What temperature can a polyethylene geomembrane resist?

June 8th, 2021

By Catrin Tarnowski, senior technical manager, Solmax Polyethylene (PE) geomembranes are used by engineers and regulators around the world to line landfills, ponds, mining heap leach pads and other applications. Prolonged exposure to highly elevated temperatures can make liners weaken rapidly. Specialized high-temperature liners can help resolve both these challenges. Prolonged exposure to highly elevated […]

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AquaFuse and Owens Corning to produce lake liners

May 4th, 2021

AquaFuse by CMF Global Inc., a world leader in revolutionizing high-density polyethylene (HDPE) irrigation systems that improve golf course performance and water efficiency, announces that the company has entered into an agreement with Owens Corning, a global building and industrial materials leader, to produce liners for ponds and lakes primarily on golf courses. Based in […]

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Solmax liners help secure 10-day build of Wuhan hospital

April 1st, 2021

Workers involved in the installation of the Solmax liner for the Huoshenshan Hospital in Wuhan, China. Photograph courtesy of Solmax In late January 2020, just before the Chinese Lunar New Year, the COVID-19 pandemic broke out in large areas of Wuhan, Hubei Province, China. The city went into lockdown on Jan. 23, 2020, with the […]

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Planning a successful landfill liner installation

March 2nd, 2021

There are many regulations and requirements associated with landfill liner installations. For example, when planning the installation of a new municipal solid waste landfill (MSWLF), there are three important federal requirements that must be met: groundwater monitoring, closure and post-closure care, and financial assurance (EPA 2021). These requirements are in addition to state regulations that […]

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The GMA Techline

February 1st, 2021

Moderated by George R. Koerner BIOLOGICAL DEGRADATION OF PE AND PP Q: Can you please enlighten me on the biological degradation of polyolefin polyethylene (PE) and polypropylene (PP)? A: Within the various plant forms of biological life, i.e., bacteria, actinomycetes, fungi and algae, polymer degradation is essentially nonexistent due to high molecular weight of the common […]

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Methods to estimate pressures and strains in pond geomembrane bubbles

August 1st, 2020

By Richard Thiel, Hesham Eldesouky and Richard Brachman FIGURE 1 Bubbles in pond with 60-mil (1.5-mm) HDPE geomembrane on verge of bursting This article provides an update, validation and improved approach for predicting the shape, pressure and strains that can occur in an exposed geomembrane bubble (aka “whale”) created by gas trapped below the geomembrane […]

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Geosynthetics are at the ready

August 1st, 2019

Geosynthetics play a varied and important role in infrastructure, from liners and covers for reservoirs to landfill covers. They can be found in highway construction and in coal ash impoundments. They are part of the basic framework of public and private construction, supporting modern expectations for transportation, sanitation and reliable energy. The American Society of […]

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Geosynthetics: To protect and conserve water

April 1st, 2018

Geosynthetics are part of a flexible, cost-effective infrastructure that helps to treat, store and deliver clean water around the world. If you’ve had a glass of clean water today, you can likely thank a geosynthetic product. Geosynthetics perform behind-the-scenes work to ensure communities have access to adequate potable water and clean waterways. They also hold […]

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FGI offers pond liner leakage calculator

January 16th, 2018

The Fabricated Geomembrane Institute (FGI) Pond Liner Calculator is an Excel spreadsheet based on Darcy’s Law that produces a comparison between leakage rates for compacted soils and geosynthetic liners. The FGI calculator allows the user to input the size of the containment basin (including length, width, depth, side slope angle and freeboard); the anticipated level […]

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