As global warming is higher by CO2, most of countries have an effort to develop CO2 reducing technology like a CO2 sequestration and a CO2 curing method using cement based materials. In this study, CO2 uptake rate and compressive strength were investigated when CO2 curing method was applied in cement mortar. The CO2 uptake rate was ranged from 10.1% to 11.6% by mass measurement method and from 6.2% to 16.3% by TGA method. This means that mass measurement method by electronic scale is more accurate than TGA method to estimate CO2 uptake rate. The early compressive strength of 1 hour CO2 curing specimens was higher than that of 1 hour atmospheric curing specimens, but lower than that of 5 hours steam curing specimens. 3 days and 7 days compressive strength of specimens by atmospheric curing and steam curing were increased both. But compressive strength of 1 hour CO2 curing specimens was lower than that of other two curing methods.

Abstract
 I. 서 론
 II. 실험계획 및 방법
  1. 실험계획
  2. 사용재료
  3. 실험방법
 III. 결과 및 고찰
  1. CO2 흡수율
  2. 양생방법에 따른 강도특성
 IV. 결 론
 감사의 글
 References

• 이종찬(최용석 건축환경연구소) | Jong-Chan Lee Corresponding author