Mechanical Behaviour of Geopolymer Concrete Using Steel Fibers

Abstract:

This investigation inspects the concurrent influence of steel fibers with different materials such as Fly Ash(FA), Silica Fume(SF) and aggregates on the mechanical behaviour of geopolymer concrete (GPC) mixes. A range of 8 to 16 molar NaOH molarities variation was observed in the experimental work. Sodium hydroxide molar (NaOH) and sodium silicate solution (NaOH) were utilised as alkaline activators in proportions of 1, 1.5, and 2 (Na₂SiO₃/NaOH). Steel crimped fibers having aspect ratio of 60 were added in the geopolymer concrete. Geopolymer concrete properties considering type of fly ash, the quantity of fly ash, silica fume, the content of fine aggregate and coarse aggregate, effect of sodium hydroxide concentration, content of sodium silicate solution and inclusion of 0.2% of steel fibers in the geopolymer concrete are analyzed.

• Periodical: Advanced Materials Research (Volume 1178)
• Pages: 159-168
• DOI: https://doi.org/10.4028/p-iTP8HE
• Online since: July 2023
• Authors: Ayyanar Dhanalakshmi*, Masthan Ali Shahul Hameed, Priyanka Kaliraj, Paulraj Velci Shridevi, Kumar Rajendrakani
• Keywords: Geopolymer Concrete, Mechanical Behaviour, Molarity, Silica Fume, Steel Fiber

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