基于矿料间隙率的预估最佳油石比经验计算法  

Experience Calculation for the Best Asphalt Aggregate Ratio Based on the Voids in the Mineral Aggregate(VMA)

作　　者：余继凤[1] 蔡华俊[1] 

机构地区：[1]湖北交通职业技术学院,武汉430079

出　　处：《建材世界》2009年第6期14-16,共3页The World of Building Materials

摘　　要：基于矿质混合料的级配,可用经验计算法预估矿料间隙率;基于矿料间隙率,可用经验计算法预估最佳油石比,将沥青混凝土设计为密实结构;用预估的最佳油石比做马歇尔试验,可验证沥青混凝土是否为骨架结构,若为空隙结构,则增加粗集料,重复以上步骤。经工程实践证明,基于矿料间隙率的预估最佳油石比经验计算法准确可靠,使上述级配优化方法具有可行性,为设计骨架密实结构的沥青混凝土提供捷径。The experience calculation based on gradation can be used to calculate the mineral aggregate （VMA）. Secondly the experience calculation based on the voids in the mineral aggregate （VMA） can be used to calculate the best asphalt aggregate ratio, while AC being dense structure, And then increase coarse aggregate, if it is tested not being skeleton structure by Marshall test with the asphalt aggregate ratio, and repeat the above steps for the evaluation of gradation. Experience calculation for the best asphalt aggregate ratio based on the voids in the mineral aggregate （VMA） was proved to be correct by the engineering projects. So it can be used for the evaluation of gradation and designing AC of skeleton and dense structure.

关 键 词：沥青混凝土 矿料间隙率 最佳油石比 经验计算法 

分 类 号：U414[交通运输工程—道路与铁道工程]