Effect of fiber content on mechanical and fracture properties of ultra high performance fiber reinforced cementitious composites
Source abstract
Abstract
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 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.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Innovative concrete reinforcement materials · Structural Behavior of Reinforced Concrete · Concrete and Cement Materials Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (34)
Show source-provided references
1. Fibre reinforced cement-based (FRC) composites after over 40years of development in building and civil engineering10.1016/j.compstruct.2008.03.006 ↗
2. Crack growth resistance hybrid fiber reinforced cement composites10.1016/S0958-9465(01)00043-9 ↗
3. Flexural behaviour of amorphous micro-steel fibre-reinforced cement composites10.1016/j.compstruct.2011.11.031 ↗
4. Early age setting, shrinkage and tensile characteristics of ultra high performance fiber reinforced concrete10.1016/j.conbuildmat.2012.12.015 ↗
5. Influence of the ingredients on the compressive strength of UHPC as a fundamental study to optimize the mixing proportion
6. Tensile fracture properties of an ultra high performance fiber reinforced concrete (UHPFRC) with steel fiber10.1016/j.compstruct.2009.06.012 ↗
7. Tensile stress-crack opening relationship of ultra high performance cementitious composites (UHPCC) used for bridge decks (in Korean)
8. Mechanical behavior of UHPC (ultra high performance concrete) according to hybrid use of steel fibers10.4028/www.scientific.net/AMR.287-290.453 ↗
9. Tensile behavior of ultra high performance hybrid fiber reinforced concrete10.1016/j.cemconcomp.2011.09.009 ↗
10. Strain-hardening UHP-FRC with low fiber contents10.1617/s11527-010-9650-4 ↗
11. Investigation on the flexural behavior of UHPCC considering the effect of fiber orientation distribution10.1016/j.conbuildmat.2011.07.003 ↗
12. Comparative flexural behavior of four fiber reinforced cementitious composites10.1016/j.cemconcomp.2008.08.002 ↗
13. Pullout behavior of inclined steel fiber in an ultra-high strength cementitious matrix10.1016/j.conbuildmat.2010.03.009 ↗
14. Kim DJ, El-Tawil S, Naaman AE. Correlation between single fiber pullout behavior and tensile response of FRC composites with high strength steel fiber. In: Proceedings of the Fifth International Workshop of High Performance Fiber Reinforced Cementitious Composites, RILEM Proceedings, Pro. 53, S.A.R.L., Cachan, France, July 2007. p. 67–76.
15. Pullout behavior of high-strength steel fibers embedded in ultra-high-performance concrete
16. Single fiber pullout form hybrid fiber reinforced concrete
17. Pullout behavior of steel fibers from cement-based composites10.1016/S0008-8846(97)00061-6 ↗
18. Cyclic responses of reinforced concrete composite columns strengthened in the plastic hinge region by HPFRC mortar10.1016/j.compstruct.2012.01.025 ↗
19. Standard test method for flow of hydraulic cement mortar
20. Standard test method for compressive strength of cylindrical concrete specimens
21. Mechanical, durability and microstructural characteristics of ultra-high-strength self-compacting concrete incorporating steel fibers10.1016/j.matdes.2009.04.024 ↗
22. Standard test method for static modulus of elasticity and Poisson’s ratio of concrete in compression
23. Hybrid fiber reinforced self-compacting concrete with a high-volume coarse fly ash10.1016/j.conbuildmat.2005.06.032 ↗
24. Properties of steel fiber reinforced fly ash concrete10.1016/j.conbuildmat.2007.11.002 ↗
25. Compressive behavior of ultra-high-performance fiber-reinforced concrete
26. Popovics · 1998
27. Effect of matrix strength on pullout behavior of steel fiber reinforced very-high strength concrete composites10.1016/j.conbuildmat.2010.06.059 ↗
28. Influences of fibers on drying shrinkage of fiber-reinforced cementitious composite10.1061/(ASCE)0733-9399(2001)127:1(37) ↗
29. Uchida Y, Niwa J, Tanaka Y, Katagiri M. Outlines of ‘Recommendations for design and construction of ultra high strength fiber reinforced concrete structures’ by JSCE. In: Proc. Int. workshop on high performance fiber reinforced cementitious composites in structural applications, Honolulu; 2005.10.3151/coj1975.43.3_3 ↗
30. Uchida Y, Kurihara N. Determination of tension softening diagrams of various kinds of concrete by means of numerical analysis. In: FRAMCOS-2, Germany; 1995.
31. Analysis of crack formation and crack growth in concrete by means of fracture mechanics and finite elements10.1016/0008-8846(76)90007-7 ↗
32. Fracture parameters by polylinear tension–softening analysis10.1061/(ASCE)0733-9399(1997)123:5(444) ↗
33. JSCE · 2004
34. Fracture properties of FRC determined through inverse analysis of wedge splitting and three-point bending tests10.3151/jact.3.423 ↗