Liaparo tsa asphalt tse sa keneleng metsi, e ntšitsoeng petroleum, li entsoe ka tse sa fetoheng, li-hydrocarbon tse phahameng tsa molek'hule.
Haholo-holo ka mocheso o phahameng, liaparo tsena li ntša mosi o kotsi o tsoang linthong tse kotsi ka har'a asphalt, e amang haholo boleng ba moya o kahare.