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RSS FeedsMaterials, Vol. 11, Pages 892: Residual Fatigue Properties of Asphalt Pavement after Long-Term Field Service (Materials)

 
 

27 may 2018 18:01:11

 
Materials, Vol. 11, Pages 892: Residual Fatigue Properties of Asphalt Pavement after Long-Term Field Service (Materials)
 




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.


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57 viewsCategory: Chemistry, Physics
 
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