Table of Contents
ISRN Civil Engineering
Volume 2013 (2013), Article ID 176029, 7 pages
http://dx.doi.org/10.1155/2013/176029
Research Article

Rutting Model for HMA Overlay Treatment of Composite Pavements

Civil Engineering Department, University of Louisiana at Lafayette, Lafayette, LA 70504, USA

Received 30 November 2012; Accepted 24 January 2013

Academic Editors: M. Garg and G. Ranzi

Copyright © 2013 Mohammad Abdullah Nur et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Timely rehabilitation and preservation of pavement systems are imperative to maximize benefits in terms of driver’s comfort and safety. However, the effectiveness of any treatment largely depends on the time of treatment and triggers governed by treatment performance models. This paper presents the development of rutting model for overlay treatment of composite pavement in the State of Louisiana. Various factors affecting the rutting of overlay treatment were identified. Regression analysis was conducted, and rut prediction model is generated. In order to better predict the pavement service life, the existing condition of the pavement was also utilized through the model. The developed models provided a good agreement between the measured and predicted rut values. It was found that the predictions were significantly improved, when existing pavement condition was incorporated. The resulting rutting model could be used as a good pavement management tool for timely pavement maintenance and rehabilitation actions to maximize LADOTD benefits and driver’s comfort and safety.