HF高强耐磨粉煤灰混凝土在黄河康扬水电站泄洪闸工程中的应用

Application of HF coal ash concrete in Kangyang hydropower station on the Yellow River

HF高强耐磨粉煤灰混凝土(简称HF混凝土),在康扬水电站泄洪闸底板及预应力闸墩部位的使用中,抗磨强度为同标号基准混凝土的1·57倍,和易性好,不易产生离析与泌水,施工工艺简单,在环境温差大,浇筑温度高而温度控制达不到设计要求的情况下,闸墩及边墙大体积HF混凝土也未出现裂缝,现场取样耐久性指标满足设计要求,抗压强度指标优良,表明HF混凝土是一种综合性能良好的水工抗冲耐磨护面材料。

The application of coal ash concrete with high strength and abrasion（HF concrete） in flood-relief gate in Kangyang hydropower station on the Yellow River indicates that the HF concrete is the advantageous strengthening material, in which the abrasion resistance strength is 1.57 times as much as the standard concrete with the same grade, and is of free mixing and low eductility and low water - secretion and is of simple construction. The HF concrete used in gate piers and edge walls seldom cracks under high temperature difference and high casting temperature without reaching the design standard, and the indexes of HF concrete both in durability and in compression strength reaches the design standard.