WEBMar 29, 2024 · （2）Iron tailings powder: iron tailings are taken from a tailings reservoir in Hebei Province, China, its main chemical components are shown in Table 3, and the phase analysis is presented in Fig. planetary ball mill (XQM4) was used to grind the iron tailings, the mill speed was set to 360 r/min, the grading of the grinding ball was .
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WEBMar 29, 2024 · Siliceous iron tailings powder is used as a mineral admixture for concrete. • The iron tailings powder complies the CH crystal orientation in ITZ.
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WEBMay 27, 2022 · The main chemical component of highsilicon iron tailings (HSITs) is SiO2; HSITs also include some oxides such as Al2O3 and CaO. Mechanical activation can reduce the particle size of HSITs and enhance their pozzolanic activity such that they can be used as a type of mineral admixture for cementbased materials (CBMs). This study aims to .
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WEBJul 1, 2013 · The iron ore tailings–based cementitious composite with wt.% graphene shows an extremely high flexural strength of MPa at 3 days, which is % higher than that of the iron ore ...
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WEBDec 11, 2023 · Steel was the fundamental material for industrial development, and the steel industry's growth was linked to the separation of mining and sorting of vast iron ore resources [1, 2].Over the past few decades, China's iron and steel industry has rapidly developed, leading to an annual discharge of over 6 billion tons of iron tailings .
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WEBDOI: / Corpus ID: ; Iron ore tailings as a supplementary cementitious material in the production of pigmented cements article{Magalhes2020IronOT, title={Iron ore tailings as a supplementary cementitious material in the production of pigmented cements}, author={Luciano Fernandes de .
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WEBMar 29, 2021 · Onitiri and Akinlabi 4 used 20% by volume of iron ore tailings as maximum amount in the investigated composites. ... A. Mechanical properties of iron powder filled high density polyethylene ...
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WEBIn Brazil, large quantities of iron ore tailings (IOT) are produced as a result of iron mining, which may affect the environment negatively. This work evaluated the use of IOT in hot mix asphalt type C (HMAC). For this purpose, IOT was incorporated as a filler (at 1% in relation to the total mass of HMAC).
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WEBThe objective of this study was to recover the iron from the iron ore tailing and convert it into a valueadded products like αFe2O3 nanoparticles with photoalytic properties.
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WEBJan 12, 2024 · 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 largescale utilization technologies that may consume large quantities of it.
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WEBPDF | On Jan 1, 2019, K. Behera and others published Production of Construction Bricks Using Iron Ore Tailings and Clay: Proceedings of 6th IconSWM 2016 | Find, read and cite all the research you ...
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WEBApr 1, 2024 · Iron tailing porous concrete (ITPC) is a new foamed concrete material that using iron ore tailing powder to partially replace the cement. Previous investigations on ITPC primarily focused on its mechanical properties under static loads or low strain rate conditions, leaving a significant gap in its impact resistance performance at high strain .
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WEBMay 3, 2024 · The coal gangue (CG) used in this study was sourced from Shijiazhuang, Hebei. The CG blocks were subjected to drying in an oven at 90 °C for 24 hours, and ground for hours after drying, with an average particle size of μm and a specific surface area of 505 m 2 /kg after grinding. The iron ore tailings (IOT) had a particle .
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WEBSep 1, 2020 · The processing of iron ore generates large volumes of tailings. Acid leaching enables the solubilization of iron in an aqueous solution, allowing the production of ferric liquor and a silicarich ...
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WEBAug 1, 2023 · The high carbon emissions in the construction industry and the largescale storage of high silicon iron ore tailings (IOTs, SiO 2 > 60% wt., Fe 2 O 3 > 10% wt.) associated with mining pose a serious challenge to sustainable development. Therefore, using IOTs as a replacement for cement to produce supplementary cementitious .
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WEBMar 1, 2019 · The Role of Iron Tailing Powder in UltraHighStrength Concrete Subjected to Elevated Temperatures. Iron tailing powder (ITP) is considered to have the potential to replace cement to manufacture ultrahighperformance concrete (UHPC). However, the performance of UHPC with the addition of ITP after..
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WEBDec 11, 2023 · The disposal of industrial byproduct tailings has become the focus of mine followup work and an important issue in solving environmental pollution. This study explores the potential of utilizing iron tailings and phosphogypsum as cementitious materials, guided by the concept of comprehensive utilization. The mechanical property .
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WEBAug 1, 2023 · Iron ore tailings (IOTs) are a byproduct of the iron ore beneficiation process and are a significant source of solid waste [13,14]. In China alone, an astounding 600 million tons of IOTs are produced annually, yet the utilization rate remains shockingly low at only 7% [14]. ... Influence of iron tailing powder on properties of concrete with fly ...
