白炭黑改性沥青及其混合料的路用性能研究

Study on Performance of Silica Modified Asphalt and Its Mixture

白炭黑是一种精细化工新产品,将其掺配在沥青中,可以做为沥青的改性剂。本文通过白炭黑改性沥青及其混合料路用性能试验,表明白炭黑能够改善沥青的高温、低温和抗老化性能;而且白炭黑改性沥青混合料能够显著提高其高温性能、低温性能、水稳定性和抗疲劳性能,具有良好的路用性能。白炭黑是一种很好的改性剂。

<Abstrcat>Silica is a kind of fine chemical product which can be served as a modifier of asphalt when blended into asphalt.The results of the performance experiment of SiO_2 modified asphalt and its mixture indicate that SiO_2 can improve performance of asphalt of high temperature,low temperature and anti-ageing asphalt as well,and SiO_2 modified asphalt mixture can distinctly enhance performance of high temperature,low temperature,water stability and anti-fatigue of mixture.So it is a perfect modifier in terms of road application performance.