Study on the feasibility of using iron ore tailing (iot) on technological properties of concrete roof tiles

Eugênio, Tony Matheus Carvalho; Fagundes, Jefferson Francisco; Viana, Queilla Santos; Vilela, Alan Pereira; Mendes, Rafael Farinassi

doi:10.1016/j.conbuildmat.2021.122484

Cited by 22 publications

(6 citation statements)

References 77 publications

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“…However, too low a paste concentration may lead to reduced strength due to settlement and stratification. A higher cement content results in higher strength but also poorer flow properties [29][30][31]. Therefore, rheological experiments were used to test the flow properties of filling paste, ultimately determining the appropriate paste concentration, rubber particle size, and cement content, providing a foundation for subsequent research on the effect of rubber content on the mechanical properties of CPB [32][33][34].…”

Section: Methodsmentioning

confidence: 99%

Dynamic Loading Characteristics of Cemented Paste Backfill with Recycled Rubber

Li,

Wang,

Song

et al. 2024

Minerals

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The purpose of this study was to investigate the effect of the use of rubber powder from tire recovery on the dynamic loading performance of CPB. Finally, it is concluded that using recycled rubber material to backfill mine paste is helpful in reducing waste tire pollution and improving the impact resistance of the backfill body. The dynamic compressive strength, Dynamic Increase Factor (DIF), peak dynamic load strain, and dynamic load elastic modulus of the samples composed of slag, Portland cement, wastewater, and rubber powder were determined. Through the analysis of the experimental data, it can be seen that the recycled rubber reduces the dynamic compressive strength and DIF of the specimen but increases the peak dynamic load strain and dynamic load elastic modulus and other characteristics, and enhances the ability of the filled body to absorb elastic strain energy. The results show that recycled rubber can increase the deformation ability of the filler and improve the impact resistance of the filler. The results of this study provide valuable information and industrial applications for the effective management of solid waste based on sustainable development and the circular economy.

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Section: Methodsmentioning

confidence: 99%

Dynamic Loading Characteristics of Cemented Paste Backfill with Recycled Rubber

Li,

Wang,

Song

et al. 2024

Minerals

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“…The use of IOTs in concrete will benefit the treatment of solid waste (IOTs and RCA), as well as the dilemma of the growing shortage of raw materials in the construction industry. Previous studies have mainly focused on the influence of IOTs on the macroscopic mechanical properties of conventional concrete, as well as the evolution process and law of material or structural damage [ 17 , 18 , 19 ], while few studies have focused on the impact of IOTs on the microstructure of concrete. Meanwhile, RAC has disadvantages such as low strength, unstable durability, and large shrinkage compared with natural aggregate concrete (NAC).…”

Section: Research Significancementioning

confidence: 99%

The Mechanical Properties and Microstructure of Tailing Recycled Aggregate Concrete

Xu,

Li,

et al. 2024

Materials

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The aim of this study was to develop sustainable concrete by recycling concrete aggregates from steel waste and construction waste (iron ore tailings (IOTs) and recycled coarse aggregates (RCAs)) to replace silica sand and natural coarse aggregates. In experimental testing, the compressive strength, peak strain, elastic modulus, energy dissipated under compression, and compressive stress–strain curve were analyzed. Microscopically, scanning electron microscopy and energy-dispersive spectrometry were employed to investigate the microstructural characteristics of the interfacial transition zone (ITZ), and the results were compared with the ITZs of natural aggregate concrete and recycled aggregate concrete (RAC). In addition, the pore structure of concrete was determined by nuclear magnetic resonance. The results revealed that an appropriate IOT content can improve the ITZ and compactness of RAC, as well as optimize the mechanical and deformation properties of RAC. However, due to the presence of a smaller number of microcracks on the surface of IOT particles, excessive IOTs could reduce the integrity of the matrix structure and weaken the strength of concrete. According to the research, replacing silica sand with 30% IOTs led to a reduction in the porosity and microcracking which resulted in a much denser microstructure.

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“…Carvalho Eugênio et al (2021) has investigated at how utilizing iron ore tailing (IOT) influenced the physical, mechanical, thermal, and durability characteristics of concrete roof tiles made by extrusion. When compared to typical concrete roof tiles, adding more IOT resulted in considerable improvements in transverse breaking strength and porosity values.…”

Section: Concrete and Related Productsmentioning

confidence: 99%

Towards Sustainable Iron Ore Tailings Management: Exploiting Versatile Reuse Opportunities for Environmental and Economic Benefits

Kumar,

Sharma,

Tripathi

et al. 2024

Preprint

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Mining and refining of iron ore result in prodigious quantities of Iron Ore Tailings (IOTs), necessitating urgent adoption of sustainable management practices. Depleted iron ore reserves underscore the untapped value of IOTs’ iron content. To minimize waste generation and optimize resource utilization, efficient extraction of iron content from ores is imperative. Accurate identification of ore seams during or before mining mitigates gangue and waste accumulation, resulting in cost savings in material processing, refining, transportation, and disposal. Recycling IOTs from older processing lines into newer, more efficient ones presents a promising avenue for sustainable resource utilization. Available options for IOT reuse span various domains. IOTs serve as building materials (bricks, cement, concrete), providing cost-effective alternatives. Road construction, embankments, and structural fills utilize IOTs as construction materials. Additionally, IOTs demonstrate versatility in manufacturing processes, including ceramics, foam glass, and geopolymer-based materials. Applications in paints, pigments, slow-release fertilizers, and microcrystalline glass further expand the scope of IOT utilization. This study highlights the urgency of IOT reuse/recycling for environmental and economic reasons. It underscores the wealth of available reuse options, emphasizing recycling’s pivotal role in sustainable resource management. Examination of these potential applications charts the course toward environmentally conscious and economically viable management of IOTs. Article in AGU23 Website

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Study on the feasibility of using iron ore tailing (iot) on technological properties of concrete roof tiles

Cited by 22 publications

References 77 publications

Dynamic Loading Characteristics of Cemented Paste Backfill with Recycled Rubber

Dynamic Loading Characteristics of Cemented Paste Backfill with Recycled Rubber

The Mechanical Properties and Microstructure of Tailing Recycled Aggregate Concrete

Towards Sustainable Iron Ore Tailings Management: Exploiting Versatile Reuse Opportunities for Environmental and Economic Benefits

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