The paper introduced the application of dense modified bitumen mixture to Fenliu Expressway,mainly discussed technical index of modified bitumen and the gradation scope of dense bitumen mixture etc.

• 详细介绍了汾柳高速公路密级配改性沥青混合料的使用情况,重点介绍了改性沥青的技术指标和密级配沥青混合料级配范围的确定,另外还对施工工艺进行了阐述。