FilterGrid stabilizes working surfaces, such as paved and unpaved roadways, airfields, crane pads and other working surfaces by providing confinement, separation and filtration. FilterGrid combines the stabilization benefits of geogrid with the separation and filtration benefits of a nonwoven fabric.
FilterGrid's unique structure provides a high degree of in-plane stiffness through a mechanism known as lateral restraint. As granular base courses are stress-dependent materials, the confinement offered by properly designed, stiff geogrids improves the modulus of an aggregate material, improves load distribution, and maintains that modulus over a much longer period of time than an unstabilized aggregate. This confinement improves speed of construction, reduces fill requirements, and enhances the performance and durability of these working structures over time.