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

Journal article (2022)

Authors

Mingliang Li Research Institute of Highway Ministry of Transport
S. Ren Pavement Engineering - CEG
X. Liu Pavement Engineering - CEG
Zhe Wu Jiangsu Aoxin Science & Technology
Haopeng Zhang Sinopec Fuel Oil Shandong
Weiyu Fan China University of Petroleum (East China)
P. Lin Pavement Engineering - CEG
Jian Xu Research Institute of Highway Ministry of Transport
Research Group
Pavement Engineering (CEG) (TU Delft)
Copyright: © 2022 Mingliang Li, S. Ren, X. Liu, Zhe Wu, Haopeng Zhang, Weiyu Fan, P. Lin, Jian Xu
DOI
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https://doi.org/10.3390/ma15155458
Asphalt mixture Asphalt mortar Rejuvenation efficiency Compound rejuvenator Rejuvenated bitumen
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Published Date

2022

Language

English

Faculty

Civil Engineering & Geosciences

Department

Engineering Structures

Research Group

Pavement Engineering

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.