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Article

Engineering Properties of Hybrid Fibre Reinforced Ternary Blend Geopolymer Concrete

1
Faculty of Civil Engineering, Architecture and Geodesy, University of Split, 21000 Split, Croatia
2
Department of Civil Engineering, National Institute of Technology Calicut, Kerala 673601, India
*
Author to whom correspondence should be addressed.
Academic Editors: Xiangfa Wu and Oksana Zholobko
J. Compos. Sci. 2021, 5(8), 203; https://doi.org/10.3390/jcs5080203
Received: 11 July 2021 / Revised: 30 July 2021 / Accepted: 30 July 2021 / Published: 3 August 2021
(This article belongs to the Special Issue Polymer Composites and Fibers)
The primary aim of this research is to find an alternative for Portland cement using inorganic geopolymers. This study investigated the effect of steel and polypropylene fibres hybridisation on ternary blend geopolymer concrete (TGPC) engineering properties using fly ash, ground granulated blast furnace slag (GGBS) and metakaolin as the source materials. The properties like compressive strength, splitting tensile strength, flexural strength and modulus of elasticity of ternary blend geopolymer concrete. The standard tests were conducted on TGPC with steel fibres, polypropylene fibres and a combination of steel and polypropylene fibres in hybrid form. A total number of 45 specimens were tested and compared to determine each property. The grade of concrete considered was M55. The variables studied were the volume fraction of fibres, viz. steel fibres (0%, 0.5% and 1%) and polypropylene fibres (0%, 0.1%, 0.15%, 0.2% and 0.25%). The experimental results reveal that the addition of fibres in a hybrid form enhances the mechanical properties of TGPC. The increase in the compressive strength was nominal, and a significant improvement was observed in splitting tensile strength, flexural strength, and modulus of elasticity. Also, an attempt to obtain the relation between the different engineering properties was made with different volume fractions of fibre. View Full-Text
Keywords: compressive strength; geopolymer concrete; hybrid fibres; modulus of rupture; ternary blend compressive strength; geopolymer concrete; hybrid fibres; modulus of rupture; ternary blend
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MDPI and ACS Style

Sathish Kumar, V.; Ganesan, N.; Indira, P.V. Engineering Properties of Hybrid Fibre Reinforced Ternary Blend Geopolymer Concrete. J. Compos. Sci. 2021, 5, 203. https://doi.org/10.3390/jcs5080203

AMA Style

Sathish Kumar V, Ganesan N, Indira PV. Engineering Properties of Hybrid Fibre Reinforced Ternary Blend Geopolymer Concrete. Journal of Composites Science. 2021; 5(8):203. https://doi.org/10.3390/jcs5080203

Chicago/Turabian Style

Sathish Kumar, V., N. Ganesan, and P. V. Indira. 2021. "Engineering Properties of Hybrid Fibre Reinforced Ternary Blend Geopolymer Concrete" Journal of Composites Science 5, no. 8: 203. https://doi.org/10.3390/jcs5080203

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