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Road bitumen
UNIBIT 35/50
This bitumen is applied in road building for producing:
- asphalt concrete (BA) for building base course layers and a binding surface,
- asphalt concrete of a high stiffness module (BA WMS),
- stone mastix asphalt (SMA),
- cast bitumen.
The use of this bitumen in producing asphalt concrete provides a building material that features high resistance to permanent deformaions and maintains resistance to low-temperature cracking. UNIBIT 35/50 proves itself in road structures located in areas with a high annual ampltude of temperature and exposed to very heavy traffic load.
Specification
| Penetration at 25°C, 1/10 mm | 35-50 |
| Softening point, °C, | 56-65 |
| Flash-point °C, min | 240 |
| Fraas breaking point, °C, max | -15 |
| Penetration index, Pen/Pik | ≥0,3 |
| Paraffin content, % m/m, max | 2,2 |
| Density at 15°C, g/cm3 |
1.0-1.1 |
| Dynamic viscosity at 60°C, Pa s, min |
1300 |
| Mass change, % m/m, max | 0,5 |
| Other penetration, %, min | 63 |
| Softening point, °C, min | 52 |
| Fraas breaking point after ageing, °C, max | -5 |