— Utilization of iron ore tailings as fine aggregate in ultra-high performance concrete Constr. Build. Mater., 50 ( 2014 ), pp. 540 - 548, 10.1016/j.conbuildmat.2013.10.019
— Utilization of iron ore tailings as fine aggregate in ultra-high performance concrete. Constr. Build. Mater., 50 (2014), pp. 540-548. View PDF View article View in Scopus Google Scholar [21] G.D. Zhang, X.Z. Zhang, Z.H. Zhou, et al. Preparation and Properties of Concrete Containing Iron Tailings/Manufactured Sand as Fine Aggregate.
— Iron ore tailings (IOT), the predominant solid by-products of iron ore mining and refining, present significant environmental challenges due to their sheer volume. This paper endeavors to scrutinize the prospective deployment of IOT as an alternative to soft soil in the fabrication of controlled low strength materials (CLSM) for backfill applications.
— Iron ore tailings (IOTs) are an important solid waste in the mining industry, which can pollute the environment and endanger human health. However, the disposal …
— Iron ore tailings (IOTs) are a form of solid waste produced during the beneficiation process of iron ore concentrate. In this paper, iron recovery from IOTs was studied at different points during a process involving pre-concentration followed by direct reduction and magnetic separation. Then, slag-tailing concrete composite admixtures …
DOI: 10.1016/j.jobe.2023.106585 Corpus ID: 258231807; Utilization of iron ore tailings with high volume in green concrete @article{Zhang2023UtilizationOI, title={Utilization of iron ore tailings with high volume in green concrete}, author={Yannian Zhang and Zhijun Li and Xiaowei Gu and Moncef L. Nehdi and Afshin Marani and Lei V. Zhang}, journal={Journal …
The situations, characteristics, and status of iron ore tailing resources in China are presented. The approaches of comprehensive utilization of iron ore tailings have been analyzed. It has been proved that the comprehensive utilization of iron ore tailings is efficient, socially beneficial and improves environment situation. The scopes of …
— In Brazil, iron ore tailings generally have higher levels of iron reaching about 60% of Fe in its composition [3], ... Utilization of iron ore tailings as fine aggregate in ultra-high performance concrete. Constr. Build. Mater., 50 (2014), pp. 540-548, 10.1016/j.conbuildmat.2013.10.019.
— The chemical and physical properties of iron ore tailings are comprehensively examined in this review, and various beneficiation and metallurgical recovery techniques …
— The iron mine tailings accumulation in dams is an environmental and economic problem. ... Onitiri and Akinlabi 4 used 20% by volume of iron ore tailings as maximum amount in ... T. Utilization of ...
— In China, iron ore tailings are the major mining solid wastes, which storage has reached 5 billion tons, and a steady increasing trend of the rate of over 0.3 billion tons per year is observed. However, the iron ore tailings utilization rate is very low; in 2013, this rate in China was below 20% (C. Lu et al., 2020; X.D. Lv et al., 2018).
— This study systematically explores the physical and chemical properties, grindability, and basic characteristics of extremely fine particle iron ore tailings (IOTs), providing the basis for the comprehensive utilization of such IOTs in …
— Iron ore consumption is expanding at a 10% annual pace globally. Steel output has lately increased to meet industrial demand. Due to the efforts of both domestic and …
— Iron ore tailings (IOTs) are a form of solid waste produced during the beneficiation process of iron ore concentrate. In this paper, iron recovery from IOTs was studied at different points during a process …
For example, the content of SiO 2 in phosphate tailings is 2.1, in contrast to the 75.23 in iron ore tailings. Even if there were all lead-zinc tailings or iron ore tailings, the variation content of SiO 2 is 15.50-69.92 in the lead-zinc …
— Natural sand and iron ore tailings were used as aggregates. The natural sand was originally excavated from the lower reaches of Yangtze River and had an apparent density of 2.63 g/cm 3.The tailings were obtained from the local iron and steel industry and had an apparent density of 2.62 g/cm 3.The chemical composition of the …
— The two prominent methods for mine wastes management or storage are dams and dumps, according to Blight [].Mine tailing impoundments and dam failures are very common, and many literatures have reported this [13, 14] as a cause due to the geotechnical behaviour of tailings.The Fundao dam failure in 2015 [], Brumadinho dam …
— Iron ore tailings are a common type of hazardous solid waste in China and have caused serious environmental problems, and the high cost of producing ultra-high performance concrete (UHPC) provides the motivation to look for low-priced raw materials. ... Utilization of iron tailings as substitute in autoclaved aerated concrete: physico ...
