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本文选择三种改性沥青采用相同的油石比5.0%与各自最佳油石比时的混合料性能进行比较,研究表明:SBS改性沥青不同,最佳油石比不同,若没有根据材料的变化调整配合比,可能导致混合料性能总体变差,甚至导致个别指标如孔隙率、饱和度出现不符合规定的情况。因此,在公路沥青路面工程中应采取一定的措施保证SBS改性沥青材料性能稳定。
In this paper, three kinds of modified asphalt were selected to compare the performance of the mixture with the same ratio of whetstone to 5.0% and the best ratio of whetstone respectively. The results show that the optimum whetstone ratio is different if the SBS modified asphalt is different, Mixing ratio, may lead to the overall deterioration of the mixture performance, and even lead to some indicators such as porosity, saturation does not meet the requirements of the situation. Therefore, certain measures should be taken in highway asphalt pavement to ensure the stable performance of SBS modified asphalt material.