What is the difference between asphalt and concrete?

"Asphalt" the paving material is more properly called asphaltic concrete. It's gravel held together by a binder of a tarry substance extracted from crude oil known as bitumen. Bitumen is also itself sometimes called asphalt. "Concrete" is a type of building material that basically consists of rocks (gravel) combined with cement and usually sand. the crisp like the firt jsk; <:O :) >:l