极端环境下破碎砾石沥青混凝土配合比设计

On proportional ratio design for gravel breakup asphalt concrete in extreme environment

对高速公路所处地区的环境、交通量、地材进行了分析,从地材加工控制,原材料技术指标的控制进行了论述,解决了光圆面过多,针、片含量过大,沥青粘附性不达标,矿料级配差等问题,达到了既满足规范要求,又节约资金、保护环境的效果。

The paper analyzes the environment,the traffic volume,and flooring of the expressway,indicates the process and control over the flooring,and the control over the technical indexes for the raw materials,solves some problems,such as,abundant round surfaces,large amount of needles and pieces,the unqualified asphalt adherence,and weak mineral aggregate gradation,so it meets the regulations＇ requirement,saves cost and protects the environment.