Agru America, Kingwood, Texas, manufactures high-density polyethylene (HDPE) Microspike liners using a process that creates a rough surface out of the actual lining material. The resulting profile has a regular series of small spikes integrated with the base liner material for landfill lining and capping, the company says. The Microspike, also available in low-density polyethylene (LDPE), has smooth edges to enable wedge welds to be made between adjacent sheets, according to the company. Features include standard 29-inch-diameter rolls with two slings each, special roll lengths available upon request, and a 40-foot standard container and 48-foot flatbed, each with a 12-roll capacity.
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Cetco, Arlington Heights, Ill., manufactures geosynthetic clay liners (GCL), including Bentomat. The product features consistent needle-punched internal reinforcement, Supergroove and is part of the company's CL series for liquid containment, according to the company.
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Covertech, Etobicoke, Ontario, Canada, offers the C440 alternative daily cover made from woven HDPE-coated fabric reinforced with nylon strapping around the perimeter every 12 feet. Heavy-duty D-rings are added to facilitate equipment hook-ups, the company says. The cover can be dragged manually or lifted with equipment. The standard size is 48 feet by 50 feet, but custom sizes are available, according to the company.
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Donnelly Fabricators, Lawrenceville, Ga., offers Texicon concrete mats in four configurations: filter point lining in which the double-layer fabric form is joined by filter points to form a concrete; vegetated mat; uniform section lining; and articulating block mat. A concrete pump can deliver fine aggregate concrete from as far away as 400 feet (120 meters), according to the company. Mat sizes range from 80 pounds to 150 tons, the company says.
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GSE Lining Technology
GSE Lining Technology, Houston, manufactures geomembrane products, geotextiles and geonets. The geonets are made from HDPE resin and are designed to transmit fluids uniformly under many field conditions, the company says. GSE Lining also offers HS and UF Fabrinet geocomposites that are made by laminating nonwoven, needlepunched geotextiles to a layer of GSE Hypernet. UF has a 300-mils-thick layer, and HS has a 275-mils layer. Both versions can be ordered in a mass per unit range of 6 to 16 ounces per square yard, according to the company.
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Poly Flex Inc., Grand Prairie, Texas, offers textured SE geomembranes for steep slopes. SE geomembranes have 7-inch smooth edges on both sides of the sheet to provide the same seaming parameters as a smooth sheet and to minimize texturing to optimize welding, according to the company. No additional personnel are needed to clean dirt and moisture from the seaming surface, the company says.
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SI Geosolutions, Chattanooga, Tenn., offers erosion control blankets (ECBs), turf reinforcement mats (TRMs) and Pyramat TRMs. The Landlok ECBs and TRMs are designed to promote vegetation, provide erosion protection, and improve water quality on slopes and in channels. Geotex nonwovens protect geomembranes by providing impact and puncture resistance, while collecting and laterally transmitting liquids and gases, the company says.
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Tarpomatic, Canton, Ohio, offers the Automatic Tarping Machine (ATM) to deploy and retrieve geosynthetic tarps of varying widths and lengths using one piece of equipment with one operator, the company says. The company's tarps are self-ballasted for use in high wind and to help repel odors and vectors, Tarpomatic says. Tarps also are designed to be waterproof and fire resistant, and to control wind-blown litter, the company states.
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