Nonwoven Geotextiles
Subsurface Drainage, Roadway Separation, Railroad Stabilization, Hard Armor Underlayment, Asphalt Overlay, Geomembrane Protection, Gas Collection, Drainage Systems.
Backed by the sources and experience of a world renowned producer of polypropylene textile fibers, our ISO 9002 certified, fully automated nonwoven plant is dedicated to produce only high quality, needle punched, staple fiber geotextiles. Continuous filaments of polypropylene are extruded on the world's largest fiber extrusion line. Fibers are then cut, opened, laid into a web, needle punched, heat-set and rolled to create Geotex® nonwovens. After careful inspection and testing, these engineered products are then ready for shipment to job sites all over the world.
Whether constructing a roadway, designing an erosion control plan or planning a subsurface drainage system, Geotex® needle-punched nonwoven geotextiles are a proven benefit to your project.
Subsurface Drainage - Our lightweight to medium weight nonwoven geotextiles prove to be excellent filters, allowing subsurface water to pass into the drainage core while preventing adjacent soil from clogging the system. When properly selected, nonwoven geotextiles are effective in most all soils, particularly in environments where silt and clay are prominent.
R
oadway Separation/Railroad Stabilization - Deploying a Geotex® nonwoven geotextile directly on a soft, saturated subgrade extends road and railway life by preventing aggregate and ballast from punching into the subgrade and intermixing. Geotex 401 meets American Association of State Highway
Transportation Officials (AASHTO) M288-00 Class 3 standards and Geotex 801 exceeds the requirements for Class 1 textiles used in Roadways. Several of our heavyweight nonwovens meet American Railway Engineering and Maintenance Association (AREMA) requirements for railroad stabilization.
Hard Armor Underlayment - A Geotex nonwoven geotextile can help to relieve hydrostatic pressure beneath hard armor and prevent subsurface soils from migrating through the erosion control system. Geotex 801 and 401 meet the requirements for Class 1 and Class 3 erosion control geotextiles, respectively, as outlined in AASHTO M288-00.
Environmental Engineering Applications
Many properties of nonwoven geotextiles are utilized, in one location or another, at waste disposal facilities. Demonstrating excellent chemical compatibility with various leachates, SI® Geosolutions has completed EPA 9090 testing on our Geotex® nonwoven polypropylene geotextiles.
Geomembrane Protection - Heavyweight and ultra-heavyweight Geotex nonwoven geotextiles cushion and protect geomembranes from damage by sharp objects, elevating puncture, impact and abrasion resistance. Nonwoven geotextiles up to 1350 gr/m2 (40 oz/yd) are also available for the most challenging applications.
Drainage Systems - When placed in intimate contact with a drainage stone, medium weight Geotex nonwoven geotextiles can filter soil and waste while allowing water and leachate to pass. An efficient design utilizing recommended Geotex nonwoven geotextiles can lead to proper leachate management in new cells and rapid surface water collection and removal in closure plans.
Gas Collection - Heavyweight and ultra-heavyweight Geotex nonwoven geotextiles provide collection and lateral transmission of liquids and gases that may build up beneath flexible geomembranes used in the closure and capping of waste facilities.
Asphalt Overlays
Pave-DryNonwoven geotextiles are specifically engineered for asphalt overlays. Pave-Dry geotextiles are installed during rehabilitation as a fabric interlayer between the old and new asphalt layers in flexible pavement systems. Because polypropylene has an affinity for petroleum products, tack coats easily migrate into the fibers. This creates an inert, laminated composite that have proven to extend roadway life an average of 3 to 7 years.