Bitumen penetration grade 60/70 means the penetration value is in the range 60 to 70 at standard test conditions which commonly used as a Paving Grade. Bitumen is applicable for the production of hot mix asphalt for bases and pavements and for road construction. Bitumen penetration grade 60/70 is semi-hard penetration grade bitumen used as a paving grade bitumen which is suitable for road construction and repair. It is also used for the production of asphalt pavements with the below technical specification
Characteristics | Test Method | Unit | Specification |
---|---|---|---|
Specific gravity @25℃ | ASTMD D5 | Kg/cm3 | 1.01/1.06 |
Penetration @25 ℃ | ASTM D5 | mm/10 | 60/70 |
Softening point ℃ | ASTM D36 | ℃ | 49/56 |
Ductility @25℃ | ASTM D113 | cm | 100MIN |
Loss on heating(wt)% | ASTM D6 | wt% | 0.2max |
Drop in penetration after heating% | ASTM D5-D6 | % | 20Max |
Flashpoint℃ | ASTM D92 | ℃ | 232min |
Solublity in trichloroethylene | ASTM D2042 | Wt% | 99min |
Spot test | A.A.S.H.O.T102 | Negative |