[damage]

Bitumen is basically sprayed on then covered with a layer of rocks and then sprayed again. Asphalt is super heated bitumen and crushed rock that is compressed through a machine into a layer that's typically 25mm thick ( thicker on high traffic areas and highways ) generally AC is applied over a chip seal of bitumen and rock

Generally bitumen is more of a dust seal where as asphalt is a proper pavement and ends up like a concrete surface hence AC or Asphaultic Concrete.