尾矿制备辅助胶凝材料的潜能与机制评述

Review on Potential and Mechanism of Supplementary Cementitious Materials Prepared by Tailings

将尾矿高效活化制备辅助胶凝材料,对解决矿山环境污染和发展低碳胶凝材料有深远意义.本文归纳了尾矿的矿物属性、活化工艺、活化作用机制与活化辅助胶凝材料性能之间的关系,从矿物学角度全面阐述了尾矿通过物理、化学和表面化学作用产生活性和胶凝性的基本规律,探讨和展望了一种依据尾矿属性分析评价尾矿制备辅助胶凝材料的新思路,为尾矿制备辅助胶凝材料提供了理论和方法支持.

Efficient activation of tailings for the production of supplementary cementitious materials(SCM)is of grest significance for solving the problem of mine environmental pollution and developing low‑carbon cementitious materials.The relationship between mineralogical attribute,activation method,activation mechanism and performance of SCM prepared by tailings were summarized and evaluated.The activation rule and mechanism of minerals were comprehensively reviewed in a mineralogy viewpoint by chemistry,physics,and surface chemistry.Additionally,a new method was provided to evaluate SCM from tailing based on attribute analysis of tailiings,providing theoretical and methodological support for the preparation of SCM from tailings.