Bitumen

Process by which compressed air is blown into vacuum bottom residue, typically at 230–260 °C in a reactor. This process result in complex reactions (such as Dehydrogenation، Polymerization، Oxidation). Different grades for suited applications produced Due to ratio of air blowing.

Application:

Road: 90 percent of the bitumen is used in the construction and maintenance of roads.

Roofing: 10 percent of the bitumen is used in the roofing and other. (Canals and tunnels, pipe coating)

Types:

Natural Bitumen: This bitumen is extracted from mines, which are used in many industries, including road construction, the paint industry, polish and insulation of tanks and tubes and molding.

Coal Tar: Coal tar is a black or dark-brown a residue produced by the heat treatment of coal. It is a solid at room temperature.

Petroleum Bitumen: Mixture of hydrocarbons derived from petroleum. Black or brown, it varies from viscous to solid, producing by air blowing process vacuum bottom. (Crude oil derivatives)

Penetration Grade

Performance Grade(PG)

Viscosity Grade

Australian Standard

ASTM/ AASHTO

EN

40/50

30/45

PG 46-28

VG10

170WA

60/70

35/50

PG 46-22

VG20

C170

85/100

40/60

PG 46-16

VG30

C240

120/150

50/70

PG 46-10

VG40

C320

180/200

70/100

PG 52-22

 

C450

200/300

100/150

PG 52-16

C600

 

160/220

PG 52-10

 

250/330

PG 58-22

 

PG 58-16

PG 58-10

PG 64-22

PG 64-16

PG 64-10

PG 70-10

PG 70-16

PG 76-10

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