Gilsonite in asphalt

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 mine. gilsonite has been used mainly for road construction and maintenance. The mixture of Gilsonite enforces asphalt against rutting and thickness of the asphalt with becoming thin. 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.