A Study on the Effect of Initial Strength of Cement Paste Containing Fly Ash or Blast Furnace Slag on CO₂ Curing Period

플라이 애쉬 및 고로슬래그 혼입 시멘트 페이스트의 CO₂ 양생 기간에 따른 초기강도의 영향에 대한 연구

As the concentration of greenhouse gases in the atmosphere increases, the reduction of CO2 is gaining worldwide attention. In the construction industry, cement replacement materials such as fly ash and blast furnace slag were investigated to reduce CO2 emissions in cement production process. Precast concrete is used in the field after manufacturing in the factory in the form of pipes and bricks because of shortening construction period and cutting construction cost. According to the results of previous research, it is known that early CO2 curing in concrete using OPC or fly ash has an initial strength enhancement effect and can be used for precast concrete production. Therefore, the purpose of this study is to evaluate the strength improvement effect by confirming the initial strength improvement effect when blast furnace slag is mixed.