Journal article
Performance Evaluation of Asphalt overlays in Alberta using Long Term Pavement Performance Specific Pavement Study 5 Sections
International journal of pavement research & technology, Vol.7(1), pp.60-68
01/01/2014
Handle:
https://hdl.handle.net/2376/118248
Abstract
Performance data collected for the Long Term Pavement Performance program (LTPP)'s Specific Pavement Studies (SPS) 5 in Alberta was used to investigate overlay performance in Alberta's climate conditions. Comparison of peak deflection during the Falling Weight Deflectometer (FWD) test for different overlay sections with respect to the control section in seven test years showed that all overlays improved structural capacity of the pavement. The overlay thickness was found to be the most statistically significant factor to the pavement's structural response in comparison to pre-overlay conditions (milling) and asphalt mixture type. Further, overlay thickness and mixture type were found to be the most effective factors to alligator and transverse cracking, respectively. The Mechanistic Empirical Pavement Design Guide (MEPDG)-predicted International Roughness Index (IRI) was higher than the measured values in most years. The MEPDG-predicted pavement rutting was most sensitive to pavement structural design. [PUBLICATION ABSTRACT]
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Details
- Title
- Performance Evaluation of Asphalt overlays in Alberta using Long Term Pavement Performance Specific Pavement Study 5 Sections
- Creators
- Meisam NorouziSomayeh NassiriNegar Tavafzadeh HaghiAlireza Bayat
- Publication Details
- International journal of pavement research & technology, Vol.7(1), pp.60-68
- Academic Unit
- Civil and Environmental Engineering, Department of
- Publisher
- Springer Nature B.V; Jhongli City
- Identifiers
- 99900548321901842
- Language
- English
- Resource Type
- Journal article