【作者】 黄冲； 黄绍龙； 黄修林； 丁庆军；

【Author】 HUANG Chong,HUANG Shao-long,HUANG Xiu-lin,Ding Qing-jun (Wuhan University of Technology,Wuhan,430070)

【机构】 武汉理工大学；

【摘要】 以废胶粉和重交沥青为主要原料,添加抗老化剂,稳定剂和增溶剂,运用湿法制得RBF型橡胶沥青。并掺配到不同新,旧沥青混合料比例组成的再生沥青混合料(RAM)中,测其水稳定性,高温抗车辙性,低温抗裂性等路用性能。试验结果表明,废橡胶粉掺量为15%时橡胶沥青性能最佳,RBF型橡胶沥青使再生沥青混合料的高温稳定性提高了1～2倍,低温抗裂性能提高了35%左右,水稳定性提高了10%左右。废料利用率在40%～60%时,再生沥青混合料具有较强的路用性能。更多还原

【Abstract】 RBF-asphalt-rubber was obtained by wet method,using waste rubber and asphalt as main raw materials,adding anti-aging agent,stabilizer and compatibility agent.Then blent the RBF into rehabilitation asphalt mixture which was consisted by different proportion of old and new asphalts pavement.Test the water stablility,high-temperature rutting resistance and low-temperature crack resistance of these new mixtures.The results showed that the rubber asphalt had the best performance with 15%of waste rubber powder.RBF enhanced the high-temperature stability of the RAM by 1 to 2 times,while the low-temperature anti-cracking performance increased about 35%and the stability of water increased by 10%. When recycle asphalt pavement utilization rate was 40～60%,the RAM had good road performance.更多还原