VALORISATION OF STAINLESS STEEL SLAGS AS A HYDRAULIC BINDER
| Autor: | Lubica Kriskova, Yiannis Pontikes, Fei Zhang, Özlem Cizer, Peter Tom Jones, Koen van Balen, Bart Blanpain |
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| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Acta Metallurgica Slovaca, Vol 19, Iss 3 (2013) |
| Druh dokumentu: | article |
| ISSN: | 1335-1532 1338-1156 |
| DOI: | 10.12776/ams.v19i3.159 |
| Popis: | This work is focused on exploring various cold and hot stage treatment paths of stainless steel slag as a tool to improve its hydraulic properties. At a cold stage, mechanical and chemical activation was applied on industrial stainless steel slag; and it was found that both activation methods effectively improve the reactivity of the studied slag. In addition, the detailed investigation of hydration on two major phases, γ – C2S and merwinite, revealed that their hydration resulted in the formation of C – S – H gel, typically formed during the hydration of OPC. Regarding the hot stage treatment, the combination of the chemistry modification with the addition of fly ash at 30 wt. % and fast cooling by means of water quenching resulted in a complete amorphisation of the material. Ultimately, the produced material possessing similar properties to granulated blast furnace slag could be used as a latent hydraulic material in blended cements. |
| Databáze: | Directory of Open Access Journals |
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