SMA混合料配合比设计与应用

Mix design of stone matrix asphalt(SMA) mixture and its application

针对我国SMA沥青混合料配合比设计中的有关问题,结合河北省张石高速公路路面工程面层试验段工程实例,对原材料进行优选并采用不同试验方案和试验方法,最终确定改性沥青混合料目标配合比及技术参数。

In the view of problems in the mix design for stone matrix asphalt（SMA） mixture,the test results of raw materials for surface course were examined,in combination with the construction practice of pavement test section,Zhangjiakou to Shijiazhuang Expressway in Hebei Province,with selecting the raw materials and using the different test plans and methods.And finally,the target mix proportion and technical parameters for modified asphalt mixture were determined.