Effects of Different Types of Steel Fibers on the Mechanical Properties of High Strength Concrete

Abstract:

This paper is aimed at a comparison of different types of steel fibres in relation to their influence on the final mechanical properties of High Strength Concrete (HSC). The most affected characteristics of concrete were fracture energy, flexural and split strength, which are the main goal of using fibre reinforcement, as HSC has otherwise low ductility, that can result in sudden failure of a concrete structural element. Expected better behaviour of high-strength steel fibres hooked at the ends than of the ones of normal strength with only flattened ends was approved. The highest values of fracture energy was achieved with the longest steel fibres – 60 mm (diameter 0.75 mm). Whereas shorter fibres (30 mm) of the same diameter reached increased flexural and split strength.

• Periodical: Advanced Materials Research (Volume 1054)
• Pages: 80-84
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1054.80
• Online since: October 2014
• Authors: Jaroslava Koťátková*, Pavel Reiterman
• Keywords: High-Strength Concrete (HSC), Mechanical Property, Shape, Steel Fibres

References

[1] Reiterman, P., Jogl, M., Baumelt, V., Seifrt, J., 2014, Development and Mix Design of HPC and UHPFRC, Advanced Material Research, Vol. 982, pp.130-135.

DOI: 10.4028/www.scientific.net/amr.982.130

[2] Keppert, M., Vejmelková, E., Černý, R., Švarcová, S., Bezdička, P.: Microstructural changes and residual properties of fiber reinforced cement composites exposed to elevated temperatures, Cement Wapno Beton, 2012, Vol. 17/79, no. 2, pp.77-89.

[3] Zatloukal, J., Vavřiník, T., 2014, Influence of different mechanical properties to the concrete penetration resistence, Advanced Materials Research, Vol. 982, pp.119-124.

DOI: 10.4028/www.scientific.net/amr.982.119

[4] Vogel, F., Holcapek, O., Vavřiník, T., Keppert, M., Time progress of compressive strength of high performance concrete, Applied Mechanics and Materials, Vol. 486, pp.167-172.

DOI: 10.4028/www.scientific.net/amm.486.167

[5] Shah, A., A., Ribakov, Y., Recent trends in steel fibered high-strength concrete. Materials. 2011, vol. 32, 8-9, s. 4122-4151.

DOI: 10.1016/j.matdes.2011.03.030

[6] García-Taengua, E., Martí-Vargas, J., R., Serna P., Splitting of concrete cover in steel fiber reinforced concrete: Semi-empirical modeling and minimum confinement requirements. Construction and Building Materials. 2014, vol. 66, s. 743-751.

DOI: 10.1016/j.conbuildmat.2014.06.020

[7] Wang, Z.L., Wu, J., Wang, J., G., Experimental and numerical analysis on effect of fibre aspect ratio on mechanical properties of SRFC. Construction and Building Materials. 2010, vol. 24, issue 4, s. 559-565.

DOI: 10.1016/j.conbuildmat.2009.09.009

[8] Mára, M., Máca, P., 2014, Fracture surface measurement of concrete with respect to loading speed, Advanced Materials Research, Vol. 982, pp.94-99.

DOI: 10.4028/www.scientific.net/amr.982.94

[9] Mohammadi, Y., Singh, S., P., Kaushik S.,K., Properties of steel fibrous concrete containing mixed fibres in fresh and hardened state. Construction and Building Materials. 2008, vol. 22, issue 5, s. 956-965.

DOI: 10.1016/j.conbuildmat.2006.12.004

[10] Tvarog, M., Fornusek, J., 2014, Influence of casting direction on the mechanical properties of cementitious fiber reinforced composites, Advanced Materials Research, Vol. 982, pp.32-37.

DOI: 10.4028/www.scientific.net/amr.982.32

[11] Vlach, T., Novotná, M., Fiala, C., Laiblová, L., Hájek, P., Interaction of composite reinforcement produced from rovings with high performance concrete, in: P. Polach, L. Stuna (Eds. ), Proceedings of the 52th International Conference on Experimental Stress Analysis (EAN 2014), Vyzkumný a zkusebni ustav Plzeň, Plzeň, 2014, ISBN 978-80-231-0377-6.

DOI: 10.4028/www.scientific.net/amm.732.397

[12] Reiterman, P., Holcapek, O., Vogel, F., Jogl, M., Kotatkova, J., 2014, Fracture and mechanical properties of fire resistant fibre composites containing fine ground ceramic powder, Advanced Materials Research, Vol. 897, pp.192-195.

DOI: 10.4028/www.scientific.net/amr.897.192