Effect of sediment incorporation on the ...
Document type :
Article dans une revue scientifique: Article original
Title :
Effect of sediment incorporation on the reactivity of alkali-activated GGBFS systems
Author(s) :
Karam, Reine [Auteur]
Institut des Matériaux de Nantes Jean Rouxel [IMN]
Géomatériaux et Intéractions Environnementales [GERS-GIE]
Ecole nationale supérieure Mines-Télécom Lille Douai [IMT Nord Europe]
Laboratoire de Génie Civil et Géo-Environnement (LGCgE) - ULR 4515 [LGCgE]
Paris, Michael [Auteur]
Institut des Matériaux de Nantes Jean Rouxel [IMN]
Deneele, Dimitri [Auteur]
Institut des Matériaux de Nantes Jean Rouxel [IMN]
Géomatériaux et Intéractions Environnementales [GERS-GIE]
Wattez, Thomas [Auteur]
Ecocem
Cyr, Martin [Auteur]
Laboratoire Matériaux et Durabilité des constructions [LMDC]
Bulteel, D. [Auteur]
Ecole nationale supérieure Mines-Télécom Lille Douai [IMT Nord Europe]
Laboratoire de Génie Civil et Géo-Environnement (LGCgE) - ULR 4515 [LGCgE]
Institut des Matériaux de Nantes Jean Rouxel [IMN]
Géomatériaux et Intéractions Environnementales [GERS-GIE]
Ecole nationale supérieure Mines-Télécom Lille Douai [IMT Nord Europe]
Laboratoire de Génie Civil et Géo-Environnement (LGCgE) - ULR 4515 [LGCgE]
Paris, Michael [Auteur]
Institut des Matériaux de Nantes Jean Rouxel [IMN]
Deneele, Dimitri [Auteur]
Institut des Matériaux de Nantes Jean Rouxel [IMN]
Géomatériaux et Intéractions Environnementales [GERS-GIE]
Wattez, Thomas [Auteur]
Ecocem
Cyr, Martin [Auteur]
Laboratoire Matériaux et Durabilité des constructions [LMDC]
Bulteel, D. [Auteur]
Ecole nationale supérieure Mines-Télécom Lille Douai [IMT Nord Europe]
Laboratoire de Génie Civil et Géo-Environnement (LGCgE) - ULR 4515 [LGCgE]
Journal title :
Materials and structures
Pages :
118
Publisher :
Springer Verlag
Publication date :
2021-06
ISSN :
1359-5997
English keyword(s) :
Alkali-activated GGBFS
Sediment
TG
NMR
XRD
Sediment
TG
NMR
XRD
HAL domain(s) :
Sciences de l'ingénieur [physics]
English abstract : [en]
During the last few years, the valorization of marine sediment has been marked by the incorporation of this material in cementitious matrices. Some studies have depicted, more particularly, the use of the sediment in ...
Show more >During the last few years, the valorization of marine sediment has been marked by the incorporation of this material in cementitious matrices. Some studies have depicted, more particularly, the use of the sediment in alkaline activation of Ground Granulated Blast Furnace Slag (GGBFS) for Civil Engineering applications. The objective of this work is to understand the effect of clear sediment incorporation on the reactivity of GGBFS alkali-activation. Two alkaline activators are used, a sodium hydroxide solution (NaOH) and a mixture of sodium hydroxide and sodium silicate solution (NaOH + silicate). The influence of sediment incorporation on the reactivity of Alkali-Activated GGBFS (AAS) is determined through X-ray Diffraction XRD, thermogravimetry TG and Solid State Nuclear Magnetic Resonance (NMR) analyses. Results show that the presence of sediment does not modify the structure of the hydration products formed, neither the proportion of Aluminum atoms incorporated into hydrate chains. The substitution of slag by sediment causes a delay in the initiation of alkaline activation particularly in the short term, but this effect diminishes at 28 days.Show less >
Show more >During the last few years, the valorization of marine sediment has been marked by the incorporation of this material in cementitious matrices. Some studies have depicted, more particularly, the use of the sediment in alkaline activation of Ground Granulated Blast Furnace Slag (GGBFS) for Civil Engineering applications. The objective of this work is to understand the effect of clear sediment incorporation on the reactivity of GGBFS alkali-activation. Two alkaline activators are used, a sodium hydroxide solution (NaOH) and a mixture of sodium hydroxide and sodium silicate solution (NaOH + silicate). The influence of sediment incorporation on the reactivity of Alkali-Activated GGBFS (AAS) is determined through X-ray Diffraction XRD, thermogravimetry TG and Solid State Nuclear Magnetic Resonance (NMR) analyses. Results show that the presence of sediment does not modify the structure of the hydration products formed, neither the proportion of Aluminum atoms incorporated into hydrate chains. The substitution of slag by sediment causes a delay in the initiation of alkaline activation particularly in the short term, but this effect diminishes at 28 days.Show less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Internationale
Popular science :
Non
Source :