Bitumen (Asphalt)

Bitumen (Asphalt)

Bitumen, black or brown petroleum-like material that has a consistency varying from viscous liquid to glassy solid. It is obtained either as a residue from the distillation of petroleum or from natural deposits. Bitumen consists of compounds of hydrogen and carbon with minor proportions of nitrogen, sulfur, and oxygen. Natural asphalt (also called brea), which is believed to be formed during an early stage in the breakdown of organic marine deposits into petroleum, characteristically contains minerals, while residual petroleum asphalt does not.Bitumen commonly used to:

– surface roads

– parking lots,

– airports, as well as the core of embankment dams

     

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