Sustainable handling of iron ore tailings is of prime concern to all stakeholders who are into iron ore mining. This study seeks to add value to the tailings by utilising them as a replacement for aggregates in concrete.

Mechanical properties and pore structure of recycled aggregate concrete made with iron ore tailings and polypropylene fibers. J. Build. Eng. (2021) ... and economic benefits of mine tailings-based geopolymer composites for building applications utilizing mine tailings as suitable concrete material. This review paper also highlights knowledge ...

iron ore tailings is discussed in this section. Research on green concrete is being done, and efforts are being made to find suitable marginal materials to replace cement and natural aggregates in concrete. Generally, the marginal materials used for replacement of cement are granulated blast furnace slag

The purpose of this research is to determine how well sand can stand in as a partial substitute for iron ore tailings without negatively impacting the microstructure, strength, …

The production of raw cement involves the extraction and procurement of raw materials like limestone and clay or iron ore. These materials are then crushed and finely ground to form the raw mix. The raw mix is then subjected to high-temperature heating in a kiln, reaching temperatures around 1400°C in a process called clinker.

2.1 Raw Materials. The cement used was Ordinary Portland Cement (P·O 42.5), which complied with the requirement of Chinese standard GB175-2007. The iron tailings (FN, PS, CD, BD, and LY) were selected from different regions in Hebei Province of China, as shown in Fig. 1, and the natural river sand (TR) was used to make a comparison.Their chemical …

This paper reports preliminary findings on the properties of concrete produced using iron ore tailings obtained from ZCM Minerals SDN BHD located in Kotta Tingi, Johor, Malaysia. 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. Based on British …

waste because of its accumulation and lack of suitable storage space. 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 ... (2013) [12] used iron ore tailings powder as cement replacement for developing green ...

Proceedings of the 9ICEG 9th International Congress on Environmental Geotechnics 25-28 June, 2023 | Chania, Greece Characterisation of Iron Ore Tailings as Fine Aggregates for Mortar and Concrete K. S. Nanjunda Rao1, S. N. Ullas2 and B V Venkatarama Reddy3 1Chief Research Scientist, Indian Institute of Science, Bangalore, India, email: [email protected] 2Director, …

This shows that the use of the iron tailing will not have negative effect on durability of the resulting concrete, the iron tailings is suitable for fine aggregates replacement up to 75% without ...

In the context of the comprehensive green transformation of infrastructure construction, utilizing bulk waste tailings materials, such as iron tailing, in cement-based …

However, as natural resources continue to deplete, the substitution of natural raw materials with industrial waste for ceramsite production is inevitable. The transformation of iron ore tailings (IOT) into structural ceramsites suitable for concrete applications has been previously documented [4, 6]. Currently, the industrial-scale production ...

For each region, the cost of obtaining iron ore suitable for DRI based on the national iron ore quality data was further estimated and combined with the labour cost and the output of the ...

At present, the cost of activation methods of IOT are high, and they are not suitable for use on a large scale. Therefore, optimizing the activation methods should be focus continuously. ... Experimental and statistical evaluations of strength properties of concrete with iron ore tailings as fine aggregate. J. Hazard. Toxic Radioact. Waste., 24 ...

One of the advantages of cement and the cement concrete industry in sustainability is the ability to utilize large amounts of industrial solid wastes such as fly ash and ground granulated blast furnace slag. Tailings are solid wastes of the ore beneficiation process in the extractive industry and are available in huge amounts in some countries. This paper reviews the potential …

The vibrated iron-ore concrete was thus deemed suitable for the purpose in question. The strength of vibrated iron-ore concrete is the same as, or somewhat higher than ordinary concrete. It may be reinforced with iron rods to the extent required, and has thus proved to be an excellent material for building con- ...

Iron ore tailing (IOT) is an industrial solid waste produced after beneficiation process of iron ores. It is a kind of fast accumulated waste due to the increasing demand for iron, steel and the relevant industries worldwide [1].The high demand for iron leads to the mining of iron ores with lower iron content, resulting in the increasing generation of tailings.

Engineers can gain from improving the soil by adding fibres, Iron Ore Tailings, and other elements. With a rise of 0.20% PPF to 0.60% and a constant 10% dose of Iron Ore Tailings by the weight of soil, numerous tests are conducted on …

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 a novel …

DOI: 10.1016/J.CONBUILDMAT.2021.122968 Corpus ID: 233575872; An evaluation of iron ore tailings characteristics and iron ore tailings concrete properties @article{Zhao2021AnEO, title={An evaluation of iron ore tailings characteristics and iron ore tailings concrete properties}, author={Jiangshan Zhao and Kun Ni and Youpo Su and Yun Xing …

Portland cement clinker is made by first heating limestone, shale, iron ore, and clay in a kiln to 2,700 to 3,000 degrees Fahrenheit. The resulting compound, known as clinker, is then finely ground along with gypsum, limestone, and other materials into portland cement. ... All of these base cement types are suitable for general concrete ...

However, to enhance the alternative raw materials revolution and advance sustainable cement technology, incorporation of iron into cement products must be increased, …

Comprehensive utilization of iron ore tailing in concrete has been extensively reported in the literature [13,14,15]. ... Atterberg limit values of soil reduced with increase in addition of mine tailings, making it suitable for subgrade material. Mine tailing stabilized lateritic soil was further improved by adding lime-cement binder. 70% of ...

Iron ore tailing stabilized with 5–15% of other additives such as cement and lime is found to be suitable for subbase and base layers in pavements. Structural fill could be the best application where huge quantity of tailing can be utilized.

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 …

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

Currently, approximately 1.4 billion tons per year of iron ore tailing wastes (IOT) are generated, mainly in Australia, Brazil, and China. This work describes the characterization and application ...

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-exploited.

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 …

Book publication information: