Effect of Polypropylene Fibres on the Ductility performance of Ternary Blended Concrete Beams

Gayathri, Sala; Suguna, K.; Raghunath, P.N.

:: International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies

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ISSN 2228-9860
eISSN 1906-9642
CODEN: ITJEA8

FEATURE PEER-REVIEWED ARTICLE

Vol.13(7)(2022)

Effect of Polypropylene Fibres on the Ductility performance of Ternary Blended Concrete Beams

Sala Gayathri, K.Suguna, P.N.Raghunath (Dept. of Civil and Structural Engineering, Annamalai University, Annamalainagar, INDIA).

Disciplinary: Civil & Structural Engineering.
➤ FullText

doi: 10.14456/ITJEMAST.2022.134

Keywords: Cracking; Deflection; Ductility; Energy Capacity; Energy Ductility; Fibre Reinforced Concrete; Nano-Alumina; Polypropylene Fibre; Strength; Static Loading; Zeolite.

Abstract
The results of an experimental study conducted to evaluate the material characteristics of ternary blended concrete containing Nano-alumina and Zeolite along with polypropylene fibres to act as micro-reinforcement has been presented in this paper. The optimum combination of nano-alumina and zeolite has been obtained through preliminary studies. The beams were cast with concrete containing 1% Nano-Alumina and 10% Zeolite having PPF fibres in three-volume fractions (0.1, 0.2 and 0.3%). Six beam specimens of overall dimensions 150mm x 250mm x 3000mm were tested for their flexural capacity in a standard loading frame. One beam was made out of control concrete. The remaining five beams were made with ternary blended concrete with and without micro-reinforcement. The beam specimens were examined for their behaviour under static loading conditions. The performance of the beam specimens was assessed in terms of first crack load, deflection at first crack load, yield load, deflection at yield load, ultimate load, deflection at ultimate load, deflection ductility, and deflection ductility ratio, energy ductility and energy ductility ratio. The inclusion of polypropylene fibres increased ultimate crack load by 40%, decreased deflection by 84.17%, decreased crack width by 45.45%, decreased crack spacing by 55%, increased deflection ductility by 34.31%, increased energy ductility by 84.38% and increased energy capacity by 151% compared to control concrete beam.
Paper ID: 13A7H
Cite this article:

Gayathri, S., Suguna, K. , Raghunath, P.N. (2022). Effect of Polypropylene Fibres on the Ductility performance of Ternary Blended Concrete Beams. International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies, 13(7), 13A7H, 1-13. http://TUENGR.COM/V13/13A7H.pdf DOI: 10.14456/ITJEMAST.2022.134

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