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Natural sand and iron ore tailings were used as aggregates. The natural sand was originally excavated from the lower reaches of Yangtze River and had an apparent density of 2.63 g/cm 3.The tailings were obtained from the local iron and steel …
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Cement and aggregate can be simultaneously replaced in concrete with iron ore tailings of various particle sizes. ... Utilization of iron ore tailings as fine aggregate in ultra-high performance concrete. Construct. Build. Mater., 50 (2014), pp. 540-548. View PDF View article View in Scopus Google Scholar
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Utilization of iron ore tailings as fine aggregate in ultra-high performance concrete. Constr. Build. Mater., 50 (2014), pp. 540-548. View PDF View article View in Scopus Google Scholar [12] E.A. Uchechukwu, M.J. Ezekiel. Evaluation of the iron ore tailings from Itakpe in Nigeria as concrete material.
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Proceedings of the 9ICEG 9th International Congress on Environmental Geotechnics 25-28 June, 2023 | Chania, Greece Characterisation of Iron Ore Tailings as Fine Aggregates …
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ore tailings and bottom ash as fine a ggregates in. concrete. They r eplaced fine aggregate with 10%, 20%, 30%, 40%, and 50% iron ore tailings and with …
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A concrete mix of M20 grade were prepared by replacing fine aggregate with iron ore tailing at replacement level 15%, 25%, and 35% and the optimum replacement percentage was obtained. Further ...
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Iron ore tailings (IOTs) are a form of solid waste produced during the beneficiation process of iron ore concentrate [7], and have been used by many researchers as a replacement for fine aggregate in concrete production [8][9][10][11], [12][13]–[16] This paper is about the review of various research works on the nature of IOT and its effects ...
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A concrete mix of M20 grade were prepared by replacing fine aggregate with iron ore tailing at replacement level 15%, 25%, and 35% and the optimum replacement percentage was obtained. Further ...
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Abstract – In this study, M20 grade of concrete was produced by complete replacing fine aggregate by Iron ore tailings, and GGBS as partial substitute to cement at 10%, 20%, 30% and 40%. The cubes were casted and their compressive strengths were evaluated at 7, 14 and 28 days. As the percentage increased the strength is also …
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For example, iron ore tailings was used by many researches to substitute fine aggregate in concrete [19] [20] [21][22], the findings of these investigations showed that concrete formulated with ...
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Characterization of iron ore tailings as fine aggregate. Iron ore tailings (IOTs) are common industrial solid waste products which are generated in enormous quantities during the production process of iron ore. By visual observation, this material shows some similarity with natural sand (NS); it was therefore desired to characterize the IOTs to ...
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Iron Ore Tailings as Partial Replacement for Fine Aggregate in Concrete Production – Review Abdulaziz Alhassan 1, Kudirat O. Yusuf 2, Adavi Aliyu Abdulazeez 3 and Salihu Usman 4
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Iron ore tailings, as fine aggregate, reduce capillary macroholes and improve mortar transitional zones compared to natural sand. According to Sunil et al., …
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Iron ore tailings (IOT) are the by-products of iron ore beneficiation, and these tailings are disposed of in several tons annually in quarries, landfills, and tailings dams, causing environmental issues. Various researchers have attempted to study the properties of IOT and the use of them in concrete as a building material.
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The use of industrial solid waste-iron ore tailings (nes) as aggregates has been found feasible. It has been seen that as the IOTs get bigger, the tensile strain capacity of mortar mixes goes down. Kangning et al. [43] examined ... Fine aggregate . Innovative Infrastructure Solutions (2024) 9:8 10) = the ; S =
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Abstract. In this study, the potential of converting iron ore tailings (IOTs) into sustainable building materials was explored. IOTs were combined with fly ash (FA) and …
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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 and the basic material properties, strength parameters are studied. ... In this study, M20 grade of concrete was produced by complete replacing fine …
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Concrete is the basic material in all construction works and fine aggregates constitute nearly 30-40% of the mix. But the procurement and generation of natural fine aggregates, i.e., sand is ...
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Iron ore tailings. Iron ore tailings (IOT) were obtained from one source in Johor; a southern. Mixture proportion. Table 3 shows mix proportions design in accordance to the exposure classes of BS EN206-1 [24] standard specification for grade C37 concrete. The coarse aggregate used was 10 mm single size. The designed water/cement ratio …
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For iron ore and concrete producers, using iron ore tailings as fine aggregate to produce concrete is an effective method of recovering iron ore tailings. Iron tailings can be made into iron tailing sand, which is mixed with conventional aggregates such as artificial sand to produce concrete that meets demand, such as C50 concrete.
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According to GB/T 31288–2014 [27] 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 categories: (i) iron tailings rock, used as coarse aggregate, of particle size >4.75 mm, is produced by ...
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However, the tensile strength exhibited by the iron ore tailings aggregates concrete in this work increased favourably with ageing and there is 4.8% improvement …
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The present study looks for the feasibility of preparing UHPC with iron ore tailings (IOT for short) as fine aggregate. To enhance outstanding high performances, some influences on UHPC mortars ...
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The fine aggregate (river sand) and coarse aggregates used for this study were natural and locally sourced. A Polycarboxylic ether based superplasticizer that …
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Iron ore tailings have the potential to be used as fine aggregate because they are relatively inert and the particle size of the tailings is significantly larger than that of cement. This paper investigated the use of iron ore tailings to replace natural sand as fine aggregate and studied the impact that various replacement levels had on the ...
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DOI: 10.14359/51720305 Corpus ID: 213665269; Characterization of Iron Ore Tailings as Fine Aggregate @article{Oritola2020CharacterizationOI, title={Characterization of Iron Ore Tailings as Fine Aggregate}, author={Sikiru Folahan Oritola and Abd.
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The Influences of Iron Ore Tailings as Fine Aggregate on the Strength of Ultra-High Performance Concrete ZhigangZhu,BeixingLi,andMingkaiZhou State Key Laboratory of Silicate Materials for Architecture, Wuhan University of Technology, Wuhan, China Correspondence should be addressed to Beixing Li; libx@ ReceivedMarch ; …
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When compared to reference concrete, the TS shown by the concrete with iron ore tailings aggregate improved by 4.8% with age . However, because of the …
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To investigate the application of iron tailings in cement-based 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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The Iron Ore Tailings (IOT's) a waste product, with particle size range from (850μm - 75μm) obtained from Iron Ore Processing was utilized as fine aggregate to produce concrete.
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