Investigation on Improve Durability of Fiber-Reinforced High-Strength concrete

섬유보강 고강도 콘크리트의 내구성능 향상에 관한 검토

  • 이혜진 (단국대학교 건축공학과) ;
  • 하정수 (단국대학교 건축공학과) ;
  • 김규진 (단국대학교 건축공학과) ;
  • 이영도 (경동대학교 건축토목공학부) ;
  • 정상진 (단국대학교 건축공학과)
  • Published : 2013.05.09

Abstract

Recently, with the increase in the construction of ultra-high buildings and long-span structures, there is great demand for high-strength concrete which can reduce the structural weight and thickness of member sections. While developing high-strength concrete to meet performance requirements, certain issues at the design stage must also be considered. The issues include diseconomy from a great amount of per-unit cement, spalling failure by fire at ultra-high building, autogenous shrinkage caused by increased hydration activity of binder from use of a superplasticizer. Therefore, the purpose of this study is examined the strain characteristics of Fiber-reinforced-high-strength concrete(FRHSC), which differ from those of general concrete owing to autogenous shrinkage. Based on the experimental data, we proposed an autogenous shrinkage prediction model.

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