Standard Viscosity Grade Bitumen also known as AC Grade Viscosity Bitumen. With AC grading, asphalt binder is specify by properties it possesses before it undergoes HMA making process. Asphalt binder samples Viscosity of standard bitumen measured at 60 ºC . The AC viscosity bitumen categorized in 6 different grades include: AC 2.5, AC 5, AC 10, AC 20, AC 30 and AC 40.
Asphalt concrete is a composite material commonly used to surface roads, parking lots, airports, as well as the core of embankment dams.