Modification of Molten Steelmaking Slag for Cement Application
| Autor: | Antonio Malynowskyj, Bruno B. Ferraro, João O. G. Faria, Valdecir Angelo Quarcioni, André Alexandrino Lotto, Andre N. L. Silva, Fabiano Ferreira Chotoli, João Batista Ferreira Neto, Catia Fredericci, Tiago Ramos Ribeiro |
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| Rok vydání: | 2015 |
| Předmět: |
Materials science
business.industry Metallurgy Metals and Alloys Energy-dispersive X-ray spectroscopy Slag Melilite 02 engineering and technology Environmental Science (miscellaneous) engineering.material Steelmaking 020501 mining & metallurgy Åkermanite Larnite 0205 materials engineering Mechanics of Materials visual_art engineering visual_art.visual_art_medium Gehlenite Monticellite business |
| Zdroj: | Journal of Sustainable Metallurgy. 2:13-27 |
| ISSN: | 2199-3831 2199-3823 |
| DOI: | 10.1007/s40831-015-0031-7 |
| Popis: | The use of metallurgical slags in cement production depends on the phases present in such slags, which are affected by changes in slag composition as well as the cooling rates adopted during solidification. In this work, slags with distinct chemical compositions were melted and subjected to different cooling conditions. Slag samples were characterized by X-ray diffraction to identify and quantify mineralogical phases and by X-ray fluorescence to determine chemical composition. The microstructure of the samples was characterized by scanning electron microscopy coupled to energy dispersive spectroscopy for phase identification. The solidification of the slags was simulated using FactSage™ for solidification path evaluation, enabling a comparison of the phases determined by thermodynamic equilibrium with those analysed in slag samples. Slags with low basicity (CaO/SiO2 |
| Databáze: | OpenAIRE |
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