Asphalt, also known as bitumen is a sticky, black, and highly viscous liquid or semi-solid form of petroleum. It may be found in natural deposits or may be a refined product, and is classed as a pitch. Before the 20th century, the term asphaltum was also used. The word is derived from the Ancient Greek ἄσφαλτος ásphaltos.
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.
Air Blowing Bitumen
The Air Blowing Bitumen is produced by process of Vacuum Bottom (VB) and air in the reactor and due to the control of the process conditions, different grades are produced.
This Bitumen is applied in construction and maintenance of:
- Highways
- Airport runways
- Pedestrian Ways
- Car parks
- Racetracks
- Tennis courts
- Roofing
- Damp proofing
- Dams
- Reservoir and pool linings
- Soundproofing
- Pipe coatings
- Cable Coatings
- Paints
- Building Water Proofing
- Tile underlying waterproofing
- Newspaper Ink Production
- And many other applications
| 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 | |
| PG 58-16 | ||||
| PG 58-10 | ||||
| PG 64-22 | ||||
| PG 64-16 | ||||
| PG 64-10 | ||||
| PG 70-10 | ||||
| PG 70-16 | ||||
| PG 76-10 | ||||
The test result of Bitumen can be found here.
