辽河特细砂混凝土正交试验研究

Research on Orthogonal Experiment of Superfine Sand Concrete in Liao River

针对辽河中下游特细砂产量大、亟待开发利用的现状,展开辽河特细砂及特细砂混凝土相关研究。以辽河特细砂配制混凝土为研究对象,通过正交试验探讨辽河特细砂混凝土的配合比。正交试验结果表明:C25特细砂混凝土的最优配合比为水灰比0.55、砂率25%、减水剂掺量0.8%。

The research is about superfine sand and superfine sand concrete according to the status of big yield of superfine sand in middle and downstream area in Liao River and demanding prompt exploitation. The article used the concrete made of superfine sand of Liao River as the research object, discussed the mixing proportion of superfine sand concrete of Liao River by orthogonal experiment. The result shows that the optimal mixing proportion of C25 superfine sand concrete is water cement ratio 0.55、sand ratio 25% and the content of water reducer 0.8%.