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자료유형
학술저널
저자정보
저널정보
대한건축학회 대한건축학회 논문집 - 구조계 大韓建築學會論文集 構造系 第24卷 第8號
발행연도
2008.8
수록면
203 - 210 (8page)

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초록· 키워드

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According to the concentration of concerns about super tall builiding, various technologies for constructing super tall building are using nowadays. For constructing super tall building, maintenance properties of remicon slump flow considered a traffic jam and a delivery time of high strength concrete for direct pressure mix until 500m height must be required. And, super tall building above 100 floors is required that each floor's height is more than 4 meters, and each core wall's thickness is more than 60㎝.
So, this study is the fundamental technology of direct pumping for high strength concrete to the targeted height during the construction and the full scale mock-up test for the successive accomplishment of super tall building, Test results are as follows;
In the result of pumpability test, as pipe friction factor became higher, flow resistance was increased and delivery output was reduced. Before concrete pumping, the aimed fresh concrete properties of high flowable concrete were well satisfied. After concrete pumping, slump flow loss occurred in the case of 70㎫, and compressive strengths were higher than design strength.
And, in the result of full scale mock-up test results, real strength of core wall was satisfied with design strength at 28 days regardless of types of strength, and lower part's strength was a little higher than upper part's strength. Lateral force was evaluated with max. 4.5t/m2, and hydration temperature of test was evaluated that maximum heat of central part revealed about 80℃ at 70㎫ and 65℃ at 50㎫, and, the difference between inner and outer part revealed about 30℃ at 70㎫ and 12℃ at 50㎫. Also, no by hydration temperature was not shown on the surface.

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Abstract
1. 서론
2. 펌프압송에 의한 유동성변화의 메카니즘
3. 초고층 직압 타설을 위한 고강도콘크리트 펌퍼빌리티테스트
4. 1:1 Scale Core Wall Mock-up 테스트
5. 결론 및 추후연구
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