Titre :

A comparative analysis of ambient-cured metakaolin geopolymer mortar and flash-calcined soil geopolymer

Auteur(s) :

Alloul, Ali [Auteur]
Laboratoire de Génie Civil et Géo-Environnement (LGCgE) - ULR 4515 [LGCgE]
Ecole nationale supérieure Mines-Télécom Lille Douai [IMT Nord Europe]
Amar, Mouhamadou [Auteur]
Laboratoire de Génie Civil et Géo-Environnement (LGCgE) - ULR 4515 [LGCgE]
Centre for Materials and Processes [CERI MP - IMT Nord Europe]
Benzerzour, Mahfoud [Auteur]
Laboratoire de Génie Civil et Géo-Environnement (LGCgE) - ULR 4515 [LGCgE]
Centre for Materials and Processes [CERI MP - IMT Nord Europe]
Abriak, Nor-Edine [Auteur]
Laboratoire de Génie Civil et Géo-Environnement (LGCgE) - ULR 4515 [LGCgE]
Ecole nationale supérieure Mines-Télécom Lille Douai [IMT Nord Europe]

Titre de la revue :

Construction and Building Materials

Pagination :

134085

Éditeur :

Elsevier

Date de publication :

2023-12

ISSN :

0950-0618

Mot(s)-clé(s) en anglais :

Dredged sediments
Excavated clays
Flash calcination
Geopolymer mortar

Discipline(s) HAL :

Chimie/Matériaux
Sciences de l'ingénieur [physics]

Résumé en anglais : [en]

This paper focuses on the development of a geopolymer (GP) mortar that can be cured under ambient conditions using flash-calcined dredged sediment (FCS) and flash-calcined excavated clay (FCC), as a substitute for Metakaolin ...
Lire la suite >This paper focuses on the development of a geopolymer (GP) mortar that can be cured under ambient conditions using flash-calcined dredged sediment (FCS) and flash-calcined excavated clay (FCC), as a substitute for Metakaolin (MK). Granulated blast furnace slag (GBFS) is also added to some of the GP mixes to study its effect on GP performance. Potassium silicate (K2SiO2) was used as an alkaline reagent (AR). Therefore, this study investigates the effect of binder composition on the mechanical and durability performance of the GP mortar samples. Acid attack test, high-temperature resistance test, and microstructural analysis tests such as X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) were conducted to compare the reference mix with other substitute mixes containing FCS and FCC. Finally, the nuclear magnetic resonance (NMR) test is done on all GP mixes to verify their network classification. The results show that using FCS/FCC and only 10–20 % wt. of GBFS in the GP mortar mixes can result in similar or better properties in terms of strength and durability, while the NMR test identifies their tetrahedral network can vary between formulations.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Collections :

• Laboratoire Génie Civil et géo-Environnement (LGCgE) - ULR 4515

Source :

Harvested from HAL

Date de dépôt :

2025-02-26T08:55:00Z