Calcium silicate hydratesX-ray absorption spectroscopySorptionWet chemistry and spectroscopic investigations were conducted to study Fe(III) uptake by calcium silicate hydrate (C–S–H) at different Ca/Si ratios. Wet chemistry experiments were carried out by using a Fe radiotracer while Si NMR and ...
Fe(III) uptake by calcium silicate hydratesdoi:10.1016/J.APGEOCHEM.2019.104460Andrea ManciniErich WielandGuoqing GengRainer DhnJrgen SkibstedBernhard WehrliBarbara LothenbachElsevier BV
Hydration of ferrite-rich Portland cement: Evaluation of Fe-hydrates and Fe uptake in calcium-silicate-hydratesFerrite-rich cement (FC)HydrationFe phasesCalcium-silicate-hydrate (C-S-H)Thermodynamic modellingThe hydration process in ferrite-rich cement (FC) and its pore structure have been ...
Single phases calcium silicate hydrates (1.1 nm tobermorite; Ca 5Si 6O 16(OH) 2路4H 2O), with Fe 3+ and Mg 2+ substitutions, were synthesized under hydrothermal conditions at 175 掳C. The structure of different tobermorite samples was investigated using X-ray diffraction (XRD), scanning ...
X-ray diffraction (XRD) of the co-precipitation samples showed uptake of a small portion of Fe(II) by calcium-silicate-hydrates (C-S-H) in the interlayer indicated by an increase in the interlayer spacing. Fe(II) incorporation by AFm phases was not indicated. Wet chemical experiments using...