Properties of Multigrade Bitumen for Pavements Australian Bitumen Specification AS2008 Property | Requirement | M500 | M1000 | Min. | Max. | Min. | Max. | Viscosity at 60ºC, Pa·s | 400 | 600 | Report | Viscosity at 135ºC, Pa·s | - | 1.0 | - | 1.5 | Penetration at 25º C (100 g, 5 s), [0.1 mm] | 65 | - | Report | Flashpoint, ºC | 250 | - | 250 | - | Matter insoluble in toluene, percent mass | - | 1.0 | - | 1.0 | Viscosity at 60ºC, percentage of original after RTFO treatment | - | - | - | - | - | - | - | - | Viscosity at 60ºC after RTFO treatment, Pa·s | Report | 3500 | 6500 | Report | 4000 | 7400 | Penetration at 25ºC after RFTO treatment (100 g, 5 s), [0.1 mm] | Report | 26 | - | Long-term effect of heat and air, days | - | - | - | - | Density at 15ºC, kg/m³ | Report on request | Mass change, percent mass | -0.6 | +0.6 | -0.6 | +0.6 |
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