Bitumen 60/70, 85/100, 40/50
Bitumen is one of the derivatives of oil in black and pasty form, which has many applications in asphalt, road construction, insulation and roof waterproofing. This material has many types of its own and each one of them is used in different industries according to its unique physical characteristics. It varies as a hydrocarbon from black to brown and is completely soluble in carbon sulfide and carbon tetra chloride. This material is in solid shape in room temperature and ambient conditions and by increasing temperature, its shape will change to liquid and paste form. One of the main reasons for the diversity in its types is due to the existence of two significant properties in this material, including its permeability and adhesion.