Prediction Model of Shear Deformation of Asphalt Mixture Pavement

Abstract:

Dynamic modulus corresponding to effective temperature of permanent deformation was introduced to the calculation of the maximum shear stress and strain in the pavement. The shear deformation prediction model was developed by using the data of wheel rutting test and circular track test. The model was calibrated and verified by the field investigation data as well. The results indicate that the average maximum shear stress of three points at the same depth reflects the change of maximum shear stress in depth better. The shear deformation prediction model has the reasonable form, relatively reliable fitting and prediction results, involving maximum shear stress to shear strength ratio, temperature, loading speed and number.

Key words:asphalt pavement; shear deformation; prediction model