Specification Section: Geosynthetics and Sediment Control
Geosynthetic and sediment control materials are made to stabilize terrain and be used in construction and environmental projects for separation, pavement and earth reinforcement, filtration, drainage, and/or containment. Products include geotextiles, geomembranes, geocells, geocomposites, geogrids, geonets, geosynthetic clay liners, geotextile tubes, pavement edge drains, prefabricated vertical (wick) drains and sheet (wall) drains.
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Advanced Drainage Systems Inc. offers a constantly expanding selection of geosynthetics with new geometrics and material composition. Standard and specialty products are offered for soil stabilization and reinforcement erosion control, drainage, filtration, separation, and other construction needs. All geosynthetics are strong, durable, chemically inert, environmentally compatible and virtually unaffected by ground conditions, weather and aging. Other requirements, such as resistance to creep, temperature and UV exposure, can be specified.
American Excelsior Co. manufactures a line of short-term, long-term and permanent erosion-control blankets as well as sediment-control devices. The company offers a wide variety of erosion-control blankets under the Curlex brand and other specialized products like QuickGRASS Pro to meet a wide number of erosion-control needs. The company invented biodegradable erosion-control blankets, and the Curlex brand has been a trusted name in erosion control for 50 years.
Belton Industries manufactures woven industrial products made from polypropylene/polyethylene. Belton also distributes 100-percent biodegradable erosion-control Geojute and Geocoir fabrics.
Blocksom & Co. manufactures natural-fiber products that serve as excellent sediment-control solutions at sewer inlets and can be used to stabilize soil in areas exposed to wave impact caused by tides, wind or flowing streams.
Conwed plastic netting plays an essential function in rolled erosion-control products as the containment element for erosion control. The company also provides synthetic fibers used in the manufacture of erosion-control products.
Cooley Engineered Membranes manufactures a number of sustainable, high-performance engineered membranes. At the core of its diverse product solutions are geomembranes (reservoir liners, floating covers, primary/secondary commercial containment), reinforced geomembranes (available in up to five-meter segments) and waterproofing (below grade/tunnels).
Drainage Products Inc. offers Drain Away, a prefabricated geocomposite drain consisting of a cuspated plastic core enveloped by a non-woven geotextile filter fabric. Water flows through the fabric from either side and into the voids created by the plastic core, where it’s collected and carried away in a perforated pipe inserted in the bottom of the fabric envelope. According to the company, Drain Away can lower the water table without the labor and costs of aggregate and is ideal for site drainage, road construction, curtain drains, foundations, retaining walls and slopes.
GSE Environmental Inc. offers a wide range of geonet and geocomposite drainage systems to complement or replace sand, stone and gravel. If you require filtration to keep silt and soil particles from clogging flow or increase friction characteristics, GSE offers geocomposites consisting of a geonet that’s heat-bonded with a nonwoven needle-punched geotextile.
Hancor offers a full selection of non-woven and woven fabrics for drainage, separation, stabilization or soil-reinforcement applications. In addition, Hancor’s woven silt-fence geotextile product is available for use in road and sediment-control projects to distribute loads, reduce rutting and extend the life of a road.
Industrial Textiles and Plastics is a UK manufacturer of geomembranes, including methane and radon barriers such as the Puraflex hydrocarbon barrier that shows exceptional resistance and impermeability to VOC compounds. Results of a local soil analysis can be downloaded into their software program, which provides exact permeation data for more than 200 potential contaminants. Applications include contaminated land protection, secondary containment and tunnel lining.
Layfield distributes Geoweb and E’GRID Biaxial Geogrids. Geoweb improves load-bearing capacity and prevents lateral spreading. E’GRID Biaxial Geogrids increase the shearing resistance of soil and are applicable with any type of mechanical fill material for surface roads or rails, including embankment, slope and pavement applications.
Poly-Flex Inc. creates blown-film textured geomembrane liners with smooth edges that eliminate the concern of minimizing texturing to optimize welding. According to the company, the smooth edges can be seamed with a wedge welder at speeds up to four times faster than textured sheets without smooth edges. In addition, blown-film texturing provides increased friction angles for greater stability on steep-slope applications.
Polymer Group Inc. (PGI) manufactures TYPAR nonwoven geotextiles. The continuous-filament, thermally bonded design provides a higher strength:weight ratio than standard non-woven construction fabrics and maintains consistent permeability rates regardless of soil type or compaction. TYPAR Geotextile’s unique characteristics make it the ideal solution for road reinforcement, industrial-yard stabilization, subsurface drain applications, erosion control, landfill separation, mulch underlayment and septic-system projects.
Propex Geosynthetics manufactures the ArmorMax Anchored Reinforced Vegetation System for severe erosion challenges. The system consists of Propex’s woven 3-D High-Performance Turf-Reinforcement Mat with X3 fiber technology and earth-percussion anchors. ArmorMax can be used in non-structural applications, including protecting earthen levees from storm surge and wave overtopping; stream, river and canal banks from scour and erosion; and stormwater channels in arid/semi-arid environments. Propex says ArmorMax can be engineered to provide surficial slope stabilization to resist shallow-plane failures.
Seaman Corp. has been applying its XR geomembrane technology for more than 25 years. The company has a long record of successful installations containing a variety of harsh liquids. XR technology is used in all types of applications, including pond liners, secondary containment, floating covers, wastewater baffles and potable water containment.
Strata Systems Inc. manufactures and distributes a wide variety of soil-enforcement products worldwide, including Stratagrid, StrataSlope, StrataWall, StrataTex, StrataDrain, StrataBase and StrataWeb cellular-confinement system. These advanced soil-reinforcement products deliver system solutions for MSE retaining walls, reinforced steep slopes, embankments over soft soils and load-support applications.
Supertex manufactures a line of industrial-mesh warp-knitted structures such as geosynthetic geogrids and erosion-control products. They produce geotextile fabrics that are both flat and tubular for erosion control, slope control, geo-grids and wattles.
TenCate Geosynthetics offers many woven and nonwoven geotextiles in its Mirafi product line, allowing designers to provide the most economical and efficient design for subgrade stabilization and base-reinforcement applications. These geotextiles are used in environmental applications such as critical subsurface drainage systems, soil separation, permanent erosion control, and protection of HDPE and other geomembranes in landfill construction. According to the company, these products provide the required puncture strength and abrasion resistance to withstand installation and application stresses to create an effective long-term solution.
Tensar North American Green develops, produces and distributes a complete line of high-quality erosion- and sediment-control systems to meet the specific erosion-control, sediment-control, hydraulic, scour-protection and/or vegetation-reinforcement needs of nearly any application. Their Erosion Control Materials Design Software (ECMDS) provides hydraulic analysis for soil-loss prediction, product specification and project planning.
Watersaver provides a wide variety of slope-stabilization grids, nets and geotextile products coupled with impermeable geomembrane liners made from PVC, polypropylene, reinforced linear low-density polyethylene, Hypalon and XR-5. In business since 1953, Watersaver has fabricated more than 1.8 billion square feet of geomembrane liner.