A Comprehensive Study on the Rejuvenation Efficiency of Compound Rejuvenators for the Characterization of the Bituminous Binder, Mortar, and Mixture

A Comprehensive Study on the Rejuvenation Efficiency of Compound Rejuvenators for the Characterization of the Bituminous Binder, Mortar, and Mixture

Li, Mingliang (Research Institute of Highway Ministry of Transport)
Ren, S. (TU Delft Pavement Engineering)
Liu, X. (TU Delft Pavement Engineering)
Wu, Zhe (Jiangsu Aoxin Science & Technology)
Zhang, Haopeng (Sinopec Fuel Oil Shandong)
Fan, Weiyu (China University of Petroleum (East China))
Lin, P. (TU Delft Pavement Engineering)
Xu, Jian (Research Institute of Highway Ministry of Transport)

2022

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.

rejuvenation efficiency
compound rejuvenator
rejuvenated bitumen
asphalt mortar
asphalt mixture

http://resolver.tudelft.nl/uuid:7e1b5401-6f16-4017-855c-dcece1179797

https://doi.org/10.3390/ma15155458

1996-1944

Materials, 15 (15)

Institutional Repository

journal article

© 2022 Mingliang Li, S. Ren, X. Liu, Zhe Wu, Haopeng Zhang, Weiyu Fan, P. Lin, Jian Xu