Dependence of Carbonation Curing Temperature on Carbonation Reaction of Hardened Cement Paste Mixed With Co 2 Fixing Admixture

Key Points

• The research aims to investigate the effects of curing temperature on the carbonation reaction of cement paste mixed with a CO2 fixing admixture.
• Used CO2 fixing admixture containing γ-phase 2CaO·SiO2
• Tested carbonation under different temperature conditions
• Measured carbonation rate and calcium carbonate polymorph production
• Carbonation rate increased slightly with temperature, but the difference was limited.
• No significant temperature dependence observed for carbonation rate.
• The amount of thermodynamically stable calcium carbonate increased with temperature.

Abstract