What rock are roads paved with?

Question

i really need this ASAP

Answer 1

uh..ashphalt and cement.

Answer 2

gravel likely made of limestone in most parts of the country, at least the midwest

Answer 3

depends on what kind of road. asphalt, concrete, brick, cobblestone. asphalt and concrete use "river rock", stones that have been rounded by river water action. the size varies from marble size to egg size. cobblestones are about the size of a slightly flat grapefruit

Answer 4

um... rocks?

Answer 5

Roadways are paved with a mixture of:  Stones, Stone Dust and Hot Tar