Natural Asphalt ( Gilsonite )

Gilsonite is the naturally occurring mixture of bitumen and mineral matter formed by oil seepages in the earth’s crust. Iran Gilsonite in rock form is available in the west of Iran between Ilam and Kermanshah and Iraq border. The first Gilsonite came from Caribbean country Trinidad and Tobago and it was contenting 55% hydrocarbon and the rest minerals. Initially, this kind of Gilsonite used as the additive in road construction. There is another origin of Gilsonite which is coming from another city in Kuhdasht belong to Lorestan province in Iran. The hydrocarbon content is much lower than Ilam and Kermanshah and it is just using for the foundry. Hydrocarbon content or bitume

Gilsonite Usage
In paint industry
In polish industry
As carbon black wetting agents for black news ink and heat set and gravure ink
As a binder in wood products industry
In drilling mud fluids and oil well cementing
As asphalt modifiers
As foundry sands and casting sands additives
In cementing slurries
To insulate tanks, tubes and even molding
As a binder and additive in steel desulfurization products
To make waterproof coatings for water pipes
Asphalt driveway coat sealer
Solvent-based and emulsion pavement sealers
As a performance-enhancing agent for asphalt mixes
As an organic fuel in fireworks
For manufacture of high purity carbon electrodes in the nuclear industry
As a binder in metallurgical additives and refractories
In manufacture of con-tact and hot…

Gilsonite in road asphalt
Gilsonite (Natural bitumen) are natural occurring hydrocarbon substances characterized by a high softening point (above 110° C) in the class known as asphaltite. They are mined much like other minerals and sold essentially in their native state. They are fully compatible with asphalt and have long been known as asphalt hardeners and reinforcing agents. Gilsonite is currently sold all over the world as a road bitumen modifier in the form of a dry bulk solid granular powder.

The mixture of Gilsonite (Natural bitumen) into road asphalt relates to a base stock composition comprising a blend of natural bitumen and a rubber latex residue. The base stock may be used alone as a paving material or emulsified to form a natural bitumen emulsi