Glass structure of industrial ground granulated blast furnace slags (GGBS) investigated by time-resolved Raman and NMR spectroscopies

Ground granulated blast furnace slags (GGBS) are glassy by-products from iron production that are commonly used as supplementary cementitious materials in blended cements. The glass structure of seven industrial GGBS was investigated by Raman and nuclear magnetic resonance spectroscopies. The comple...

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Bibliographic Details
Published in:Journal of materials science 2021-11, Vol.56 (31), p.17490-17504
Main Authors: Blotevogel, Simon, Montouillout, Valérie, Canizares, Aurélien, Simon, Patrick, Chesneau, Erwan, Danezan, Abel, Wattez, Thomas, Ehrenberg, Andreas, Poirier, Mathilde, Patapy, Cédric, Cyr, Martin
Format: Article
Language:English
Subjects:
Analytical chemistry
Cement
Cements
Ceramics
Characterization and Evaluation of Materials
Chemical Sciences
Chemistry and Materials Science
Classical Mechanics
Composition
Crystallography and Scattering Methods
Earth Sciences
Environmental Sciences
Geochemistry
GGBS
Granulation
Inorganic chemistry
Investigations
Luminescence
Material chemistry
Materials Science
NMR
Nuclear magnetic resonance
Nuclear magnetic resonance spectroscopy
Polymer Sciences
Polymerization
Sciences of the Universe
Slag
Solid Mechanics
Spectra
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Summary:Ground granulated blast furnace slags (GGBS) are glassy by-products from iron production that are commonly used as supplementary cementitious materials in blended cements. The glass structure of seven industrial GGBS was investigated by Raman and nuclear magnetic resonance spectroscopies. The complex composition of the slags induced multiple analytical challenges. Under usual continuous excitation, the Raman signal was masked by strong luminescence, so that analysis was carried out on a time-resolved Raman (TRR) device. TRR allowed to eliminate luminescence and resulted in exploitable spectra that showed variations in line with theoretical NBO/T values. The analysis of 27 Al and 29 Si NMR spectra was complicated by the presence of paramagnetic nuclei and the wide variety of environments. Nevertheless, 27 Al NMR showed that Al was present as a network former, mainly in fourfold coordination and careful analyses of 29 Si NMR spectra allowed the comparison of glass network polymerization of industrial GGBS in line with the theoretical NBO/T based on their composition.
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-021-06446-4