The primary use (70%) of asphalt is in road construction, where it is used as the glue or binder mixed with aggregate particles to create asphalt concrete. Its other main uses are for bituminous waterproofing products, including production of roofing felt and for sealing flat roofs.
The molecular-weight distribution of this 525+ °C fraction is continuous up to and perhaps beyond a molecular weight of 15 000.
Bitumen is used for road construction, surfacing airfield runways and taxi tracks, hydraulic applications such as canal lining, river bank protection, dam construction and sea defenses.
It is also used in industrial applications like roofing, felt manufacture, printing inks, electrical cable, junction boxes, mastic for flooring, water proofing for terraces, duplex paper manufacture, etc. Bharat Petroleum markets Bitumen in three grades namely 30/40, 60/70, 80/100. The Bitumen is available in packed as well in bulk.