【摘要】 级配和油石比是沥青混合料设计的重要控制指标。级配和油石比的变异性影响着沥青路面的路用性能。结合高速公路工程实际,通过对沥青混合料级配和油石比的变异性及其对路用性能影响的研究,分析了级配和油石比变异性产生的原因及两者之间的相关性,进而提出了控制变异性的措施。更多还原

【Abstract】 The gradation and asphalt content are the important control parameters in the design of asphalt mixture. The variability of gradation and asphalt content influences the asphalt pavement performance. Combined with the expressway engineering practice, this paper studies the gradation and asphalt content variability and it’s influence on the performance of asphalt pavement. Then some relate reasons of the abnormities and the relationship between the gradation variability and asphalt content variability are analyzed. At last this paper proposed the control measures of reducing the gradation and asphalt content variability.更多还原