本文通过采取增加粉煤灰用量、提高含气量及引入HPMC等措施提升混凝土的工作性能,增加水洗石屑在混凝土中的应用比例。当三种措施同时使用时,水洗石屑完全取代天然河砂后,混凝土依然可以保持良好的工作性能,从对比数据可以看出,使用水洗石屑完全取代天然河砂后,混凝土的工作性能与基准相当,各龄期的硬化混凝土力学性能都有所提高。 In this paper, by increasing the amount of fly ash, increasing gas content and the introduction of HPMC and other measures to improve the performance of concrete work, increasing the proportion of washed stone in the concrete application. When the three measures are used at the same time, the concrete can still maintain good working performance after the washed stone chips completely replace the natural river sand. According to the comparison data, it can be seen that the work performance of the concrete Benchmarks, hardened concrete of all ages have improved the mechanical properties.