Research On The Performance Of Asphalt-rubber And Asphalt-rubber Mixture

The performance of crumb asphalt-rubber and mixtures are tested and investigated. The purpose is not only to reduce the environmental pollution and Saving resources,but also to improve the performance of the paving materials.The main research:Analysised the influencing factors of asphalt rubber from prescription and crafts and modification mechanism;Not only studied the paving performance of AR-SMA-13 and AR-AC-13 but also Predicted the Fatigue life of them.The main achievement includes: Come to the law of Stirring time,rubber powder and dosage on the performance of asphalt rubber; Determined the corresponding design of rubber asphalt mixture (the composition of rubber asphalt, the grade of aggregate,asphalt aggregate ratio);It had conducted the experimental study to the asphalt rubber mixtyre physical mechanics performance, which indicated that the asphalt rubber mixture has the high,low temperature and Water stability.Under the contract: AR-SMA-13 has the best performance than AR-SMA-13 and SBS modified SMA-13, the performance of AR-AC-13 as well as SBS modified SMA-13.Overall, popularize and application the asphalt-rubber mixture is valuable.