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 ...
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 .
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 .
WEBSep 22, 2018 · The world produced an estimated billion tonnes of iron ore during 2015 (Footnote 1 US Geological Survey, Mineral Commodity Summaries, January 2016).The fact that generation of tailing is about 10–15% of ore [] indies that more than billion tonnes of tailings are generated annually leading to increasing amount of .
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.
WEBDec 1, 2011 · Giri et al. [6] and Sakthivel et al. [14] synthesized magnetite powder out of iron and silica that is recovered from iron ore tailings, whereas Li et al. [10] demonstrated possibility of preparing ...
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].
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).
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 ...
WEBDec 15, 2022 · The iron ore tailings (IOTs) (< mm) were purchased from Laizhou Iron Mine in China. Main chemical composition of IOTs are shown in Table 1. Portland cement (PO ) was manufactured by Building Materials Co., Ltd. ... On the basis of hydration by amorphous SiO 2 and Al 2 O 3 on the surface of ultrafine iron tailings .
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 .
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 .
WEBMay 10, 2019 · The iron ore tailings (IOT) used in this work were collected from four Class III high environmental risk iron ore tailingsdams [26]. These (Fig. ) were selected based on the associated social and environmental potential risks, as well as economic relevance, as described in the dams inventory of the Minas Gerais State [27]. All four .
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.
![[PDF] Research on iron ore tailing improving Compressive .](/ukbm45s/413.jpg)
WEBNov 28, 2015 · The research on whether can iron ore tailing improve the compressive strength of alkali activated slag ing 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 .
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 ...
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 .
WEBApr 10, 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 . Expand. 2. PDF. 1 Excerpt; Save. Study on crack resistance of cementstabilized iron tailings.
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. .
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 .
WEBMay 18, 2023 · Iron tailings powder (ITP) is a kind of solid waste, which pollutes the environment, without any treatment. The appliion of ITP in cement concrete is a good choice. In this study, the influence of ITP on the flowability, compressive strength, chloride ion permeability and the attenuation of the performance of cement concrete during .
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.
WEBJun 7, 2021 · Particularly, iron ore tailings (IOT) as ordinary industrial solid waste in China is discharged and deposited. ... and YB/T 4561–2016 [28], there are three types of IOT: iron tailings powder, iron tailings super fine sand, iron tailings fine sand. However, in most previous researches, IOT mainly covers three egories: (i) iron tailings rock ...
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 .
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 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 .
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 .
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 .
WEBMar 1, 2024 · DOI: / Corpus ID: ; Effects of siliceous iron tailings powder on performances of interface transition zone in concrete article{Cheng2024EffectsOS, title={Effects of siliceous iron tailings powder on performances of interface transition zone in concrete}, author={Yunhong Cheng and .
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 .
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 .
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:
WEBNov 25, 2023 · Iron ore tailings (IOTs) are byproducts of the iron mining industry that have gained significant attention in recent years due to their potential for comprehensive utilization. ... Aluminum powder is the most commonly used ing agent in the production of AAC, and lime hydration provides the necessary alkaline environment for .
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 .
WEBApr 1, 2021 · 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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