SHEAR STRENGTH OF GRADED STEEL FIBRE REINFORCED SELF COMPACTING CONCRETE

Chandra Mouli Darapaneni Research Scholar, Acharya Nagarjuna University, cm4ssm@gmail.com
T Chandra Sekhar Rao Professor, Bapatla Engineering College,hoshikonni@gmail.com

Abstract

Many of the studies examined so far have observed and confirmed that shear forces will produce tending swift crosswise a member, it is also probable that shear stresses can root sliding along the plane of weakness instead of diagonal tension in the members where shear span to depth ratio is very small. Performance of members subjected to such an interface shear gets enhanced if such a shear plane is reinforced. The study evaluates the effect of graded steel fibres (0.75mm φ – 60mm length, 0.5mmφ – 30mm length and 0.25mmφ – 12.5mm length) shear behaviour of self-compacting concrete under direct shear test. The experiment conducted on push–off specimens reinforced with graded steel fibres in combination with stirrups indicated better performance compared to the specimens without fibres and stirrups.

Keywords:

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: Inclined crack, Diagonal Tension, Interface shear, graded steel fibre, Push – off Test.

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References


References: 1. Ralf Winterberg, “Fibre-reinforced Concrete – A Modern Cost-efficient Construction Material”, ICI Journal,Vol. 11 No. 3,October – December 2010, pp.34-45. 2. Katherine G. Kuder, Nilufer Ozyurt, Edward B.Mu. and Surendra P.Shah, “Rheology of Fiber – Reinforced Cementitious Materials”, Cement and Concrete Research, Vol. 37, 2007, pp.191-199. 3. Narayana R., and Darwish I.Y.S., “use of steel Fibres as Shear Reinforcement”, ACI Structural Journal, Vol. 84 No. 2, March – June 1987, pp.216-227. 4. M.A.Mansur, T. Vinayagam and Kiang- Hwee Tan,” shear Transfer across a Crack in reinforced High Strength Concrete”, Journal of Materials in Civil Engineering (ASCE), April 2008, pp. 294-302. 5. Thomas T.C.Hsu,S.T.Mau and Bin Chen, “Theory of Shear Transfer Strength of Reinforced Concrete”, ACI Structural Journal, Vol. 84, No. 2,March – April 1987,pp.149-160. 6. Chandra Mouli Darapaneni and T Chandrasekhar Rao,”An Experimental Approach for Proportioning Self Compacting Concrete using Compressive Strength Model”, Materials Today Proceedings, https://doi.org/10.1016/j.matpr.2020.10.051. 7. Uttam B. Kalwane, Yuwaraj M. Ghugal and Ajay G. Dahake,” Shear Strength of polymer-modified Steel Fibre Reinforced concrete”, ICJ, Vol.90 No.2, February 2016, pp.54-63. 8. Amir A. Mirsayah and Nemkumar Banthia,” Shear Strength of Steel Fibre- Reinforced Concrete”, ACI Materials Journal, title No. 99-M48, September – October 2002,pp.473-479. 9. J.A. Hofbeck, i.O. Ibrahim and Alan H. Mattock, shear transfer in Reinforced Concrete”, ACI Materials Journal, February 1969. 10. Mariano Valle and Oral Buyukozturk, “behaviour of Fibre Reinforced High Strength Concrete under Direct shear”, ACI Materials Journal, Vol. 90 No. 2, March – April 1993,pp.122-133. 11. R.Narayanan and Y.S. Darwish, “Fibre Concrete Deep Beams in Shear “, ACI Structural Journal, March – April 1988, pp. 141-149.

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