Research Article
Study on Mechanical Behavior of Aging Asphalt Based on Composite Regeneration and Modification
Table 9
Indexes of first regeneration and then modification of aging asphalt.
| | Type | Penetration/0.1mm | Ductility/cm | Softening point (°C) | Viscosity/135°C/Pa·s | | 25°C | 5°C |
| | 90# original asphalt | 93 | 9.0 | 44.5 | 0.328 | | Aging asphalt (5 h) | 60 | 4.2 | 49.7 | 0.407 | | Regenerating asphalt (2.5%) (5 h) | 93 | 14.7 | 48.0 | 0.270 | | Modified regenerating asphalt (9%) (5 h) | 45 | 31.5 | 52.0 | 0.600 |
| | 90# original asphalt | 93 | 9.0 | 44.5 | 0.328 | | Aging asphalt (20 h) | 27 | 3.9 | 55.6 | 0.760 | | Regenerating asphalt (6%) (20 h) | 92 | 14.3 | 50.1 | 0.306 | | Modified regenerating asphalt (18%) (20 h) | 38 | 30.2 | 58.0 | 0.621 |
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