Prediction of Dynamic Modulus of Asphalt Mixture Based on Viscoelastic Properties of Asphalt Mortar

The objective of this study is to predict the asphalt mixture dynamic modulus using the viscoelastic properties of asphalt mortar. The dynamic viscoelastic characteristics of asphalt mortar and asphalt mixture are tested at different temperatures and loading frequencies using dynamic shear rheometer, such as storage modulus, loss modulus and phase angle. The complex modulus of asphalt mortar, volume parameters and Hirsch model were used to predict complex modulus of asphalt mixture. The experimental measurements of dynamic modulus were employed to compare with the predictions. The result showed this method can predict complex modulus of asphalt mixture very well.