Abstract
Asphalt binder being a high weight hydrocarbon contains asphaltene and maltene and is widely
used as cementing materials in the construction of flexible pavements. Its performance in hot mix
asphalt also depends on combining with different proportions of aggregates. The main objective of
this study was to characterize asphalt cement rheological behavior and to investigate the influence of
asphalt on asphalt-aggregate mixtures prepared with virgin binders and using polymers. Binder
rheology and mixtures stiffness were determined under a range of cyclic loadings and temperature
conditions. Master curves were developed for the evaluation of relationship between parameters like
complex modulus and phase angle at different frequencies. Horizontal shift factors were also
computed to determine time and temperature response of binders and mixes. The results showed that
the stiffness of both the binder and the mixes depends on temperature and frequency of load. Polymer
modified binder is least susceptible to temperature variations as compared to other virgin asphalt
cement. Performance of asphalt mixtures can be predicted from those of asphalt binders using the
master curve technique.
Imran Hafeez, Mumtaz Ahmed Kamal, Muhammad Reza Ahadi, Qamar Shahzad, Nadia Bashir. (2012) Performance Prediction of Hot Mix Asphalt from Asphalt Binders, Pakistan Journal of Engineering and Applied Sciences, Volume 11, Issue 1 .
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