Effect of Fiber Content on Mechanical and Fracture Properties of Ultra High Performance Fiber Reinforced Cementitious Composites
- Title
- Effect of Fiber Content on Mechanical and Fracture Properties of Ultra High Performance Fiber Reinforced Cementitious Composites
- Author
- 류두열
- Keywords
- Ultra high performance fiber reinforced cementitious composites; Micro steel fiberFiber contentInverse analysis; Tension?softening curve
- Issue Date
- 2013-12
- Publisher
- Elsevier Ltd
- Citation
- Composite Structures, 106, 742-753
- Abstract
- This study investigated the mechanical properties of ultra high performance fiber reinforced cementitious composites (UHPFRCC) with four different fiber volume fractions (Vf=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 3vol.% of fibers. A higher pullout strength was obtained from the inclusion of fibers in the matrix, and 2vol.% 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.
- URI
- http://www.sciencedirect.com/science/article/pii/S0263822313003565?via%3Dihubhttp://hdl.handle.net/20.500.11754/45786
- ISSN
- 0263-8223
- DOI
- 10.1016/j.compstruct.2013.07.033
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ARCHITECTURAL ENGINEERING(건축공학부) > Articles
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