Geomembranes Can Meet Challenging Demands to Protect the Environment

Posted by Alan Strecker on Aug 3, 2017 10:10:19 AM

Government agencies, utilities and industrial customers are increasingly relying on geomembranes for projects that could potentially threaten the environment. Cost-effective due to their ease of installation and proven to be reliable for decades, geomembranes have become a popular front line in protecting natural settings.

Environmental jobs are particularly sensitive because getting it wrong can be costly. Spills or failures can lead to long-term environmental damage, public health consequences, severe fines, and negative PR, among other issues.

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Impoundment Liners – Which One Is Right for Your Application?

Posted by Sue Uhler on Jul 31, 2017 11:41:25 AM

Geomembrane liners are often used in impoundments to prevent the migration of wastes out of the impoundment to the adjacent subsurface soil, groundwater or surface water. Impoundment liners are used significantly in the energy industry to contain fresh water and wastewater, drilling waste, evaporation pits, and coal ash. Geomembrane liners used in these types of applications are made from a wide range of polymeric materials and different types of constructions, so how do you choose the right one for your exact application? In order to prevent contamination of the surrounding environment, careful consideration must be given to determine the best high-performance geomembrane liner that meets the precise requirements of the impoundment.

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Why You Need a Geomembrane to Properly Contain a Spill

Posted by Felon Wilson on Jul 27, 2017 2:18:04 PM

You may be wondering why you need to worry about installing a chemical/hydrocarbon-resistant liner to catch spills. After all, if you already have a permanent above-ground tank or a portable spill unit, the chances of the geomembrane receiving a large spill are very low. Further, the spill may be cleaned up within a short period of time.

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The Vital Role of Geomembranes in Modern Infrastructure Projects

Posted by Bill Shehane on Jun 28, 2017 1:54:49 PM

The state of California recently announced a massive infrastructure spending plan. This is likely to be the start of a national trend as politicians on both sides of the aisle recognize critical infrastructure improvements are needed from coast to coast.

Increasingly, geomembranes have helped make infrastructure projects more durable and cost-effective. Geomembranes have been used in a variety of applications for decades, but within the last 20 years they have become important elements to transportation infrastructure projects.

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Geomembrane Product Properties Influence Long-Term Performance

Posted by Sue Uhler on May 31, 2017 4:59:20 PM

For a geomembrane to function properly and protect the environment from contamination, long-term stability is crucial. With a multitude of options and varieties of geomembranes available, it can be difficult to make an accurate, direct comparison. For example, when filtering by specification, geomembranes may be similar in physical attributes but have unique performance characteristics. In addition, geomembranes may be drastically different based on standards, units, sample sizes, test consistency and mode of failure. This can make performing direct comparisons between geomembrane options more difficult. However, there are two product properties that influence long-term performance on all types of geomembranes, and they are tear and coating adhesion.

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The 2017 Geotechnical Frontiers Conference

Posted by Kyle Wheeler on May 17, 2017 3:46:10 PM

Geotechnical Frontiers 2017
When: Sunday, March 12, 2017 to Wednesday, March 15, 2017
Where: Hyatt Regency Hotel in Orlando, FL

Next to the yearly IFAI Conference, the Geotechnical Frontiers Conference is the largest conference I have been to for the geomembrane market. Unlike the IFAI Conference, Geotechnical Frontiers covers all geosynthetic materials and design applications, making it very appealing for almost any type of civil engineer.

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Environmental Regulations Bring Containment to the Forefront

Posted by Bill Shehane on Apr 27, 2017 8:00:00 AM

Recent studies have demonstrated heavy metals and other toxins seep from unlined ponds into groundwater,  causing environmental damage and posing health risks. Now, dozens of companies in industries like power generation involving coal ash are scrambling to quickly and effectively place geomembrane liners in their ponds to protect groundwater. 

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Embedment Strips: an Alternative Approach for Attaching Geomembranes to Concrete

Posted by Alan Strecker on Apr 21, 2017 11:42:28 AM

Nearly all geomembrane installations are fixed at the perimeter of the containment by burying the liner in an anchor trench or by attaching it to concrete (i.e., a collar wall, foundation wall, etc.).  The standard approach for connecting the geomembrane liner to concrete is to use a batten. In this technique, concrete lags are set (i.e., drilled) into the concrete. These are placed on 6" or 12" centers at an engineer’s discretion. Neoprene or butyl tape is then placed between the liner and concrete, and a stainless steel, like 316 SS, or aluminum batten strip is placed over the liner and the lag bolts are driven through the batten, liner, and taped into the lag. The top of the detail is then sealed with a waterproof caulk (see Figure 1).

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Durable Geomembrane System Allows Cheesemaker to Reclaim Wastewater

Posted by Felon Wilson on Mar 31, 2017 5:48:35 PM

Design and industrial engineers rely on geomembranes to withstand the harshest conditions in a broad range of applications.  They must be made of durable and chemically resistant materials to be able to optimally function as pond liners, floating covers, wastewater baffles and secondary containment—or to be used in other applications that require a long-lasting and impenetrable, yet flexible barrier.

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