Title :

Determination of the Reactivity Degree of Various Alkaline Solutions: A Chemometric Investigation

Author(s) :

Arnoult, Marie [Auteur]
Institut de Recherche sur les CERamiques [IRCER]
Dupuy, Colin [Auteur]
Institut de Recherche sur les CERamiques [IRCER]
Agence Nationale pour la Gestion des Déchets Radioactifs [ANDRA]
Colas, Maggy [Auteur]
Institut de Recherche sur les CERamiques [IRCER]
Cornette, Julie [Auteur]
Institut de Recherche sur les CERamiques [IRCER]
Duponchel, Ludovic [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516
Rossignol, Sylvie [Auteur]
Institut de Recherche sur les CERamiques [IRCER]

Journal title :

Applied Spectroscopy

Volume number :

73

Pages :

1361-1369

Publication date :

2019

HAL domain(s) :

Chimie/Chimie théorique et/ou physique

English abstract : [en]

Knowledge of alkaline silicate solutions is crucial in order to optimize geopolymer properties. Geopolymers are new binders resulting from the activation of an aluminosilicate by an alkaline solution. It is well established ...
Show more >Knowledge of alkaline silicate solutions is crucial in order to optimize geopolymer properties. Geopolymers are new binders resulting from the activation of an aluminosilicate by an alkaline solution. It is well established that the solution reactivity strongly affects the geopolymerization and therefore the geopolymer working properties. As a consequence, an evaluation of the reactivity degree of alkaline silicate solutions prior synthesis is of the utmost interest. However, the determination of the solution reactivity is currently tedious, and for geopolymer commercialization, it would be necessary to find an easy way to determine it. Therefore, Raman spectroscopy, combined with chemometric techniques, is proposed as a solution to easily determine the alkaline silicate solution reactivity. To conduct this investigation, 65 silicate solutions were characterized by Raman spectroscopy, and reference values of their reactivity degree were determined. Finally, principal component analysis and partial least squares regression were performed to build a statistical model able to predict the alkaline silicate solution reactivity from Raman spectra.Show less >

Audience :

Non spécifiée

Popular science :

Non

Administrative institution(s) :

ENSCL
CNRS
Université de Lille

Collections :

• Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516

Research team(s) :

Propriétés magnéto structurales des matériaux (PMSM)

Submission date :

2024-02-21T17:11:59Z
2024-02-23T13:37:29Z