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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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The purpose of this study is to examine whether cementitious powder separated from waste concrete can be used as an alternative raw material to limestone and reduce the usage of natural resource (limestone) and $CO_2$ emission based on recycling cementitious powder from waste concrete. Experiments actually analyzed the chemical composition of cementitious powder and performed hyperthermia analysis, measurement of free CaO and XRD analysis to measure the degree of recovery of hydration in the model of cementitious powder manufactured based on chemical composition. These were performed in each cementitious powder model at different calcination temperatures such as $900^{\circ}C$, $1200^{\circ}C$, $1300^{\circ}C$, $1400^{\circ}C$ and $1450^{\circ}C$. Through the experiments, it was found that the recovery of hydration was at a level which can be used as the alternative raw material for limestone, but the replacement ratio was directly affected by the degree of mixing of fine aggregate in less than $150{\mu}m$, which cannot be separated from cementitious powder. It was shown that there was no difference in the production of compounds involved in hydration at calcination temperatures of $1200^{\circ}C$ or higher. Therefore, to pursue the replacement of limestone and reduction of greenhouse gas by recycling cementitious powder, the development of technology to efficiently separate aggregate fine powder is required.
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참고문헌 (7)
참고문헌 신청
박차원 / 2005 / 폐콘크리트의 순환이용을 위한 폐미분말의 재활용 기술 / 한국건축시공학회지 5(3):109~116
한갑규 / 2008 / 건설 폐자재의 발생원인 분석 및 재활용 방안에 관한 연구 / KIEAE Journal 8(5):69~76
안재철 / 2005 / 實際 廢콘크리트 副産 微粉末을 利用한 再生시멘트의 水化特性 / 대한건축학회논문집 구조계 21(9):121~128
Choi TH / 2010 / The Study on the Fire Resistance of Mortar using of Discarded EPS Powder / 대한건축학회지회연합회 학술발표대회논문집 :399~403
Oh SG / 2002 / Study on Recovery of Hydration of Recycled Cement using Cementitious Powder of Waste Cement / Journal of Architectural Institute of Korea (structural system) 18(10):53~60
한갑규 / 2008 / 건설 폐자재의 발생원인 분석 및 재활용 방안에 관한 연구 / KIEAE Journal 8(5):69~76
안재철 / 2005 / 實際 廢콘크리트 副産 微粉末을 利用한 再生시멘트의 水化特性 / 대한건축학회논문집 구조계 21(9):121~128
Choi TH / 2010 / The Study on the Fire Resistance of Mortar using of Discarded EPS Powder / 대한건축학회지회연합회 학술발표대회논문집 :399~403
Oh SG / 2002 / Study on Recovery of Hydration of Recycled Cement using Cementitious Powder of Waste Cement / Journal of Architectural Institute of Korea (structural system) 18(10):53~60
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