Feasibility Study of Developing Green ECC Using Iron …
Industry and Information Technology of the People's Republic of China (MIITPRC) 2013]. Such underutilization of a natural resource (i.e., IOTs) not only places a heavy economic burden of …
A critical review on metallurgical recovery of iron from iron ore tailings
Fig. 2 illustrates the iron ore beneficiation process, particularly magnetic separation, resulting in the generation of inevitable tailings. Due to the characteristics of iron ores and the conditions during beneficiation, it is inevitable that approximately 2.5–3 tons of IOTs are generated for every 1 ton of iron ore concentrate produced [7].In 2019, the global annual …
Feasibility of iron-rich ore tailing as supplementary …
DOI: 10.1016/J.CONBUILDMAT.2021.124496 Corpus ID: 238675079; Feasibility of iron-rich ore tailing as supplementary cementitious material in cement pastes @article{Bezerra2021FeasibilityOI, title={Feasibility of iron-rich ore tailing as supplementary cementitious material in cement pastes}, author={Caroline G. Bezerra and Camila Aparecida …
Minerals | Free Full-Text | Recovering Iron from …
Iron ore tailings (IOTs) are a form of solid waste produced during the beneficiation process of iron ore concentrate. In this paper, iron recovery from IOTs was studied at different points during a process involving pre …
Utilization of high-sulfur iron ore tailings in cement mortar …
Standard sands (SS) and iron ore tailings sands (IOT) were used as the fine aggregates. The SS was produced by Xiamen ISO Standard Sand Co., Ltd. and the main quality indexes are listed in Table 2.It shows that the content of SiO 2 exceeds 98 % for the SS. The SS was dried by a drying oven (Subo, 101-00SB) at 105 °C for 24 h until reaching a constant weight.
CHAPTER II MINE TAILINGS 4 FACILITIES: OVERVIEW 3 2 …
mineral ore. Tailings consist of a slurry of ground rock, and water and chemical reagents that remain after processing. The composition of mine tailings varies according to the mineralogy of the ore deposit and how the ore is processed. The tailings are most commonly stored on site in a tailings storage facility. Storage methods for
Preparation and characterization of Portland cement clinker …
We report a type of high-magnesium and low-silicon iron ore tailings (IOT) utilized as a raw material replacing clay to produce cement clinkers by conventional sintering process. Properties of the cement clinkers sintered at 1420 °C with different IOT addition, from 0 to 20 wt%, were investigated.
Tungsten tailing powders activated for use as
1. Introduction. The mineral mining and processing generate numerous tailings after extract valuable minerals and abandon associated minerals [1], [2], [3].Approximately 7–10 tons of tungsten tailings is produced for per ton of tungsten concentrates depending on the tungsten ore grade and dressing level [4], [5].Tungsten as essential element for modern …
The Role of Chemical Activation in Strengthening Iron …
Furthermore, as a crucial component of the cement industry, chemical additives are frequently employed to regulate the characteristics of cement. These additives consist of diverse functional groups and chemical constituents that engage in the hydration process of cement, resulting in modifications in the binding and cement-solidifying ...
Technological properties of soil-cement bricks produced with iron ore
Request PDF | Technological properties of soil-cement bricks produced with iron ore mining waste | Soil-cement brick is a composite obtained by mixing soil, cement, and water in previously ...
chrome ore tailings in cement industry
Chrome Tailings Dump For Sale vanmorrisonpub. chrome ore tailings in cement industry. issn 6252 use of copper ore tailings as an, chrome ore tailings in cement industry, The results show that the replacements of ordinary Portland cement by copper industrial waste or by-products has become difficult and expensive as a country are copper ore ...
Effect of Iron Ore Tailing on the Properties of Concrete
Adedayo and Onitiri (2001) carried out research on Tensile Properties of Iron Ore Tailings Filled Epoxy Composites. They stated that the 30 % volume content of 300 µm particle size of iron …
Feasibility of iron-rich ore tailing as supplementary …
A R T I C L E I N F O Keywords: Iron ore tailing Sludge Filler Cement paste Rheology Hydration Calorimetry Thermal analysis Compressive strength Physical indexes A B S T R A C T The present work ...
Feasibility of Iron Ore Tailings in Geopolymer Concrete for
Iron ore tailings, a remnant of iron ore treating, are one such waste material that holds potential for sustainable applications in the construction industry. Activating industrial waste items like fly ash or slag results in GPC, a type of concrete that has developed as a more sustainable substitute for conventional Portland cement-based ...
