Iron speciation in blast furnace slag cements

• Published in: Cement and concrete research Vol. 140; p. 106287
• Main Authors: Mancini, A., Lothenbach, B., Geng, G., Grolimund, D., Sanchez, D.F., Fakra, S.C., Dähn, R., Wehrli, B., Wieland, E.
• Format: Journal Article
• Language: English
• Published: Elmsford Elsevier Ltd 01.02.2021; Elsevier BV
• Subjects: Blast furnace practice; Blast furnace slags; Corrosion; Hematite; Ilmenite; Iron; Iron sulfides; Laboratories; Magnetite; Oxidation; Pastes; Seawater; Slag; Slag cements; Speciation; Sulfides; Synchrotrons; Thermodynamic model; XAS; Slag; Iron; XAS; Corrosion; Thermodynamic model

Slag-containing pastes and concretes were analysed by element-specific synchrotron-based techniques to determine the speciation of iron on crushed materials through spatially resolved micro-spectroscopic studies. The investigated cement samples were hydrated either in the laboratory, or exposed to r...