AC—16沥青混凝土上面层工程级配优化研究

Optimization of Engineering Grade Range of AC-16 Asphalt Concrete

柞小高速公路沥青路面上面层为AC-16沥青混凝土,从工程实际分析,公路工程沥青路面施工技术规范对AC—16沥青混凝土矿料级配范围的规定过于宽泛。在提出该地区沥青路面使用性能气候分区的基础上,对上面层两种AC—16典型级配形成的沥青混凝土的路用性能进行了试验研究,提出适用于该区高等级公路沥青路面的AC—16沥青混凝土的工程设计级配范围。

The AC-16 asphalt concrete is used for the upper layer in Zha-Xiao Expressway. According to the practical engineering need, the engineering techniques criteria of highway asphaltpavement, the engi-neering grade range of AC-16 asphalt concrete is too wide. The paper firstly chooses two kinds of typical grades, then does the road performance experiment under the two grades, finally proposes the engineering design grade range of AC-16 asphalt concrete which is applicable to the upper layer asphalt pavement in Zha-Xiao expressway region.