Earticle

초록

영어

The demand for high-stength concrete is increasing worldwide, and the elastic modulus plays a very important role as a material variable in structual calculation considering the safety and usability of buildings, The elastic modulus estimation equation is presented independently by each country and association, and thus estimated value also shows a big difference. In this study, five types of high-stength concrete were produced, and the error with the previously suggested estimation equation was evaluated using the measured values. The compressive strength ranged from about 72 to 128Mpa, and the elastic modulus was 41 to 50 GPa. As a result, the CEB-FIP estimation equation showed the smallest error from the measured value of this study, so it was foud that the reliability in prediction the elastic modulus was the highest. The elastic modulus estimation equation suggested by the domestic regulation KDS estimates the elastic modulus lower than the measured value, which is thought to lead to overdesign, and it is thought that improvement is needed to further match the measured value even in the high-strength area.

목차

Abstract
1. 서론
2. 탄성계수 추정에 관한 기존 연구
3. 탄성계수 측정 시험
3.1 사용재료 및 배합
3.2 시험체 양생
3.3 탄성계수 측정
4. 탄성계수 측정 결과 및 고찰
4.1 굳기 전 콘크리트 물성
4.2 압축강도 및 탄성계수
5. 최적 추정식 평가
6. 결론
REFERENCES

저자

• 남민석 [ Nam, Min-Seok | 한국해양대 해양건축공학과 공학석사 ]
• 이준혁 [ Lee, Jun-Hyeok | 한국해양대 해양공간건축학부 학사과정 ]
• 위광우 [ Wi, Gwang-Woo | 한국해양대 해양공간건축학부 부교수, 공학박사 ]
• 박동천 [ Park, Dong-Cheon | 한국해양대 해양공간건축학부 정교수, 공학박사 ] Corresponding Author

참고문헌