Arrêt de service programmé du vendredi 10 juin 16h jusqu’au lundi 13 juin 9h. Pour en savoir plus
Accéder directement au contenu Accéder directement à la navigation
Article dans une revue

Steelmaking slags as raw material for sulphoaluminate belite cement

Abstract : In the present study, slags from the steelmaking industry are described and considered as a potential raw material within the field of sulphoaluminate belite cement. The objective of the study was to investigate the possibility of using a substantial amount of steelmaking slags as raw meal in the manufacture of a sulphobelitic clinker. A further aim was to compare the influence of different slags in relation to the formation of sulphoaluminate and the other clinker phases required. The behaviour of high temperature reactions was investigated by using thermogravimetric analysis coupled with a quadrupole mass spectrometer. Mineralogical observations were carried out through X-ray powder diffraction, and scanning electron microscopy. Three different mixtures and a single ladle slag were prepared using modified Bogue calculations, which are characterised by the assessment of a potential phase composition in order to produce belite-rich cement activated with sulphoaluminate. The results so far prove that steelmaking slags have the potential to be used as raw material, since sulphoaluminate along with polymorphs of dicalcium silicate and ferrite phases were detected after firing at 1200°C in an air atmosphere.
Type de document :
Article dans une revue
Liste complète des métadonnées

https://hal-brgm.archives-ouvertes.fr/hal-03644430
Contributeur : Frédérique Couffignal Connectez-vous pour contacter le contributeur
Soumis le : mardi 19 avril 2022 - 10:52:33
Dernière modification le : mercredi 20 avril 2022 - 03:42:21

Lien texte intégral

Identifiants

Collections

Citation

D. Adolfsson, Nour-Eddine Menad, E. Viggh, B. Björkman. Steelmaking slags as raw material for sulphoaluminate belite cement. Advances in Cement Research, Thomas Telford, 2007, 19 (4), pp.147-156. ⟨10.1680/adcr.2007.19.4.147⟩. ⟨hal-03644430⟩

Partager

Métriques

Consultations de la notice

6