Ultra-high performance concrete with metal mine tailings and its properties: a review

IF 4.7 Q2 MATERIALS SCIENCE, BIOMATERIALS ACS Applied Bio Materials Pub Date : 2024-05-09 DOI:10.1515/corrrev-2023-0145

Qiuming Li, Xiaoxin Feng, Yue Liu, Yuan Jia, Gang Liu, Yuantao Xie

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Abstract

Metal mine tailings (MMT) are a kind of industrial solid waste, with an increasing accumulation year by year, which has seriously damaged the ecological environment. Incorporating MMT in ultra-high performance concrete (UHPC) is an effective means to achieve green sustainable development, which can not only make wastes be resources and prevent pollution but also save raw material costs and reduce energy consumption. However, metal mine tailings contain complex and diverse metal oxides and other chemical substance and even contain certain radioactive elements and heavy metal ions. These factors can affect the corrosion resistance of UHPC, accelerate its aging and damage, and in addition may have serious impacts on the environment and human health. This paper summarizes the material properties of MMT and its application in UHPC; analyzes the effects of MMT as powder or fine aggregate on the workability, mechanical properties, durability, and leaching toxicity of UHPC; and elaborates the hydration products, interfacial transition zone, and pore structure of UHPC incorporating MMT (MMT-UHPC). Based on previous research results, the relationship between flowability, flexural strength, porosity, and compressive strength of MMT-UHPC is established.

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含金属矿尾矿的超高性能混凝土及其性能：综述

金属矿尾矿（MMT）是一种工业固体废弃物，其堆积量逐年增加，严重破坏了生态环境。在超高性能混凝土（UHPC）中掺入金属尾矿是实现绿色可持续发展的有效手段，不仅可以使废弃物资源化，防止污染，还可以节约原材料成本，降低能源消耗。然而，金属矿山尾矿中含有复杂多样的金属氧化物和其他化学物质，甚至含有某些放射性元素和重金属离子。这些因素会影响超高性能混凝土的耐腐蚀性，加速其老化和损坏，此外还可能对环境和人类健康造成严重影响。本文总结了 MMT 的材料特性及其在超高性能混凝土中的应用，分析了 MMT 作为粉末或细集料对超高性能混凝土的工作性、力学性能、耐久性和浸出毒性的影响，并阐述了掺入 MMT 的超高性能混凝土（MMT-UHPC）的水化产物、界面过渡区和孔隙结构。在前人研究成果的基础上，建立了 MMT-UHPC 的流动性、抗弯强度、孔隙率和抗压强度之间的关系。

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来源期刊

ACS Applied Bio Materials Chemistry-Chemistry (all)

CiteScore

9.40

自引率

2.10%

发文量

464

期刊介绍： ACS Applied Bio Materials is an interdisciplinary journal publishing original research covering all aspects of biomaterials and biointerfaces including and beyond the traditional biosensing, biomedical and therapeutic applications. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrates knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important bio applications. The journal is specifically interested in work that addresses the relationship between structure and function and assesses the stability and degradation of materials under relevant environmental and biological conditions.