水工建筑物的过水部位(例如大坝泄水闸护壁、冲砂闸底孔等)经常受到高速夹砂石水流的冲刷和磨蚀,很容易被磨损以致造成破坏,往往采用高强混凝土代替普通混凝土。目前,尽管国内有不少科研单位仍在继续对聚合物混凝土、浸渍混凝土和钢纤维混凝土等高强混凝土进行研究,但真正在水工建设中使用的并不多。主要原因是这些混凝 The water passing parts of hydraulic structures (such as the dam drain retaining wall and the bottom hole of the sand flushing gate, etc.) are often scoured and abraded by high-speed sand-gravel flow. They are easily worn and cause damage. High-strength concrete is often used instead of ordinary concrete. . At present, although many research institutes in China continue to study high-strength concrete such as polymer concrete, impregnated concrete, and steel fiber reinforced concrete, they are not really used in hydraulic construction. The main reason is these coagulation