Critical state analysis of two compacted filtered …
The probability of failure of tailings dams and associated risks demand improvements in engineering practice. The critical state line provides a robust framework for the characterization of mine ...
FUTMinna Institutional Repository: Properties of Itakpe Iron Ore
The output of the physical properties, oxide composition and sieve analysis of Itakpe iron ore tailings reveals that it has similar properties which are close in comparison to that of natural sand. This suggest that Itakpe iron ore tailings can be used to partially or fully replace natural sand in concrete, mortar and some other construction ...
Iron Ore Tailings: Characterization and Applications
Main chemical composition obtained by XRF (X-ray uorescence) of dif ferent iron ore tailings (IOT) Main chemical composition / % Mine location Reference Fe 2 O 3 SiO 2 Al 2 O 3 CaO MgO Other compounds
machines that extract iron from tailings without chemicals
chemical analysis of itakpe iron ore tailings. machines that extract iron from tailings without chemicals. Waste rock and tailings at the Kiruna Iron Mine containing chemicals used during Enormous machines extract 26 million tons of iron ore from >Get Price; processing / beneficiation / crusher machine supplier. chemical analysis of itakpe iron ore tailings. chemical washing …
Recovering fine iron minerals from Itakpe iron ore …
The Itakpe iron ore processing plant in Nigeria presently produces a tail sometimes containing up to 22% iron minerals mostly natural fines in the ore and fines produced inevitably during …
FLEXURAL BEHAVIOUR OF CONCRETE BEAMS …
and split tensile behavior of concrete with IOT that was sourced from itakpe Kogi state in different proportions with respect to age of concrete. Test on the mechanical properties of ... 2.1 Previous Research on the use of Iron Ore Tailings in Concrete 6 2.2 Composition of Normal Strength Concrete 12 2.2.1 Aggregates 13 2.3 Flexural Strength of ...
Tensile properties of iron ore tailings filled epoxy …
The iron ore tailings were dried at a temperature of 30 ± 2°C for a minimum of 40 h prior to testing [37,38], while particles of different sizes (see Table 1) were obtained using standard ASTM ...
Geochemical Evaluation of Itakpe Iron Ore Mine Tailings, …
The chemical analyses show that the tailings are weakly acidic and neutral with low organic matter. The energy dispersive x-ray fluorescence spectroscopy analysis of the samples shows that they contain high concentrations of Fe2O3, SiO2, and other trace compounds.
Evaluation of the Iron Ore Tailings from Itakpe in
Request PDF | On Jan 1, 2014, Elinwa Augustine Uchechukwu published Evaluation of the Iron Ore Tailings from Itakpe in Nigeria as Concrete Material | Find, read and cite all the research you need ...
Geochemistry and distribution of heavy metals from …
required iron ore to the Ajaokuta iron and steel company. Author for Correspondence-E.G. AMEH Department of Earth Sciences, Kogi State University, Anyiba, NIGERIA Email : enewin@yahoo Itakpe iron ore deposit consists of two mine sites-one on the east and the other on the west. The eastern mine has been abandoned and not accessible. Within ...
Suitability of Iron Ore Tailings (IOT) in Building Construction
IJESC, 2019. Iron Ore Tailings (IOT) are the waste slag resulted from iron ore mines. Large amount of Iron Ore Tailings (IOT) have been generating every year posing serious environmental problems, large production of cement everyday resulting the emission of CO 2 and increase in the consumption of river sand for construction activities making the river beds over …
CHEMICAL AND MINERALOGICAL CHARACTERIZATION …
Samples of Itakpe Iron Ore waste dump (tailings) were collected using random sampling method from different locations at the tailings dump sites of National Iron Ore Mining Company
[PDF] Evaluation of the Iron Ore Tailings from Itakpe in …
Characterization of the Itakpe iron ore tailings showed that it has pozzolanic properties, and can be used as a retarder for hot-weather concreting, and could be used to predict relationships of IOT-OPC concrete. An evaluation of the Itakpe iron ore tailings (IOT) for concrete production has been carried out using the material to replace sand and cement, in …
(PDF) The economic potential of the African iron-ore tailings
Hematite (Fe2O4) to magnetite (Fe3O4) conversion of Fe‑ore tailings In many cases, the Fe-ore tailings are dumped as overburden from the Fe ore mining and production industries due to the high production growth in the Fe and steel industries in Africa. Itakpe Fe ore in Nigeria produces about 36% ore on average from 200 million tons.
Basic characteristics and environmental impact of iron ore tailings
Iron ore tailings (IOTs) ... To determine the occurrence state of iron in the samples, iron chemical phase analysis was conducted. The results are shown in Table 2. We can see that the iron in IOTs is mainly in the form of silicate iron and the distribution rate of iron is 81.29%. Then come the magnetite and carbonate with the iron distribution ...
