Effect of Fiber Content on Mechanical and Fracture Properties of Ultra High Performance Fiber Reinforced Cementitious Composites
- Authors
- Yoo, Doo Yeol; Lee, Joo-Ha; Yoon, Young-Soo
- Issue Date
- Dec-2013
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Ultra high performance fiber reinforced cementitious composites; Micro steel fiber; Fiber content; Inverse analysis; Tension-softening curve
- Citation
- COMPOSITE STRUCTURES, v.106, pp.742 - 753
- Indexed
- SCIE
SCOPUS
- Journal Title
- COMPOSITE STRUCTURES
- Volume
- 106
- Start Page
- 742
- End Page
- 753
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/161106
- DOI
- 10.1016/j.compstruct.2013.07.033
- ISSN
- 0263-8223
- Abstract
- This study investigated the mechanical properties of ultra high performance fiber reinforced cementitious composites (UHPFRCC) with four different fiber volume fractions (V-f=1%, 2%, 3%, and 4%) within an identical mortar matrix. The higher amount of fiber resulted in an improvement of load carrying capacity and elastic modulus in compression up to 3 vol.% of fibers. A higher pullout strength was obtained from the inclusion of fibers in the matrix, and 2 vol.% of fibers provided the best performance in all aspects of fiber pullout behavior including average and equivalent bond strengths and pullout energy. The flexural strength was pseudo-linearly increased with increase in fiber volume fraction, despite an insignificant difference in the first cracking load. Furthermore, a bi-linear softening curve for UHPFRCC was suggested based on the result of inverse analysis, and it was verified through comparison with the experimental data.
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