Flexural Behaviors of Modified Recycled Aggregate Concrete Reinforced with Pultruded GFRP

Abstract:

Corrosion of steel reinforcement in underwater concrete structures continues to be a problem in the modern era. The possibility of employing pultruded glass fibre reinforced polymer (GRFP) I beams to replace traditional steel reinforcement in an encased beam is still being explored. The purpose of this research is to further investigate the effects of incorporating treated recycled concrete aggregate (RCA) and discrete synthetic fibres, specifically Polyolefin (PO) and Fibrillated Polypropylene (PP) fibres, in the production of concrete beam reinforced with GFRP I beam for underwater construction. Five beams were constructed and tested in this investigation using a four-point loading arrangement. The load–deflection curve, stress–strain curve, and initial and ultimate fracture loads are all included in the test parameter set. The results indicate that treating RCA and fibres greatly increases the flexural capacity of modified recycle aggregate concrete (RAC) beams compared to unmodified RAC beams.

• Periodical: Key Engineering Materials (Volume 934)
• Pages: 189-195
• DOI: https://doi.org/10.4028/p-n4v65b
• Online since: November 2022
• Authors: Sallehan Ismail*, Mahyuddin Ramli
• Keywords: Fibre Reinforced Concrete, Flexural Behaviour, Recycled Aggregate Concrete

References

[1] W.H. Kwan, M. Ramli, K.J. Kam, M.Z. Sulieman, Influence of the amount of recycled coarse aggregate in concrete design and durability properties, Construction and Building Materials 26(1) (2012) 565-573.

DOI: 10.1016/j.conbuildmat.2011.06.059

[2] J. Pacheco, J. de Brito, J. Ferreira, D. Soares, Flexural load tests of full-scale recycled aggregates concrete structures, Construction and Building Materials 101 (2015) 65-71.

DOI: 10.1016/j.conbuildmat.2015.10.023

[3] M. Arezoumandi, A. Smith, J.S. Volz, K.H. Khayat, An experimental study on flexural strength of reinforced concrete beams with 100% recycled concrete aggregate, Engineering Structures 88 (2015) 154-162.

DOI: 10.1016/j.engstruct.2015.01.043

[4] D. Gao, L. Zhang, Flexural performance and evaluation method of steel fiber reinforced recycled coarse aggregate concrete, Construction and Building Materials 159 (2018) 126-136.

DOI: 10.1016/j.conbuildmat.2017.10.073

[5] S. Seara-Paz, B. González-Fonteboa, F. Martínez-Abella, J. Eiras-López, Flexural performance of reinforced concrete beams made with recycled concrete coarse aggregate, Engineering Structures 156 (2018) 32-45.

DOI: 10.1016/j.engstruct.2017.11.015

[6] W. Alnahhal, O. Aljidda, Flexural behavior of basalt fiber reinforced concrete beams with recycled concrete coarse aggregates, Construction and Building Materials 169 (2018) 165-178.

DOI: 10.1016/j.conbuildmat.2018.02.135

[7] H. Dong, Y. Song, W. Cao, W. Sun, J. Zhang, Flexural bond behavior of reinforced recycled aggregate concrete, Construction and Building Materials 213 (2019) 514-527.

DOI: 10.1016/j.conbuildmat.2019.03.238

[8] I. Maruyama, M. Sogo, T. Sogabe, R. Sato, K. Kawai, Flexural Properties of Reinforced Recycled Concrete Beams, in: E. Vázquez, C.F. Hendriks, G.M.T. Janssen (Eds.) International RILEM Conference on the Use of Recycled Materials in Buildings and Structures, RILEM Publications, Barcelona, Spain, 2004, pp.526-535.

DOI: 10.3151/jact.5.43

[9] B. González-Fonteboa, F. Martínez-Abella, Shear strength of recycled concrete beams, Construction and Building Materials 21(4) (2007) 887-893.

DOI: 10.1016/j.conbuildmat.2005.12.018

[10] G. Fathifazl, A.G. Razaqpur, O.B. Isgor, A. Abbas, B. Fournier, S. Foo, Flexural performance of steel-reinforced recycled concrete beams, ACI Structural Journal 106(6) (2009) 858-867.

DOI: 10.1680/macr.2008.61.7.387

[11] S. Ismail, M. Ramli, Mechanical strength and drying shrinkage properties of concrete containing treated coarse recycled concrete aggregates, Construction and Building Materials 68(0) (2014) 726-739.

DOI: 10.1016/j.conbuildmat.2014.06.058

[12] B. Li, Y. Chi, L. Xu, Y. Shi, C. Li, Experimental investigation on the flexural behavior of steel-polypropylene hybrid fiber reinforced concrete, Construction and Building Materials 191 (2018) 80-94.

DOI: 10.1016/j.conbuildmat.2018.09.202

[13] M. Gümüş, A. Arslan, Effect of fiber type and content on the flexural behavior of high strength concrete beams with low reinforcement ratios, Structures 20 (2019) 1-10.

DOI: 10.1016/j.istruc.2019.02.018

[14] S. Ismail, M. Ramli, Effects of adding fibre on strength and permeability of recycled aggregate concrete containing treated coarse RCA, International Journal of Civil, Architectural, Structural and Construction Engineering 8(8) (2014) 890-896.

[15] W.H. Kwan, M. Ramli, Indicative performance of fiber reinforced polymer (FRP) encased beam in flexure, Construction and Building Materials 48 (2013) 780-788.

DOI: 10.1016/j.conbuildmat.2013.07.013

[16] G. Ma, Y. Huang, F. Aslani, T. Kim, Tensile and bonding behaviours of hybridized BFRP–steel bars as concrete reinforcement, Construction and Building Materials 201 (2019) 62-71.

DOI: 10.1016/j.conbuildmat.2018.12.196