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Title: Prediction of Top-Down Crack Initiation and Propagation in Asphalt Pavements based on a Mechanistic-Empirical Approach
Accession Number: 01333170
Record Type: Component
Abstract: A top-down crack (TDC) prediction model is developed and validated in this study. Fatigue crack initiation and propagation models are selected for the TDC prediction. To predict the TDC for real pavements, the fatigue models are incorporated into a mechanistic-empirical based analysis program. The fatigue models are then calibrated using a PMS data set obtained from Gyungbu Expressway. Through a series of calibration process, calibration factors for the two fatigue models are determined, and the relation between the crack depth and length is proposed by comparing the predicted crack lengths with the PMS data. It is also observed from the calibration that the longitudinal TDC are mostly developed in the wheel path. The TDC prediction model is further validated using the field investigation results conducted on three different pavement sections in Incheon international airport expressway. The validation results indicate that cracking processes in the three pavement sections could be reasonably predicted by the TDC prediction model proposed in this study.
Monograph Title: Monograph Accession #: 01329018
Report/Paper Numbers: 11-3135
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Le, Anh ThangLee, Hyun JongKuai, Hai DongMun, Sung HoPagination: 22p
Publication Date: 2011
Conference:
Transportation Research Board 90th Annual Meeting
Location:
Washington DC, United States Media Type: DVD
Features: Figures
(5)
; References
(13)
; Tables
(4)
Identifier Terms: Uncontrolled Terms: Subject Areas: Highways; Pavements; I22: Design of Pavements, Railways and Guideways
Source Data: Transportation Research Board Annual Meeting 2011 Paper #11-3135
Files: TRIS, TRB
Created Date: Feb 17 2011 6:25PM
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