Utilization of sulfur iron ore tailing (SIOT) in GGBS …
A series of laboratory tests were conducted to investigate the possibility of using sulfur iron ore tailings (SIOT) in GGBS-metakaolin based alkali-activated mortar (AAM) as grouting material. ... The main chemical components of mine tailings are Si, Al, Fe, etc., which have potential volcanic ash activity [2] ... (SEM) and Energy Dispersive X ...
Ecological engineering of iron ore tailings into useable soils …
Billions of tons of mine tailings are generated annually from extracting and processing of metal and mineral ores, 1, 2, 3 stockpiled in about 4,800 mine tailings storage facilities (TSFs), 4 occupying >240,000 ha of land worldwide. 4 Iron (Fe) ore tailings are one of the most challenging global tailings liability, 5 with over 1.4 billion tons of tailings generated …
Evaluation of iron ore tailings as replacement for fine aggregate in
Iron ore tailings were also used in other concrete applications. For example, Das et al. [13] studied the use of IOT to develop ceramic tiles and their study showed, that tiles produced at a maximum of 40% of IOT were superior in terms of scratch hardness and strength, compared to European standard specifications. In a related research, Yao et al. [14] produced …
Characterisation of Iron Ore Tailings as Fine Aggregates …
researchers have examined utilization of iron ore tailings as raw material to make value added construction products. The main focus of these studies was on further beneficiation possibilities and utilization of silica present in tailings as raw material in ceramic industry (Ghosh & Sen, 1999; Das et al., 2000).
Evaluation of the iron ore tailings from Itakpe in …
The iron ore tailing (IOT) used for this work was sourced from Itakpe Iron Ore processing plant in Ajaokuta, Kogi State, Nigeria, and was designed to supply 2.15 million tones of 63 % to 64 % grade concentrate of iron (Fe) per …
Optimization Studies of Iron Ore Tailings Powder and …
Available online at Civil Engineering Journal (E-ISSN: 2476-3055; ISSN: 2676-6957) Vol. 9, No. 12, December, 2023 3075 Optimization Studies of Iron Ore Tailings Powder and ...
Characterisation and magnetic concentration of an iron ore tailings
Therefore, the crude sample of Itakpe Iron Ore dumped tailings is a haematite rich mineral and has been found to be coarsely packed and interlocked with magnetite and silica with silica as major impurity. However, easy liberation was facilitated by communition due to the coarsely packed nature of ore matrix.
[PDF] Evaluation of the Iron Ore Tailings from Itakpe in …
An evaluation of the Itakpe iron ore tailings (IOT) for concrete production has been carried out using the material to replace sand and cement, in proportions of 5 % up to 30 …
COMPRESSIVE STRENGTH OF CONCRETE CONTAINING …
COMPRESSIVE STRENGTH OF CONCRETE CONTAINING ITAKPE IRON ORE TAILINGS *Isyaku, M. A., Oritola, S.F., Abbas, B. A. Department of Civil Engineering, Federal University of Technology, PMB 65 ... Sieve analysis test (BS 812, 1985), determination of moisture content (BS 812-109, 1990) and specific gravity test (BS 812-2, 1990) ...
Critical State Analysis for Iron Ore Tailings with a Fine …
It should be noted that the geo-chemical processes in mine tailings have a great influence on their geo-mechanical behaviors [43,44,45]. However, due to the long-term effects …
(PDF) CHEMICAL AND MINERALOGICAL …
Samples of Itakpe Iron Ore waste dump (tailings) were collected using random sampling method from different locations at the tailings dump sites of National Iron Ore Mining Company …
Critical State Analysis for Iron Ore Tailings with a Fine …
It should be noted that the geo-chemical processes in mine tailings have a great influence on their geo-mechanical behaviors [43,44,45]. However, due to the long-term effects of the geo-chemical process, it is difficult to reproduce such processes in laboratories. ... "Critical State Analysis for Iron Ore Tailings with a Fine-Grained Interlayer ...
Ore-Waste Classification pXRF
Samples of Itakpe Iron Ore waste dump (tailings) were collected using random sampling method from different locations at the tailings dump sites of National Iron Ore Mining Company (NIOMCO) in Itakpe, Kogi State, Nigeria and properly homogenized to give the head sample. ... the time taken by the laboratory to generate the chemical analysis is ...
Geochemical Evaluation of Itakpe Iron Ore Mine Tailings
Tailings from the mine waste dumps at Itakpe iron ore mine were collected and analysed in the laboratory to determine their chemical and physical characteristics and these …
(PDF) Characterisation of Tailings from Itakpe Iron Ore Mine, …
Geochemical speciation with quantitative X-ray powder diffraction was used to evaluate the chemical and mineral composition of Itakpe iron ore tailings. The aim is to offer base line data …