Microstructure Analysis and Material Properties of Weld Slag as Fine Aggregate in Concrete

Year : 2025 | Volume : 15 | Issue : 02 | Page : 13 18
    By

    Ananthi A.,

Abstract

To reduce the amount of river sand used, researchers and engineers have developed their own solutions. The well-known technique of submerged-arc welding can create high-quality welds in a variety of thicknesses for ferrous, stainless, and even some non-ferrous metals. The procedure involves an electric current flowing constantly between a welding wire and the work piece, creating an arc. In submerged arc welding, the shielding flux is transformed into slag during the welding process, which is waste that needs to be disposed of. The microstructural and tensile characteristics of two varieties of Submerged Arc Welding Slag (SAWS), SAWS 1 and SAWS 2, which were utilized in concrete as a partial substitute for fine aggregate, are presented in this study. X-ray powder diffraction (XRD) analysis was used to identify the elemental chemical composition of the SAWS 1 and SAWS 2 crystalline phases, while scanning electron microscopy (SEM) was used to analyze their microstructure. Energy dispersive X-ray analysis (EDS) identified the qualitative and quantitative elemental analysis. It was discovered that SAWS 1’s compressive strength was significantly greater than SAWS 2’s after 7 and 28 days.

Keywords: Weld slag, concrete, microstructure, compressive strength, Submerged Arc Welding Slag (SAWS), fine aggregate replacement, sustainable construction materials, X-ray Diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), mechanical properties, waste utilization, cementitious composites

[This article belongs to Recent Trends in Civil Engineering & Technology ]

How to cite this article:
Ananthi A.. Microstructure Analysis and Material Properties of Weld Slag as Fine Aggregate in Concrete. Recent Trends in Civil Engineering & Technology. 2025; 15(02):13-18.
How to cite this URL:
Ananthi A.. Microstructure Analysis and Material Properties of Weld Slag as Fine Aggregate in Concrete. Recent Trends in Civil Engineering & Technology. 2025; 15(02):13-18. Available from: https://journals.stmjournals.com/rtcet/article=2025/view=232903


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Regular Issue Subscription Original Research
Volume 15
Issue 02
Received 13/03/2025
Accepted 24/04/2025
Published 30/04/2025
Publication Time 48 Days


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