Layfield introduces HydraNet geonets/geocomposites

April 7th, 2022

Layfield introduces HydraNet geonets/composites, described as cost-effective and environmentally conscious alternatives to aggregate drains. Layfield Group Ltd. has launched HydraNet, a premium line of geonets and geocomposites. HydraNet is constructed from either two strands (biplanar) or three strands (triplanar) of high-density polyethylene (HDPE) extruded into a net-like sheet. Geonets are used to provide channelized flow […]

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Complex geosynthetic liner system for the 70 Ranch Raw Water Reservoir

April 1st, 2022

FIGURE 1 North end of reservoir showing slope panels transitioned into bottom panels and staged cover soils placement on bottom panels Irrigation water in the western United States has always been a major concern for farming and ranching, especially in drought years. Water can be both scarce and expensive, and planning for future water storage […]

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Geosynthetics for Alaska landfill closure

February 23rd, 2022

Solmax provides a combination of geosynthetics for Alaska landfill closure project with multiple geotechnical challenges. Installation of geosynthetics at the Homer Solid Waste Facility landfill in Alaska. Photograph courtesy of Solmax Kenai Peninsula Borough in southern Alaska needed to complete phase two of a landfill-closure project at its Homer (Alaska) Solid Waste Facility. This involved […]

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Geogrid geocomposite saves 50% in installation time

February 8th, 2022

Freudenberg Performance Materials Holding SE & Co. KG released a new geogrid geocomposite aimed at increasing the efficiency of construction projects. EnkaGrid MAX C geogrid geocomposite. Photograph courtesy of Freudenberg Performance Materials Holding SE & Co. KG Germany-based Freudenberg Performance Materials launched EnkaGrid MAX C, a new geogrid geocomposite consisting of a reinforcing geogrid bonded […]

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Geocomposite solution for container park in Mauritius

February 3rd, 2022

TenCate Geosynthetics EMEA stabilized the platform for the Mauritius Container Terminal (MCT) with the geocomposite solution, TenCate Rock PEC 55-55. The TenCate Rock geocomposite solution optimizes the subbase at the Mauritius Container Terminal (MCT), allowing a reduction in the 1.3 foot (400 mm) thick subbase layer to 0.8 feet (250 mm). Photograph courtesy of TenCate […]

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Design of a CCR composite liner system

August 1st, 2021

Q: We are designing a composite liner system for a coal ash landfill. From the bottom-up, the cross section is subgrade soil, geosynthetic clay liner (GCL), geomembrane, composite drainage layer with nonwoven geotextiles on both sides and then ash from coal combustion residuals (CCR). Do you have an opinion on the design, particularly on 3:1 […]

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How to calculate the allowable flow rate of a geocomposite

July 9th, 2021

By Su Jong Hao, Technical Sales Manager, Solmax Asia-Pacific The Geosynthetic Research Institute’s GRI-GC8 design guide provides a methodology to calculate the allowable flow rate of a geocomposite. But there are additional factors that need to be considered.  The GRI-GC8 methodology to calculate the allowable flow rate of the material of choice can be used to determine the factor of safety (FS) in […]

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Biodegradable nonwoven geotextiles from NAUE

July 1st, 2021

In civil engineering, geotechnical materials stand for sustainable construction. In addition to classic geosynthetics, NAUE, manufacturer of geotechnical construction materials, presented its first biodegradable nonwoven geotextile, Secutex Green, in 2020. This biodegradable nonwoven geotextile has already proven itself successfully in various applications. For example, in the dunes of the island of Sylt, Germany, and under a construction road […]

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GRI-GM19 peel specification

April 1st, 2021

Q: Our liner system is a double composite and along a western tie-in. We need to extrusion-weld the secondary 60-mil (1.5-mm) HDPE (new cell) to an existing secondary 40-mil (1-mm) HDPE (old cell), and the state is continuing to have issues with the fact that we are using the 40-mil (1-mm) GRI-GM19 peel specification as […]

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Geosynthetics for Maaden Phosphate Tailings Pond

March 22nd, 2021

In phase 2 of this expansion project, Solmax provided 9,687,519 square feet (900,000 m2) of flawless double-sided, textured FrictionFlex geomembrane for new tailings ponds at a fertilizer plant in Saudi Arabia. The geosynthetics underwent stringent testing by the client and were found to be ideal.   Maaden Phosphate Co., a joint venture with Saudi Basic Industries […]

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