General Introduction:

Asphalt, also known as bitumen, is a sticky, black, and highly viscous liquid or semi-solid form of petroleum. The surface is black and soluble in carbon disulfide. Asphalt can be divided into coal tar pitch, petroleum pitch and natural pitch. Coal tar pitch is the by-product of coking. Petroleum pitch is the residue of crude distillation, Natural pitch is stored underground, some of which form mineral deposits or accumulate on the surface of the earth.

Application：

In civil engineering, asphalt is widely used as waterproof and anti-corrosion materials, mainly used in waterproofing of the roof, ground and underground structures. Anti-corrosion of wood and steel

Asphalt is also a widely used cementing material for pavement structure in road engineering, Asphalt is widely used in Expressway.