Characterization of Steel Slag as Geo-material

Dubey, AA and Ravi, K and Devrani, R and Rathore, S and Borthakur, A (2020) Characterization of Steel Slag as Geo-material. In: Indian Geotechnical Conference (IGC), 2018, 13-15 December 2018, Bengaluru; India, pp. 113-122.

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Abstract

Steel slag is the granular by-product produced by steel manufacturing processes. In this study, the steel slag is evaluated using geotechnical and geo-environmental parameters to test its suitability for geotechnical applications. The electrical arc furnace (EAF) slag obtained from TATA Steel, Jamshedpur, is characterized by assessing its grain size distribution, relative density, specific gravity, short-term free swelling index, pH, and leaching characteristics. The slag is classified as silty sand (SM) as per USCS. The slag is reported as heavy material due to its high specific gravity. An appreciable amount of calcium concentration and highly alkaline nature of the steel slag submerged water were observed in this study. A small free swell index of steel slag was also observed in the investigation. This study reports high alkalinity, heaviness, and calcium leachability of steel slag as some of the hindrances for its utilization as geo-material. © 2020, Springer Nature Singapore Pte Ltd.

Item Type:	Conference Paper
Publication:	Lecture Notes in Civil Engineering
Publisher:	Springer Science and Business Media Deutschland GmbH
Additional Information:	cited By 0; Conference of Indian Geotechnical Conference ,IGC 2018 ; Conference Date: 13 December 2018 Through 15 December 2018; Conference Code:250609
Keywords:	Alkalinity; Density (specific gravity); Electric furnaces; Grain size and shape, Calcium concentration; Electrical arc furnaces; Free swell index; Geo-environmental parameters; Geotechnical application; Grain size distribution; Leaching characteristics; Steel manufacturing process, Slags
Department/Centre:	Division of Mechanical Sciences > Civil Engineering
Date Deposited:	15 Mar 2021 06:37
Last Modified:	15 Mar 2021 06:37
URI:	http://eprints.iisc.ac.in/id/eprint/67234

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