中国钼业2026，Vol.50Issue(1)：42-48,7.DOI:10.13384/j.cnki.cmi.1006-2602.2026.01.004
某钒矿矿渣基胶凝材料研制与充填体强度试验研究
Development of slag-based cementitious material and the strength test of filling body in a vanadium mine
李桃鹏 1赖伟 2李涛 1朱斌 3祝鑫2
作者信息
- 1. 陕西五洲矿业股份有限公司,陕西 商洛 726000
- 2. 长沙矿山研究院有限责任公司,湖南 长沙 410012||金属矿山安全技术国家重点实验室,湖南 长沙 410012
- 3. 西北有色地质矿业集团有限公司,陕西 西安 710054
- 折叠
摘要
Abstract
To investigate the strength evolution of cemented paste backfill using the total tailings from a vanadium mine,this study eval-uated the reactivity of slag resources near the mine for preparing cementitious materials and conducted underground field trials for verifi-cation.Laboratory test results indicate that the total tailings of the mine are relatively coarse,with particles finer than 75 μm accounting for only29.9%,and have a high sulfur content,which adversely affects the strength development of the backfill.The slag exhibits a specific surface area of 431 m2/kg and a reactivity index of 95%,demonstrating high activity suitable for developing new cementitious materials.Accordingly,a novel slag-based P3 cementitious material was successfully developed.Under a solids concentration of 76%,core samples of the backfill prepared with the developed slag-based cementitious material showed a 347%increase in 14-day strength and a 313%increase in 28-day strength compared to cement-based backfill,indicating a significant enhancement effect.Underground field strength tests demonstrated that using this new cementitious material with a binder-to-tailings ratio of 1∶10 can replace the cement-based mix design with a ratio of 1∶4.This is expected to reduce the backfilling cost by approximately 52.5 RMB per cubic meter,providing crucial technical support for the low-cost construction and operation of the total tailings paste backfill system at this vanadium mine.关键词
钒矿渣/胶凝材料/活性指数/充填强度/低成本充填Key words
vanadium slag/cementitious material/activity index/filling strength/low-cost filling分类
矿业与冶金引用本文复制引用
李桃鹏,赖伟,李涛,朱斌,祝鑫..某钒矿矿渣基胶凝材料研制与充填体强度试验研究[J].中国钼业,2026,50(1):42-48,7.
