关键词: 原材料试验, 参数选定, 混凝土配和比, 优化设计, 观音岩水电站

Abstract:

The pumped concrete was adopted in the spillway construction of Guanyinyan Hydropower Station, the proportion ratio of concrete must be well designed according to requirement of correlative regulations, design and construction equipment. In the test of ratio design, the amount of admixture, sand ratio, water consumption, ration of the aggregates were optimized and selected. The optimized water-binder ratio was determined by considering the relation curve of compression strength and water-binder ratio curve, designed strength, designed ultimate tensile and designed frost-resisting grade. The proportion ratio was given out by comprehensively taking account of all the parameters, which is easy in construction, reasonable in cost and reliable in quality.

Key words: test of raw material, selection of parameters, proportion ratio of concrete, optimized design, Guanyinyan Hydropower Station