Bitumen 40
Bitumen 40 is made by the extract of bitumen #60 and it is the very soft grade of oxidized asphalt that should be packed in the steel drum. It is flexible bitumen while the softening point is high.This type of asphalt is useful to use in road construction to keep the asphalt stable against hot season and movement.
Uses of bitumen #40
1. For underground moisture, waterproofing works
2. For nuclear power engineering, pipeline engineering, bottom anticorrosion, asphalt production of the production
3. For waterproofing membrane, moisture-proof paper production, etc.
4. For Anti-corrosion paint and waterproof production
5. Used for road and bridge caulking use
Datasheet of bitumen number 30
| Technical indicators | 30 |
| Penetration (25 ° C, 100 g, 5 s) / (0.1 mm) | 10-35 |
| The ductility (25 ° C, 5 cm / min) / cm is not less than | 2.5 |
| Softening point (ball method) / ℃ not less than | 75 |
| Solubility (trichloroethylene) /% is not less than | 99.5 |
| Evaporation loss (163 ° C, 5 h) /% no more than | 1 |
| After evaporation, the penetration ratio (25 ℃) /% is not less than | 65 |
| Flashpoint (open cup) / ℃ not less than | 230 |
| Brittle / ℃ | report |