建筑需要建造大量的混凝土结构,混凝土的配置需要大量的水泥、硅灰等,这就需要开山破石,从而消耗了大量的天然砂石资源,也有一些矿产资源在开发利用时产生了一系列的环境问题,例如铁尾矿。铁尾矿是经过铁矿筛选后的残渣,但是将其处理后,可以用做建筑用砂制成高性能混凝土,桥梁建筑就需要这种高性能混凝土建材。本文针对铁尾矿碎石在桥梁混凝土中的应用进行的分析研究。 Construction needs to build a large number of concrete structures, concrete configuration requires a lot of cement, silica fume, etc., which need to open up the mountain, thus consuming a lot of natural gravel resources, there are some mineral resources in the development and utilization produced a series of Environmental issues, such as iron tailings. Iron ore tailings are screened iron ore residue, but after its treatment, can be used to make high-performance concrete construction sand, the bridge building will need this high-performance concrete building materials. In this paper, iron tailings gravel in the application of bridge in the analysis.