The material can then be incorporated into hot mix asphalt (HMA) or can be left in aggregate form and used as a base material or to surface driveways, roads, parking lots and recreational trails. The aggregate material is still coated with asphalt and contains tar. Crusher Run AtAGlance
While asphalt is an oil product Asphalt is recyclable. Old Asphalt from parking lots, driveways and roadways can be removed and replaced (often my milling) back into new asphalt at asphalt plants. There is no limit on how many times asphalt can be reused and recycled. Concrete, while not made of oil cannot be recycled back into concrete.