Abstract
This study aims to comprehensively investigate the rejuvenation efficiency of various self-developed compound rejuvenators on the physical, mechanical, and aging properties of aged bitumen, asphalt mortar, and mixture. The results revealed that the restoration capacity of vacuum distilled-oil rejuvenators on high-and-low temperature performance-grade of aged bitumen is more significant. In contrast, an aromatic-oil based rejuvenator is good at enhancing low-temperature grade and aging resistance. Moreover, the temperature and time of the curing conditions for mixing recycling of asphalt mixture were optimized as 150 °C and 120 min. Furthermore, the sufficient anti-rutting, structural stability, and moisture resistance of recycled asphalt mixture affirmed the rejuvenation efficiency of compound rejuvenators.
Original language | English |
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Article number | 5458 |
Number of pages | 24 |
Journal | Materials |
Volume | 15 |
Issue number | 15 |
DOIs | |
Publication status | Published - 2022 |
Keywords
- rejuvenation efficiency
- compound rejuvenator
- rejuvenated bitumen
- asphalt mortar
- asphalt mixture