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Effect of shrinkage-reducing admixture on biaxial flexural behavior of ultra-high-performance fiber-reinforced concrete
- Authors
- Yoo, Doo-Yeol; Kim, Jihwan; Zi, Goangseup; Yoon, Young-Soo
- Issue Date
- 1-8월-2015
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Ultra-high-performance fiber-reinforced concrete; Shrinkage-reducing admixture; Compression; Fiber pullout; Biaxial flexure; Toughness
- Citation
- CONSTRUCTION AND BUILDING MATERIALS, v.89, pp.67 - 75
- Indexed
- SCIE
SCOPUS
- Journal Title
- CONSTRUCTION AND BUILDING MATERIALS
- Volume
- 89
- Start Page
- 67
- End Page
- 75
- ISSN
- 0950-0618
- Abstract
- This study aims to investigate the effect of shrinkage-reducing admixture (SEA) on the mechanical properties of ultra-high-performance fiber-reinforced concrete (UHPFRC). Three different SEA to cement weight ratios (0%, 1%, and 2%) were considered using the UHPFRC including 2% of smooth steel fibers by volume. The specimen without SEA exhibited the best performance in almost all aspects of the mechanical behaviors in compression, fiber pullout, and biaxial flexure including load carrying capacity, strain capacity, and energy absorption capacity (pullout energy and toughness). The mechanical performances deteriorated with the increase in the amount of SEA up to 2%. Finally, a suggestion was made to define the first cracking point of deflection-hardening UHPFRC under biaxial flexure stress. (C) 2015 Elsevier Ltd. All rights reserved.
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