Experimental and Statistical Evaluations of Strength Properties of Concrete with Iron Ore Tailings as Fine Aggregate

Chinnappa, Gayana Bangalore; Karra, Ram Chandar

doi:10.1061/(asce)hz.2153-5515.0000480

Cited by 22 publications

(5 citation statements)

References 14 publications

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“…The produced iron tailings severely pollute the environment and occupy a relatively large land area. Various studies have shown [2][3][4][5] that iron tailings are increasingly used in the concrete industry as cement clinkers, coarse or fine aggregates, and mineral admixtures. Therefore, to protect the environment and ensure the effective waste utilization of iron tailings, they can potentially be applied in concrete preparation instead of natural sand.…”

Section: Introductionmentioning

confidence: 99%

Carbonation Resistance and Pore Structure of Mixed-Fiber-Reinforced Concrete Containing Fine Aggregates of Iron Ore Tailings

et al. 2022

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The disposal of industrial by-product tailings has become an important issue in solving environmental pollution. In this study, 15%, 30%, 50%, and 70% iron tailings were used to replace the natural sand in concrete, and 1.5% steel fiber and 0–0.75% PVA fibers were added to the iron tailings concrete. The effects of the iron tailings replacement rate and the fiber content on the mechanical properties, carbonization depth, and concrete porosity were studied in a carbonization environment. The results demonstrated that the compressive and splitting tensile strengths of concrete first increased and subsequently decreased with an increase in the iron tailings replacement rate, while the carbonation depth and porosity initially decreased and subsequently increased. When the replacement rate of iron tailings was 30%, the compressive strength and split tensile strength were increased by 7.6% and 17.7%, respectively, and the porosity was reduced by 8.9%. The compressive strength, carbonation depth and porosity of single-doped steel-fiber concrete were superior to those of ordinary iron tailings concrete. However, compared with single-doped steel fiber, the performance of steel-PVA fiber was further improved. Based on the mechanical properties, the carbonation depth test results of the three aforementioned types of concrete, the mathematical expression of the uniaxial compression stress–strain curve of iron tailings concrete, and the prediction equation of the carbonation depth of mixed-fiber iron tailings concrete were proposed. This study provides a reference for the application and popularization of fiber-reinforced iron tailings concrete in carbonization environments.

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Section: Introductionmentioning

confidence: 99%

Carbonation Resistance and Pore Structure of Mixed-Fiber-Reinforced Concrete Containing Fine Aggregates of Iron Ore Tailings

et al. 2022

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“…Hence, as previously mentioned, using FA or GGBFS along with IOT becomes necessary. However, due to the ease and abundance of its availability and to promote waste management, many researchers have also investigated the use of high-volume IOT as fine and coarse aggregates [101][102][103][104] for concrete production, and the results are promising.…”

Section: Fa-iot-based Geopolymer Bindermentioning

confidence: 99%

Sustainable Fly Ash Based Geopolymer Binders: A Review on Compressive Strength and Microstructure Properties

et al. 2022

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As a result of global warming, the pursuance of low-carbon, sustainable building materials has been prioritized. The development of geopolymer/cement-less binders can be considered an innovative and green way forward to minimize carbon footprint and tackle industrial waste material utilization. However, the chemical composition and properties of industrial waste-derived geopolymer binders varies considerably based on the chemical compositions of the source materials. This review paper presents a comprehensive understanding of the role of different chemical compositions (namely SiO2, Al2O3, CaO, Fe2O, and MgO) available in contemporary industrial wastes and the development of geopolymer binders. Subsequently, the compressive and microstructure properties of various FA-based geopolymer binders have been discussed to exhibit the feasibility of FA as a reliable source material. Significant findings and research gaps have been considered to aid future research works. Indeed, they provide guidelines for the commercial implementation of FA-based geopolymer binders as a low-carbon alternative to Portland cement.

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“…The total recoverable iron ore resources in India are around 9602 million tons of hematite and 3408 million tons of magnetite. The use of iron ore is rising by 10% globally [8].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Evaluation of Sustainable Concrete Used in a Concrete Pavement that Production from Iron Filling Waste

salman,

Al-Jumaili

2023

E3S Web Conf.

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In this research used iron filling as partial replacement fine aggregate at percent 5,10, and 15% by weight of fine aggregate and maintaining the ratio of water to cement at 40% and study observe that produces concrete with high compressive strength, tensile and flexural strength at replacement percent I10% and production of concrete with a lower coefficient of thermal expansion with continued replacement and thus obtaining the maximum distance between expansion joints at the rate of addition of I15%.

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Experimental and Statistical Evaluations of Strength Properties of Concrete with Iron Ore Tailings as Fine Aggregate

Cited by 22 publications

References 14 publications

Carbonation Resistance and Pore Structure of Mixed-Fiber-Reinforced Concrete Containing Fine Aggregates of Iron Ore Tailings

Carbonation Resistance and Pore Structure of Mixed-Fiber-Reinforced Concrete Containing Fine Aggregates of Iron Ore Tailings

Sustainable Fly Ash Based Geopolymer Binders: A Review on Compressive Strength and Microstructure Properties

Mechanical Evaluation of Sustainable Concrete Used in a Concrete Pavement that Production from Iron Filling Waste

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