Monitoring gypsum plaster setting in a foam through Raman spectroscopy - Archive ouverte HAL Access content directly
Journal Articles Physical Review Applied Year : 2022

Monitoring gypsum plaster setting in a foam through Raman spectroscopy

Abstract

We use Raman spectroscopy to probe in situ the hydration reaction of a foamed mineral binder, here gypsum plaster. We show the strong effect of the mixing process used for foaming on the hydration kinetics. On the contrary, we observe no effect of the cationic surfactant tetradecyltrimethylammonium bromide (TTAB) used as foaming agent, and of the foam structure. By tuning the hydration timescale with a setting retardant (citric acid) and measuring in parallel the characteristic bubble radius in the foam, we show that hydration kinetics control the arrest of the bubble size evolution in the fresh foam and the final pore size in the set gypsum.
Fichier principal
Vignette du fichier
PlasterFoam_postprint.pdf (1.34 Mo) Télécharger le fichier
Origin Files produced by the author(s)

Dates and versions

hal-03791670 , version 1 (29-09-2022)

Identifiers

Cite

Joachim Trosseille, G. Panczer, C. Martinet, Marie Le Merrer. Monitoring gypsum plaster setting in a foam through Raman spectroscopy. Physical Review Applied, 2022, 18 (3), pp.034078. ⟨10.1103/PhysRevApplied.18.034078⟩. ⟨hal-03791670⟩
60 View
53 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More