In 1987, the County of San Diego, California, Department of Public Works developed test sections on Yaqui Pass Road to evaluate the performance of several surface treatments. The goal was to find a treatment to retard reflective surface cracks under desert conditions. While all of the treatments used sealed the road surface well, only chip seal over fabric eliminated reflective surface cracks. Moreover, a 30-year life-cycle cost analysis showed that the annual cost was one-half that of chip sealing with crack sealing. This article provides further details on the fabric properties, fabric placement, chip seal placement and product performance.
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