지원사업
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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This paper presents a method of estimating the setting time of cement mortar incorporating recycled aggregate powder (RP) and cement kiln dust (CKD) at various curing temperatures by applying an equivalent age method. To estimate setting time, the equivalent age using apparent activation energy (Ea) was applied. Increasing RP and CKD leads to a shortened initial and final set. Ea at the initial set and final set obtained by Arrhenius function showed differences in response to mixture type. These were estimated to be from 10~19 KJ/mol in all mixtures, which is smaller than those of conventional mixture ranging from 30~50 KJ/mol. Based on the application of Ea to Freisleben Hansen and Pederson's equivalent age function, equivalent age is nearly constant, regardless of curing temperature and RP contents. This implies that the concept of maturity is applicable in estimating the setting time of concrete containing RP and CKD. A high correlation was observed between estimated setting time and measured setting time. A multiregression model was provided to determine setting time reflecting RP and CKD. Thus, the setting time estimation method studied herein can be applicable to concrete incorporating RP and CKD in the construction field.
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참고문헌 (12)
참고문헌 신청
Kim JM / 2011 / Application of waste concrete powder as silica powder of cement extruding panel / Journal of the Korean Recycled Construction Resources Institute 6(1):88~94
현철 / 2007 / 폐콘크리트미분말 및 건설잔토로 제조된 인공경량골재의 개발 및 이를 사용한 콘크리트의 기초물성에 관한 연구 / 대한건축학회논문집 구조계 23(7):69~77
Choi MS / 2006 / Status of disposal of construction waste and recycling. Symposium of construction waste disposal and production / In Proceeding of Technical Workshop on Manufacturing and Application of Construction Waste and Recycled Aggregates 2006 :1~30
Kang SP / 2011 / A study on the properties of mortar using wet type waste sludge according to heating temperature / Journal of the Korean Recycled Construction Resources Institute 6(1):111~119
Han MC / 2010 / Effect of maximum size and contents method of recycled aggregate powder on engineering properties of the cement mortar / Journal of the Korean Recycled Construction Resources Institute 5(4):129~136
현철 / 2007 / 폐콘크리트미분말 및 건설잔토로 제조된 인공경량골재의 개발 및 이를 사용한 콘크리트의 기초물성에 관한 연구 / 대한건축학회논문집 구조계 23(7):69~77
Choi MS / 2006 / Status of disposal of construction waste and recycling. Symposium of construction waste disposal and production / In Proceeding of Technical Workshop on Manufacturing and Application of Construction Waste and Recycled Aggregates 2006 :1~30
Kang SP / 2011 / A study on the properties of mortar using wet type waste sludge according to heating temperature / Journal of the Korean Recycled Construction Resources Institute 6(1):111~119
Han MC / 2010 / Effect of maximum size and contents method of recycled aggregate powder on engineering properties of the cement mortar / Journal of the Korean Recycled Construction Resources Institute 5(4):129~136
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