Proceedings of the Korea Concrete Institute Conference (한국콘크리트학회:학술대회논문집)

Korea Concrete Institute (한국콘크리트학회)
권호 표지

A Study on the Mechanical Properties of Hybrid HPFRCs Using Micro and Macro Fibers

마이크로 및 매크로 섬유를 사용한 하이브리드 HPFRCC의 역학적 특성에 관한 연구

  • 김재환 (충남대학교 대학원 건축공학과) ;
  • 이의배 (충남대학교 대학원 건축공학과) ;
  • 김영선 (충남대학교 대학원 건축공학과) ;
  • 김영덕 (충남대학교 대학원 건축공학과) ;
  • 주지현 (충남대학교 대학원 건축공학과) ;
  • 김무한 (충남대학교 건축공학과)
  • Published : 2004.05.01
Download PDF
⟨ Previous Next ⟩

Abstract

Concrete is one of the principal materials for the structure and it is widely used all over the world. but it shows extremely brittle failure under bending and tensile load. Recently to improve such a poor property. High Performance Fiber Reinforced Cementitious Composites (HPFRCC) have been developed. and it are defined by an ultimate strength higher than their first cracking strength and the formation of multiple cracking during the inelastic deformation process. This study is to develop the hybrid HPFRCC with high ductility and strain capacity in bending and tensile load. and the three-point bending test on hybrid HPRFCC reinforced with micro and macro fibers is carried out in this paper. As the results of the bending tests. hybrid HPFRCCs reinforced with PVA40+SF and PVA100+PVA660 showed the high ultimate bending stress, multiple cracks and displacement hardening under bending load.

Keywords