At present designers take little account of the different requirements of pavement performance when determining the adding ratio of lignin fibers in Chinese SMA mixture. Basing on the high temperature performance the article studied the optimum fiber content of SMA-13 mixture through comparative tests of performance. First aiming at SMA-13 mixture with different fiber contents, the mix proportions were designed and asphalt contents were verified. Then the effect of fiber content on high temperature performance was indicated through three kinds of interrelated performance tests. At last other p...
