Abstract
This paper reports the flexural behaviour of conventional reinforced concrete beams with Slurry Infiltrated Fibrous Concrete (SIFCON) at various locations in the beam. Composite beams are cast with a layer of SIFCON at various locations of the conventional RC beam. Beams made entirely with RC, Fibre Reinforced Concrete (FRC) and SIFCON are also investigated for comparison. A total number of twenty one specimens corresponding to seven test series are cast and tested under two point flexural forward cyclic loading system. The parameters like load carrying capacity, stiffness degradation, ductility and energy absorption capacity are assessed. The concrete mix for RC beams are designed to obtain a concrete grade of M30. For SIFCON, the fibre volume fraction is 9%. The steel fibers used in the study are round crimped fibers having 0.5 mm diameter and aspect ratio of 60. Results indicate that the use of SIFCON in conventional RC beams have enhanced the cracking behavior in terms of considerable increase in the first crack load and in the formation of larger number of finer cracks. The ultimate load carrying capacity, stiffness, ductility and energy absorption capacity are increased to a greater extent for composite beams compared with that of conventional RC beams.
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Abdollahi, B., Bakhshi, M., Mirzaee, Z., Shekarchi, M., and Motavalli, M. (2012). “SIFCON strengthening of concrete cylinders in comparison with conventional GFRP confinement method.” Construction and Building Materials, Vol. 36, pp. 765–778, DOI: 10.1016/j.conbuildmat.2012.06.021.
Ban, H. and Bradford, M. A. (2013). “Flexural behaviour of composite beams with high strength steel.” Engineering Structures, Vol. 56, pp. 1130–1141, DOI: 10.1016/j.engstruct.2013.06.040.
Elnono, M. E., Salem, H. M., Farahat, A. M., and Elzanaty, A. H. (2009). “Use of slurry infiltrated fibre concrete in reinforced concrete corner connections subjected to opening moments.” Journal of Advanced Concrete Technology, Vol. 7, No. 1, pp. 51–59.
Farnam, Y., Moosavi, M., Shekarchi, M., Babanajad, S. K., and Bagherzadeh, A. (2010). “Behavior of Slurry Infiltrated Fibre Concrete (SIFCON) under triaxial compression.” Cement and Concrete Research, Vol. 40, Issue 11, pp. 1571–1581, DOI: 10.1016/j.cemconres. 2010.06.009.
Ipek, M., Aksu, M., Uysal, M., Yilmaz, K., and Vural, I. (2015). “Effect of pre-setting pressure applied flexure strength and fracture toughness of new SIFCON + RPC composite during setting phase.” Construction and Building Materials, Vol. 78, pp. 90–96, DOI: 10.1016/j.conbuildmat.2015.01.023.
IS:10262 (1982). “Recommended guidelines for concrete mix design.” Bureau of Indian Standards, New Delhi, India.
Josifek, C. and Lankard, D. R. (1987). “SIFCON: Slurry infiltrated fibrous concrete.” Proc. Int. Conf. on Fibre Reinforced Concrete, Madras, India, pp. 7.15-7.23.
Lin, C., Kayali, O., Morozov, E. V., and Sharp, D. J. (2011). “Integrated plain and slurry infiltrated fibre concrete (IP-SIFCON) composite beams’, Proc. 16th Int. Conf. on Composite Structures, Porto, pp. 1–3.
Rao, S. H., Ghorpade, V.G., Ramana, N. V., and Gnaneswar, K. (2010). “Response of SIFCON two-way slabs under impact loading.” International Journal of Impact Engineering, Vol. 37, Issue 4, pp. 452–458, DOI: 10.1016/j.ijimpeng.2009.06.003.
Rao, S. H., Gnaneswar, K., and Ramana, N. V. (2008). “Behavior of simply supported steel reinforced SIFCON two way slabs in punching shear.” Indian Journal of Engineering & Material Sciences, Vol. 15, pp. 326–333.
Sashidhar, C. H., Rao, S., Gnaneswara, K., and Ramana, N. V. (2011). “Flexural behavior of SIFCON produced with low tensile strength steel fibre.” The Indian Concrete Journal, pp. 37–42.
Shannag, M. J., Barakat, S., and Jaber, F. (2001). “Structural repair of shear deficient reinforced concrete beams using SIFCON.” Magazine of Concrete Research, Vol. 53, No. 6, pp. 391–403.
Sharma, H. K., Singh, V. P., and Mukeshkumar. (2008). “Structural optimization and performance of SIFCON plates.” Proc. Int. Conf. on Applied Computer & Applied Computational Science, Hangzhou, China, pp. 787–792.
Thirugnanam, G. S., Govindan, P., and Sethurathnam, A. (2001). “Ductile behavior of SIFCON structural members.” Journal of Structural Engineering, Vol. 28, No.1, pp. 27–32.
Thirugnanam, G. S. (2002). “Experimental study on behavior of multibay multi-storey RC frames with SIFCON beam column joints subjected to seismic type loading, PhD Thesis, Bharathiar University, Coimbatore, India.
Tuyan, M. and Yazici, H. (2012). “Pull-out behavior of single steel fiber from SIFCON matrix.” Construction and Building Materials, Vol. 35, pp. 571–577, DOI: 10.1016/j.conbuildmat.2012.04.110.
Vasdravellis, G., Uy, B., Tan, E. L., and Kirkland, B. (2015). “Behaviour and design of composite beams subjected to sagging bending and axial compression.” Journal of Constructional Steel Research, Vol. 110, pp. 29–39, DOI: 10.1016/j.jcsr.2015.03.010.
Wu, Y. F., Jiang, J. F., and Liu, K. (2010). “Perforated SIFCON blocks-An extraordinary ductile material ideal for use in compression yielding structural systems.” Construction and Building Materials, Vol. 24, pp. 2454–2465, DOI: 10.1016/j.conbuildmat.2010.06.011.
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Balaji, S., Thirugnanam, G.S. Behaviour of reinforced concrete beams with SIFCON at various locations in the beam. KSCE J Civ Eng 22, 161–166 (2018). https://doi.org/10.1007/s12205-017-0498-9
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DOI: https://doi.org/10.1007/s12205-017-0498-9