Chemical, Mineralogical, and Morphological Properties of Steel Slag

Steel slag is a byproduct of the steelmaking and steel refining processes. This paper provides an overview of the different types of steel slag that are generated from basic-oxygen-furnace (BOF) steelmaking, electric-arc-furnace (EAF) steelmaking, and ladle-furnace steel refining processes. The mine...

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Main Authors: Irem Zeynep Yildirim, Monica Prezzi
Format: Article
Language:English
Published: Wiley 2011-01-01
Series:Advances in Civil Engineering
Online Access:http://dx.doi.org/10.1155/2011/463638
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author Irem Zeynep Yildirim
Monica Prezzi
author_facet Irem Zeynep Yildirim
Monica Prezzi
author_sort Irem Zeynep Yildirim
collection DOAJ
description Steel slag is a byproduct of the steelmaking and steel refining processes. This paper provides an overview of the different types of steel slag that are generated from basic-oxygen-furnace (BOF) steelmaking, electric-arc-furnace (EAF) steelmaking, and ladle-furnace steel refining processes. The mineralogical and morphological properties of BOF and electric-arc-furnace-ladle [EAF(L)] slag samples generated from two steel plants in Indiana were determined through X-Ray Diffraction (XRD) analyses and Scanning Electron Microscopy (SEM) studies. The XRD patterns of both BOF and EAF(L) slag samples were very complex, with several overlapping peaks resulting from the many minerals present in these samples. The XRD analyses indicated the presence of free MgO and CaO in both the BOF and EAF(L) slag samples. SEM micrographs showed that the majority of the sand-size steel slag particles had subangular to angular shapes. Very rough surface textures with distinct crystal structures were observed on the sand-size particles of BOF and EAF(L) slag samples under SEM. The characteristics of the steel slag samples considered in this study are discussed in the context of a detailed review of steel slag properties.
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series Advances in Civil Engineering
spelling doaj-art-195c906f81684dd2b27ecce3b94a68962025-02-03T01:25:54ZengWileyAdvances in Civil Engineering1687-80861687-80942011-01-01201110.1155/2011/463638463638Chemical, Mineralogical, and Morphological Properties of Steel SlagIrem Zeynep Yildirim0Monica Prezzi1Fugro Consultants, Inc., 6100 Hillcroft Avenue (77081), Houston, TX, 77274, USASchool of Civil Engineering, Purdue University, 550 Stadium Mall Drive, West Lafayette, IN, 47907, USASteel slag is a byproduct of the steelmaking and steel refining processes. This paper provides an overview of the different types of steel slag that are generated from basic-oxygen-furnace (BOF) steelmaking, electric-arc-furnace (EAF) steelmaking, and ladle-furnace steel refining processes. The mineralogical and morphological properties of BOF and electric-arc-furnace-ladle [EAF(L)] slag samples generated from two steel plants in Indiana were determined through X-Ray Diffraction (XRD) analyses and Scanning Electron Microscopy (SEM) studies. The XRD patterns of both BOF and EAF(L) slag samples were very complex, with several overlapping peaks resulting from the many minerals present in these samples. The XRD analyses indicated the presence of free MgO and CaO in both the BOF and EAF(L) slag samples. SEM micrographs showed that the majority of the sand-size steel slag particles had subangular to angular shapes. Very rough surface textures with distinct crystal structures were observed on the sand-size particles of BOF and EAF(L) slag samples under SEM. The characteristics of the steel slag samples considered in this study are discussed in the context of a detailed review of steel slag properties.http://dx.doi.org/10.1155/2011/463638
spellingShingle Irem Zeynep Yildirim
Monica Prezzi
Chemical, Mineralogical, and Morphological Properties of Steel Slag
Advances in Civil Engineering
title Chemical, Mineralogical, and Morphological Properties of Steel Slag
title_full Chemical, Mineralogical, and Morphological Properties of Steel Slag
title_fullStr Chemical, Mineralogical, and Morphological Properties of Steel Slag
title_full_unstemmed Chemical, Mineralogical, and Morphological Properties of Steel Slag
title_short Chemical, Mineralogical, and Morphological Properties of Steel Slag
title_sort chemical mineralogical and morphological properties of steel slag
url http://dx.doi.org/10.1155/2011/463638
work_keys_str_mv AT iremzeynepyildirim chemicalmineralogicalandmorphologicalpropertiesofsteelslag
AT monicaprezzi chemicalmineralogicalandmorphologicalpropertiesofsteelslag