Definition of bitumen 40

Bitumen 40 is made from bitumen 60 and it is a soft grade oxidized bitumen that should be packed in the steel drum. It is flexible as it have a high softening point. This type of asphalt is useful to use in road construction to keep the asphalt stable in hot season.

Uses of bitumen 40
  1. For underground moisture and waterproofing works.
  2. For the use in nuclear power engineering, pipeline engineering, bottom anti-corrosion, asphalt production.
  3. For the manufacturing of waterproofing membrane, moisture-proof paper production.
  4. For anti-corrosion paint.
  5. Used for road and bridge caulking purposes.
Technical specification of bitumen 40
Technical indicatorsBitumen 40
Penetration (25 °C, 100g, 5s) / (0.1 mm)10-35
The ductility (25 °C, 5cm / min) / cm is not less than2.5
Softening point (ball method) / °C not less than75
Solubility (trichloroethylene) /% is not less than99.5
Evaporation loss (163 ° C, 5 h) /% no more than1
After evaporation, the penetration ratio (25 °C) /% is not less than65
Flashpoint (open cup) / °C not less than230
Brittle / °Creport