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The findings indicate that concrete with 35% iron ore tailings replacement performs similarly to natural sand concrete and it can be used in engineering. Xiaoyan et al. experiments examined how IOT size affects plastic viscosity of mortar and tensile characteristics. Mortar using IOTs as aggregates can achieve tensile and compressive …
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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 …
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Iron Ore Tailings (IOT) are the waste slag resulted from iron ore mines. Large amount of Iron Ore Tailings (IOT) have been generating every year posing serious environmental problems, large production of cement everyday resulting the emission of CO 2 and increase in the consumption of river sand for construction activities making the river beds over …
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Other materials used to manufacture cement include: shells, chalk, shale, slate, silica sand, iron ore, and blast furnace slag. The Cement Manufacturing Process While each cement plant may differ in layout, equipment, and appearance, the general process of manufacturing portland cement is the same: crushed limestone and sand are mixed with ...
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The application of IOT into concrete achieves sustainable development. Incorporating waste by-products in concrete is one of the critical approaches for sustainable development. Particularly, iron ore tailings (IOT) as ordinary industrial solid …
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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. ... The earlier study examined the possibility of utilizing the iron ore tailings as aggregate in dam concrete. The results indicated the concrete ...
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Macro-synthetic fiber-reinforced iron ore tailings (IOT) concrete is an environment-friendly building material featured by recycling IOT and improving performance of IOT concrete due to fiber incorporation. In this study, the mechanical properties of macro-synthetic fiber-reinforced concrete incorporating IOT were investigated. Two …
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concrete containing 20% iron ore tailing (IOT), Valu e comparable to 28 days compressive stren gth of 45.02 was obtained using only sand as fine aggregate.
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Download Citation | On May 18, 2024, Afia S. Hameed and others published Feasibility of Iron Ore Tailings in Geopolymer Concrete for Sustainable Development | Find, read and cite all the research ...
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DOI: 10.1016/J.CONBUILDMAT.2021.123022 Corpus ID: 233553914; Cementitious activity of iron ore tailing and its utilization in cementitious materials, bricks and concrete @article{Zhang2021CementitiousAO, title={Cementitious activity of iron ore tailing and its utilization in cementitious materials, bricks and concrete}, author={Na …
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One of the advantages of cement and the cement concrete industry in sustainability is the ability to utilize large amounts of industrial solid wastes such as fly ash and ground granulated blast furnace slag. Tailings are solid wastes of the ore beneficiation process in the extractive industry and are available in huge amounts in some countries. This paper …
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The disposal of industrial by-product tailings has become an important issue in solving environmental pollution. In this study, 15%, 30%, 50%, and 70% iron tailings were used to replace the natural sand in concrete, and 1.5% steel fiber and 0–0.75% PVA fibers were added to the iron tailings concrete. The effects of the iron tailings …
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Keywords: Self- compacting concrete, Iron Ore Tailings, Red Mud Introduction Self-compacting concrete (SCC) is an innovative concrete which can be placed and compacted under its own weight with little or no vibration effect and at the same time cohesive enough to be handled without segregation or bleeding.Adoption of SCC offers substantial ...
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What is Iron Ore Used For? The primary use of iron ore is in the production of iron. Most of the iron produced is then used to make steel. Steel is used to make automobiles, locomotives, ships, beams used in buildings, furniture, paper clips, tools, reinforcing rods for concrete, bicycles, and thousands of other items.
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Iron ore tailings were also used in other concrete applications. For example, Das et al. [13] studied the use of IOT to develop ceramic tiles and their study showed, that tiles produced at a maximum of 40% of IOT were superior in terms of scratch hardness and strength, compared to European standard specifications.
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In the final mixture, both sand and cement were substituted with iron ore powder and zeolite, respectively, at 5%, 10%, 15%, and 20%. Conplast SP 430, a water-reducing admixture, was used in all ...
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Feasibility of Iron Ore Tailings in Geopolymer Concrete for Sustainable Development Afia S. Hameed, Tony K. Chackochan, and Praveen Nagarajan 1 Introduction The utilization of industrial waste materials in construction has gained significant attention in recent years due to the increasing demand for sustainable development ...
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Iron ore tailings (IOT) are one of the mining wastes obtained from the beneficiation process of iron ore concentrates. This paper presents an overview of the …
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This study examines the effects of iron ore tailing (IOT) replacement ratios and the hybridization of steel fiber (SF) and polyethylene (PE) fiber (PF) on the mechanical, sulfate freeze–thaw (F–T) resistance, and microscopic characteristics of IOT concrete. The mechanical properties of specimens including compressive strength (fcu) and splitting …
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Solid waste management is a critical issue worldwide. Effectively utilizing these solid waste resources presents a viable solution. This study focuses on Iron ore tailings (IOTs), a solid waste generated during iron ore processing, which can be used as supplementary cementitious materials (SCMs) but have low reactivity, hindering their …
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Using iron ore tailings (IOTs) as the main aggregate for concrete will not only save crushed stone mining but will also reduce the environmental impact of IOTs. A discrete element model of concrete with realistic IOTs shape was developed using particle flow coding 3D technique. The accuracy of the numerical model was verified with the …
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Iron ore tailings from iron ore mines pose environmental challenges. However, their reuse could provide significant environmental benefits. This study focused on producing clean concrete using iron …
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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 …
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1. Introduction. Concrete is one of the most widely used construction materials in civil engineering due to low cost, excellent mechanical and high durability [1].The global consumption of concrete is about 25 billion tons annually [2].The fine aggregate is a critical constituent of concrete and occupies 25 % of the concrete volume.
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The bulk of the cement industry's environmental burden is from the calcareous source. Calcium is mostly available naturally as limestone (CaCO 3), where almost half of the mass is eventually released as CO 2 during clinker manufacture. Iron (Fe) is the fourth most common element in the Earth's crust surpassed only by oxygen, silicon, and …
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Request PDF | On Jan 1, 2014, Elinwa Augustine Uchechukwu published Evaluation of the Iron Ore Tailings from Itakpe in Nigeria as Concrete Material | Find, read and cite all the research you need ...
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The impact resistance of lean iron ore concrete was ~0.65–2.03 times greater than that of conventional limestone concrete. In this study, as the impact fracture energies of the C80 and C90 ...
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Using iron ore tailings (IOTs) as the main aggregate for concrete will not only save crushed stone mining but will also reduce the environmental impact of IOTs. A discrete element …
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Reusing of iron ore tailings (IOT), particularly as recycled aggregate to prepare concrete, plays an important role in reducing dependence on natural resources …
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In the present study Iron Ore Tailings (IOT) procured from Kudremukh Lakya Dam site (KIOCL Ltd.) are used as partial replacement to fine aggregates at levels of 10, 20,30,40,50 percent
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