Sample
Name
Portlandite 96% Sigma-Aldrich 10C 2b CO2 60min
Substrate material
KBr window, 3mm thickness, 12mm diameter
Comments
dispersion of agglomerate grains on the substrate
Temperature
10.0 ± 0.1 C
Time at T
84.0 ± 1.0 min
Temperature max
10.0 ± 0.1 C
Time at Tmax
84.0 min
Type
molecular gas
Fluids
Fluid temperature
10.0 ± 0.1 C
Fluid pressure
2.0 ± 0.1 bar
Time at T, P, pH
60.0 ± 1.0 min
Title
Carbonation process of portlandite with 2 bar of CO2 gas at 10°C during 60 min

Precursors

Materials

Produced sample

Materials
Processing steps
Step Chronology Date Type Process Changes
#1 on parent sample 2011-05-24 chemical 2 bar of CO2 gas in contact with sample during 60 min at 10°C carbonation process, decrease of mass fraction of Portlandite, increase of mass fraction of Calcite and Aragonite. Reaction: CO2 + Ca(OH)2 => CaCO3 + H2O