Experimental evaluation of cyclic performance of steel slag and grids of truck scrap tire as a novel reinforced ballast material

Tajabadipour, M.; Esmaeili, M.; Askari, A.

doi:10.1016/j.conbuildmat.2023.134472

Cited by 4 publications

(1 citation statement)

References 62 publications

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“…Steel slag is a by-product generated during the steelmaking process, with a production rate of approximately 10-15% of the crude steel quantity [1]. Large amounts of steel slag have been produced annually in many regions [2]. As a major steel producer in the world, crude steel production in China reached 1.01 billion tons in 2022 while producing more than 160 million tons of steel slag [3].…”

Section: Introductionmentioning

confidence: 99%

A Review on the Carbonation of Steel Slag: Properties, Mechanism, and Application

Wang,

Liu

et al. 2024

Materials

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Steel slag is a by-product of the steel industry and usually contains a high amount of f-CaO and f-MgO, which will result in serious soundness problems once used as a binding material and/or aggregates. To relieve this negative effect, carbonation treatment was believed to be one of the available and reliable methods. By carbonation treatment of steel slag, the phases of f-CaO and f-MgO can be effectively transformed into CaCO3 and MgCO3, respectively. This will not only reduce the expansive risk of steel slag to improve the utilization of steel slag further but also capture and store CO2 due to the mineralization process to reduce carbon emissions. In this study, based on the physical and chemical properties of steel slag, the carbonation mechanism, factors affecting the carbonation process, and the application of carbonated steel slag were reviewed. Eventually, the research challenge was also discussed.

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Section: Introductionmentioning

confidence: 99%

A Review on the Carbonation of Steel Slag: Properties, Mechanism, and Application

Wang,

Liu

et al. 2024

Materials

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Shear strength characteristics of mixing slag-stone ballast reinforcement with tire geo-scrap using large-scale direct shear tests

Esmaeili,

Heydari,

Mokhtari

et al. 2024

Railw. Eng. Sci.

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Utilizing the ballast layer with more durable and stable characteristics can help avoid significant expenses due to decreased maintenance efforts. Strengthening the ballast layer with different types of reinforcements or substituting the stone aggregates with the appropriate granular materials could potentially help to achieve this goal by reducing the ballast deterioration. One of the exquisite and most effective solutions to eliminate these challenges is to use waste materials such as steel slag aggregates and useless tires. Utilizing these waste materials in the ballasted railway track will contribute to sustainable development, an eco-friendly system, and green infrastructure. So in a state-of-the-art insightful, the ballast aggregates, including a mixture of steel slag and stone aggregates, are reinforced with a novel kind of geo-grid made of waste tire strips known as geo-scraps. This laboratory research tried to explain the shear strength behavior of the introduced mixing slag-stone ballast reinforced with tire geo-scrap. To achieve this goal, a series of large-scale direct shear tests were performed on the ballast which is reinforced by tire geo-scrap and included various combinations of slag and stone aggregates. The concluded results indicate that the optimal mixing ratio is attained by a combination of 75% slag and 25% stone aggregates which is reinforced by tire geo-scrap at a placing level of 120 mm. In this case, the shear strength‌, internal friction angle, vertical displacement, and dilatancy angle of stone–slag ballast reinforced with geo-scraps exhibited average changes of + 28%, + 9%, − 28%, and − 15%, respectively.

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A review of aluminosilicate sources from inorganic waste for geopolymer production: Sustainable approach for hydrocarbon waste disposal

Hanani Ismail,

Kusbiantoro,

Tajunnisa

et al. 2024

Cleaner Materials

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Experimental evaluation of cyclic performance of steel slag and grids of truck scrap tire as a novel reinforced ballast material

Cited by 4 publications

References 62 publications

A Review on the Carbonation of Steel Slag: Properties, Mechanism, and Application

A Review on the Carbonation of Steel Slag: Properties, Mechanism, and Application

Shear strength characteristics of mixing slag-stone ballast reinforcement with tire geo-scrap using large-scale direct shear tests

A review of aluminosilicate sources from inorganic waste for geopolymer production: Sustainable approach for hydrocarbon waste disposal

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