Geogrids are sheets of tensile elements with a regular network of apertures; these grids are constructed of polyethylene, polypropylene, or polyester. Typically, reinforcing geogrids fall into one of two classifications, biaxial or uniaxial. Biaxial geogrids are constructed with tensile reinforcement in two perpendicular directions; whereas uniaxial geogrids have tensile reinforcement in one direction.
- Biaxial geogrids are typically used for applications such as reinforcing a road aggregate base course and corresponding depth reduction and cost savings.
- Uniaxial geogrids are used for applications such as retaining walls and reinforcing earthen embankments.
- Depending upon site specific conditions, both biaxial and uniaxial geogrids could be suitable for use in steepened slopes, embankments over soft soils, and waste containment applications.
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