TY - GEN
T1 - Performance Evaluation of Hot In-Place Recycled Asphalt Mixtures
AU - Wang, Yabo
AU - Wang, Yipeng
AU - Cheng, Ming
AU - Chen, Yuheng
AU - Feng, Decheng
AU - Ilyin, Sergey
AU - Yi, Junyan
N1 - Publisher Copyright:
© 2023 ASCE.
PY - 2024
Y1 - 2024
N2 - In this study, the road performance of hot in-place recycled asphalt mixture is systematically evaluated through laboratory tests. Four kinds of asphalt mixtures are selected for the study: AC-10 before regeneration, AC-16 before regeneration, AC-10 after regeneration, and AC-16 after regeneration. The high-temperature and low-temperature properties of the asphalt mixture before and after regeneration are evaluated by rutting test, semi-circular bending test, and small beam bending test. The freeze-thaw splitting test, four-point bending fatigue test, and dynamic modulus test are used to determine the water stability, fatigue life, and uniaxial compression dynamic modulus of the asphalt mixture before and after regeneration. The results show that the asphalt mixture before and after regeneration has better high-temperature performance, and the low-temperature performance and water stability of the asphalt mixture before regeneration were poor. The fatigue life of the mixture before regeneration is low and prone to brittle fracture. And the low-temperature performance, water stability, fatigue performance of the asphalt mixture after regeneration is better. The results of the study have important guiding significance for the research of hot in-place recycled asphalt mixtures.
AB - In this study, the road performance of hot in-place recycled asphalt mixture is systematically evaluated through laboratory tests. Four kinds of asphalt mixtures are selected for the study: AC-10 before regeneration, AC-16 before regeneration, AC-10 after regeneration, and AC-16 after regeneration. The high-temperature and low-temperature properties of the asphalt mixture before and after regeneration are evaluated by rutting test, semi-circular bending test, and small beam bending test. The freeze-thaw splitting test, four-point bending fatigue test, and dynamic modulus test are used to determine the water stability, fatigue life, and uniaxial compression dynamic modulus of the asphalt mixture before and after regeneration. The results show that the asphalt mixture before and after regeneration has better high-temperature performance, and the low-temperature performance and water stability of the asphalt mixture before regeneration were poor. The fatigue life of the mixture before regeneration is low and prone to brittle fracture. And the low-temperature performance, water stability, fatigue performance of the asphalt mixture after regeneration is better. The results of the study have important guiding significance for the research of hot in-place recycled asphalt mixtures.
KW - dynamic modulus
KW - fatigue life
KW - high-temperature performance
KW - hot in-place recycled
KW - low-temperature performance
UR - https://www.scopus.com/pages/publications/85184848654
U2 - 10.1061/9780784485255.053
DO - 10.1061/9780784485255.053
M3 - 会议稿件
AN - SCOPUS:85184848654
T3 - International Conference on Road and Airfield Pavement Technology 2023 - Proceedings of the 13th International Conference on Road and Airfield Pavement Technology
SP - 644
EP - 658
BT - International Conference on Road and Airfield Pavement Technology 2023 - Proceedings of the 13th International Conference on Road and Airfield Pavement Technology
A2 - Yao, Hui
A2 - Zhang, Jinxi
A2 - Fang, Fwa Tien
A2 - Fang, Fwa Tien
A2 - Wang, Chao
PB - American Society of Civil Engineers (ASCE)
T2 - 13th International Conference on Road and Airfield Pavement Technology, ICPT 2023
Y2 - 6 July 2023 through 8 July 2023
ER -