Viscoelastic model and structural properties of Sasobit-modified asphalt
This study has modeled the rheological response of Sasobit-modified bitumen using a combination of two different models that describe gel-asphalt and sol-asphalt,respectively.Sasobit-modified asphalt is cooled after heating,the wax forms a crystal network structure,and gel-asphalt is obtained.The creep process of Sasobit-modified asphalt can be described by a nonlinear model,which is accompanied by the damage of the network structure,and thus,sol-asphalt is obtained.The network structure change of the wax in the asphalt may explain the mechanism of deviation from TTSP,and the structural characteristics of Sasobit-modified asphalt could be clearly described by the combined model.This will provide a foundation for accurately acquiring the rheological properties of Sasobit-modified asphalt.
万方数据
维普
