Permeable, Unpaved Roads Offer Fast Site Access—Even Over Soft Subgrades

The 3D cellular confinement technology was developed by Presto Products Company and the U.S. Army Corp of Engineers in the late 1970’s for building roadways over poor subgrades using on-site sand. Ultrasonically-welded strips of High-Density Polyethylene (HDPE) form the 3D GEOWEB® System—transforming infill by giving cohesion and additional strength to non-cohesive soils—through confinement. This translates…


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