Determining the Contribution of Different Structural Layers of Asphalt Pavement System to Rutting Using Transverse Profile Analysis

Hussan S.^1, , Kamal M. A.¹, Khan M. B.², Irfan M.² and Hafeez I.¹

¹Department of Civil & Environmental Engineering, University of Engineering & Technology (UET), Taxila, Pakistan

²National Institute of Transportation, School of Civil & Environmental Engineering (SCEE), National University of Sciences & Technology (NUST), Islamabad, Pakistan

Cite this paper:
Hussan S., Kamal M. A., Khan M. B., Irfan M. and Hafeez I.. Determining the Contribution of Different Structural Layers of Asphalt Pavement System to Rutting Using Transverse Profile Analysis. American Journal of Civil Engineering and Architecture. 2013; 1(6):174-180. doi: 10.12691/ajcea-1-6-7

Abstract

Rutting is one of the major distresses which cause hydroplaning and structural failures in a flexible pavement. The extent of damage depends upon the load induced and the strength of each pavement layer. Rutting can occur due to the failure of the subgrade, the base or at the wearing surface/ hot mixasphalt (HMA) layer(s).In order to take remedial measures, it is imperative to be cognizant of the contribution of each layer to ascertain the cause of underlying phenomena of rutting. This research study demonstrates the analysis of the pavement transverse surface profile that could be used to identify the layer responsible for the permanent deformation. Transverse surface profiling techniqueis easier, non-destructive, and economicalas compared to traditional methods of coring and trenching to examine underlying layers. A 300 meter section on National Highway (N-5) was selected exhibiting severe rutting to perform transverse profile analysis. Results of this study suggest that rutting at the selected site is mainly due to the shear failure of HMA layer. These results were also validated by field trenching on the test section. The study concluded that HMA layer should be removed and replaced with appropriately designed high performance mix specifications.

Keywords:
rutting hot mix asphalt rut depth transverse profile

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References:

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