| Title |
Cement Mortar Properties Based on CO2 Curing Period |
| Authors |
하상주(Ha, Sang-Ju) ; 나형원(Na, Hyeong-Won) ; 형원길(Hyung, Won-Gil) |
| DOI |
https://doi.org/10.5659/JAIK.2025.41.5.275 |
| Keywords |
Carbonation Curing; CaCO3; Cement Mortar |
| Abstract |
This study examines the impact of carbon dioxide curing duration on the physical and chemical properties of cement mortar. The experiment
assessed carbonation depth, absorption rate, flexural strength, and compressive strength under air curing and carbon dioxide curing (C3, C6)
conditions. Carbon dioxide curing increased carbonation depth, reduced absorption, and enhanced flexural and compressive strength compared
to air curing. The highest density and strength were observed with C6 curing, attributed to microstructural densification through calcium
carbonate formation. XRD and SEM analyses confirmed the conversion of calcium hydroxide into calcium carbonate, with hydration products
evenly distributed and internal voids significantly reduced. These findings highlight carbon dioxide curing as a promising method for
improving mortar performance while supporting carbon neutrality and sustainable construction. |