— 1. Introduction. Iron ore tailings (IOT) are a major industrial solid waste generated during the beneficiation of iron ores. It is estimated that several hundred million tons of IOT are discharged globally each year [1].The stockpiling of tailings not only occupies substantial land resources but also poses serious threats to the surrounding …
— 1. Introduction. Vanadium-titanium iron ore tailings (VTIOT) is solid industrial waste produced during the beneficiation process of vanadium-titanium magnetite (VTM) [1], [2], which has been stockpiled in huge quantities in China [3], [4], with cumulative stockpiles exceeding 7.5 billion tons [5], not only occupying a large amount of land, but also …
— World is bestowed with self-sufficient magnetite and hematite iron ores. Huge volume of mining waste, namely iron ore tailings (IOT), is generated during processing of iron ore, leading to environmental concerns. At the same time, due to excessive usage and environmental regulations, there is scarcity of naturally available …
— Iron tailings are the main component of industrial solid waste, and their resource utilization has attracted the attention of the whole society. Based on the introduction of chemical mineral composition of iron tailings, the comprehensive utilization status of iron tailings is analyzed.
— Iron ore tailings have large stockpiles and low utilization rates.. Thus, their safe and effective disposal is essential for environmental protection. • This study evaluated cementitious composites prepared using iron ore tailings.. The study demonstrated its sustainable application as an eco-friendly material.
— The aim of this review is to re-assess the potential utilization of tailings for cement clinker production and the opportunities and challenges of using tailings as …
Utilization of iron ore tailings as raw material for portland cement clinker production. Adv. Mater. Sci. Eng., 2016 (2016), Article 1596047, 10.1155/2016/1596047. View in Scopus Google Scholar [4] F. Han, Y. Zhou, Z. Zhang. Effect of gypsum on the properties of composite binder containing high-volume slag and iron tailing powder.
— The results show that the activation of iron ore tailings(IOT) can increase the specific surface area, improve the surface energy and activity, increase the degree of participation in hydration reaction, promote the formation of a large number of acicular ettringite and C-S-H gel, improve the pore structure of hydration products, and lead to …
— This study systematically explores the physical and chemical properties, grindability, and basic characteristics of extremely fine particle iron ore tailings (IOTs), providing the basis for the comprehensive …
— Iron tailings is one of the main solid waste produced in the process of iron ore development, and is also an important secondary resource. The common ways of comprehensive recovery and utilization …
— Therefore, there is an urgent need to develop cost-effective tailings utilization technologies. The iron tailings are often used to make ceramsite, cement and other building materials (Conclusions. This study tested joint soil utilization technologies using 3 types of amendments, 3 types of plants, 3 types of microorganisms.
— In this study, the potential of converting iron ore tailings (IOTs) into sustainable building materials was explored. IOTs were combined with fly ash (FA) and ground granulated blast-furnace slag (GGBFS) to prepare IOTs-based supplementary …
— 1. Introduction. Iron ore tailing (IOT) is an industrial solid waste produced after beneficiation process of iron ores. It is a kind of fast accumulated waste due to the increasing demand for iron, steel and the relevant industries worldwide [1].The high demand for iron leads to the mining of iron ores with lower iron content, resulting in the increasing …
— The iron ore tailings aggregates concrete exhibited a good mechanical strength and even in the case of compressive strength, there was an improvement of 11.56% over conventional aggregates concrete. ... L., & Zhenling, L. (2010). Recycling utilization patterns of coal mining waste in China. Resources, Conservation and …
— Iron ore tailings (IOTs) are an important solid waste in the mining industry, which can pollute the environment and endanger human health. However, the disposal and high value-added utilization of iron tailings have always been a challenge. Notably, superconducting high-gradient magnetic separation (S-HGMS) technology is a …
— Figure 5: SEM images of iron ore tailings [28] tailings, contain a thimbleful of deleterious hea vy metal, which may cause en vironmental concerns or modify the
— Tailings are solid wastes of the ore beneficiation process in the extractive industry and are available in huge amounts in some countries. This paper reviews the potential utilization of tailings as a replacement for fine aggregates, as supplementary cementitious materials (SCMs) in mortar or concrete, and in the production of cement …
— The mining industry has been expanding and consequently increasing the associated environmental impacts, especially regarding this process's high volume of iron ore tailings (IOT) disposal. The best way to solve the problems caused by IOT is to develop large-scale utilization technologies that may consume large quantities of it.
