Woven geotextiles are a time-tested and cost-effective solution for a variety of applications including: stabilization of construction entrances and staging areas; bridging over soft soils; separating dissimilar soils; reinforced soil structures, shoreline erosion control; and bulkheads.
There are three basic structures of woven geotextiles:
1) Slit Film Woven Geotextiles:
NTEC are manufactured by weaving flat strands of polypropylene that are created by slitting a plastic sheet.
These geotextiles aid in construction over soft or weak soils by providing separation and stabilization and are excellent for park-on/drive-on applications. While they are permeable, slit-film geotextiles perform poorly when a gradient ratio test is performed. Therefore, they can clog. As such, they are not recommended for filtration applications such as bulkheads, erosion control or underdrains.
2) Monofilament Woven Geotextiles:
NTEC are manufactured by weaving extruded, round strands of polypropylene.
Woven monofilament geotextiles have a unique property called percent open area and perform very well when a gradient ratio test is performed. Therefore, they are preferred for applications where both strength and filtration are a concern, such as shoreline rip rap and bulkhead applications.
3) Combination Woven Geotextiles:
Woven combination geotextiles are manufactured by weaving round monofilament yarns in one direction and flat tape or fibrillated yarns in the other. They provide an excellent combination of strength and hydraulics.