Effect of shrinkage reducing admixture on tensile and flexural behaviors of UHPFRC considering fiber distribution characteristics
- Authors
- Yoo, Doo-Yeol; Kang, Su-Tea; Lee, Joo-Ha; Yoon, Young-Soo
- Issue Date
- 12월-2013
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Ultra high performance fiber reinforced concrete; Image analysis; Interfacial transition zone; Mechanical properties; Shrinkage
- Citation
- CEMENT AND CONCRETE RESEARCH, v.54, pp.180 - 190
- Indexed
- SCIE
SCOPUS
- Journal Title
- CEMENT AND CONCRETE RESEARCH
- Volume
- 54
- Start Page
- 180
- End Page
- 190
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/101342
- DOI
- 10.1016/j.cemconres.2013.09.006
- ISSN
- 0008-8846
- Abstract
- This study investigated the effect of shrinkage reducing admixture (SEA) on the properties of ultra high performance fiber reinforced concrete (UHPFRC) including fluidity, compressive, single fiber pullout, tensile and flexural behaviors. In addition, the influence of fiber distribution characteristics such as fiber orientation, fiber dispersion, number of fibers, and packing density on the flexural behavior of UHPFRC was evaluated according to the amount of SRA, using an image processing technique that was developed. Three different SEA to cement weight ratios (0%, 1%, and 2%) were investigated on UHPFRC with 2 vol.% of steel fibers. The specimen without SRA exhibited the best performance in compressive, single fiber pullout, and tensile behaviors including load carrying capacity, strain capacity, and energy absorption capacity and had a highly densified interfacial transition zone between fiber and matrix. In particular, the flexural strength of UHPFRC varied with the fiber distribution characteristics, rather than the amount of SRA. (C) 2013 Elsevier Ltd. All rights reserved.
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Collections - College of Engineering > School of Civil, Environmental and Architectural Engineering > 1. Journal Articles
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