WEBINAR: Asperity Height or Asperity Concentration for Geomembranes?

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For its next technical webinar presentation, Solmax is asking a unique and important question for geomembranes:  Does asperity height or asperity concentration matter more for increasing interface shear resistance along a geomembrane surface? Register online for this free, November 28 (1:00 pm EST) technical webinar. Space is limited! ASPERITY HEIGHT VS ASPERITY CONCENTRATION The objective of text... »

VIDEO: A Manufacturing Approach to Geomembrane Wrinkles Management

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Earlier this year, Solmax took on a very hot topic with a free webinar: managing geomembrane wrinkles. This session followed the discussion created by a Geosynthetic Institute webinar in which Dr. Robert Koerner spoke strongly against wrinkles left in or left to develop in a geomembrane installation. Solmax delivered a welcomed talk on the manufacturing approach to the subject. Technical manager D... »

PODCAST: The Push towards Reinvention in Geomembranes

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Many infrastructure applications rely upon geosynthetic barriers. Over time, we’ve seen the specification of 40 or 60-mil black high-density polyethylene geomembranes become so common that black HDPE can feel almost like a commodity product. In part, this seems at odds with the critical containment these geomembranes provide. But, it is also in part a testimony to how the geosynthetics manufacturi... »

Project: HDPE Geomembranes Secure Storage Basin in Mexico

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An intense dry season across the state of Aguascalientes, Mexico, led to a water shortage in the community of El Muerto and San Juan. Without sufficient rainfall, the danger was that the future supply from the reservoirs would be incrementally reduced. To be prepared for these eventualities, a storage basin was proposed to collect water, storing it for future use when required. The contractor, San... »

EVOH Layers and Better Gas Barrier Performance for Geomembranes

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Geosynthetic barriers perform exceptionally well in liquid containment applications, but gas barrier performance can still be improved. Volatile organic compounds, for example, can diffuse through barrier systems. The rate is low, but the incorporation of an EVOH layer in a geomembrane has shown that the diffusion rate of VOCs can actually be much lower. Applications that utilize geosynthetics and... »

Geosynthetics Presentations at Sardinia 2017

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The preliminary schedule for Sardinia 2017 has been released. The Sardinia Symposium is a long-running international series of waste management and affiliated landfill-related. The biennial event is, in fact, celebrating its 30th anniversary. Geosynthetics will be found throughout the expansive program, but some of the immediate highlights are noted below. Sardinia 2017 will be held 2 – 6 October ... »

NZ’s Central Plains Headrace Canal Update: 600,000 Sq M of HDPE Geomembrane

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The ongoing infrastructure works in Canterbury, New Zealand’s ambitious Central Plains Water Enhancement Scheme is centered around a 55m-high dam and affiliated storage and diversion canals. Up to 60,000 ha (148,230 acres) of land will be irrigated by the project. The Rakaia and Waimakariri Rivers would be connected the 280 million cubic meter-capacity reservoir via a 56km-long headrace canal. The... »

Photos from Geomembrane Welding Quality Workshop

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Geosynthetica organized a geomembrane welding quality workshop in São Paulo, Brazil on April 18 and 19. Our Brazil industry editor Bruno Pedroni attended and reports that more than 30 professionals participated in the event, which was the second workshop of its type in the country. The first workshop was held in 2015. The two-day geomembrane welding quality education was held at the Institute of E... »

Solmax Invites CIM 2017 Attendees to Tour Manufacturing Plant

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The manufacturing process for geosynthetics is complex but learning more about these processes is extremely instructive for how to properly utilize and understand geosynthetic materials. During CIM 2017, one of the biggest mining conferences in Canada, Solmax will open its doors to tours of its state-of-the-art geosynthetics manufacturing plant in Montreal. CIM 2017 is the annual conference of the... »

