Articles - Influence of steel fiber content and aspect ratio on the strength of high strength concrete
- Dongyeop Hana, Kyoung-Min Kimb*, Gun-Cheol Leec, Jung-Gu Choid and Gyung-Taeg Kohe
- a Engineering Research Institute, Seoul National University, South Korea b Architectural Engineering Research Team, Daewoo E&C, South Korea c Dept. of Architectural Eng., Korea National University of Transportation, South Korea d Dept. of Architectural Eng., Korea National University of Transportation, South Korea e Structural Engineering Research Division, Korea Institute of Construction Technology, South Korea
Abstract
The aim of this research is evaluating the strength properties of high strength fiber-reinforced concrete depending on replacement ratio and aspect ratio. As a part of producing SUPER concrete which has high ductility with fiber-reinforcement, both high mechanical properties and improved ductility should be achieved. Hence, mainly mechanical properties of the concrete with fiber was studied and from the results of the experiment, it was not shown the significant influence on compressive strength with fiber replacement ratio and aspect ratio, while as the fiber replacement ratio and aspect ratio were increased, the tensile and flexural strengths were improved. Especially, for fiber aspect ratio of 100, when the fiber replacement ratio was 2%, the most desired ductility was obtained.
Keywords: Fiber-reinforced concrete, Replacement ratio, Aspect ratio, SUPER concrete.
This Article
Copyright 2019 International Orgranization for Ceramic Processing. All rights reserved.Clean-Energy Research Institute(CRI), Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea
E-mail: jcpr@hanyang.ac.kr