The Influence of Rib Configuration on Bond Strength Development between Steel and Concrete

Shoib Bashir Wani(1*), Dar Sarvat Gull(2), Ishfaq Amin(3)

(1) Department of Civil Engineering, B. S. Abdur Rahman University Vandalur, Chennai, India. PIN-600048
(2) Department of Civil Engineering, National Institute of Technology Srinagar, Jammu & Kashmir, India. PIN-190006
(3) Department of Civil Engineering, Maharshi Dayanand University Rothak, Haryana, India. PIN-124001
(*) Corresponding Author


The bond strength between rebar and concrete is important for the quality performance of reinforced concrete structures. At the interface, bond strength development mainly depends on surface configuration. Different rib configuration improves the strength significantly in high yield rebars as compared to mild steel. This study examines the bond strength behavior of ordinary MS (Mild Steel) rebars, HYSD (High Yield Strength Deformed) parallel rib, and HYSD diamond rib rebars. Experimental analysis to obtain pull-out behavior of rebar in concrete was based on IS 2770 Part I – 1967: Reaffirmed 2007; Indian Standard Methods of Testing Bond in Reinforced Concrete. Importantly, the concrete of M30 grade was used and a total of nine specimens were tested. The cubes of size 150mm x 150mm x 150mm were cast with centrally embedded rebar provided up to 20 mm from their bottom faces. Additionally, the pull-out test was conducted in 1000 kN capacity Universal Testing Machine. The usable bond strength values were calculated from the load at 0.025 mm free and 0.25 mm loaded end slips. The results showed that the usable bond strength value of HYSD diamond rib rebars is very large compared to MS and appreciably greater than HYSD parallel rib. Moreover, the usable bond strength of HYSD diamond rib rebars is 60.06% and 35.60 % greater than that of the MS rebars and HYSD parallel rib pattern rebars, respectively. The high frictional resistance developed in the bond strength test of HYSD diamond rib rebars because of the better mechanical interlocking. This was primarily due to the presence of a more frictional surface area of lugs.


Reinforced Concrete; Bond Strength; MS Rebar; HYSD Rebar; Rib Configuration

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Abrams, D. A., 1913. Tests of bond between concrete and steel. University of Illinois at Urbana Champaign, College of Engineering. Engineering Experiment Station.

Anil K. K., 2011,” A Rebar Durable Concrete Construction”, The Master Builder, pp.224-236, July, 2011.

Barbosa, M. T. G., and Filho, S. S., 2013. Investigation of bond stress in pull out specimens with high strength concrete. Journal of Researches in Engineering Civil and Structural Engineering 13(3), pp. 55-64

Ferguson, P. M., 1966. Bond stress the state of the art. Journal of the American Concrete Institute 63(1), pp. 1161-1190.

Gan, Y., 2000. Bond Stress and Slip Modeling In Nonlinear Finite Element Analysis of Reinforced Concrete Structures. Toronto: Master Thesis Report, University of Toronto.

Hong, S. and Park, S. K., 2012. Uniaxial bond stress-slip relationship of reinforcing bars in concrete. Advances in Materials Science and Engineering 2012.

Huang, Z., Engström, B., and Magnusson, J., 1996. Experimental and analytical studies of the bond behaviour of deformed bars in high strength concrete. In 4th International Symposium on the Utilization of High Strength/High Performance Concrete (Vol. 3).

Indian Standard Institution, 1985. IS 1786: 1985,. Indian Standard Specification for High Strength Deformed Steel Bars and Wires for Concrete Reinforcement. New Delhi : Bureau Standard of India.

Indian standard Institution, 1967. IS 2770:1967 Part 1,”Methods of Testing Bond in Reinforced Concrete Pull-out Test”, Part 1. New Delhi : Bureau Standard of India.

Indian Standard Institution, 2009. IS: 10262., 2009. Concrete Mix Proportioning—Guidelines. New Delhi : Bureau Standard of India


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