Iron Ore Tailings As Fine Aggregate
Iron ore tailings were used as aggregate at different replacement levels to make UHPC. The tailings were characterized by techniques like SEM, XRD and nanoindentation. The mechanical properties of UHPC mortars and UHPC were measured.
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 as compared with similar work where only 20% of natural sand fine aggregates were replaced by iron ore tailings …
The iron ore tailings aggregates concrete exhibited a good mechanical strength and even in the case of compressive strength, there was an improvement of 11.56% over conventional aggregates concrete.
The present paper evaluates the technical and environmental feasibility of using iron ore tailings (IOTs) as fine aggregate in the production of interlocking concrete blocks. Initially, environmental, chemical, and physical characterizations of the tailings were carried out.
only river sand (RS) as fine aggregate served as the control mix, while sand was replaced in the other mixes by 20%, 40%, 60%, 80% and iron ore tailing (IOT). It was observed that the Iron …
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Experiments were conducted to determine the suitability of iron ore tailings and quarry dust as fine aggregates replacement of river sand for concrete production, and thereby to utilize the enormous quantities of wastes from Itakpe mines and the numerous granite quarries in Nigeria to address concerns of environmental pollution.
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 ...
The Influences of Iron Ore Tailings as Fine Aggregate on ... e present study looks for the feasibility of preparing UHPC with iron ore tailings (IOT for short) as ne aggregate. To enhance outstanding high performances, some in ... Iron ore tailings F : Grading curve of sands.
Tailings, also called mine dumps, culm dumps, slimes, tails, refuse, leach residue or slickens, terra-cone (terrikon), are the materials left over after the process of separating the valuable fraction from the uneconomic fraction of an ore.
iron ore tailing (IOT) as fine aggregate would turn this waste material into valuable resources, reduction in the strain on the supply of natural sand, and economy in concrete production. World production averages one billion metric tons of raw ore annually.
Iron ore tailings consists of ultra-fine iron ore particles having diameter less than 150 µm, hence generally discarded. Utilization of such mineral wealth is ... The successful utilization of iron ore tailing (IOT) as fine aggregate would turn this waste material into valuable resources, reduction in the strain on supply of natural sand and ...
ore tailings (IOTs) and crushed waste rock (CWR) as fine and coarse aggregates to prepare high strength concrete (HSC) with 28-day target compressive strength of 80 MPa.
B.Objectives B. To study the effect of iron ore tailings on the property of concrete when used as fine aggregate. To study the properties of concrete with bottom ash
Iron tailings are the rest parts of the original iron ore after choosing iron and If iron tailings are used as fine aggregate in concrete, which can. iron ore tailings as fine aggregate » Get Price Effect on Workability of Concrete due to Partial Replacement of…
Evaluation of the iron ore tailings from Itakpe in Nigeria as concrete material Elinwa Augustine Uchechukwu 1, Mbi Juliana Ezekiel2 1Civil Engineering Department, ... Fine aggregate replacement levels were 5 %, 10 %, 20 %, and 30 %, by mass of IOT and cement replacement levels
The Influences of Iron Ore Tailings as Fine Aggregate on the ... Aug 30, 2015 ... Introduction ... The management of iron ore tailings not only needs a lot of money, but also can cause serious impacts on the environment; how... Contact US. Effect of Partial Replacement of Sand by Iron Ore Tailings on ...
UTILIZATION OF IRON ORE TAILINGS AS REPLACEMENT TO FINE AGGREGATES IN CEMENT CONCRETE PAVEMENTS B N Skanda Kumar1, Suhas R2, Santosh Uttam Shet3, J M Srishaila4 1
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Iron ore tailings and crushed glass wastes have the potential to be used as fine aggregate because they are relatively inert and particle size of these wastes material is larger than that of the cement.
conventional cement and fine aggregate respectively. 2) Partial replacement of waste glass powder and iron ore tailings with cement and fine aggregate respectively and comparing the result with conventional concrete. 3) To determine the strength properties of concrete for 7, 28 and 56 days.
iron ore tailings to be considered as a structural fill material. The experiment was conducted in a model test tank in the laboratory varying the relative density of the tailings.
replacement of fine aggregates by iron ore tailings. The objective of this project is to study strength characteristics of geopolymer concrete using GGBS and iron ore tailings with the usage of alkaline activated solution contains sodium hydroxide and sodium silicate solution. ...
Advances in Materials Science and Engineering is a peer-reviewed, Open Access journal that publishes original research articles as well as review articles in all areas of materials science and engineering. ... The Influences of Iron Ore Tailings as Fine Aggregate on the …
Abstract: Iron ore tailing (IOT) is a waste product of Iron Ore after manufacture, the wastes are environmental unfriendly as it poses serious problem of disposal, but can be used as a replacement in concrete mixture. The aim of this research is to
Zhang et al. also investigated properties of concrete with iron ore tailings and manufactured sand as fine aggregate. They reported that the drying shrinkage of mixed sand is less than river sand concrete and with increase in IOT the drying shrinkage of mixed sand decreases.
Utilization of iron ore tailings as fine aggregate in ultra-high performance concrete Article in Construction and Building Materials 50:540-548 · January 2014 with 201 Reads DOI: 10.1016/j ...
that the replacement of natural aggregate by Iron ore tailings significantly replaced the workability and compressive strength of material. However …
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