Review of Fine Aggregate Angularity Requirements in Superpave Author(s): Jen Lee, Chih; Pan, Changlin and White, Thomas, Purdue University Origin: Indiana Date: March, 1999 Categories: Performance Key Words: Asphalt mixtures, performance, Superpave, laboratory wheel tests, PURWheel, aggregates, fine aggregate angulatory Summary: Superpave aggregate qualification includes the fine aggregate angularity (FAA). The numerical value of the FAA is the mineral aggregate of the loosely packed fine aggregate. Use of FAA has been predicated on the philosophy that higher and lower values of FAA represent fine aggregate that will exhibit high and low internal friction, respectively. The amount of friction depends on the aggregate particle shape and texture. Higher internal friction is associated with increased rutting resistance.