中文摘要：

以《民用机场沥青混凝土道面设计规范》（MH-5010—1999）中AC-20Ⅰ型级配为基础,参考《公路沥青路面施工技术规范》（JTG F40—2004）,利用分形理论及贝雷法优化其级配范围,并进一步对比研究优化级配与机场规范要求级配混合料的路用性能。探讨符合机场道面使用特点的沥青混合料级配优化方法,以供机场道面施工时使用。研究结果表明：优化级配沥青混合料的路用性能符合规范要求,其高温、水稳性能优于规范要求级配。

英文摘要：

This paper investigates the AC-20 asphalt mixture based on ＂Specifications for asphalt concrete Pavement construction of civil airports＂ and put forward optimized aggregate gradation range by fractal geometry theory and bailey method,contrastive researches pavement performance of asphalt mixture between optimized aggregate gradation and standard aggregate gradation.The research indicates that the optimization of gradation consistent with the use of airport pavement and can be applied to airport pavement.The results shows that optimized aggregate gradation asphalt concrete has a better high temperature and water stability performance than standard aggregate gradation asphalt mixture.