The Deformation Characteristics of Asphalt Mixture Based on Dissipation Energy

The permanent deformation of asphalt Pavement is the accumulated plastic deformation under the effect of environment and load. The rutting is the macroscopic manifestation of the permanent deformation of asphalt pavement. With the use of MTS810 electo-servo controlled testing system and GC (Gyratory Compactor), a five-stage uniaxial compression creep test is applied to study on the performance of the deformation of asphalt mixture. The energy method is applied to analyze the mechanism of the permanent deformation. And the relationship of the dissipation energy and the permanent deformation is obtained. The impact of the loading time on the relationship of the stress and strain is discussed, at room temperature.