Analysis of Rutting Deformation and Fatigue Life of Asphalt Pavement Based on Cold Recycling Technology
Compared with traditional asphalt pavement maintenance methods,cold recycling technology can save a large amount of raw materials such as asphalt and sand as well as engineering investment,and is beneficial for waste treatment and environmental protection.Therefore,it has significant economic and social benefits.Research on the rutting deformation and fatigue life of asphalt pavement by cold recycling technology are conducted.Three pavement structural models were established by ABAQUS finite element software to obtain material parameters of asphalt sur-face layer and other structural layers.The correctness of the model was verified by on-site test data.The equivalent temperature field of permanent deformation of asphalt pavement was determined to better calculate the rutting defor-mation of cold regenerated asphalt pavement.In addition,the mechanical response and fatigue life prediction of emulsified asphalt and foam asphalt cold recycling pavement structures were compared and analyzed,and corre-sponding engineering suggestions were given based on the analysis results.
asphalt pavementcold regenerationfinite element analysisrut deformationfatigue life
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