外掺纤维沥青混合料马歇尔试验研究

Research on Marshall Test for Additive Fiber Asphalt Mixtures

通过对外掺纤维沥青混合料的马歇尔试验,确定了外掺纤维沥青混合料的最佳油石比。并通过分析最佳油石比下纤维剂量和马歇尔试验各指标的关系,提出纤维的加入对马歇尔试验各指标的影响有一最佳纤维剂量,并且对比分析了两种纤维对马歇尔试验指标的影响,为更好地发挥纤维对沥青混合料的作用提供了依据。

The optimum asphalt contents （OAC） of additive fiber asphalt mixtures are determined through the Marshall test for this mixtures; and by analyzing the relationship between fiber contents and each index of Marshall test under OAC, it indicates that the influence of the addition of fibers on each index of Marshall test has a optimum fiber contents; moreover the influence of the two different fibers on the indexes of the Marshall test are analyzed and contrasted, which provides a basis for giving better the rein to the action of fibers on asphalt mixtures.