沥青混合料马歇尔设计方法适用性分析

通过普通沥青混合料（AC），SMA和Superpave三种沥青混合料的马歇尔试验，分析了马歇尔密度和稳定度随沥青用量的变化规律，试验结果表明传统的马歇尔设计方法仅适用于连续级配悬浮密实型沥青混合料；SMA可以采用马歇尔法设计，但必须配合其他方法进行验证Superpave混合料则不宜用马歇尔方法进行设计.

Applicability of Marshall designing methods on asphalt mixture

Through Marshall experiments on AC,SMA and Superpave, this article analyzes the changing rules of Marshall density and stability according to amount of the asphalt.The result shows that traditional Marshall designing methods could only be used in continuous gradation of suspended-compacting type of asphalt mixture,SMA could designed by using Marshall methods,but must be checked by other methods,and Superpave mixture is not fixed with Marshall methods at all.