Sodium oxalate activation of basic oxygen furnace slag for building materials

Franco Santos, Winnie; Botterweg, Jan-Joost; Chaves Figueiredo, Stefan; Schollbach, Katrin; van der Laan, Sieger; Brouwers, H.J.H.

doi:10.1016/j.resconrec.2023.107174

Cited by 9 publications

(1 citation statement)

References 46 publications

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“…Steel slag mainly consists of CaO, SiO 2 , Fe x O y (Fe 2 O 3 /FeO/Fe), Al 2 O 3 , and MgO, with the remaining minor oxides such as MnO, P 2 O 5 , Na 2 O, SO 3 , etc., which are similar to those of Portland cement [32,33]. However, due to the diversity of iron ore, additives, steelmaking methods, and cooling processes, the chemical composition of BOF slag fluctuates greatly, as shown in Table 1.…”

Section: Physical and Chemical Properties Of Steel Slagmentioning

confidence: 68%

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: Physical and Chemical Properties Of Steel Slagmentioning

confidence: 68%

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

Wang,

Liu

et al. 2024

Materials

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Recycling Bottom Ash and Steel Slag Containing CaO into Electrically Insulating and Heat‐Dissipating Thermal Interface Materials

Kang,

Hong

et al. 2024

Adv Energy and Sustain Res

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Bottom ash (BA) and steel slag (SS) wastes are generated in large quantities and primarily recycled as raw materials for concrete. However, the influx of expansive components can cause pop‐outs in concrete and reduce the mechanical properties of concrete, prompting the need for alternative recycling methods. Herein, as a new method of recycling BA and SS, an electrically insulating and thermally conductive thermal interface material (TIM) is proposed by incorporating BA or SS filler into a polymer. CaO, which has historically been an obstacle to efficient recycling BA and SS into concrete, is found to improve the thermal conductivity of TIMs. The resulting TIMs exhibit both effective electrical insulation (<2.99 × 10−9 S m−1) and thermal dissipation (3.64 W m−1 K−1) properties. The proposed recycling method based on BA and SS can contribute to the development of low‐cost, electrically insulating, and heat‐dissipating TIMs.

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Enhanced mechanical property of steel slag through glycine-assisted hydration and carbonation curing

Kim,

Jeon

et al. 2024

Cement and Concrete Composites

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Sodium oxalate activation of basic oxygen furnace slag for building materials

Cited by 9 publications

References 46 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

Recycling Bottom Ash and Steel Slag Containing CaO into Electrically Insulating and Heat‐Dissipating Thermal Interface Materials

Enhanced mechanical property of steel slag through glycine-assisted hydration and carbonation curing

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