黄金尾矿制备水泥和混凝土的研究进展

摘要/Abstract

摘要： 黄金生产具有高价值、高成本、高污染、高排放的特点,黄金产业的绿色化对可持续发展具有重要意义。由于黄金矿石的含矿量低,生产过程中会产生大量尾矿,这些尾矿大量占用土地,造成巨大的环境负担,因此,黄金尾矿的资源化利用具有重要意义。黄金尾矿中富含硅元素,尾矿颗粒细小且具有潜在的火山灰活性,利用黄金尾矿生产水泥混凝土是实现尾矿建材化利用的理想途径。本文从黄金尾矿的物理-化学特性、颗粒特征和宏观颗粒群性质等方面出发,分析了黄金尾矿用于制备水泥熟料、砂浆及混凝土制品的可能性,总结了国内外利用黄金尾矿生产水泥、砂浆混凝土的研究进展,旨在为黄金尾矿的建材资源化高效利用和相关研究提供借鉴和参考。

关键词: 黄金尾矿, 水泥基材料, 水泥熟料, 骨料, 矿物掺合料, 建材化利用

Abstract: Gold production has the characteristics of high value, high cost, high pollution and high emission. The greening of the gold industry is of great significance to sustainable development. The ore content of gold ore is low, and a large number of tailings will be produced during the production process. These tailings occupy a lot of land and cause huge environmental burdens. Therefore, the resource utilization of gold tailings is of great significance. Gold tailings are rich in silicon, and the tailings have fine particles and potential pozzolanic activity. Using gold tailings to produce cement concrete is an ideal way to realize the utilization of tailings as building materials. This paper theoretically analyzes the possibility of using gold tailings to prepare cement clinker, mortar and concrete products from the aspects of physical-chemical properties, particle characteristics and macroscopic particle group properties of gold tailings, and summarizes the use of gold at home and abroad. The research progress of tailings production of cement and mortar concrete aims to provide reference for the efficient utilization of gold tailings as building materials resources and related research.

Key words: gold tailing, cement-based material, cement clinker, aggregate, mineral admixture, building material utilization

中图分类号:

TU528.45

张啸, 王璜琪, 王栋民. 黄金尾矿制备水泥和混凝土的研究进展[J]. 硅酸盐通报, 2022, 41(9): 3121-2128.

ZHANG Xiao, WANG Huangqi, WANG Dongmin. Research Progress on Preparation of Cement and Concrete from Gold Tailings[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2022, 41(9): 3121-2128.

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