Managing Geomembrane Wrinkles: A Manufacturer’s Approach

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On April 27 at 1:00 pm EST, Solmax will tackle a very hot topic with a free webinar: managing geomembrane wrinkles. This session follows the discussion created by the Geosynthetic Institute’s (GSI) recent webinar in which Dr. Robert Koerner spoke strongly against wrinkles left in or left to develop in a geomembrane installation. The GSI webinar highlighted a number approaches that might be used to... »

Video: ILT Coal Ash Containment Installation at Reid Gardner

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International Lining Technology began work on a coal ash containment project at the Reid Gardner Generating Station in late November 2016. The 557-MW plant sits on 480 acres near Moapa, Nevada and has been undergoing closure activities in recent years. Three of the sites four units (totally 300 MW of capacity) have service records extending back in the 1960s and 1970s. The site operators began dec... »

Brazil Workshop on Geosynthetics Installation

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Geosynthetica’s Portuguese-language publication, Geosynthetica.net.br, has organized the 2nd Brazil Workshop on Quality in Geosynthetics Installation. The event will be held April 18 – 19 at the Engineering Institute in São Paulo, Brazil. The event is organized by Geosynthetica’s Portuguese-language, Brazil-market publication Geosynthetica.net.br. Participants will also have an opportunity o... »

Cold Weather Watch: Rapid Crack Propagation in Geomembranes

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By Ian D. Peggs and Chris Kelsey – Low temperatures, fast-dropping temperatures, and strong winds can provide the ideal conditions for rapid crack propagation (RCP)—“shattering”—in exposed high-density polyethylene geomembranes. The return of what’s called the “Polar Vortex” in the United States and Canada has brought these conditions with atypically low temperatures occurring quickly. (Editor’s N... »

Atarfil to Manufacture Geosynthetics in the US

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In summer 2016, geomembrane manufacturer Atarfil established an office in the United States as the first step in its investment in North America. The company established a home in Suffolk, Virginia (near Chesapeak and Norfolk) and is on track to initiate full operations in spring 2017. Logistical advantages played a large part in the decision to base the new North American manufacturing venture in... »

Agru America Ups Its Geosynthetics Manufacturing Capacity

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Over the past few years, Agru America has extended its product lines, with new introductions and enhancements to established brands. Now, the company has moved into its next phase of growth, supported by new geosynthetics manufacturing capacity, with a focus on geomembranes. Capacity has been added to Agru’s Georgetown, South Carolina and Fernley, Nevada production centers, which now enables signi... »

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 ... »

Three Companies’ Geosynthetics Combined for CCR Capping Systems

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Geosynthetics are playing an enormous role in updating how coal combustion residuals (CCRs) are managed and stored, both in the near term and for long-term environmental security. INOVA Geosynthetics is now bringing together the engineering insight of three major North American geosynthetics companies to promote CCR capping systems. The Coal Ash Performance Products (CAPP) approach from Pennsylvan... »

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) ... »

The Lighter Side of Geomembranes

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Geomembrane installations often cover substantial areas. Landfill cells pose enormous footprints. Oil and gas pits, industrial processing ponds, and wastewater containment ponds are large installations too, and each year they tend to be built a little larger. The scaling up of these facilities is not just a matter of achieving better operational economics for the facility owner; it’s also because ... »

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... »

SURVEY: Extra-Wide Geomembranes

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I-CORP International’s Dr. Ian D. Peggs, P.E., P.Eng has shared a survey on extra-wide geomembranes. Your participation is invited. Responses are sought from manufacturers, distributors, installers, construction/contracting firms, design engineers, etc. The information gathering project aims to initially assess the market potential for 11.6m-wide, seamless panels of polyethylene and polyprop... »

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... »

10 Geomembrane Questions

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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... »

Earth Anchors for an Exposed Geomembrane Cover

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Maryland Environmental Service (MES) owns and maintains the Midshore Regional Solid Waste System in a region that serves 140,000 residents on the eastern shore of Maryland’s Chesapeake Bay. The 175 acre (708,200m²) Midshore I closed in 2010 after 20 years of successful operation. MES chose to cap the landfill with an Exposed Geomembrane Cover (EGC). The EGC system, which utilizes Platipus Pe... »