特细砂在混凝土中的应用研究

Application research of super-fine sand in concrete

采用特细砂应用于混凝土中,以强度为指标寻求最佳的混凝土配合比,在通过对砂粒径、砂含泥量、砂率、石子以及对试验情况的分析,得出特细砂中粘土和淤泥含量及性质对其强度有重要影响,掺入一定量的细石及外加剂有助于改善特细砂混凝土的强度和工作性能。

The paper applies super-fine sand in concrete, seeks for optimal concrete mixing proportion with strength as indicator, analyzes sand diameter, muddy quantity contained in sand, sand ratio, stone and experimental conditions, and draws some conclusions that clay and sludge content in super-fine content and their qualities greatly influence their strength, mixing certain amount of fine sand and admixture will be good for improving the strength and working performance of super-fine sand concrete.