الوصف

Bitumen is a hydrocarbon material with high viscosity and colloidal structure, and black to dark brown color and is completely dissolvable in Carbon Disulfide and Carbon Tetrachloride. Being impenetrable to moisture and water, electrical insulation, elasticity, moderate resistance against acids, bases and salts and adhesion to other materials are the most important features of bitumen.

The most production type of bitumen in the world is petroleum bitumen which is obtained from crude oil distillation and they are classified based on Penetration Grade (standard ASTM-D5).