Development of master curve models complying with linear viscoelastic theory for complex moduli of asphalt mixtures with improved accuracy

It was found that the developed two approaches established master curve models with approximately the same accuracy level with R2 values larger than 0.96. The two approaches also produced about the same time-temperature shift factor at each temperature. Therefore, either approach could be selected to accurately construct master curves of the four viscoelastic parameters in a wide frequency range.