HYB(FRP Hybrid Bar) is composite structural material that combines reinforced bar and FRP. HYB has high elastic modulus and after-yield-hardening properties, despite its corrosion resistance and light weight. HYB under development has relatively stable corrosion durability. This study performs fundamental experiments for the long period UV exposed HYB, and carries out pull-out test for the freezing-thawing exposed specimens of ordinary reinforced bar, HYB, and UV exposed HYB. The effect of UV exposure and freezing-thawing did not affect the tensile property and strength of HYB. However, the bond strength reduction on the environment of accelerated corrosion should be considered in further study.

ABSTRACT
 1. 서 론
 2. 연구내용 및 방법
 3. 자외선 및 동결융해에 노출된 철근 및 HYB의인장거동
  3.1 실험개요
  3.2 자외선실험을 거친 철근 및 HYB의 인장특성
  3.3 자외선 및 동결융해에 노출된 철근 및 HYB를 가진 콘크리트의 인발거동
 4. 결 론
 References

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• 유영준(한국건설기술연구원 구조융합연구소) | You Young-Jun
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• 정규산(한국건설기술연구원 구조융합연구소) | Jung Kyu-San