Mechanochemical activation of iron ore tailings and preparation of high-strength construction materials

Miyun iron ore tailings in Beijing were activated by a mechanochemical method. The influence of mechanochemical effect on the activation of the iron ore tailings was analyzed by means of grain size analysis, X-ray diffraction (XRD), scanning electron microscope (SEM) and infrared radiation (IR) technologies. The iron ore tailings as raw materials were used to produce high-strength construction materials. It is shown that the compressive strength of the produced construction materials in which the overall content of the iron ore tailings is 70% can reach up to 89MPa.