SMA中空隙率的计算方法

鞠英明

（上海南汇区公路管理署）

摘  要：空隙率是SMA配合比设计中一个非常重要的控制指标，各档集料密度的取值和是否考虑纤维素对空隙率的计算有着很大的影响，通过四种不同的情况，分析了在计算过程中应该考虑到的几个因素，同时提出在工程实践中应该统一计算方法。

关键词： 空隙率； 纤维素； SMA； 目标配合比

                                                 Calculation Method of the Void Ratio in SMA

                                                                                             JU Ying-ming

Abstract: Void ratio is a very important controlling factor in the mixture design of SMA. Fiber and  the density of aggregates have a big influence on the calculation of void ratio. This paper analyses a few factors which should be considered in the calculation of void ration. Moreover, it puts forward the common void ratio calculation of SMA.

Key Words: void ratio; fiber ;  SMA;  mixture ratio