· This paper reports the results of an initial attempt of using iron ore tailings (IOTs) to develop greener engineered cementitious composites (ECCs). ECC is a unique class of high-performance fiber
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· 19.01.2023-Egypt's exports of building materials, including cement, saw a 7% YoY increase in the first 11 months of 2022, totaling $6.37 billion. Cement exports also saw a 37% YoY surge. 01.03.2023-Misr Cement-Qena reported a decrease in consolidated net profits after tax in 2022 but an increase in sales and total assets.
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· Although many studies have focused on using iron ore tailing (IOT) in concrete and have reported positive results, readers may find it difficult to accurately assess the behaviors of IOT in
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· In recent years, many scholars have studied the mechanical properties of concrete prepared by iron tailing sand, and there are many reports on the preparation of high-performance concrete by iron
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Cement. The cement industry is among the most capital intensive industries and the cost of cement plants is typically above US$200mil / mil tonnes of capacity annually. As an energy-intensive industry, each tonne of cement produced requires 60 to 140 kg of fuel oil and about 120 kWh of electricity depending on the cement variety and the process
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· Currently, tailings from iron ore mines has been the subject of different studies and can be used as raw material for various industrial products intended for civil construction, such as in
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· Double-layer iron ore tailings (IOTs) cement-based electromagnetic wave (EMW) absorbing materials with carbon black (CB) and steel (2022J011195); Resource chemical industry and technology Foundation of
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The production of raw cement involves the extraction and procurement of raw materials like limestone and clay or iron ore. These materials are then crushed and finely ground to form the raw mix. The raw mix is then subjected to high-temperature heating in a kiln, reaching temperatures around 1400°C in a process called clinker.
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· Demand for Iron ore and coal. There is a big shortage of iron ore due to iron ore exports. The per ton price of iron ore has increased by INR 700, while that of steel pellets has gone up by INR 300 to 350. In addition, iron ore fines and lumps have gone up by INR 200 to INR 4300 per ton.
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· Ground granulated blast furnace slag (GGBS) is a by-product from the blast-furnaces used to make iron. Mixtures of iron-ore, coke and limestone are fed into blast-furnaces which operates at a temperature of about 1500 °C. Two products: molten iron, and molten slag are produced when iron-ore, coke and limestone melt in the blast
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· AbstractThis paper reports the results of an initial attempt of using iron ore tailings (IOTs) to develop greener engineered Wang, J.-Z., and Wu, C. (2000). “Effect of energy saving and formation of portland cement clinker using iron-tailings as
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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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concrete made from abandoned iron ore tailings in Iraq, and the findings showed that it performed better than regular concrete and displayed greater compressive strength and
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tailing powder was collected from the iron ore mining industry in Kanjamalai, Salem. The chemical composition of cement, calcined zeolite, iron ore tailings powder, and sand is shown in Table 1.
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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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2.3 Test Specimen. Cubes of size 150mm X150mm X150 mm were prepared using the standard moulds. The samples were casted using the six different percentage of iron dust (0%, 10%, 20%, 40%, 60% &80%). The samples were demoulded after 24 hours from casting and kept in a water tank for7 & 28 days curing.
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· The chemical composition of IOTs mainly depends on the mineralogy of iron ore. IOTs contain mainly SiO2, Al2O3, Fe2O3, CaO, and small fractions of metal oxides (MgO, Na2O, K2O, TiO2, and Mn2O3) [7]. During crushing and screening, IOTs can be divided into coarse tailings and fine tailings according to the granulometric classification.
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· The cement industry has for some time been seeking alternative raw material for the Portland cement clinker production. 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. For this purpose, two kinds of
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· Test results indicated that the slump values of 130 mm and 80 to 110 mm were recorded for the control and IOT concretes respectively. The concrete sample of 50% IOT recorded the highest
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· In this research, iron ore tailing (IOT) is utilized as the cementitious material to develop an eco-friendly ultra-high performance concrete (UHPC). The UHPC mix is obtained according to the modified Andreasen and Andersen (MAA) packing model, and the applied dosage of IOT is 10%, 20%, and 30% (by weight), respectively. The
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· This discovery is set to significantly impact Rajasthan's industrial development and job creation, with the potential to attract new investments and bolster the steel and cement industries. The auction of composite licenses, facilitated by the Rajasthan State Mines and Minerals Ltd (RSMML), is expected to further explore and
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· DOI: 10.1016/J.CONBUILDMAT.2021.122968 Corpus ID: 233575872 An evaluation of iron ore tailings characteristics and iron ore tailings concrete properties @article{Zhao2021AnEO, title={An evaluation of iron ore tailings characteristics and iron ore tailings concrete properties}, author={Jiangshan Zhao and Kun Ni and Youpo Su
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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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· 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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· In this study, finely powdered waste glass from industries and Iron Ore Tailings (IOT) produced from mining areas are used as a partial replacement of cement and fine aggregates in concrete
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IOT is a waste product generated from the production of iron ore and disposed to land fill without any economic value. Concrete mixtures containing different amount of IOT were designed for grade C30 with water to cement ratio of 0.60. The percentage ratios of the river sand replacements by IOT were 25%, 50%, 75% and 100%.
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UTILIZATION OF IRON ORE TAILINGS IN GEOPOLYMER CONCRETE Mr. Manjunatha M Katti1, Mr. Lakshmi Narayana2, Ms. Shilparani H S Hasanbadi3, Ms. Rashmi.R4 1Assistant Professor, Dept of Civil Engineering
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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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Normal strength concrete was designed based on water/cement ratio of 0.54 and cement content of 463Kg/m3 was used in preparing the fresh concrete. For each kind of Iron ore tailings concrete, four different types of concrete samples were produced.
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The use of waste as alternative fuels and raw materials in the cement industry has numerous environmental benefits such as 1. Reduced use of mined natural materials such as limestone, bauxite, iron ore etc and
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Trituradora de piedra vendida por proveedores certificados, como trituradoras de mandíbula/cono/impacto/móvil, etc.
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