布敦岩沥青改性沥青Superpave使用性能研究
发布时间：2018-09-04 13:42
【摘要】：为探讨布敦岩沥青(Buton Rock Asphalt,BRA)对基质沥青使用性能的影响,运用Superpave沥青结合料规范的有关试验评价体系,对不同掺量的BRA改性沥青进行实验室试验.试验结果与分析表明:不同掺量BRA改性沥青135℃时的黏度均小于3Pa·s,满足规范要求,具有良好的施工特性;BRA改性沥青复数模量指数减小,温度敏感性降低;BRA改性沥青高温性能得到明显改善,可用于夏季高温地区;与基质沥青相比,BRA改性沥青的可使用温度范围扩大,其在温差较大地区更适用;BRA对改性沥青低温性能产生消极的影响,但这一点有必要从沥青混合料、路面整体结构方面对BRA改性沥青低温性能进行综合评价,以利于BRA改性沥青进一步的研究和利用.
[Abstract]:In order to study the effect of Budun Rock Asphalt (Buton Rock Asphalt,BRA) on the performance of matrix asphalt, the laboratory test of BRA modified asphalt with different content was carried out by using the relevant test and evaluation system of Superpave asphalt binder specification. The experimental results and analysis show that the viscosity of asphalt modified by BRA is lower than that of 3Pa s at 135 鈩，
本文编号：2222270
[Abstract]:In order to study the effect of Budun Rock Asphalt (Buton Rock Asphalt,BRA) on the performance of matrix asphalt, the laboratory test of BRA modified asphalt with different content was carried out by using the relevant test and evaluation system of Superpave asphalt binder specification. The experimental results and analysis show that the viscosity of asphalt modified by BRA is lower than that of 3Pa s at 135 鈩，
本文编号：2222270
本文链接：https://www.wllwen.com/kejilunwen/jiaotonggongchenglunwen/2222270.html
