【摘要】：為探討布敦巖瀝青(Buton Rock Asphalt,BRA)對(duì)基質(zhì)瀝青使用性能的影響,運(yùn)用Superpave瀝青結(jié)合料規(guī)范的有關(guān)試驗(yàn)評(píng)價(jià)體系,對(duì)不同摻量的BRA改性瀝青進(jìn)行實(shí)驗(yàn)室試驗(yàn).試驗(yàn)結(jié)果與分析表明:不同摻量BRA改性瀝青135℃時(shí)的黏度均小于3Pa·s,滿足規(guī)范要求,具有良好的施工特性;BRA改性瀝青復(fù)數(shù)模量指數(shù)減小,溫度敏感性降低;BRA改性瀝青高溫性能得到明顯改善,可用于夏季高溫地區(qū);與基質(zhì)瀝青相比,BRA改性瀝青的可使用溫度范圍擴(kuò)大,其在溫差較大地區(qū)更適用;BRA對(duì)改性瀝青低溫性能產(chǎn)生消極的影響,但這一點(diǎn)有必要從瀝青混合料、路面整體結(jié)構(gòu)方面對(duì)BRA改性瀝青低溫性能進(jìn)行綜合評(píng)價(jià),以利于BRA改性瀝青進(jìn)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，

本文編號(hào)：2222270