Microstructure of Portland cement paste subjected to different CO2 concentrations and further water curing

Understanding the effect of formed calcium carbonate and highly polymerization of silicates on the microstructure of cement paste exposed to early CO2 curing and further hydration process is crucial to comprehend the mechanisms of CO2 curing. In this paper, the cement pastes were further cured in water after CO2 curing under two CO2 concentrations (3% and 20%) and the carbonation depth, compressive strength, composition and morphology of the...