东坪水电站粉煤灰混凝土的抗渗性试验与应用

Impermeability Test of Concrete with Fly Ash & Its applicationin Dongping Hydropower Station

本试验采用添加粉煤灰和膨胀剂的双掺技术制备抗渗混凝土,试验中并分析了粉煤灰的性能,比较了不同掺量的粉煤灰对混凝土抗渗性能的影响。试验结果表明,普通硅酸盐水泥掺用膨胀剂和粉煤灰配制的混凝土其抗渗性能提高,且操作简易、施工方便、成本经济,具有较高的经济效益和环保效益,在工程施工应用中取得了较好的效果。

The test is making water-tight concrete using the technology of adding fly ash and expansion-producing admixture. In this test, we had analyzed properties of fly ash, compared influence of different quantities of fly ash on impermeability of concrete. The results of the test made known that impermeability of concrete from common sil- icate cement is improved after mixed fly ash and expansion-producing admixture. And using this kind of method to produce impermeability concrete has some advantages such as easy operation, convenient construction, low cost, as well as environment friend, and etc..