Abstract In this study, a novel bitumen modification by aluminum oxide (Al2O3) nano particle was investigated to enhance the performance of bitumen and hot mix asphalt (HMA). Nano particles were mixed with the bitumen in three percentages to improve the rutting and fatigue performance. After that, rheological tests were conducted on nano particle modified bitumen to determine rheological properties and rutting (G*/sinδ) was determined after RTFOT aging and fatigue behavior (G* · sinδ) was determined after PAV aging. Moisture susceptibility of HMA samples prepared using Al2O3 modified bitumen was determined. As a result, optimum nano particle content was chosen and the best performance was obtained by 7% Al2O3.

中文翻译：

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纳米氧化铝颗粒对改性沥青和热拌沥青的影响

摘要 在这项研究中，研究了一种新型的氧化铝 (Al2O3) 纳米颗粒改性沥青以提高沥青和热拌沥青 (HMA) 的性能。纳米颗粒以 3% 的比例与沥青混合，以改善车辙和疲劳性能。之后，对纳米颗粒改性沥青进行流变测试以确定流变性能，并在RTFOT 老化后确定车辙（G*/sinδ），在PAV 老化后确定疲劳行为（G*·sinδ）。测定了使用 Al2O3 改性沥青制备的 HMA 样品的湿敏性。结果，选择了最佳纳米颗粒含量，7% Al2O3 获得了最佳性能。