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Behavior and Strength of Concrete Cylinders Confined by Reinforced Concrete Jacket and Ferro Cement Overlay

Journal Name:

  • International Journal of Science and Engineering Investigations

Publication Year:

  • 2016

Key Words:

Author NameUniversity of Author
Abstract (2. Language): 
Nowadays economy, serviceability, feasibility, time parameter, access to site, sustainability and extension of existing structure are prime concerns for the construction of any structure. So as to make these variables agrreeable, retrofitting or strengthening of existing structures draw interests of civil engineers and researchers everywhere throughout the world. Retrofitting is the modification of existing structures and/or structurally deficient members to make them more resistant to deflection and increased load and seismic activity by using the confinement effect of reinforced concrete, FRP, CFRP, ferrocement overlay, steel plate, etc. In this paper an attempt has been made to study the behavior and strength of concrete cylinders confined by the reinforced concrete jacket and ferrocement overlay. 45 concrete cylinders were cast and categorized into 4 groups. The first group of 9 specimens was confined with reinforced concrete confinement, second and third group of 9 specimens were retrofitted with one and two layers of ferrocement overlay respectively. No retrofitting techniques were applied to the remaining 18 specimens, categorized as fourth group. All cylinders were tested under axial compressive load. From the experimental investigation, it was found that between the two strengthening techniques, reinforced concrete confinement showed the higher capacity increase and one layer ferrocement overlay confinement showed the lower capacity increase with respect to the axial capacity of plain concrete (control) cylinders. The load-deflection responses of the strengthened specimens were also observed, which represent the ductility of confined cylinders over plain concrete cylinders and the failure mode after applying concentric axial loads was also investigated.
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REFERENCES

References: 

[1] K. Takiguchi, “Shear strengthening of reinforced concrete columns using ferrocement jacket,” Struct. J., 2001.
[2] K. Abedi, H. Afshin, and M. Shirazi, “Numerical study on the seismic retrofitting of reinforced concrete columns using rectified steel jackets,” Asian J. Civ. Eng. (Building …, 2010.
[3] G. Yau, “Repair And Strengtheningtkening Of Columns With Fibre Reinforced Composites,” 1999.
[4] S. Waghmare, “Materials and jacketing technique for retrofitting of structures,” … Adv. Eng. Res. …, 2011.
[5] N. Islam, K. S. Roy, K. Islam, M. Imran, and A. Hoosain, “Seismic Vulnerability Assessment Of Existing Reinforced Concrete Residential Buildings By Japanese Method,” in 1st International Conference on Advances in Civil Infrastructure and Construction Materials (CICM 2015), At Dhaka, Bangladesh, 2015, pp. 434–444.
[6] G. Kaliyaperumal and A. Sengupta, “Seismic retrofit of columns in buildings for flexure using concrete jacket,” ISET J. Earthq. Technol., 2009.
[7] E. Júlio and F. Branco, “Reinforced concrete jacketing-Interface influence on cyclic loading response,” ACI Struct. J., 2008.
[8] J. Mander, M. Priestley, and R. Park, “Theoretical stress-strain model for confined concrete,” J. Struct. …, 1988.
[9] A. Reinhorn, S. Prawel, and Z. Jia, “Experimental study of ferrocement as a seismic retrofit material for masonry walls,” J. Ferrocem., 1985.
[10] E. Júlio, F. Branco, and V. Silva, “Structural rehabilitation of columns with reinforced concrete jacketing,” Prog. Struct. …, 2003.
[11] G. Rai, “Different Strengthening Techniques for RC Columns,” R&M Int.
[12] M. M. A. Noyan, “Experimental study on the behavior of RC beam-column joint retrofitted with ferrocement jacket under cyclic loading,” 2014.
[13] R. Park and T. Paulay, Reinforced concrete structures. 1975.
[14] P. Sakthivel and A. Jagannathan, “Ferrocement construction technology and its applications–A Review,” 2013.
[15] P. Sarker, M. Begum, and S. Nasrin, “Fiber reinforced polymers for structural retrofitting: A review,” J. Civ. Eng., 2011.
[16] J. Ross, “Analytical Models for Reinforced Concrete Columns Retrofitted with Fiber-Reinforced Polymer Composites,” 2007.
[17] S. Sheikh and S. Uzumeri, “Analytical model for concrete confinement in tied columns,” J. Struct. Div., 1982.

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