Durawhisper™ consists of a 10mm nominal size, dense-graded asphalt mixture designed with 2 to 4 percent air voids. The aggregate particle shape and the design of the stone skeleton provide excellent rutting resistance and vehicular traffic noise-reducing characteristics. Crumb rubber, which is added to the asphalt mix, is beneficial for improved durability and long-term performance, particularly when subject to heavy slow-moving traffic.
The combination of the crumb rubber additive and the use of a polymer-modified binder provide increased resistance to reflective cracking initiated when paving overlays to existing concrete slabs.
Its traffic noise-reducing properties make Durawhisper ideal for surfacing in and around subdivisions and general residential areas.