Preparation and Performance Evaluation of Chemical Reactive High Viscosity Asphalt
In order to simplify the preparation process of high viscosity asphalt,improve the production efficiency and reduce the amount of modifier,the macro and micro properties of high viscosity asphalt were studied based on self-developed chemical reactivity modifier.The chemical reaction type high viscosity as-phalt was prepared by pure stirring technology,and the optimal reaction time was completed by basic physical indexes and infrared spectrum results.The micro-morphology,modification mechanism and properties of chemically reactive high-viscosity asphalt with different modifier content were analyzed,and the optimization of modifier content was completed based on the road performance test of high-viscosity asphalt mixture.The results show that the chemically reactive high-viscosity asphalt can be prepared by pure stirring process,its macro performance and thermal storage stability are excellent,and the corresponding asphalt mixture also has advantages in road performance.The recommended mixing time and modifier content is 3 h and7％-8％,re-spectively.
high viscosity asphaltchemical reactive modifiiermacro propertymicro structurepave-ment performance
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