BITUMEN
Bitumens (from Latin “bitumen” – fossil resin, crude oil) are heavy or retinoid products combining hydrocarbons and their nitrogen, oxygen, sulphur and metallic derivatives. Bitumens are water-insoluble, fully or partially soluble in benzene, chloroform, carbon sulphur and other organic solvents; its density is 0.95—1.50 g/cm³. Penetration grade bitumen is classified according to Penetration (ASTM D5) and Softening Point (ASTM D36).
Bitumen 40/50:
Bitumen 60/70:
Bitumen 80/100:
Application:
- In the construction and repair of road surface
- In the construction and repair of airfield
- Bonding material in production of asphalt-concrete mixtures
PENETRATION GRADE, BITUMEN
| Nr. | Constituent | Specifications | |||
| Grade | 40/50 | 60/70 | 80/100 | Test Method | |
| Penetration @ 25 Deg. C (mm/10) | 40/50 | 60/70 | 80/100 | D5 | |
| Softening Point (Deg. C) | 52/60 | 49/56 | 45/52 | D36 | |
| Ductility @ 25 Deg. C (cm/s) | Min. 100 | Min. 100 | Min. 100 | D113 | |
| Loss on Heating (WT%) | Max. 0.2 | Max. 0.2 | Max. 0.5 | D6 | |
| Flash Point (Deg. C) | Min. 250 | Min. 250 | Min. 225 | D92 | |
| Solubility in CS2 (WT%) | Min. 99.05 | Min. 99.05 | Min. 99.05 | D4 | |
| Drop in Penetration after Heating (%) | Max. 20 | Max. 20 | Max. 20 | D5 | |
| Specific Gravity @ 25Deg. C | 1.01/1.06 | 1.01/1.06 | 1.001/1.05 | D70 D3982 | |