In order to investigate the anti-aging performance of stabilized waste rubber-plastic polymer alloy modified asphalt,a variety of rubber-plastic modified asphalt was prepared by using different dosages of modifiers,and the changes in the performance of these asphalt after aging were analyzed by using thin film oven test(TFOT),and a set of models was established to predict the aging performance.The performance of these asphalts was compared with that of stabilized waste rubber-modified asphalt.The analysis showed that the ad-dition of rubber-plastic modifier significantly improved the aging resistance of asphalt.However,the indexes characterizing the aging resistance of rubber-plastic modified asphalt and the correlation between the amount of modifier dosing is not obvious,the established rubber-plastic modified asphalt aging performance predic-tion model,in addition to the 10 ℃ ductility prediction model,the other models of the prediction error are smaller,showing a relatively high prediction accuracy.
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