ABSTRACT
This paper reports on pavement modeling of a thin, Highly Modified Asphalt (HiMA) pavement versus a control standard pavement tested at the National Center for Asphalt Technology (NCAT). Modeling was conducted with AASHTOWare™ Pavement ME Design as well as FlexPAVE™ 1.0 software. Both models allow input of basic material properties, fatigue behavior and permanent deformation behavior, in addition to modulus. The 20% thinner HiMA pavement outperformed the control and both models predict this. Material properties of highly modified mixes may be used to adjust model calibration factors in ME Design so that appropriate thickness can be determined through rational design. This methodology has been put into practice and so far the performance results on commercial projects validate the design predictions.
