Viscous road petroleum bitumen of grade BND 40/60 produced to TDS 771-2015, a hard paving grade for hot climates and heavily trafficked pavements.
Specification
- Penetration at 25 °C 40–60 (0.1 mm)
- Softening point not below 51 °C
- Ductility at 25 °C not less than 45 cm
- Fraass breaking point not above −12 °C
- Flash point not below 230 °C
Physical and chemical indicators
Viscous road petroleum bitumen — TDS 771-2015
| Parameter | BND 60/90 | BND 40/60 |
|---|
| Penetration, 0.1 mm, at 25 °C | 61–90 | 40–60 |
| Penetration, 0.1 mm, at 0 °C, min | 20 | 13 |
| Softening point, ring and ball, °C, min | 47 | 51 |
| Ductility at 25 °C, cm, min | 55 | 45 |
| Ductility at 0 °C, cm, min | 3.5 | — |
| Fraass breaking point, °C, max | −15 | −12 |
| Flash point, °C, min | 230 | 230 |
| Change of softening point after heating, °C, max | 5 | 5 |
| Penetration index | −1.0 to +1.0 | −1.0 to +1.0 |
Applications
Road construction and surface dressing, cold and hot mix asphalt, priming coats, and stabilisation of base courses.
Loading and delivery
FCA Türkmenbaşy or Seýdi refinery. Bulk in heated rail tank cars and road tankers; liquid grades also supplied in drums.