When bonded to asphalt, structural lightweight aggregate chip seal creates a significantly improved asphalt bituminous surface treatment that is safer, more economical and longer lasting than conventional aggregates. Wet or dry, road surfaces of lightweight chip seal provide superior skid resistance that is maintained throughout the surface life. Lightweight aggregate does not polish as it wears. Because it is light in weight there are trucking and handling cost advantages to the contractor. Also, windshield damage and damage to headlights, and paint caused by “flying” stones is virtually eliminated with structural lightweight aggregate, thus avoiding costly insurance claims and motorist complaints.
Uses of Structural Lightweight Aggregate in Asphalt Road Surfaces