Asphalt is a mixture of aggregates, binders, and fillers used for Constructing and maintaining all kinds of roads & parking areas. Aggregates used for asphalt mixtures could be crushed rock, sand, gravel or Slags. To bind the aggregates into a cohesive mixture, Most commonly, for a binder, bitumen is used.
An average asphalt pavement comprises the road structure above the formation level, which includes unbound and bituminous-bound materials. This gives the pavement the ability to distribute the loads of the traffic before it arrives at the formation level.