万家寨高强抗冲磨混凝土试验研究

Research on high strength scouring and wearing resistance concrete for the Wanjiazhai Hydroproject

泄水建筑物的磨蚀问题是万家寨水利枢纽工程的主要技术问题之一。根据该工程抗冲磨混凝土的设计技术要求进行了抗冲磨混凝土的室内试验和现场试验，并对其经济性进行分析。提出采用３０～５０ｃｍ厚的混凝土抗磨层方案，其中细骨料采用天然砂，２０～４０ｍｍ粗骨料采用人工碎石，５～２０ｍｍ粗骨料采用铁矿石。

The abrasion of water release structure is one of the main technique problems on the Wanjiazhai Hydroproject.According to design requirements of scouring and wearing resistance concrete for the Wanjiazhai Hydroproject,test on laboratory and site are made,inaddition,the economic analysis is made.30￣50 cm concrete layer is thus put forward,in which fine aggregate used natural sand 20￣40 mm coarse aggregate used man made stone,5￣20 mm coarse aggregate used iron ore