DESIGN AND DEVELOPMENT OF ADDITIVE FOR CO 2 FIXATION UTILIZING BY-PRODUCT CONTAINING Ca （5） ─FUNDAMENTAL STUDY ON THE COMPOSITION DESIGN OF ADDITIVE FOR CO 2 FIXTATION CONTAINING Al 2 O 3 AND Fe 2 O 3 ─

Key Points

• The study aims to design a CO2 fixation additive from by-products containing calcium to improve material properties.
• Examined the effects of adding Al2O3 and Fe2O3 on the composition of a CO2 fixation material.
• Conducted basic experiments using reagent materials to assess properties and processing temperatures.
• Designed a mixture that generates C4AF to evaluate its potential for lower firing temperatures.
• It was suggested that the designed mixture can produce a CO2 fixation material at lower firing temperatures than traditional methods.
• The incorporation of C4AF may enhance the carbonation reactivity by minimizing the particle size of γ-C2S.
• The study indicated that this composition could help maintain CO2 fixation potential despite lower γ-C2S content.