Experimental Study on Mechanical and Road Performance of Steel Fiber Asphalt Mixture With Different Dosage
In order to investigate the road performance and mechanical properties of asphalt mixture with different steel fiber content,the paper mainly conducted experimental analysis of asphalt mixture performance under the condition of 0～4%steel fiber.The results show that when steel fiber is added to asphalt mixture,the splitting strength,flow value and Marshall stability are all improved,and the three indexes increase gradually with the increase of steel fiber content,but the growth rate of indexes will gradually slow down when the steel fiber content reaches a-bout 3%.The high temperature stability of asphalt mixture increased gradually during the process of steel fiber content increase,and the split-ting strength,water stability and low temperature performance showed a trend of increasing in the early stage and decreasing in the later stage.The asphalt mixture had the best road performance when the steel fiber content was 3%.
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