Maximizing Electrical Leak Location Effectiveness with Covered Geomembranes

On by Geosynthetica
News and Articles

By Abigail Gilson-Beck and Julio Ferreira – Designers of geomembrane-lined containment facilities commonly assume two to five leaks per hectare, with each leak of the size or diameter of a few millimeters. A leak is any damage that fully penetrates a geomembrane panel or seam (e.g. hole, perforation, tear, crack or puncture). Typical leaks caused by equipment placing cover material can be orders o... »

Video: Conductive Geomembranes and Enhanced CQA

On by Geosynthetica
News and Articles

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

On by Geosynthetica
News and Articles

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... »

A Conductive Prime Finish for Spark Testing Geomembranes

On by Geosynthetica
News and Articles

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

On by Geosynthetica
News and Articles

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... »

10 Geomembrane Questions

On by Geosynthetica
News and Articles

Questioning the practice of engineering has long been part of the geosynthetics field. It is this on-going dialogue and re-evaluation that leads to new manufacturing innovations, better CQA, more economical and more sustainable designs, and much more. Here, we present geomembrane questions, as contributed by Dr. Ian D. Peggs, P.E., P.Eng of I-CORP INTERNATIONAL: We install high-density polyethylen... »

Electrical Leak Location Sensitivity Explored

On by Geosynthetica
News and Articles

By Abigail Beck, P.E. – Electrical Leak Location (ELL) survey success is directly related to the sensitivity that can be achieved by the method employed.  Method sensitivity is one of the most widely misunderstood aspects of ELL surveys, since it is largely a function of site conditions and less a function of survey equipment and methodology.  Some adjustments in ELL equipment and survey methodolo... »

Improve Your Business with CQA Week Training

On by Geosynthetica
News and Articles

CQA Week was established 10 years ago to provide technically advanced but immediately implementable, revenue-generating expertise for geotechnical engineering businesses. The focus is on providing the type of training that will keep companies (and regulators) ahead of the field. Held twice per year, CQA Week will next take place 13 – 17 October 2014 in Austin, Texas at the TRI Environmental campus... »

CQA Week Short Courses and Certification, October 13 – 17

On by Geosynthetica
News and Articles

TRI Environmental has announced the short course line up for the next CQA Week. Now in its 10th year, CQA Week will be 13 – 17 October 2014 in Austin, Texas and feature training and certification opportunities in liner integrity (leak location) surveys, CQA of geosynthetic installations, and CQA of compacted clay and GCL installations. REGISTER FOR CQA WEEK ONLINE DOWNLOAD THE BROCHURE (PDF) The s... »

New Edition of Electrical Leak Location Guide

On by Geosynthetica
News and Articles

TRI Environmental has published an updated Electrical Leak Location Survey General Guide. This publication (August 2014) closely follows the release of ASTM International Committee D35’s new standard, D7953 – Standard Practice for Electrical Leak Location on Exposed Geomembranes Using the Arc Testing Method. DOWNLOAD A COPY OF THE ELL GUIDE (PDF) The most substantive change in the guid... »

Electrical Leak Location Method Receives New ASTM Designation

On by Geosynthetica
News and Articles

AUSTIN, Texas – After having been in commercial use in Europe since 1999, the arc testing electrical leak location (ELL) method has finally found a home among other electrical leak location methods in ASTM International’s standards system. ASTM D7953-14, Standard Practice for Electrical Leak Location on Exposed Geomembranes Using the Arc Testing Method, has been approved by Committee D35 on ... »

Twenty-First Century Polyethylene Geomembranes

On by Geosynthetica
News and Articles

By Robert Denis – For the past 15 years or so, polyethylene geomembrane material specifications (test methods, test properties and testing frequencies) have essentially been regulated by the Geosynthetic Institute (GSI). This has enabled the worldwide endorsement of these geomembranes by government regulators and has resulted in wide-scale use. Polyethylene geomembranes have indeed become th... »

Last Chance to Join Special Sessions at Geosynthetics 2015

On by Geosynthetica
News and Articles

Geosynthetics 2015 will be held 15 – 18 February 2015 in Portland, Oregon. Today (April 15) is the final day to submit abstracts to the conference’s technical sessions. Ian Peggs of I-CORP INTERNATIONAL reminds readers that there are two exceptional opportunities to contribute to sessions at the conference: “Critical Applications of Geosynthetics” (high walls, critical cont... »

CQA Week Expands Opportunities and Improves Installations

On by Geosynthetica
News and Articles

The growing issues and opportunities in construction quality assurance (CQA) will be explored on two sides of the world in March and April. From March 25 – 28, CQA Week and its affiliated professional training and certification opportunities will be held on Australia’s Gold Coast. Approximately 8,200 miles and two weeks later, CQA Week events will take place in Austin, Texas (April 14 – 18, CQA We... »

