The purpose of this study is to examine whether cementitious powder separated from waste concrete can be used as the alternative raw material for limestone and reducing the usage of natural resource (limestone) and CO2emission based on recycling cementitious powder from waste concrete.
Therefore, to reduce waste and CO2 emission in the cement industry and develop recycled cement, mix design was deducted by multi-objective optimization.

• 박동천(한국해양대학교, 해양공간건축학과 부교수, 공학박사) | Park, Dong Cheon
• 권은희(한국해양대학교, 해양공간건축학과, 박사과정) | Kwon, Eun Hee