Utilization of iron ore tailings as fine aggregate in

Utilization of iron ore tailings as fine aggregate in ultra-high performance concrete Sujing Zhao⇑, Junjiang Fan, Wei Sun Jiangsu Key Laboratory of Construction Materials, School of Material Science and Engineering, Southeast University, Nanjing 211189, China

Utilisation of iron ore tailings as aggregates in concrete

2020-10-13  used. For the tailings concrete being studied, iron ore tailings were used together with the cement to make the new concrete. The iron ore tailings were obtained from Mount Gibson Iron Extension Hill Operations in Perenjori of Western Australia (WA). The particle–size distribution curve of the original tailings as obtained is shown in Figure 1.

Utilisation of iron ore tailings as aggregates in concrete

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.

An Experimental Study on Utilization of Iron Ore Tailings

adverse impact of indiscriminate mining of natural sand, iron ore tailings which is the waste products of mining industries is used as an alternative to the river sand in the manufacturing of concrete. The KIOCL company which was a leading company in India in the mining activities of iron ore has dumped about 200 million metric tons of iron ore

Utilization of iron ore tailings as fine aggregate in

2014-1-15  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 industry and had an apparent density of 2.62 g/cm 3.The chemical composition of the tailings is shown in Table 1.

(PDF) Utilization of tailings in cement and concrete: A

prehensive utilization of iron ore tailings Part 2: The residues after iron recovery from iron ore tailings to prepare cementitious material, Journal of Hazardous Materials 17 4(1-3) (2010) 78-83.

Comprehensive Utilization of Iron Ore Tailings in

Iron ore tailings comprehensive utilization is one of the word difficulties. Our first choice on iron ore tailingscomprehensive utilization is reprocess the tailings to recover valuable metal as much as possible. With there are more and more chemical natures in tailings, we not only need to improve the technology, but also need to manufacture

Effects of iron ore tailings on the compressive

2020-11-10  Utilization of iron tailings as substitute in autoclaved aerated concrete: physico-mechanical and microstructure of hydration products J. Clean. Prod.,127 ( 2016 ),pp. 162 171

Utilization of iron tailings as substitute in autoclaved

2016-7-20  As a by-product of iron ore, the iron tailings production ratio is 1:2.5–3.0 iron ore. By 2013, the total cumulative stockpiling of iron tailings in China was 5 billion tons and the number is keeping increasing as the rising of iron tailing emission, posing a severe threat to the environmental condition (Zhang et al., 2006).

Utilizing Iron Ore Tailing as Cementitious Material for

2021-4-7  The iron ore tailings have been applied as fine aggregates during the UHPC production, and the mechanical property of the designed UHPC is comparable to the control UHPC when the substitution of the natural sand is no more than 40% . In addition to being used as aggregates, the iron ore tailings can also be used as cementitious materials .

Utilization of Iron Tailings Sand as an Environmentally

The increasing annual emissions of iron ore tailings have proved a great threat to the natural environment, and the shortage of natural river sand, as well as the pursuit of sustainable development materials, provides motivation to reuse iron ore tailings as a fine aggregate in concrete. Due to the

CiteSeerX — UTILIZATION OF IRON ORE TAILINGS AS

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. It is found that as the IOT percentage increases in the mix workability is reduced.

Effect of Iron Ore Tailing on the Properties of Concrete

The successful utilization of 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. The sea borne trade in iron ore,

Utilization of Iron Ore Tailings as Raw Material for

The cement industry has for some time been seeking alternative raw material for the Portland cement clinker production. The aim of this research was to investigate the possibility of utilizing iron ore tailings (IOT) to replace clay as alumina-silicate raw material for the production of Portland cement clinker. For this purpose, two kinds of clinkers were prepared: one was prepared by IOT; the

Preperation of Foam Concrete with HuNan Iron Ore

Abstract: The main mineral component of HuNan ChenZhou iron ore tailings is quartz, fluorite, calcite, pyroxene, etc. The average particle size of the tailings is 0.15mm, -200 for the purpose of 6.30 percent.

