article · Innovative Infrastructure Solutions
Steel slag is an abundant industrial byproduct with potential environmental benefits for construction. This study evaluated the feasibility of substituting conventional coarse aggregate in concrete mixtures with varying proportions of steel slag. Laboratory investigations measured concrete performance across workability, compressive strength, flexural strength, and other parameters. The results indicate that steel slag functions effectively as an alternative aggregate. In particular, a mixture containing thirty per cent steel slag replacement achieved favourable workability alongside significant improvements in both compressive and flexural strengths. Incorporating steel slag at this proportion enhances mechanical performance while supporting resource efficiency and reducing environmental impacts in concrete production. These outcomes offer practical guidance on the performance and behaviour of slag-substituted concrete mixtures for construction professionals and researchers seeking more sustainable building materials.
Concrete production consumes vast quantities of natural stone aggregates and creates significant environmental pressure. Reusing steel slag, an abundant industrial byproduct, diverts industrial waste from disposal while reducing the demand for quarried rock. Demonstrating that steel slag can increase concrete strength without compromising workability supports the development of more sustainable and resource-efficient infrastructure materials.
This work demonstrates applied and tested mix formulations of interest to ready-mix concrete suppliers, precast manufacturers, and civil engineering contractors. It provides specific guidance showing that thirty per cent slag substitution improves strength. As the findings stem from experimental testing, the technology sits at an applied research stage where field trials, supply chain integration, and regional standardisation are likely required before widespread commercial adoption.
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Abstract The utilization of steel slag for industrial and construction purposes has gained significant attention in recent years due to its abundant availability and potential environmental benefits. This study explores the feasibility of utilizing steel slag as a coarse aggregate in concrete, aiming to determine the optimal replacement percentages for desired mechanical and structural properties. Experimental investigations were conducted, substituting steel slag for conventional coarse aggregate in varying proportions. The concrete mixtures were tested for compressive strength, flexural strength, workability, and other parameters. The results demonstrate the promising potential of incorporating steel slag as a partial replacement for coarse aggregate. The mixture with 30% steel slag replacement exhibited favorable strength properties and workability. Both compressive and flexural strengths showed significant improvement, highlighting the viability of steel slag as an alternative to conventional coarse aggregate. The findings provide valuable guidance for engineers, researchers, and decision-makers in the construction industry regarding the practical benefits and considerations of using steel slag in concrete mixtures. This utilization promotes resource efficiency, reduces environmental impact, and maintains or enhances the mechanical and workability properties of concrete.
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DOI: 10.1007/s41062-024-01464-y
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