The role of CuO on the microstructure and phase composition of SO3‐activated clinker

The role of CuO on the microstructure and phase composition of SO3‐activated clinker

The mineralising effect of CuO on microstructure and phase composition of SO3‐doped clinker was studied by a combination of phase analysis, light and scanning electron microscopy and QXRD. Results show proportionally higher C4AF content in clinker interstitial matter due to CuO doping. CuO also lowe...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Journal of microscopy (Oxford) 2022-05, Vol.286 (2), p.92-97
Hauptverfasser: Boháč, Martin, Khongová, Ingrid, Zezulová, Anežka, Kotlánová Krejčí, Michaela, Kubátová, Dana, Staněk, Theodor
Format: Artikel
Sprache:eng
Schlagworte:
Clinker
Copper oxides
Crystal structure
Crystals
CuO
Dicalcium silicate
Ferric oxide
Inclusions
low‐energy clinker
Microstructure
mineraliser
Phase composition
Scanning electron microscopy
SO3 activation
Sulfur trioxide
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The mineralising effect of CuO on microstructure and phase composition of SO3‐doped clinker was studied by a combination of phase analysis, light and scanning electron microscopy and QXRD. Results show proportionally higher C4AF content in clinker interstitial matter due to CuO doping. CuO also lowers the SO3 incorporation in main clinker phases C3S and C2S. Observation in back‐scattered electrons revealed that Cu crystallises mainly as a Cu‐rich phase in the clinker interstitial matter and inclusions in crystals of C2S with distorted structure. CuO partially inhibits the incorporation of Fe2O3 in C2S.
ISSN:0022-2720
1365-2818
DOI:10.1111/jmi.13069