PERFORMANCE EVALUATION OF ASPHALT MIXES CONTAINING RECLAIMED ASPHALT PAVEMENT

Highway agencies around the world are endeavoring to use larger quantities of reclaimed asphalt pavement (RAP) in order to meet economic and environmental needs. Comprehensive road networks are a basis for economic development of any country. RAP use is not only economical and environmental friendly, helps in preservation of natural resources and is similar or even better in performance than virgin asphalt mixtures. This paper presents the experimental study to evaluate the rutting susceptibility and moisture damage of RAP incorporated hot mix asphalt (HMA) using Hamburg Wheel-tracking Device (HWTD). This research showed that all tested HMAs with RAP performed better than the mixtures prepared with virgin aggregate. Major cost categories that have impact on overall cost of any project that are manpower, materials, plant and transport operation are used in this research for cost comparison of control mix and RAP containing mixture. Mixtures containing RAP showed significant variability and the variability increased with the increase in RAP content.