Iron ore tailing (IOT) chemical composition and content …
Utilization of high-sulfur iron ore tailings in cement mortar by considering the influence of curing temperature and tailing content. Shibing Huang Zhijie Pi Chen Cai Hao Li. Engineering, Materials Science. ... Magnesium industry waste and red mud to eco-friendly ternary binder: Producing more sustainable cementitious materials ...
Preparation and characterization of Portland cement clinker …
DOI: 10.1016/J.CONBUILDMAT.2018.11.236 Corpus ID: 139908662; Preparation and characterization of Portland cement clinker from iron ore tailings @article{Young2019PreparationAC, title={Preparation and characterization of Portland cement clinker from iron ore tailings}, author={G. Young and Mei-Zhen Yang}, journal={Construction …
Preparation of composite micro-slag based on the …
The three-tailed slag mainly contains SiO 2, CaO, Al 2 O 3, etc., which can be used as Portland cement or concert to provide the required chemical components. And the phase analysis and appearance of the combination adopt gradient grinding technology, which makes it have a good application.. The composite micro-slag is composed of mixed grinding micro-slag …
Utilization of iron ore tailings with high volume in green …
Cement and aggregate can be simultaneously replaced in concrete with iron ore tailings of various particle sizes. • The mechanical properties and durability of concrete based …
Effect of iron ore tailings as partial replacement to fine
The concrete mix is designed as 1:1.62:3.25 (cement: sand: coarse aggregate) with a water-to-cement ratio (W/C) of 0.48. A total of six (6) mixes are developed by replacing 0%, 10%, 20%, …
Activation of hydration properties of iron ore tailings and …
Iron ore tailings (IOTs), ... or calcium aluminosiliceous materials. The cement industry is an industry that requires a larger quantity of raw materials and energy [9, 10]. At present, many of SCMs used in cement are mainly by-products of other industries, such as blast furnace slag, ...
Potential use of mine tailings and fly ash in concrete
2.1.1 Cement . The Ordinary Portland Cement (OPC) of 43 grade confir. ming to IS: 8112-1989 was used. The physical and chemical characteristics of cement used are presented in Table 1 and 2. Table 1 Physical properties of cement . Sl. No. Test conducted Results obtained Requirements as per IS Remarks 1 Specific gravity 3.10 -- W M Y 2 Normal
Activation of hydration properties of iron ore tailings and …
DOI: 10.1016/j.powtec.2019.11.002 Corpus ID: 209710086; Activation of hydration properties of iron ore tailings and their application as supplementary cementitious materials in cement
What are Tailings
A discussion of tailings dam construction is found in the SME Technical Paper "An Introduction to Tailings Facilities. i " Background. What are Tailings? Tailings are a by-product of mining. After ore containing an economically-recoverable commodity is mined from the earth, that commodity is extracted in a processing plant or mill.
Stabilization of iron ore tailings with cement and bentonite
Iron ore tailings. A number of representative iron ore tailing samples were acquired from different locations of the dry tailing disposal areas (cf. Fig. 2).As illustrated in …
Approach to the management of gold ore tailings via its …
Gold ore tailings can be used as a siliceous raw material for cement production. • The cement phases are 3CaO·SiO 2, 2CaO·SiO 2, 3CaO·Al 2 O 3, and 4CaO·Al 2 O 3 ·Fe 2 O 3.. The hydration products are portlandite, calcium silicate hydrate, and ettringite. The optimum addition of gold ore tailings in cement production is 5 wt%.
Use of iron ore tailings as partial replacement for cement on
The mining industry has been expanding and consequently increasing the associated environmental impacts, especially regarding this process's high volume of iron ore …
Feasibility Study of Developing Green ECC Using Iron …
Tailings Powder as Cement Replacement Xiaoyan Huang 1 ; Ravi Ranade 2 ; and Victor C. Li, F.ASCE 3 Abstract: This paper reports the results of an initial attempt of using iron ore tailings (IOTs ...
Feasibility Study of Developing Green ECC Using Iron Ore …
Xiaoyan Huang is supported by a grant from the Chinese Scholarship Council as a visiting scholar at the University of Michigan. The authors would like to acknowledge Lafarge …
Cemented paste backfill for mineral tailings management: Review and
In modern mining, waste material is often backfilled into underground voids or open pits after the precious minerals are extracted. Such backfill practice has been well adopted in various mining methods, i.e. cut-and-fill (Henderson et al., 1998), sublevel opening stoping (Emad et al., 2015), and open pit mining (Lu et al., 2018).Backfill has proven to be an environmental …
Concrete Made with Iron Ore Tailings as a Fine Aggregate: A …
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 greater fines content, the concrete with iron ore tailings aggregate would need more water to mix, which weakens the link between the aggregate and cement paste, and lowers the TS .