Road Performance of Asphalt Mixtures with Different Rubber Gradations
This paper compared the road performance of the asphalt mixtures with three different rubber gradations,AC-13,SMA-13,and AR-AC-13 by indoor tests,and verified the actual application effect of the SMA-13 rubber asphalt mixture.The results showed that compared with the ordinary AC-13 asphalt mixture,the performance of asphalt mixtures with other rubber gradations was improved to varying degrees,of which the high-temperature performance improvement was the most significant,improved by about 217％-337％,the low-temperature cracking resistance was improved by about 17.7％-89.3％,the water stability was improved by about 1.3％-19.5％,the fatigue resistance was improved by 30.6％-186.8％.In these three gradations,the SMA-13 had the optimal high-temperature and low-temperature performance and fatigue resistance,and its water stability was similar to that of AR-AC-13.From the engineering application,after adopting the SMA-13 rubber asphalt mixture in the upper layer of the pavement,the pavement had high evenness without rutting,cracking,loose,or other diseases,showing an excellent comprehensive road performance and long-term utilization effect.
rubber asphalt mixturegradationroad performanceindoor test
万方数据
维普
