Titre :

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

Auteur(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]

Titre de la revue :

Applied Spectroscopy

Numéro :

73

Pagination :

1361-1369

Date de publication :

2019

Discipline(s) HAL :

Chimie/Chimie théorique et/ou physique

Résumé en anglais : [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 ...
Lire la suite >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.Lire moins >

Audience :

Non spécifiée

Vulgarisation :

Non

Établissement(s) :

ENSCL
CNRS
Université de Lille

Collections :

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

Équipe(s) de recherche :

Propriétés magnéto structurales des matériaux (PMSM)

Date de dépôt :

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