Evaluation of the Iron Ore Tailings from Itakpe in

2014-3-4  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 %, and curing for periods 90 days in water. Characterization of the material showed that it has pozzolanic properties, and can be used as a retarder for hot-weather concreting.

Sustainable use of mine waste and tailings with suitable

2018-6-26  Utilization of mine waste rocks and tailings in concrete as aggregates will help in sustainable . and greener development. The literature shows the potential use of iron ore tailings as a replacement of . natural fine aggregates. As natural sand reserves are d. epleting day by day, there is a need for substitution for . sand in concrete.

Comprehensive Utilization of Iron Tailings in China

2018-12-1  Iron tailings are the main component of industrial solid waste, and their resource utilization has attracted the attention of the whole society. Based on the introduction of chemical mineral composition of iron tailings, the comprehensive utilization status of iron tailings is analyzed.

Comprehensive Utilization of Iron Ore Tailings in

Iron ore tailings comprehensive utilization is one of the word difficulties. Our first choice on iron ore tailingscomprehensive utilization is reprocess the tailings to recover valuable metal as much as possible. With there are more and more chemical natures in tailings, we not only need to improve the technology, but also need to manufacture

UTILIZATION OF IRON ORE TAILINGS AS

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. It is found that as the IOT percentage increases in the mix workability is reduced.

Utilization of tailings in cement and concrete: A review

2019-1-28  For example, the content of SiO 2 in phosphate tailings is 2.1, in contrast to the 75.23 in iron ore tailings. Even if there were all lead-zinc tailings or iron ore tailings, the variation content of SiO 2 is 15.50-69.92 in the lead-zinc tailings or 24.19-75.23 in the iron ore tailings. As a result, if tailings are only classified according to

Stabilization of iron ore tailings with cement and

2020-5-23  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 Fig. 3, the tailings were loosely dumped as piles; thus, their sampling did not necessitate any particular practice and merely involved filling bags with a hand shovel.A total number of 16 tailing samples, namely T1 to

Evaluation of the Iron Ore Tailings from Itakpe in

2014-3-4  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 %, and curing for periods 90 days in water. Characterization of the material showed that it has pozzolanic properties, and can be used as a retarder for hot-weather concreting.

Preperation of Foam Concrete with HuNan Iron Ore

Abstract: The main mineral component of HuNan ChenZhou iron ore tailings is quartz, fluorite, calcite, pyroxene, etc. The average particle size of the tailings is 0.15mm, -200 for the purpose of 6.30 percent.

Study on Utilization of Iron Ore Tailings as Fine

2019-7-1  the remaining 70% of waste iron ore tailing had to be dumped in the forested Lakya valley, across which a tailings dam was constructed. This dam now contains over 180 million tonnes of iron ore tailings. 1.1 Objectives Determining the physical and chemical properties of iron ore tailings.

Potential use of mine tailings and fly ash in concrete

2015-7-1  Strength property of concrete with use of iron ore tailings is studied in the present work. Currently, the major utilization of TM includes land reclamation, re-extraction of iron or other metals, and using them as raw ingredients in producing infrastructure materials, backfilling

Sustainable use of mine waste and tailings with

Utilization of mine waste rocks and tailings in concrete as aggregates will help in sustainable and greener development. The literature shows the potential use of iron ore tailings as a replacement of natural fine aggregates. As natural sand reserves are depleting day by day, there is a need for substitution for sand in concrete. A comprehensive overview of the published literature on the use

Sustainable use of mine waste and tailings with suitable

2018-6-26  Utilization of mine waste rocks and tailings in concrete as aggregates will help in sustainable . and greener development. The literature shows the potential use of iron ore tailings as a replacement of . natural fine aggregates. As natural sand reserves are d. epleting day by day, there is a need for substitution for . sand in concrete.

Comprehensive Utilization of Iron Ore Tailings in

Iron ore tailings comprehensive utilization is one of the word difficulties. Our first choice on iron ore tailingscomprehensive utilization is reprocess the tailings to recover valuable metal as much as possible. With there are more and more chemical natures in tailings, we not only need to improve the technology, but also need to manufacture