硅粉作为沥青改性剂的室内试验研究

Study of asphalt modifier with silica fume by indoor experiment

以硅粉作为改性材料,将其掺入沥青中,制备改性沥青,通过硅粉改性沥青及其沥青混合料路用性能试验,表明硅粉可以改善沥青的高温和感温性能,能够提高沥青混合料的高温稳定性和水稳定性,同时,硅粉改性方法工艺简单,具有推广应用的良好前景。

In this paper silica fume is served as modified material, and is blended into asphalt to produce modified asphalt. The results of silica fume modified asphalt and its mixture pavement performance tests show that silica fume can improve asphalt＇s performance at high temperature and the temperature susceptibility, and can enhance high temperature stability and water stability of asphalt mixture. Meanwhile, because of simply modified method, silica fume has good application prospects.