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In the mining industry, elevated-height dry stacking facilities involve high-pressure levels that may incur particle breakage (Consoli et al., 2024).Such structures have been a safer alternative to slurry tailings disposal in impoundments (Davies, 2011, Gomes et al., 2016).They are conceived by compacting and pilling the filtered tailings to required specifications, which …
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Iron ore tailings, a remnant of iron ore treating, are one such waste material that holds potential for sustainable applications in the construction industry. Activating industrial waste items like fly ash or slag results in GPC, a type of concrete that has developed as a more sustainable substitute for conventional Portland cement-based ...
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The structures with the addition of 10% and 20% of iron ore tailings had about the same results as the structures of soil–cement with no addition of iron ore tailings.
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As a result, the utilization of tailings in cement and concrete will be good for the environment both in the solid waste processing and materials using in the construction industry. Mineral ...
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Current research status and progress on the cementitious activity of iron ore tailings and these three directions are reviewed, and the future scope of research in this area is suggested.
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The construction industry has been improvising through the advances in innovation and procedure. Concrete, which is the essential part in development industry, is being utilized more than manmade materials and it expands more …
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It is worth noting that the cement industry is facing severe environmental problems. For example, cement production will emit large amounts of toxic metals ... Preparation and characterization of Portland cement clinker from iron ore tailings. Constr. Build. Mater., 197 (2019), pp. 152-156, 10.1016/j.conbuildmat.2018.11.236. View PDF View ...
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iron ore tailing as a partial substitute for Portland cement. Thus, a characterization of the material was carried out, after grinding, and tests in pastes to study the performance of
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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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In Brazil, iron ore tailings generally have higher levels of iron reaching about 60% of Fe in its composition [3], [13], [15], [17], [7], [25], and they can reach a granulometry in natura as fine as that of cement particles [7], [25]. Investigations evaluating the influence of this type of IOT, rich in iron, as SCM are scarce.
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Adedayo and Onitiri (2001) carried out research on Tensile Properties of Iron Ore Tailings Filled Epoxy Composites. They stated that the 30 % volume content of 300 µm particle size of iron ore tailings is the better combination that can be added to epoxy to give maximum Young's modulus. Though tensile strength for ITR-
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Sustainable handling of iron ore tailings is of prime concern to all stakeholders who are into iron ore mining. This study seeks to add value to the tailings by utilising them as a replacement for aggregates in concrete. A …
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Abstract - Large amount of the chrome ore concentration plant tailings was discarded during chrome ore mining process. The accumulation of the tailings takes large areas of land for the
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The aim of this research was to investigate the possibility of utilizing iron ore tailings (IOT) to replace clay as alumina-silicate raw material for the production of Portland cement clinker.
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A vertical planetary ball mill was used to grind iron ore tailings in another study [199], which caused the specific surface area to increase from 103 m 2 /kg (raw iron ore tailings) to 463 m 2 ...
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Download Table | Chemical Composition of Iron Ore Tailings in Units of Weight Percent from publication: Feasibility Study of Developing Green ECC Using Iron Ore Tailings Powder as Cement ...
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It is entirely feasible to use garbage and byproducts as concrete aggregates. Iron ore tailings were another concrete application. The use of iron ore tailings in the manufacture of ceramic tiles was investigated, and it was discovered that tiles containing up to 40% iron ore tailings had higher hardness and strength. As the world becomes more
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It has been demonstrated that iron ore tailings can be applied to produce concrete materials [11, 31]. It is found that the mechanical property of engineered cementitious composites (ECC) …
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1. Introduction. Ordinary Portland cement has become an indispensable building material in the construction industry with the rapid development of industrialization [1, 2].Cement production in China reached 2.316 billion tons in 2017 [].Large quantities of natural materials such as limestone, bauxite, clay, sandstone, and gypsum have been consumed in the cement industry.
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Figure 2 presents the XRD pattern of lead-zinc tailings coming from different resources. Previous research [21] reveals that the mineral phases of the lead-zinc tailings include calcite, dolomite ...
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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 …
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The main components of iron ore tailings are the same as natural sand, and the high silica content in the iron ore tailings indicates that they can be used to prepare concrete is considered. II.c Microstructure of IOT According to the study by [32], the XRD pattern of IOT as shown in Fig 3 shows that there is a presence of kaolinite and calcite ...
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Author keywords: Engineered cementitious composites; Sustainability; Tensile ductility; Iron ore tailings. Introduction Iron ore tailings (IOTs) are large piles of ground rocks that are discarded during the beneficiation process of iron ore concentra-tion. In rapidly developing countries like China, the generation
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A Study on Utilization of Iron Ore Tailings as Partial Replacement for Fine Aggregates in the Construction of Rigid Pavements October 2017 Conference: National Conference on Roads and Transport ...
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In geopolymer reactions, with lime rich compound addition, the strength parameter is dependent on the molar ratios of (Si/Al) and (Ca/Si), such that (Si/Al) ratio contributes to short period and ...
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Request PDF | On Jun 1, 2024, G. Yang and others published Exploration of iron ore tailings with high volume in sustainable cement and ecofriendly cementitious material | Find, read and cite all ...
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In the same way, the cement industry is an intensive consumer of raw materials and a major emitter of greenhouse gases. As one of the main alternatives for reducing these impacts, clinker substitution by wastes from other industries is being extensively considered. ... Feasibility study of developing green ECC using iron ore tailings powder as ...
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manufacturing facilities to produce slag-based cement, which is formed from granulated BF calcareous slangs and limestone. Iron ores are used in cement manufacturing plants to improve combustion properties, add color, and ensure a balanced composition. These are the specifications for iron ore used in the cement industry.
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Abstract 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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Fig. 2 illustrates the iron ore beneficiation process, particularly magnetic separation, resulting in the generation of inevitable tailings. Due to the characteristics of iron ores and the conditions during beneficiation, it is inevitable that approximately 2.5–3 tons of IOTs are generated for every 1 ton of iron ore concentrate produced [7].In 2019, the global annual …
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