Characteristics of Restrained Drying Shrinkage on Arched Steel Fiber-Reinforced Concrete
- Authors
- Kim, Dae-Jin; Kim, Sun-Hee; Choi, Won-Chang
- Issue Date
- Aug-2021
- Publisher
- MDPI
- Keywords
- Arched steel fiber; Desk slab; Restrained drying shrinkage; Steel fiber-reinforced concrete
- Citation
- APPLIED SCIENCES-BASEL, v.11, no.16
- Journal Title
- APPLIED SCIENCES-BASEL
- Volume
- 11
- Number
- 16
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/82027
- DOI
- 10.3390/app11167537
- ISSN
- 2076-3417
- Abstract
- The volumetric changes of concrete, including drying shrinkage, are effectively controlled in steel fiber-reinforced concrete (SFRC) mixtures due to the action of the included steel fiber. The current code provision in ANSI/SDI C-2017 allows a minimum steel fiber content of 0.2% of the volume fraction of concrete to control drying shrinkage and to manage cracking in the slab. Limited research has addressed replacing the shear reinforcement in concrete beams with steel fiber. In this study, we used newly developed arched steel fiber to evaluate shrinkage characteristics, including free-drying shrinkage and restrained drying shrinkage, of SFRC and scaled-down deck slab elements. We compared the measured drying shrinkage test results to predicted results obtained from models found in the literature. We confirmed that, overall, the number, width, and length of cracks were reduced significantly at the surface of SFRC slabs when arched steel fiber at 0.2% volume fraction was included in the mixture. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
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