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계란껍질 분말을 혼입한 시멘트 페이스트의 수화 특성에 관한 실험적 연구
진옥곤 ( Chen Yukun ),순양 ( Sun Yang ),이한승 ( Lee Han-seung ) 한국건축시공학회 2021 한국건축시공학회 학술발표대회 논문집 Vol.21 No.1
The eggshell is a type of bio-waste which is considered hazardous to the environment. In this research, the waste eggshell is utilized as a potential filler in cementitious material. This study has measured by zeta potential to analyze the interaction between the surface of the filler and the calcium ion in the solution. Meanwhile, the effect of eggshell powder on cement hydration process has been determined by isothermal calorimeter. The results show that the surface of eggshell powder have a strong adsorption of Ca2+, and addition of the eggshell powder provides a heterogeneous nucleation site for cement, which promotes the growth of hydration products.
계란껍질 분말을 혼입한 시멘트 페이스트의 역학 특석 및 CO<sub>2</sub> 배출량 연구
진옥곤 ( Chen¸ Yukun ),이한승 ( Lee¸ Hanseung ) 한국건축시공학회 2021 한국건축시공학회 학술발표대회 논문집 Vol.21 No.2
This study investigated the use of different amounts of eggshell powder (ESP), namely 5%, 10%, and 15% by weight, as a substitute for Ordinary Portland Cement. The results show that its flowability and 28-day compressive strength. Meanwhile the carbon dioxide emission was though sustainable assessment analyzed It was concluded that ESP replacement level of around 5% provides the best performance to reduces environmental pollution.
고로 슬래그 및 POFA 함유 눅색 삼원 시멘트 페이스트의 역학적 특성 연구
진옥곤 ( Chen Yukun ),이한승 ( Lee Hanseung ) 한국건축시공학회 2022 한국건축시공학회 학술발표대회 논문집 Vol.22 No.1
This study investigated the use of different amounts of BFS and POFA. In all mixture systems, 60% cement was replaced with POFA and BFS as a substitute for Ordinary Portland Cement. The results show that with the addition of POFA and BFS, although the early compressive strength will be reduced, the strength will be significantly improved at 28 days. In the ternary system, the 28-day strength is negatively correlated with increasing POFA content.