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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
대한건축학회 대한건축학회 논문집 - 구조계 대한건축학회논문집 - 구조계 제20권 제1호
발행연도
2004.1
수록면
67 - 74 (8page)

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This study makes experimental specimen to examine of concrete and structural characteristics of reinforced concrete beams such as shear destruction according to contents of shells in concrete using sea sand containing river sand and shells (8%, 10%, 20%, 30% and 40%) and age, evaluates its load, deflection, crack and destruction from load increase and ductility capacity and aims at supplying the data for applying it to actual structures. The results obtained through material test of concrete and static experiment of members using sea sand containing river sand and shells are as follows;
As a result of strength test by shell contents, it is found that compressive strength of specimen using sea sand containing 8% of shells is highest and the more shell contents are, its compressive strength is reduced.
Compressive strength of specimen using sea sand containing 8% of shells was reduced by 7.34% at 28 days of age and by 3.87% at 365 days of age compared to specimen using river sand.
The flexural capacity test of reinforced concrete beam showed that specimen using sea sand containing shells has reduce ductility capacity compared to specimen using river sand.
In strain of bar, specimen using river sand showed least result on tensile bar compressive bar and stirrup bar showed a great increase of strain of bar after yield. It is guessed that bar bear the compressive force and shear force after the loss of compressive strength of concrete.
Therefore, in case of using sea sand containing shells, mixing and member design considering compressive strength and ductility capacity of concrete are needed. And it guessed that using sea sand containing over 10% of shells will be problematic.

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Abstract

1. 서론

2. 실험 계획

3. 실험 결과 및 고찰

4. 부재의 연성능력

5. 결론

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UCI(KEPA) : I410-ECN-0101-2009-540-014080915