The co-product of transforming iron ore or sinter to steel in the blast furnace/oxygen steel-making route (or the melting of scrap metal into steel in an electric-arc furnace), ... Slags can be used as aggregates for concrete and road pavement, hydraulic ... SI-Fig. 1 shows the internal recycling utilisation rate of Japan and Europe over 2000 ...

Therefore, the resource utilization and harmless disposal of MSWI fly ash can be realized through iron ore sintering process. ... and even the corrosion of steel reinforcement in reinforced concrete structures (Clavier et al., 2019 ... Clean recycle and utilization of hazardous iron-bearing waste in iron ore sintering process. J. Hazard …

Millions of tons of iron ore tailings (IOT); a by-product of iron ore processing, are disposed of every year in landfills, quarries, rivers, oceans among others thereby …

However, the current reclaiming ratio of waste steel in China is still low due to lack of advanced slag treatment equipment and technology. 3.1.2. Utilization as sinter material Steel slag with CaO content above 50% can be used as sinter ore fluxing agent, partially replacing the commercial lime.

Utilisation of iron ore tailings as aggregates in concrete. Francis Atta Kuranchie., Sanjay Kumar Shukla., Daryoush Habibi. & Alireza Mohyeddin. |. Anand J. …

A concrete mix containing 25% iron ore tailings gives higher compressive strength than the reference concrete . The results indicate that concrete workability decreased with a rise in the content of iron ore tailing-alccofine and that the average compressive strength was 70, 68.67, and 65Mpa at 40%, 30%, and 20%.

Utilization of Industrial Waste in Concrete Mixes—A Review. Rajwinder Singh, Vaibhav Chaturvedi, Ankit Kumar Chaurasiya & Mahesh Patel. Conference paper. …

1. Introduction. In recent years, steel production has increased significantly to meet the construction industry demands. This has resulted in the generation of huge amount of iron ore tailings (IOT) which are disposed of as waste in landfills, quarries, rivers, oceans, etc. Malaysia produces millions of tons of IOT.

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 …

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-concentration followed by direct reduction and magnetic separation. Then, slag-tailing concrete composite admixtures …

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

Concrete is the most widely used construction material, several sustainable materials are under investigation to reduce the impact of its production processes, by …

This study is a follow-up of nickel slag waste used for building construction materials. Paving blocks were made using a mixture of cement and aggregates in a ratio of 1: 3 and 1: 5 which used a ...

1. Introduction. More than 30 million tons of ferronickel slag (FNS) are annually discharged in China. FNS has become the fourth largest type of smelting industrial waste after blast furnace slag, steel slag and red mud (Huang et al., 2017).FNS is found to be useful in many applications, such as metal recycling (Zulhan and Agustina, 2021; Gu …

for iron ore as a number of steel plants have been planned for future in many parts of the country. In order to reduce the 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.

[32]. Concrete could substitute waste materials for cement to reduce CO2 emissions. Owing to worries about potentially hazardous social and environmental effects of waste, …

Piles of steel slag, a solid waste generated from the iron and steel industry, could be seen due to no utility found for the past century. Steel slag has now gained much attention because of its new applications. The properties of slag greatly influence its use and thus had got varied applications. The chemical composition of steel slag varies as …

In order to alleviate environmental pressures and attain sustainability, one feasible solution is to reuse waste materials as secondary resources. In this regard, the concrete industry has already absorbed millions of tons of industrial by-products that contain toxic elements [1]. The iron and steel industry is one of the major industries in …

The results indicate that concrete workability decreased with a rise in the content of iron ore tailing-alccofine and that the average compressive strength was 70, 68.67, and …

The potential of using waste in autoclaved aerated concrete has been studied by [68], coal bottom ash by [69], silica fume and fly ash by [70], industrial and agricultural waste by [71], perlite ...

The present study investigates the effects of utilizing dumped waste as a practical resource for making concrete. In this regard, waste marble powder used a filler material replacing a smaller constant portion of cement, dumped iron ore tailings (IOT) were used as a partial replacement for fine aggregate in different proportions.

Iron ore tailings (IOTs) are byproducts of the iron mining industry that have gained significant attention in recent years due to their potential for comprehensive utilization. This study investigates how blending steel slag with IOTs (a siliceous raw material) instead of lime (a calcareous raw material) affects slurry ing properties, mechanical properties, …

The stockpiling of IOTs occupies a large amount of land and seriously pollutes the ecological environment, moreover, the tailings dam is undoubtedly a great safety hazard [1,2,3].According to relevant statistics, the global steel industry consumes about 2 billion tons of iron ore, 1 billion tons of metallurgical coal, and 575 million tons of scrap steel to …

The major aim of this study is to evaluate IOT as replacement for river sand in concrete and compare with the result of conventional concrete. Concrete mixtures containing 25%, 50%, 75% and IOT as river sand replacement were prepared with 0.5 water-to-cement ratio (W/C). Compressive and splitting tensile strengths, modulus of …

Construction and Demolition Debris: A large and varied waste stream that includes concrete, asphalt, wood, gypsum, and asphalt shingles generated from the construction, renovation, and demolition of buildings, roads, bridges, and dams. Industrial Materials: By-products of industrial processes. Recycling:

The amendment of cementitious binders with waste materials aids as a path to reduce the volume of waste and carbon emission. This review summarizes the current state of practice for cementitious binder fabrication in favor to the utilization of waste materials such as waste concrete powder (WCP), coal bottom ash (CBA) and steel …

As examples of previous studies with the same purpose, we can mention the reviews on steel slag (Martins 2021), iron ore tailings (Zhao et al. 2021), waste glass (Mohajerani et al. 2017, plastic ...

A scientometric review of waste material utilization in . Keywords cooccurrence analysis showed that the top 5 most frequently used keywords in the field of waste material utilization in concrete were compressive strength, concretes, concrete, recycling, and cementsIn this research work an attempt is made to utilize the steel slag as partial …

It should be highlighted that concrete made with 12% iron waste had a 15% higher CS than regular concrete after 28 days. The mix ratio was primarily intended to provide 33 MPa at 28 days, but more may be achieved at 7 days by adding 12% iron …

Due to exponential growing in urbanization and industrialization, byproducts from industries are becoming an increasing concern for recycling and waste management. Ground granulated blast furnace slag (GGBS) is by-product from the blast-furnaces of iron and steel industries. GGBS is very useful in the design and development of high-quality …