When manufacturing secondary concrete products, steam and autoclave curing are practiced for the purpose of securing product performance at early phase. CO2 is generated by combustion of fossil fuel at the time of curing. This study is part of a research conducted to minimize curing process which generates CO2. Combination materials types, substitution ratio, strength property per different types of curing are compared and evaluated. Result of the experiment indicates that combination material with 40%　blast furnace slag　substitution and W/B which has gone through 30,40% steam curing are the most outstanding experiment bodies.

• 김하석(한국건설기술연구원 공공건축연구본부 미래건축연구실, 박사후연구원) | Kim, Ha Seog Corresponding Author
• 백대현(한국건설기술연구원 공공건축연구본부 미래건축연구실, 박사후연구원) | Baek, Dae Hyun
• 이세현(한국건설기술연구원 공공건축연구본부 미래건축연구실, 선임연구위원) | Lee, Sea Hyun