Concrete Construction and Quality Control of Letan Hydropower Station

The main body of Letan hydropower station is composed of concrete structure.All of the construction participants design the concrete raw material and control the quality carefully.The total quantity of the gelling material is smaller than the Three Gorges project after optimizing mix proportion.In the implementation,adjust the mix proportion timely according to the raw material change,strictly control the concrete production craft,pay attention to the template design,control the quality of manufacture and installation,and use high performance concrete to make the normal concrete meet the requests of design and regulation.The manufacture and management level is high.Each sampling performance to the core boring of roller compacted concrete reaches or surpasses the design standard and the quality of appearance reaches fine level in the same field.