Ultra High Performance Concrete Reinforced with Short Steel and Carbon Fibers

Genadijs Šahmenko, Andrejs Krasnikovs, Artūrs Lukašenoks, Māris Eiduks

Abstract


Fibers are usually used in High Performance Concrete with a purpose to increase bending strength and ductility. Important properties are the peak value of bearing stress (strength) and post-cracking behavior of bended element. In the framework of an experimental part, Ultra High Performance mix compositions were prepared using intensive mixer. Short steel fibers and carbon micro fibers in amount of 1% by volume, as well as its combination were used for cement matrix reinforcing. Results of compressive and bending tests proved an increase of strength value in the case of use both steel and carbon fibers. Carbon fibers were decreased the effect of explosive collapse of the UHPC cement matrix, at the same time still brittle bending behavior was take place. Steel fibers considerably improved bending ductility thanks to a pull-out mechanism of steel fibers. The best results were achieved in the case of combined application of both carbon and steel fibers.


Keywords


Steel fiber, carbon fiber, Ultra High Performance Concrete, bending behavior

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References


N. Banthia, V. Bindiganavile, J. Jones, and J. Novak, “Fiber-reinforced concrete in precast concrete applications: Research leads to innovative products.,” PCI J., vol. Summer 201, pp. 33–46, 2012.

B. R. Maidl, Steel Fibre Reinforced Concrete. Berlin: Ernst and Sohn, 1995, p. 292.

P. Lura and G. Pietro Terrasi, “Reduction of fire spalling in high-performance concrete by means of superabsorbent polymers and polypropylene fibers: Small scale fire tests of carbon fiber reinforced plastic-prestressed self-compacting concrete,” Cem. Concr. Compos., vol. 49, pp. 36–42, 2014.

P. Kalifa, G. Chene, and C. Galle, “High-temperature behaviour of HPC with polypropylene fibres: From spalling to microstructure,” Cem. Concr. Res., vol. 31, pp. 1487–1499, 2001.

D. Duthinh and M. Starnes, “Strength and ductility of concrete beams reinforced with carbon FRP and steel,” 2001.

M. Kononova, O.; Krasnikovs, A.; Dzelzitis, K.; Kharkova, G.; Vagel, A. & Eiduks, “MECHANICAL PROPERTIES OF COMPOSITES REINFORCED BY COTTON KNITTED FABRIC,” in Proceedings of 7th International DAAAM Baltic Conference “INDUSTRIAL ENGINEERING” 22-24 April 2010, Tallinn, Estonia, 2010, no. April, pp. 3–8.

P.-W. Chen and D. D. L. Chung, “Concrete reinforced with up to vol of short carbon fibers.pdf,” Composites, vol. 1, pp. 33–51, 1993.

S. Akihama, M. Aya, and H. Ikeda, “Carbon fiber reinforced concrete,” 1992.

Y. Xu and D. D. . Chung, “Carbon fiber reinforced cement improved by using silane-treated carbon fibers,” Cem. Concr. Res., vol. 29, no. 5, pp. 773–776, May 1999.

V. R. Falikman, Y. V. Sorokin, and O. M. Goryachev, “High-strength light-weight concrete: Technology and properties,” Bet. i Zhelezobet., no. 2, pp. 8–12, 2005.

I. Juhnevica and G. Shakhmenko, “The Influence of Different Pozzolanic Admixtures on Structure and Properties of Concrete,” in Proceedings of conference IbauSil-2012, 2012, p. 8.

V. Lusis and A. Krasnikovs, “Fiberconcrete with non-homogeneous fibers distribution,” in Vide. Tehnologija. Resursi - Environment, Technology, Resources, 2013, vol. 2, pp. 67–71.

A. Krasnikovs, A. Khabaz, and I. Telnova, “Numerical 3D Investigation of Non-Metallic ( Glass , Carbon ) Fiber Pull-out Micromechanics ( in Concrete Matrix ),” Sci. J. Riga Tech. Univ. Transp. Eng. Mech., vol. 33, pp. 103–108, 2010.

O. Kononova, V. Lusis, A. Galushchak, A. Krasnikovs, and A. MacAnovskis, “910. Numerical modeling of fiber pull-out micromechanics in concrete matrix composites,” J. Vibroengineering, vol. 14, no. 4, pp. 1852–1861, 2012.

A. Krasnikovs, O. Kononova, A. Machanovsky, and A. Khabaz, “Pull-out micro-mechanism for fibers in concrete,” in ECCM 2012 - Composites at Venice, Proceedings of the 15th European Conference on Composite Materials, 2012.




DOI: http://dx.doi.org/10.17770/etr2015vol1.196

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