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한국건축시공학회 / v.4, no.3, 2004년, pp.143-151 
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콘크리트 구조물의 완전순환이용을 위한 폐콘크리트계 미분말의 재생시멘트 활용 기술 연구
( A Study on the Technique to Manufacture Recycled Cement from Cementitious Powders for Complete Recycling of Concrete Structures ) |
| 박차원;안재철;강병희; 동아대학교 대학원 건축공학과;동아대학교 건축학부;동아대학교 건축학부;
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| 초 록 |
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| The purpose of this study is development of technique to use cementitious powder as recycle cement produced from deteriorated Concrete waste which has a large quantity of calcium carbonate. Therefore, after having theoretical consideration based on the properties of high-heated concrete and concerning about neutralization of Concrete, we analysis chemical properties of ingredients of cementitious powder. After making origin cement paste, then processing the accelarated carbonation, we consider the properties of hydration and chemical properties of cementitious powder under various temperature conditions. As a result of the thermal analysis, the $CaCO_3$ content of cementitious powder would affect decision of heat temperature to recover its hydrated ability because $CaCO_3$ content is increased when neutralization is progressed. And as a result of XRD analysis, in case of origin powder of non-neutralized paste, CaO peak is found at $700^{circ}C$. but, heat temperature to generate CaO would increase when the content of neutralized ingredients is increased. Finally, recycle cement heated at $700^{circ}C$ 120min. shows the best compressive strength when the content of neutralized ingredients in recycle cement is less then 50%. |
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| 키워드 |
| 폐콘크리트계 미분말;재생시멘트;수화성;중성화;Cementitious Powder from Concrete Waste;Recycled Cement;Hydraulic Properties;Neutralization; |
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한국건축시공학회지 / v.4, no.3, 2004년, pp.143-151
한국건축시공학회
ISSN : 1598-2033
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200411922932505)
언어 : 한국어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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