강섬유 특성에 따른 고강도 콘크리트의 압축 및 휨 거동
Compressive and Flexural Behavior of High-Strength Concrete Incorporating Different Types of Hooked-End Steel Fibers
- Resource Type
- Article
- Authors
- 정우진; 김애화; 윤현도
- Source
- 한국공간구조학회지, 23(2), 92, pp.69-78 Jun, 2023
- Subject
- 건축공학
- Language
- 한국어
- ISSN
- 2287-7401
1598-4095
This paper investigates the effects of aspect ratio and volume fraction of hooked-end normal-strength steel fibers on the compressive and flexural properties of high-strength concrete with specified compressive strength of 60 MPa. Three types of hooked-end steel fibers with aspect ratios of 64, 67 and 80 were considered and three volume fractions of 0.25%, 0.50% and 0.75% for each steel fiber were respectively added into each high-strength concrete mixture. The test results indicated that the addition of normal-strength steel fibers is effective to improve compressive and flexural properties of high-strength concrete but fiber aspect ratio had little effect on the modulus of elasticity and compressive strength. As steel fiber content and aspect ratio increased, flexural beahvior of notched high-strength concrete beams was effectively improved.