WEBSep 10, 2020 · Iron tailings powder is the byproduct of iron ore selection with complex composition. If left untreated, longterm stacking may lead to severe pollution of water, air, and soil. The establishment of largescale tailing dams would not only require large amounts of land but also entail high cost of management and operation [1], [2], [3].
WEBApr 1, 2024 · Iron tailing porous concrete (ITPC) is a new ed 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 .
![[PDF] Optimization Studies of Iron Ore Tailings Powder and .](/favw6b9/294.jpg)
WEBDec 1, 2023 · The disposal of Iron ore tailings Powder (IP) is the primary concern for numerous steel industries. Similarly, natural zeolite, a significant byproduct of volcanic eruptions, pollutes the environment to an extreme degree. This study investigates and implements the extensive use of IP and natural zeolite as admixtures in M20grade .
WEBJan 1, 2021 · composite sintered bricks produced from shale, sewage sludge, coal gangue powder and iron ore tailings. Construction and Building Materials, 232(1 – 3), 117250. DOI / ...
WEBOct 14, 2017 · ECC Using Iron Ore Tailings Powder as Cement . Replacement" Journal Of Materials In Civil . Engineering 25:923931(2013) Citations (3) References (13)
WEBDec 25, 2011 · Section snippets Materials. Iron ore tailings, collected from the tailing ponds of iron ore industries (JodaBadbil, Orissa, India), were first screened for their iron content and one sample with relatively high iron content (~ 40%) was selected for this study (Table 1).Charcoal containing 96% of carbon was used to synthesize the magnetite .
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 ...
WEBDec 30, 2020 · The cementitious activity of iron tailings powder (ITP) as a concrete admixture is investigated and optimized in this study. When the specific surface area (SSA) of ITP is in the range of 450 – 550 m 2 /kg, the activity is larger than that of fly ash, and when SSA is 469 m 2 /kg, the activity reaches its largest value of %. The content .
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 .
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 ...
WEBSep 20, 2011 · Powder XRD, UV–Vis and FTIR spectra confirmed the formation of single phase magnetite. ... Iron ore tailings, collected from the tailing ponds of iron ore industries (JodaBadbil, Orissa, India), were screened for their iron contents and one sample with relatively high iron content (∼%) was used as one of the starting .
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 ...
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 .
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).
WEBDec 1, 2022 · The volume of tailings discharged worldwide from iron ore smelting processes (, iron ore tailings) has increased dramatically in recent years, and the disposal of this waste poses a ...
WEBPublish Date: 25 June 2022. Abstract. Iron tailings is one of the main solid waste produced in the process of iron ore development, and is also an important secondary resource. The common ways of comprehensive recovery and utilization of iron tailings resources at present are described in detail from five aspects: In terms of the recovering ...
WEBOct 1, 2017 · It was found that iron ore tailings could be mixed with cement and fly ash at appropriate ratios to make concrete products that possess certain compressive and flexural strengths.
WEBFeb 14, 2024 · Download Citation | Sustainable assessment and synergism of ceramic powder and steel slag in iron ore tailingsbased concrete | Solid waste management is a critical issue worldwide. Effectively ...
WEBUsing iron tailings powder as an mineral admixture, and iron tailings gravel and sand as coarse and fine aggregates, respectively, the flexural behavior of full iron tailings concrete (FITC) beams was investigated experimentally. Compared with conventional concrete (CC) beam, we showed that the crackresistant, yield, and ultimate moments of ...
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 ...
WEBMay 28, 2022 · 1. Introduction. The continuous development of mineral resources forms many tailings, which is one of the rich solid waste resources. The accumulation of tailings pollutes the environment and poses a threat to the safety of surrounding people and buildings [1,2].Iron tailings (IOTs) account for the most significant proportion of the total .
WEBDOI: / Corpus ID: ; Study on waterrepellent and corrosionresistant properties of cement mortar using superhydrophobic iron ore tailings
WEBIn order to study the effects of iron tailings powder on the mechanical performance of alkaliactivated slag concrete, alkaliactivated slag concrete doped with powdered iron ore tailings was made into 100mm×100mm×100mm cube specimens, which was respectively cured 3 days, 7 days and 28 days. Then the compressive strength of .
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 .
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 .
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
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 .
WEBIron ore tailing is a major solid waste requiring advanced recycling methods because ore tailing powder is polluting air and water resources. For instance, about 300 million tons of tailings are disposed yearly in 1229 iron ore tailings dams in the Hebei province in China. Iron ore tailings can be recycled as functional materials because these tailings are .
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 .
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 .
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.
WEBXRD pattern [36] According to [35], the iron tailing powder's Xray diffraction (XRD) pattern, the primary mineral phase of the iron tailing powder is quartz. SEM analysis of the morphology of iron tailings powder revealed that after mechanical grinding, there are many small particles as well as some coarse particles with irregular shapes. III.
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