| 333 | 1 | 29 |
| 下载次数 | 被引频次 | 阅读次数 |
目的:为了有效解决金尾矿的处理问题以及缓解砂石资源短缺的现状，探索利用金尾矿替代部分天然砂制备金尾矿混凝土的可能性。方法:通过立方体抗压强度测试，结合正交试验方法，深入分析了水胶比、金尾矿代替率、砂率以及粉煤灰掺量这四个因素对金尾矿混凝土28 d抗压强度的影响。运用极差和方差法进行了系统分析，确定了各因素在影响金尾矿混凝土28 d抗压强度方面的权重；此外还基于正交试验的数据，建立了金尾矿混凝土抗压强度的多元回归方程。结果:研究结果表明，水胶比对金尾矿混凝土抗压强度影响最为显著，其次是金尾矿代替率、粉煤灰掺量、砂率。建立的回归方程R2为0.872,可在一定程度上预测其抗压强度。意义:研究结果可为金尾矿资源的综合利用提供一定的参考价值。
Abstract：Purpose:To effectively address the disposal issues of gold tailings and alleviate the shortage of sandstone resources, this study investigated the potential of utilizing gold tailings as a partial replacement for natural sand in the production of gold tailings concrete.Method:Through a series of cube compressive strength tests and orthogonal experimental methods, this research conducted a comprehensive analysis of the impacts of four factors: water-binder ratio, gold tailings substitution rate, sand ratio, and fly ash content, on the 28-day compressive strength of gold tailings concrete.The systematic analysis was performed using range and variance analysis methods, which determined the relative importance of each factor in influencing the 28-day compressive strength of the concrete.Furthermore, a multiple regression equation was established for predicting the compressive strength of gold tailings concrete based on the orthogonal experimental data.Conclusion:The results indicated that the water-binder ratio had the most significant effect on the compressive strength, followed by the gold tailings substitution rate, fly ash content, and sand ratio.The regression equation, with an R2 value of 0.872,can predict the compressive strength to a considerable degree.Significance:The research results can provide some reference value for the comprehensive utilization of gold tailings resources.
[1] 丁全利，胡容波.《中国矿产资源报告(2021)》发布[N].中国自然资源报，2021-10-22:001.DING Quanli,HU Rongbo.China mineral resources report(2021)was published[N].China Natural Resources News,2021-10-22:001.
[2] 杨玮，常东，龙涛，等.金尾矿资源化利用研究进展[J].矿产保护与利用，2023,43(3):168-178.YANG Wei,CHANG Dong,LONG Tao,et al.Research progress on resource utilization of gold tailings[J].Mineral Protection and Utilization,2023,43(3):168-178.
[3] 孟文文，李鹏.黄金行业尾矿处置政策与综合利用实践[J].黄金科学技术，2023,31(6):1023-1034.MENG Wenwen,LI Peng.Tailings disposal policy and comprehensive utilization practice in gold industry[J].Gold Science and Technology,2023,31(6):1023-1034.
[4] 孙旭东，刘晓敏，龚裕，等.黄金尾矿建材化利用的研究现状及展望[J].金属矿山，2020,49(3):12-22.SUN Xudong,LIU Xiaomin,GONG Yu,et al.Research status and prospect of building materials utilization of gold tailings[J].Metal Mine,2020,49(3):12-22.
[5] 王锦，李德先，李胜荣，等.基于冀东金厂峪金矿尾矿综合利用的矿物特征[J].地质通报，2022,41(7):1249-1257.WANG Jin,LI Dexian,LI Shengrong,et al.Based on the mineral characteristics of comprehensive utilization of Jinchangyu gold mine tailings in eastern Hebei[J].Geological Bulletin,2022,41(7):1249-1257.
[6] 梁国海，齐志超，吴健，等.黄金尾矿用于生产烧结墙体砖试验研究[J].有色金属(矿山部分),2018,70(6):16-19.LIANG Guohai,QI Zhichao,WU Jian,et al.The experimental study on producing sintered wall bricks with gold tailings[J].Nonferrous Metals(Mining Section),2018,70(6):16-19..
[7] 朱建平，乐红志，朱俊阁，等.黄金尾矿材料及环境属性研究[J].硅酸盐通报，2021,40(10):3457-3463.ZHU Jianping,LE Hongzhi,ZHU Junge,et al.Study on gold tailings materials and environmental properties[J].Silicate Bulletin,2021,40(10):3457-3463.
[8] 张振国，王月，陈军典，等.铁尾矿资源化利用现状与发展策略[J].科技导报，2024,42(2):90-103.ZHANG Zhenguo,WANG Yue,CHEN Jundian,et al.Present situation and development strategy of iron tailings resource utilization[J].Science and Technology Herald,2024,42(2):90-103.
[9] 李亚民，黄凌云，李汶交，等.有色金属矿山尾矿资源化利用研究进展[J].矿冶，2023,32(4):93-103.LI Yamin,HUANG Lingyun,LI Wenjiao,et al.Research progress of tailings resource utilization in nonferrous metal mines[J].Mining and Metallurgy,2023,32(4):93-103.
[10] YANG F,LIANG X,ZHU Y,et al.Preparation of environmentally friendly and energy-saving autoclaved aerated concrete using gold tailings[J].Journal of New Materials for Electrochemical Systems,2019,22(3):159-164.
[11] LI Q,LI K,NI W,et al.Experimental study on zhaoyuan gold tailings-based aerated concrete[J].IOP Conference Series:Earth and Environmental Science,2020,567(1):012005.
[12] 杨琼，李悦.复掺铁尾矿和粉煤灰掺量对混凝土性能和微观结构性的影响[J].矿产综合利用，2024,45(2):67-74.YANG Qiong,LI Yue.Influence of iron tailings and fly ash content on concrete performance and microstructure[J].Comprehensive Utilization of Minerals,2024,45(2):67-74.
[13] 陶亚平，赖天文.铁尾矿砂再生混凝土的力学及耐久性能研究[J].功能材料，2023,54(3):3143-3148.TAO Yaping,LAI Tianwen.Study on mechanics and durability of recycled concrete with iron tailings[J].Functional Materials,2023,54(3):3143-3148.
基本信息:
中图分类号:TD926.4;TU528
引用信息:
[1]赵津,刘心中,马树森,等.基于正交试验的金尾矿混凝土配合比设计研究[J].有色金属(矿山部分),2024,76(05):135-139+148.
基金信息:
国家重点研发计划项目(2019YFC1904103)
2024-07-16
2024-07-16
2024-07-16