无砂大孔混凝土在台背回填中的应用

The Application of the Non-sand-and-Big-Hole Concrete to Road Backfill

以西林河大桥为工程背景,对无砂大孔混凝土的配合比进行了设计,对无砂大孔混凝土的密度、强度、透水性等三方面路用性能进行了试验研究,提出了行之有效的施工方案,并对无砂大孔混凝土在台背回填中的综合效益进行了分析。

With the project of the Xilin River Bridge as a practical example, the mix proportion of the non- sand-and-big-hole concrete is designed, with its density, intensity and dank capability related to its road use performance experimentally studied, and the effective construction approaches put forward, and the integrative benefit of the non-sand-and-big-hole concrete in road bed backfill analyzed.