Uncontained: Glen Toepfer Opens Up on CQA

On by Geosynthetica
News and Articles

Glen Toepfer has brought an extraordinary amount of CQA experience to complicated geosynthetic projects, such as the “zero leak” strategy he helped implement at a revered nuclear facility installation. He’s also shared his professional experience through short courses, which he and his CQA Solutions colleagues hold every year at their corporate headquarters in Toledo, Ohio. Now, he’s hitting publi... »

October Liner Integrity Training Dates Announced

On by Geosynthetica
News and Articles

The discipline of liner integrity surveys and assessments (LISA) has changed quickly and has had a dramatic impact internationally on the quality of waste and water-related geosynthetic containment systems. The equipment that enables bare or covered geomembranes to be geo-electrically surveyed has advanced considerably in only a handful of years. Liner defects as small as pin holes can be found on... »

New Standard on Electrical Methods for Locating Geomembrane Leaks

On by Geosynthetica
News and Articles

W. CONSHOHOCKEN, Pa., 2 August 2013—A proposed new ASTM International standard will describe all field-proven electrical methods for locating leaks in installed geomembranes. ASTM WK42576, Practice for Electrical Leak Location on Exposed Geosynthetics, is currently being developed by Subcommittee D35.10 on Geomembranes, part of ASTM International Committee D35 on Geosynthetics. “The technolo... »

July 31 Webinar: Understanding Geomembrane Arc Testing

On by Geosynthetica
News and Articles

In the July 2013 article “Electrical Leak Location Arc Tester to Revolutionize Liner Quality,” Abigail Beck of TRI Liner Integrity Services wrote, “New equipment has been developed that behaves like a spark tester, but doesn’t have to be performed on conductive-backed geomembrane.” Ms. Beck will profile this equipment, known as the Arc Tester, in greater detail during a fre... »

Electrical Leak Location Arc Tester to Revolutionize Liner Quality

On by Geosynthetica
News and Articles

By Abigail Beck, TRI Liner Integrity Services — New equipment has been developed that behaves like a spark tester, but doesn’t have to be performed on conductive-backed geomembrane.  It has the same requirements as the water puddle and water lance methods in terms of a conductive layer underlying the geomembrane, including soil.  It is not a spark tester, which is used exclusively on conduct... »

GSE Environmental Seminar in South Africa

On by Geosynthetica
News and Articles

There’s still time to register for GSE Environmental’s one-day Geosynthetics for Success Technical Seminar on 6 June in Johannesburg, South Africa. This ongoing international series features expert speakers (GSE specialists and independent industry experts) addressing topics of key interest to the location of the seminars. In Johannesburg, the presenters will focus on geosynthetics in ... »

D35 Approves New Leak Location Surveys Standard

On by Geosynthetica
News and Articles

ASTM Committee D35 on Geosynthetics has announced the approval of a new standard: D7852 - Standard Practice for Use of an Electrically Conductive Geotextile for Leak Location Surveys. Developed by Committee D35.10 (Subcommittee on Geomembranes), the scope aims for the standard to be "applicable to all types of geoelectric surveys when there is otherwise not a conductive layer under the geomembrane... »

CQA Week Profile: Liner Integrity Surveys

On by Geosynthetica
News and Articles

When CQA professionals gather in Austin, Texas during CQA Week (April 29 - May 3), those who take part in the liner integrity survey/assessment (LISA) training (April 29 - 30) will discover a number of interesting updates to this event. Now in its 9th year of training events, the TRI Environmental CQA Week LISA education will feature rebuilt test pads for the hands-on field training portion of the... »

New Leak Location Liner Brochure from GSE

On by Geosynthetica
News and Articles

GSE Environmental has published a new brochure for its innovative Leak Location Liner. These HDPE and LLDPE geomembranes are manufactured with a co-extruded conductive layer, which allows for quick and thorough leak detection on both exposed and covered applications by using Electrical Liner Integrity (ELI) surveys. Leak Location Liners are designed for use in applications that require the most st... »

D35 Approves New Standard for Leak Location

On by Geosynthetica
News and Articles

ASTM Committee D35 on Geosynthetics has announced the approval of a new standard: D7852 - Standard Practice for Use of an Electrically Conductive Geotextile for Leak Location Surveys. Developed by Committee D35.10 (Subcommittee on Geomembranes), the scope aims for the standard to be "applicable to all types of geoelectric surveys when there is otherwise not a conductive layer under the geomembrane... »