – Geomembrane Workshop

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Tentative Schedule 09:00 – 10:15 Session 1 – 9 papers @ 8 mins ea. 10:15 – 10:30 Coffee Break in meeting room area 10:30 – 11:45 Session 2 – 9 papers @ 8 mins ea. 11:45 – 12:15 Session 3 – Create outline of key topics to be addressed in the afternoon 12:15 – 13:30 Lunch on site at BAM Commissary 13:30 – 15:00 Session 4 – Discussion Sessio... »

PE Liners in Unconventional Gas Industries

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By Mathieu Cornellier – Natural gas extraction from shale formations has grown exponentially in the past few years in the United States, and all signs show that this trend will continue for the foreseeable future. The United States of America have one of the largest natural gas reserves which are contained in shale formations across the country. While recent advancements in horizontal drilli... »