Steelmaking slags as raw material for sulphoaluminate belite cement - BRGM - Bureau de recherches géologiques et minières Access content directly
Journal Articles Advances in Cement Research Year : 2007

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.

Domains

Earth Sciences

Dates and versions

hal-03644430 , version 1 (19-04-2022)

Identifiers

Cite

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

Collections

BRGM BRGM-DO
21 View
0 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More