钒铁炉渣对矾土基自流浇注料性能的影响

发布时间：2018-05-21 13:36

  本文选题：钒铁炉渣 + 自流浇注料　； 参考：《硅酸盐通报》2017年02期

【摘要】：以矾土、钒铁炉渣、硅灰为主要原料,铝酸盐水泥为结合剂,制备了矾土基自流浇注料。测试了试样的常温抗折强度、耐压强度、烧后线变化率,利用X射线衍射(XRD)分析了烧后试样的物相组成,采用扫描电子显微镜(SEM)观察和分析了烧后试样的显微结构。结果表明:随着矾铁炉渣加入量的增加,110℃烘后试样强度逐渐降低,1350℃烧后试样强度先增大后减小,试样的体积密度略有降低,形成的镁铝尖晶石相逐渐增多,试样烧后线变化率由收缩转为膨胀;引入适量的矾铁炉渣,有益于矾土基浇注料烧结强度的提高,同时能够有效保持材料的体积稳定性,其最佳加入量为40%。
[Abstract]:Bauxite based self-flowing castable was prepared with bauxite, ferrovanadium slag, silica fume as main raw material and aluminate cement as binder. The flexural strength at room temperature, compressive strength and linear variation rate after firing were measured. The phase composition of the sample was analyzed by X-ray diffraction (XRD). The microstructure of the sample was observed and analyzed by scanning electron microscope (SEM). The results show that the strength of the samples decreases gradually after baking at 110 鈩，

本文编号：1919408