Geotextiles & Geogrids
Geotextiles are permeable fabrics which offer a cost-effective engineered alternative for scarce and difficult to locate natural construction materials. Geotextiles are used in many applications such as drainage, filtration, separation and soil reinforcement, while often being used to improve the performance of civil engineering and construction projects including roads, railways, and landfills.
Generally geotextiles are placed at the tension surface to strengthen the soil it is reinforcing. In addition, geotextiles allow planting on steep slopes, further securing the slope. Typically made from polypropylene or polyester, GSI offers geotextile fabrics in both woven and nonwoven forms.
Geogrids are used to reinforce walls, slopes and road base layers. They provide a high level of stabilization which reduces the need for conventional designs, such as gradual slopes or cantilever walls. As fill is placed on the geogrids, the mesh design locks soil in place, providing differing levels of stability, depending on the type of geogrid used.
Geogrids are most commonly used in:
- Road construction - embankments, overpasses or other sloped areas prone to erosion.
- Pavement reinforcement - roads, parking lots, highways.
- Berm reinforcement for ponds, dams and other water channels