Earticle

초록

영어

This paper presents studies of the long-term behavior of the beams with recycled aggregate in transfer ratio under sustained loading. In this experimental program, three beams with replacement level(0%, recycled coarse aggregate 100%, recycled fine aggregate 50%) were tested in long-term bending to evaluate flexural strengthening effect of recycled aggregate and flexural performance when the sustained load removed. The beam were designed with net span of 2,000㎜ and rectangular cross-section of 170㎜ width and 170㎜ effective depth. Observation were recorded regularly for 380days on sustained multiple load. The experimental results showed that reinforced concrete beams with recycled aggregate(water absorption : 1.86～3.64%) were about similar long-term bending flexural mode with natural aggregate concrete beam. And concrete beams with recycled aggregate were higher than natural aggregate concrete beam.

목차

Abstract
 1. 서론
 2. 실험
  2.1 시험체 계획
  2.2 사용재료
  2.3 실험방법
 3. 실험결과 및 분석
  3.1 장기 휨성능 평가
  3.2 지속하중 제하시 거동
 4. 결론
 참고문헌

저자

• 이언영 [ Lee Eon-Young | 충남대학교 건축공학과 석사과정, 대한주택공사 차장 ]
• 윤현도 [ Yun Hyun-Do | 충남대학교 건축공학과 교수, 공학박사 ]
• 지상규 [ Ji Sang-Kyu | 충남대학교 건축공학과 석사과정 ]

참고문헌