WEBJul 31, 2022 · Rishu Jain, A. K. Singhai (2016) "Effect on Geotechnical Properties of Clayey Soil Stabilized with Iron Ore Mine Tailing and Ground Granulated Blast Furnace Slag". Volume 4, Issue 6, ISSN:
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WEBMar 17, 2023 · Cement–iron tailing powder composite cementitious materials (CTCCMs) is the research object of this study. Accordingly, hydration heat tests were implemented to analyze the hydration heat release law.
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WEBMar 1, 2019 · If iron tailing powder doesn't participate in reaction, sample PTP will show clearly higher Ca(OH) 2 content than the 50% Ca ... Innovative methodology for comprehensive utilization of iron ore tailings part 2: the residues after iron recovery from iron ore tailings to prepare cementitious material. J. Hazard. Mater., 174 ...
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WEBAbstract. In order to study the influence rule and mechanism of iron ore tailing powder (IOTP) replacing cement in UHPC, the influences of different specific surface area and dosage of IOTP replacing cement on its strength and liquidity were tested. Moreover, the pore structure and hydration products morphology of UHPC were tested by MIP and ...
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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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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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WEBOct 24, 2022 · Iron ore tailings (IOT) are a type of mining solid waste and cause many environmental and safety problems. The aim of this paper was to investigate the effect of highvolume ultrafine IOT on the mechanical properties and hydration mechanism of cementitious materials. ... Experimental investigations on the mechanical behavior of .
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WEBJan 1, 2022 · Semantic Scholar extracted view of "Influence of iron tailing powder on properties of concrete with fly ash" by Fanghui Han et al. ... Effects of iron ore tailings on the compressive strength and permeability of ultrahigh performance concrete. Weifeng Zhang X. Gu Jingping Qiu Jianping Liu Yunqi Zhao Xiaohui Li.
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WEBDec 1, 2020 · Iron ore tailings (IOT) is among the most extensive mine solidwaste resources in China, and it is challenging to achieve efficient consumption of this resource [10, 11]. However, it is efficient ...
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WEBResource utilization of iron tailings powder is an effective measure to reduce the dambreak risk of an iron tailings reservoir. Adding polypropylene fiber to iron tailings powder can improve its shear performance. Direct shear tests were carried out on reinforced iron tailings powder with polypropylene fiber with dosages of 0%, %, %, %, and .
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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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WEB1. Introduction. In recent years, the massive accumulation of solid waste, such as iron tailings and red mud, has caused serious problems to the ecological environment [1,2,3].Studies related to iron tailings have described that the annual production of iron tailings in China is million tons [].However, the annual comprehensive utilization .
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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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WEBMay 18, 2023 · To study the role of glass powder and iron ore tailings combination in concrete. The properties such compressive strength, flexural strength, tensile strength and also durability parameters likely ...
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WEBJun 1, 2023 · The experimental process was presented in Fig. 1 and comprised three stages, including magnetization roasting of iron tailings, alkaline leaching of roasted products, and magnetic separation of leaching residue. The roasted ore was leached with NaOH solution to remove SiAl gangue minerals, following a procedure that entailed .
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WEBIn this research, iron ore tailing (IOT) is utilized as the cementitious material to develop an ecofriendly ultrahigh 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 calculated packing .
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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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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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WEBApr 21, 2021 · Abstract. Iron ore tailing (IOT) is the wastes generated during the salutariness process of iron ore concentration. These wastes are abundant in quantity, which can be utilized in many ways. In this manuscript, utilization potential of IOT as a resource and its adaptation in the replacement of different industrial raw materials have .
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WEBSep 21, 2023 · The world reserves of iron ore are around 170 billion tons. More than billion tons of iron ore were processed in 2019, in which % correspond to the world's largest producer, Australia ...
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WEBNov 25, 2019 · Resource utilization of iron tailings powder is an effective measure to reduce the dambreak risk of an iron tailings reservoir. ... Results show that iron ore tailings have properties which can ...
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WEBApr 1, 2020 · The concrete with 10% glass powder 30% iron ore tailings showed a higher strength compared to the conventional mix for 28 days. Concrete mix containing 10% GP and 30% IOT showed higher flexural ...
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WEBApr 1, 2017 · The results show that the activity of iron tailings changes unobviously after reaching a certain fineness; Iron tailings with lower activity primarily have physical filling effect under standard ...
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WEBDec 1, 2023 · b)Iron ore tailings. The local industries deposited iron ore tailings, which were then used to supplement fine aggregates partially. Conventional fine aggregate (river sand) was replaced with 30% volume of iron ore tailings that had passed through the 600micron sieve to achieve this.
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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 · Addition of lime to iron tailing powder increased the shear energy dissipation which further enhanced the frictional force between iron ore tailing particles from ... Concrete by volume comprises of 70% aggregate, which include both coarse and fine aggregate. Iron ore tailings can be considered as fully or partial replacement .
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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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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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A material supplier from Belgium would like to produce limestone powder for his custome...
India is rich in various mineral resources and it is an important mineral processing market
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