纤维用量对沥青混合料高温性能影响分析

Performance Analysis of Fiber Content on High Temperature of Asphalt Mixture

纤维材料作为混凝土的一种外加剂,可以提高混合料生产的稳定性和施工的和易性,同时可以增加成型路面的强度,特别是在SMA沥青路面中大量使用。而文中选择了高性能沥青路面superpave-13作为研究对象,通过添加不同掺量的木质纤维,在马歇尔试验方法基础上确定各自的最佳油石比。并进一步分析纤维掺量对各自最佳油石比中体积参数的影响,旨在为高性能沥青路面级配设计提供参考。

Fiber is used as a concrete admixture to improve the stability of mixture production and construction workabilityas well as to increase the forming strength of the pavement, which is widely used in SMA asphalt pavement.This article, selecting High performance of asphalt pavement superpave-13 as the study subject , to find out the optimumproportion of Oil and asphalt by adding different content of wood fiber based on Marshall test method, and furtheranalyzes the influence of fiber content on the optimum proportion on their respective volume parameters to providesome references for high performance gradation design of asphalt pavement.