针对矿料级配变异性对沥青混合料所造成的不利影响,在原材料级配变异性分析的基础上,提出了一种沥青混合料目标配合比级配范围确定方法,该方法通过各档原材料大样本量筛分统计结果确定沥青混合料级配的合理波动范围,从材料设计上充分保证原材料生产加工变异性过大所引起的生产级配波动以及对混合料路用性能的影响,使材料变异性在配合比设计阶段便达到有效的控制状态。 Aiming at the adverse effect caused by gradation variability of asphalt mixture on asphalt mixture, a grading range determination method of asphalt mixture target blending ratio is proposed on the basis of the analysis of variability of raw material gradation. The method, Large sample size screening statistical results to determine the reasonable fluctuation range of asphalt mixture gradation, from the material design to fully ensure the variability of raw material production and processing caused by excessive fluctuations in the production gradation and road mix performance, the material Variability in the mix design stage to achieve effective control of the state.