Natural Asphalt deposits are in petroleum areas. Mostly petroleum reservoirs exposed to surface. One of the most important areas who mined since 1940 is the asphalt deposits of PUB-LTD
Gilsonite has high bond capability due to resin effect to make the asphalt more water proof.
It improves stability for heavy load traffic
Natural bitumen has high melting point making the asphalt is more resistant to plastic deformation
in temperature, and More resistant to ultra violet exposure and to fatigue due to repeated loads.