Analysis of High Temperature Stability and Water Stability of SMA Mixture using Orthogonal Experiments

نویسندگان

  • Dang Van Thanh
  • Cheng Pei Feng
  • Hai Long
چکیده

The influence of three material factors, namely asphalt-aggregate ratio, fiber-aggregate ratio and mineral filler–aggregate ratio (filler–aggregate ratio) on Marshall indexes of the lignin fiber SMA mixture are investigated in this study. To achieve this goal, orthogonal experiment design and implementation of Marshall stability test, residential stability test and rutting test were used to analyze the material factors on the high temperature stability and water stability of the established SMA mixture. The results show that these three factors have prominent influences on Marshall indexes of the SMA mixture. The optimum asphalt-aggregate ratio, fiber-aggregate ratio and mineral filler–aggregate ratio values were found to be 6.1%, 0.31% and 10%, repectively. With these ratios, the high temperature stability and water stability of the lignin fiber SMA-16 are optimal.

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تاریخ انتشار 2012