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WEBFeb 10, 2018 · Iron ore tailing (IOT) is a typical industrial solid waste from iron production, where approximately –3 t of IOT are generated for 1 t of iron product in China (Zhang et al. 2006).In recent years, steel production has significantly increased to satisfy construction industry demands, which has resulted in the generation of a considerable amount of IOT.
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WEBNov 1, 2023 · Iron ore tailings (IOTs) was the residual solid waste that remained after the extraction of iron from iron ore [1,2], which was typically deposited in tailings ponds. Leakage or spillage from the tailings pond can result in the release of harmful substances into the surrounding soil, groundwater, and rivers, causing contamination of water and ...
WhatsApp: +86 18037808511![[PDF] Research on iron ore tailing improving Compressive .](/xfe349p/49.jpg)
WEBNov 28, 2015 · The research on whether can iron ore tailing improve the compressive strength of alkali activated slag foaming concrete is conducted. The experiment shows that too little or too much powder from iron ore tailing will reduce the compression strength of alkali activated slag concrete, when powder from iron ore tailing achieving optimal .
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WEBDec 4, 2021 · The aim of this research is to test the characteristics of concrete by substitute fine aggregate with iron ore tailings and partial glass powder as in the place of cement. Concrete with waste products such as glass powder and iron ore tailings offer technical, economic and environmental advantages. In this experimental investigation, glass .
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WEBMay 3, 2017 · In order to distinguish the filling effect and volcanic activity and explore the ways motivating the activity of richsilicon iron ore tailing(IOT), inert quartz was brought in as the correction standard, the influences of fineness, calcination, thermal curing system and some other factors were investigated by IR, XRD, MIP, and so on microscopic .
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WEBJan 15, 2020 · Iron ore tailings (IOTs), as a mineral waste generated from iron ore processing, are discharged annually with the rapid global development of iron and steel industries ... Changsha Tianchuang Powder Technology Co., Ltd., China) operating at a frequency of 50 Hz, a power of kW and a rotation speed of 500 rpm. ...
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WEBMar 16, 2021 · The use of iron tailing powder (ITP) could be considered an ideal alternative cementitious material in concreterelated appliions, because of its abundant storage and lowcost . Meanwhile, the outstanding pozzolanic reactivity [ 21, 22 ] and the filling effect of ITP particles enable it to replace cement partially, thereby reducing the .
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WEBAug 1, 2023 · Iron ore tailings (IOTs) are a byproduct of the iron ore beneficiation process and are a significant source of solid waste [13, 14]. ... Feasibility study of developing green ECC using iron ore tailings powder as cement replacement. J. Mater. Civ. Eng., 25 (7) (2013), pp. 923931. View in Scopus Google Scholar [32]
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WEBNov 15, 2023 · The limited cementitious activity of steel slag (SS) powder restricts its largescale utilization as a replacement material for Portland cement and even more so for inert iron ore tailings (IOT). The microIOT (MIOT) were utilized as additives to improve the compressive strength and hydration degree of a binary system containing SS and PC. .
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WEBApr 11, 2023 · To investigate the appliion of iron tailings in cementbased materials as fine aggregate and mineral admixture, six iron tailings sands were selected from different places of origin, and the methods of acid and alkali activation were adopted to increase the activity of tailings powder. The strength of mortar was evaluated and the composition .
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WEBFeb 14, 2024 · 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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WEBJan 30, 2020 · The certain amount of iron ore tailings, coal gangue powder, sewage sludge and shale were mixed at different weight ratios. Afterwards, the raw materials were homogenized by adding the 10% of water in the mortar mixer for 5 min. The wetting materials were then natural aged by sealing at 20 °C for 8 h to allow the fully permeation .
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WEBJun 15, 2017 · The earlyage hydration characteristics of composite binder containing iron tailing powder were investigated by determining the hydration heat, nonevaporable water content, pore structure, and morphology of hardened paste as well as the compressive strength of mortar. The results show that the reaction degree of iron .
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WEBDec 1, 2022 · The raw iron tailings powder (RITP) was obtained from an openpit tailings dam in Huoqiu County, Anhui Province, China. The chemicals, including CaSO 4 ·2H 2 O and Na 2 SO 4, are analytical reagents from Sinopharm Chemical Reagent Co., cement used in this study was benchmark cement, which does not contain any .
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WEBJan 26, 2024 · The massive accumulation of iron ore tailing (IOT) results in land resource wastage and increases the possibility of environmental pollution. In this study, the feasibility of using lowcarbon alkaliactivated ground granulated blastfurnace slag (lime/Carbide slag (CS)GGBS) and coal fly ash (CFA) instead of portland cement (PC) for solidifying IOT .
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WEBPDF | On Jan 1, 2022, Juan Gabriel BastidasMartínez and others published Effects of Iron Ore Tailing on Performance of HotMix Asphalt | Find, read and cite all the research you need on ResearchGate
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