基于铁尾矿的低碳混凝土:资源化路径、性能调控与环境影响综述#br#

金属矿山 ›› 2026, Vol. 55 ›› Issue (2): 276-289.

基于铁尾矿的低碳混凝土:资源化路径、性能调控与环境影响综述#br#

严金阳^1,2,3　冯　博^1,2,3　刘军华⁴　李志强⁴　陈　钰⁴

1. 江西省矿区环境污染预防与控制重点实验室,江西赣州 341000;
2. 江西省战略金属矿产资源低碳加工与利用重点实验室,江西赣州 341000;
3. 江西理工大学矿业工程学院,江西赣州 341000;4. 新疆葱岭能源有限公司,新疆克孜勒苏柯尔克孜自治州 845550

出版日期:2026-02-15 发布日期:2026-03-04
通讯作者: 冯　博(1986—),男,教授,博士,博士研究生导师。
作者简介:严金阳(2000—),男,硕士研究生。
基金资助:
江西省科技对口支援项目(编号:20250BFA99007);新疆重点研发计划项目(编号:2024B04042-3)。

Low-carbon Concrete Based on Iron Tailings:Review of Resource Path,Performance Regulation and Environmental Impact#br#

YAN Jinyang^1,2,3　FENG Bo^1,2,3　LIU Junhua⁴　LI Zhiqiang⁴　CHEN Yu⁴

1. Jiangxi Key Laboratory of Mining Site Environmental Pollution Prevention and Control,Ganzhou 341000,China;
2. Jiangxi Key Laboratory of Low-Carbon Processing and Utilization of Strategic Metal Mineral Resources,Ganzhou 341000,China;
3. School of Mining Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,China;
4. Xinjiang Congling Energy Co. ,Ltd. ,Kizilsu Kirghiz Autonomous Prefecture 845550,China

Online:2026-02-15 Published:2026-03-04

摘要/Abstract

摘要： 钢铁工业固废铁尾矿(IOT)的大宗资源化利用对于混凝土行业的可持续发展至关重要。本文系统综述
了IOT 作为混凝土原材料(细骨料与胶凝材料)的综合应用潜力、性能影响机理及环境效益。分析表明,IOT 的物理性
质符合建筑用砂标准,其不规则的颗粒形貌有助于增强界面机械咬合;化学组成以SiO₂(27. 65% ~76. 83%)和Fe2O3
(2. 89%~46. 11%)为主,经Si-Ca-(Al+Fe)三元图分析,大部分样品具备替代水泥的潜力。作为细骨料,IOT 在20%
~40%的替代率下可优化超高性能混凝土(UHPC)、喷射混凝土等体系的性能;作为胶凝材料,需通过机械或化学耦合
活化提升其火山灰活性,活化后强度活性指数可达72. 7%以上,满足辅助胶凝材料要求。生命周期评估证实,IOT 的
应用可降低混凝土15%~40%的碳排放与29%的资源消耗;同时,其在致密水泥基体中的重金属浸出浓度远低于国家
标准限值,环境风险可控。本综述为IOT 在低碳混凝土中的规模化应用提供了系统的理论与技术依据。

关键词: 铁尾矿　混凝土　骨料　胶凝材料　活化　环境影响

Abstract: The large-scale resource utilization of solid waste iron tailings (IOT) in the iron and steel industry is crucial
for the sustainable development of the concrete industry. This paper provides a systematic review of the comprehensive application
potential,performance modification mechanisms,and environmental benefits of using IOT as a raw material (fine aggregate
and cementitious material) in concrete. Analysis shows that the physical properties of IOT comply with standards for construction
sand,and its irregular particle morphology enhances mechanical interlocking at the interface. Chemically,IOT is primarily
composed of SiO2 (27. 65%~76. 83%) and Fe2O3 (2. 89%~46. 11%). Ternary diagram analysis of Si-Ca-(Al+Fe) indicates
that most samples possess the potential to replace cement. As a fine aggregate,IOT at replacement rates of 20% to 40% can optimize
the performance of various concrete systems,such as ultra-high performance concrete (UHPC) and sprayed concrete. As
a cementitious material,mechanical or chemical coupling activation is required to enhance its pozzolanic activity. After activation,
its strength activity index can exceed 72. 7%,meeting the requirements for supplementary cementitious materials. Life cycle
assessment confirms that the application of IOT can reduce the carbon footprint of concrete by 15% to 40% and resource
consumption by 29%. Furthermore,the leaching concentrations of heavy metals from IOT within the dense cementitious matrix
are significantly below the limits set by national standards,indicating controllable environmental risk. This review provides a systematic theoretical and technical basis for the large-scale application of IOT in low-carbon concrete.

Key words: iron ore tailings (IOT),concrete,aggregate,cementitious material,activation,environmental impact

中图分类号:

X753

严金阳, 　冯　博, 　刘军华　李志强　陈　钰. 基于铁尾矿的低碳混凝土:资源化路径、性能调控与环境影响综述#br#[J]. 金属矿山, 2026, 55(2): 276-289.

YAN Jinyang, 　FENG Bo, 　LIU Junhua　LI Zhiqiang　CHEN Yu. Low-carbon Concrete Based on Iron Tailings:Review of Resource Path,Performance Regulation and Environmental Impact#br#[J]. Metal Mine, 2026, 55(2): 276-289.

扫码分享