Research is currently being conducted in the field of carbon reduction–related construction technologies, focusing on using industrial waste as a replacement for cement or as aggregates. However, the existing research is limited as carbon reduction is only achieved by reducing the amount of cement used. With the imperative of carbon neutrality, the development of carbon reduction technology is also necessary in the construction field. To address this, we plan to develop carbon reduction technology by introducing biochar—a carbon-sequestration material—into construction practices. Therefore, this study aims to comprehend the effect of the carbonization degree of biochar on the hydration reaction of cement, emphasizing the development of carbon-sequestration construction technology. Therefore, physical and chemical properties, such as surface and crystal structures, were analyzed to determine the effect of varying carbonization degrees on cement composites, contributing valuable insights into the broader field of sustainable construction.

1. Introduction
2. Literature Review of Research on Biochar
3. Biochar Characteristics according toCarbonization Degree
    3.1 Experimental Overview
    3.2 Experimental Method
    3.3 Experimental Results
4. Conclusion
감사의 글
REFERENCES

• 김우석(금오공과대학교 건축학부 교수) | Kim, Woo-Suk (Professor, School of Architecture, Kumoh National Institute of Technology, Gumi, Korea)
• 이수정(금오공과대학교 건축공학과 공학석사) | Lee, Su-Jeong (M.S., Department of Architectural Engineering, Kumoh National Institute of Technology, Gumi, Korea)
• 이지윤(금오공과대학교 건축공학과 공학석사) | Lee, Ji-Yun (M.S., Department of Architectural Engineering, Kumoh National Institute of Technology, Gumi, Korea)
• 루지에프 잠시드(금오공과대학교 건축공학과 박사과정) | Ruziev, Jamshid (Ph.D. Student, Department of Architectural Engineering, Kumoh National Institute of Technology, Gumi, Korea)