Study on the fresh and hardened properties of concrete with steel slag as partial replacement for natural aggregates

Murmu, Meena; Mohanta, Nihar Ranjan; Bapure, Nikhil

doi:10.1016/j.matpr.2023.03.151

Cited by 15 publications

(3 citation statements)

References 20 publications

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“…Presently, the world witnesses economic growth propelled by its industrial and urban advancements [1]. Consequently, an increasing number of industries are generating waste [2][3][4], which needs to be recovered to prevent landfill deposition and mitigate adverse environmental impacts.…”

Section: Introductionmentioning

confidence: 99%

“…Due to the large number of foundry wastes available, in recent years, many researchers have developed works searching solutions for foundry wastes, essentially foundry sand [21][22][23][24][25][26][27][28] and iron and steel foundry slags [1,17,[29][30][31][32], but few studies have been conducted with wastes from the precision or lost wax casting industry. Guney et al [23] conducted an assessment of the feasibility of reusing foundry sand waste in high-performance concrete.…”

Section: Introductionmentioning

confidence: 99%

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Performance of Eco-Friendly Cement Mortars Incorporating Ceramic Molds Shells and Paraffin Wax

Cunha,

Silva,

Aguiar

et al. 2023

Materials

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The lost wax foundry industry has been rapidly expanding in recent years, generating a large amount of waste due to the fact that most of the durable goods include castings and the need for dimensional precision castings for specific purposes, such as the automotive and aeronautics sectors. The waste produced by this industry is currently being deposited in landfills because practical applications are not known and cannot be reused in a new production process, and recycling is also a challenge because of the economics of the process. Thus, the main objective of this study consists in the incorporation of the produced wastes by the lost wax casting foundry industry (ceramic molds shells and paraffin wax) as substitutes for natural aggregate in exterior coatings mortars, evaluating their behavior under normal operating conditions and against freeze–thaw actions. The obtained results revealed porosity, flexural strength, and compressive strength adequate under normal operating conditions. The freeze–thaw performance of the mortars with waste incorporation was similar to the mortars developed with natural aggregates. Thus, the potential of the ceramic mold shells and paraffinic waxes utilization in cementitious mortars for the construction sector was demonstrated.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Performance of Eco-Friendly Cement Mortars Incorporating Ceramic Molds Shells and Paraffin Wax

Cunha,

Silva,

Aguiar

et al. 2023

Materials

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“…The use of steel slag improves the mechanical properties of concrete after an aging time of 30 months. This time is sufficient to complete the interactions of free calcium and magnesium oxide with water, which contributes to the volumetric stability of the steel slag [20]. As it enhances the compressive strength by 20.55% and the tensile strength by 10.55% at the replacement ratio of 40% [21], steel slag can be used as fine and coarse aggregates with specified replacement ratios.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Physical and Mechanical Characteristics of Refractory Concrete Using Heat-Treated Steel Slag Coarse Aggregates

Alkhedr,

Asaad,

Ismail

et al. 2023

Infrastructures

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The aim of this study is to compare the properties of refractory concrete made with thermally treated and untreated steel slag. Five concrete compositions were prepared and investigated in the present work. The first mixture, referred to as the reference, was formulated using dolomite aggregates, whereas the second and third mixtures were developed by replacing natural coarse aggregate with 50 and 100% by weight of thermally untreated steel slag, respectively. The same replacement ratio (50% and 100%) of thermally treated steel slag was used to produce the fourth and fifth mixtures. Specimens of each specimen were placed in a furnace and heated to 400 °C and 800 °C. The mass loss for all the specimens heated to 400 °C was about 8%, while the reference suffered the maximum mass loss at 800 °C, which was 21.6%. The mixture with a 100% substitution of thermally treated steel slag produced the maximum compressive strength when compared to other mixtures at a temperature of 800 °C. The compressive strength of the M5 mixture was 18 MPa versus 10.87 MPa for the reference mixture. Additionally, optical microscope examination of specimens containing thermally treated steel slag revealed less damage than that observed in mixtures with dolomite.

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Activation technology of steel slag for concrete exposed to plateau climate: a state-of-the-art review

Deng,

Xiong,

Zhai

et al. 2024

Environ Sci Pollut Res

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Study on the fresh and hardened properties of concrete with steel slag as partial replacement for natural aggregates

Cited by 15 publications

References 20 publications

Performance of Eco-Friendly Cement Mortars Incorporating Ceramic Molds Shells and Paraffin Wax

Performance of Eco-Friendly Cement Mortars Incorporating Ceramic Molds Shells and Paraffin Wax

Experimental Study on the Physical and Mechanical Characteristics of Refractory Concrete Using Heat-Treated Steel Slag Coarse Aggregates

Activation technology of steel slag for concrete exposed to plateau climate: a state-of-the-art review

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