利用商洛钼尾矿制备混凝土

发布时间：2018-04-13 21:49

  本文选题：钼尾矿 + 胶凝材料　； 参考：《矿产综合利用》2017年04期

【摘要】：以钼尾矿、矿渣、熟料和石膏为原料制备胶凝材料,研究了钼尾矿在胶凝材料中的掺量、减水剂掺量、养护工艺对胶砂试块性能的影响,并通过XRD和SEM-EDS对水化产物进行了深入研究。结果表明,当钼尾矿在胶凝材料中掺量为20%、减水剂掺量为0.4%、采用60℃湿热养护所制备的钼尾矿胶砂试块力学性能最好,28 d抗压强度可以达到73.2 MPa。利用钼尾矿制备的胶凝材料的水化产物以钙矾石和C-S-H凝胶为主,二者的相互交织促进了胶砂试块强度的增长。
[Abstract]:The cementitious material was prepared from molybdenum tailings, slag, clinker and gypsum. The effects of molybdenum tailings on the properties of cement sand were studied.The hydration products were studied by XRD and SEM-EDS.The results show that when the amount of molybdenum tailings in the cementing material is 20 and the amount of water reducer is 0.4, the mechanical properties of molybdenum tailings mortar prepared by hydrothermal curing at 60 鈩，

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