Abstract
This study investigates the effect of the degree of bending and do** of steel fibers on the macroscopic mechanical properties of UHPC. To achieve this, four curvilinear steel fibers of different curvature radius (20, 30, 40 and 50 mm) and straight steel fiber were employed. Mechanical properties of UHPC including flowability, compressive and flexural strengths were assessed. Moreover, analysis of flexural tests on curvilinear fiber UHPC specimens was performed using finite element simulation. The test results show that the use of curved steel fibers reduces the flowability of the matrix compared to straight fibers in the UHPC matrix, and flowability of UHPC decreased significantly with increase of fiber bending. The results of the compressive and flexural tests showed that the compressive and flexural strengths of the specimens were significantly improved with the increase of fiber do** compared with the matrix without fiber do**. In terms of compressive strength, the curvilinear steel fibers can further increase the compressive strength of UHPC by 5–8 MPa compared with the straight steel fibers. In terms of flexural strength, the flexural strength of the specimens doped with straight fibers was higher than that of the curvilinear fiber specimens when the fiber dosing was less than 1% by volume due to the poor dispersion of curvilinear fibers. However, the average bonding strength of curved fibers was higher than that of straight fibers, and the flexural strength of curved fiber specimens was better than that of straight fiber specimens when the fiber dosing was 1.5 and 2.0%.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Similar content being viewed by others
References
de Larrard F, Sedran T (1994) Optimization of ultra-high-performance concrete by the use of a packing model. Cem Concr Res 24(6):997–1009
Barnett SJ, Lataste JF, Parry T et al (2010) Assessment of fibre orientation in ultra high performance fibre reinforced concrete and its effect on flexural strength. Mater Struct 43(7):1009–1023
Shin HO (2015) Effect of confinement on the axial load response of ultrahigh-strength concrete columns. J Struct Eng 141(6):26–37
JU H, Kim KS, Lee DH, Hwang JH, Choi SH, OH YH (2015) Torsional responses of steel fiber-reinforced concrete members. Compos Struct 129:143–156
Abdallah S, Fan M (2017) Anchorage mechanisms of novel geometrical hooked-end steel fibres. Mater Struct 50(2):139
Won JP, Lee JH, Lee SJ (2015) Flexural behaviour of arch-type steel fibre reinforced cementitious composites. Compos Struct 134:565–571
Naaman AE (2003) Engineered steel fibers with optimal properties for reinforcement of cement composites. J Adv Concr Technol 1(3):241–252
Wille K, Naaman AE (2012) Pullout behavior of high-strength steel fibers embedded in ultra-high-performance concrete. ACI Mater J 109(4):479–488
Murali G, Venkatesh J, Lokesh N;Nava TR, Karthikeyan K (2018) Comparative experimental and analytical modeling of impact energy dissipation of ultra-high performance fibre reinforced concrete. KSCE J Civ Eng 22(8):3112–3119
Tai YS (2009) Uniaxial compression tests at various loading rates for reactive powder concrete. Theoret Appl Fract Mech 52(1):14–21
Zhang HR, Ji T, Lin XY (2019) Pullout behavior of steel fibers with different shapes from ultra-high performance concrete (UHPC) prepared with granite powder under different curing conditions. Constr Build Mater 211:688–702
Kim DJ, Park SH, Ryu GS (2011) Comparative flexural behavior of hybrid ultra high performance fiber reinforced concrete with different macro fibers. Constr Build Mater 25(11):4144–4155
Yoo DY, Kim S, Kim JJ, Chun B (2019) An experimental study on pullout and tensile behavior of ultra-high-performance concrete reinforced with various steel fibers. Constr Build Mater 206:46–61
Kim JJ, Jang YS, Yoo DY (2020) Enhancing the tensile performance of ultra-high-performance concrete through novel curvilinear steel fibers. J Market Res 9(4):7570–7582
GB/T17671-1999 (1999) Method of testing cements-determination of strength. China Building Industry Press, Bei**g (In Chinese)
GB/T2419-2005 (2005) Method for determination of fluidity of cement mortar. China Building Industry Press, Bei**g (In Chinese)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2023 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Zhang, C., Xu, R., Lai, Z., Huang, W., Yang, Z., Zhang, Z. (2023). Study on Performance of UHPC with Curvilinear Steel Fibers. In: Nia, E.M., Ling, L., Awang, M., Emamian, S.S. (eds) Advances in Civil Engineering Materials. Lecture Notes in Civil Engineering, vol 310. Springer, Singapore. https://doi.org/10.1007/978-981-19-8024-4_28
Download citation
DOI: https://doi.org/10.1007/978-981-19-8024-4_28
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-19-8023-7
Online ISBN: 978-981-19-8024-4
eBook Packages: EngineeringEngineering (R0)