Study on rutting resistance of asphalt pavement modified with nano SiO₂
纳米SiO₂改性沥青路面抗车辙性能研究

摘要

随着交通量的不断增加，沥青路面的抗车辙性能成为影响道路使用寿命和安全性的关键因素之一。为了改善这一性能，纳米SiO₂改性沥青逐渐得到广泛应用。本研究探讨了纳米SiO₂对沥青路面抗车辙性能的影响，实验结果表明，纳米SiO₂能够有效提高沥青的高温稳定性，显著降低车辙的产生。通过对不同掺量的纳米SiO₂改性沥青的实验分析，研究发现适量添加纳米SiO₂不仅增强了沥青的抗车辙性能，还改善了其流变性能和热稳定性，为改性沥青的应用提供了新的思路。

Abstract

With the continuous increase in traffic volume, the rutting resistance of asphalt pavements has become one of the key factors affecting road service life and safety. To improve this performance, nano-SiO₂-modified asphalt has gradually gained widespread application. This study investigates the impact of nano-SiO₂ on asphalt pavement rutting resistance. Experimental results show that nano-SiO₂ can effectively enhance asphalt's high-temperature stability and significantly reduce rutting formation. Through experimental analysis of nano-SiO₂-modified asphalt with different addition rates, the study found that appropriate nano-SiO₂ addition not only improves rutting resistance but also enhances its rheological properties and thermal stability, providing new insights for the application of modified asphalt.