摘要： 以特细砂泵送混凝土在甘肃省巴家嘴水库除险加固施工建设中的工程实践为背景，分析了特细砂泵送混凝土的特性及配合比等特点，介绍了特细砂泵送混凝土技术在施工中的应用经验。

Abstract: Combined with application of superfine sand pumping concrete in rehabilitation of Bajiazui reservoir, the paper analysed its performance and mix proportion. As well, construction experience was introduced.