马渡河水电站碾压混凝土配合比设计试验分析

Experimental analysis of RCC mix ratio in Madu River Hydropower Station

大坝混凝土配合比设计是工程质量控制的重要环节,马渡河水电站混凝土配合比设计骨料采用二迭系下统栖霞组岩石,此种岩性呈深灰色,间或夹有马鞍组岩石,呈黑色,质地较为松散及破碎。通过对二迭系下统栖霞组岩石骨料进行碾压混凝土配合比进行试验,研究分析了该骨料混凝土体积变形及热物理学性能。结果表明:试验结果可为马渡河工程混凝土配合比设计提供参考。

The concrete mix design of the dam is an important link in the quality control of the project.The concrete mix design of Madu River Hydropower Station adopts the rocks of Qixia Formation under the second system.This lithology is dark gray,and the rock is black,and the texture is loose and broken.In this paper,a comprehensive experimental study and analysis of the concrete performance and mix ratio,and provides the appropriate concrete mix ratio for madadu River project through the test.Now the test results of RCC mix ratio,concrete volume deformation and thermophysical performance test results are sorted out to provide reference.