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Materials 2018, 11(6), 892; https://doi.org/10.3390/ma11060892

Residual Fatigue Properties of Asphalt Pavement after Long-Term Field Service

1
State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China
2
School of Transportation, Wuhan University of Technology, Wuhan 430070, China
3
Faculty of Engineering, China University of Geosciences (Wuhan), Wuhan 430074, China
4
Research Institute of Highway Ministry of Transport, Beijing 100088, China
5
National Engineering Research Center of Road Maintenance Technologies, Beijing 100095, China
*
Authors to whom correspondence should be addressed.
Received: 17 April 2018 / Revised: 15 May 2018 / Accepted: 23 May 2018 / Published: 25 May 2018
(This article belongs to the Special Issue Environment-Friendly Construction Materials)
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Abstract

Asphalt pavement is widely used for expressways due to its advantages of flexibility, low cost, and easy maintenance. However, pavement failures, including cracking, raveling, and potholes, will appear after long-term service. This research evaluated the residual fatigue properties of asphalt pavement after long-term field service. Fatigue behavior of specimens with different pavement failure types, traffic load, service time, and layers were collected and characterized. Results indicate that after long-term field service, surface layer has a longer fatigue life under small stress levels, but shorter fatigue life under large stress levels. Longer service time results in greater sensitivity to loading stress, while heavier traffic results in shorter fatigue life. Surface and underneath layers present very close fatigue trend lines in some areas, indicating that the fatigue behavior of asphalt mixture in surface and underneath layers are aged to the same extent after eight to ten years of field service. View Full-Text
Keywords: asphalt pavement; fatigue property; pavement failure; long-term field service asphalt pavement; fatigue property; pavement failure; long-term field service
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Cui, P.; Xiao, Y.; Fang, M.; Chen, Z.; Yi, M.; Li, M. Residual Fatigue Properties of Asphalt Pavement after Long-Term Field Service. Materials 2018, 11, 892.

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