首页|Investigating the influence of nano-silica incorporation on mechanical characteristics of steel fiber-reinforced concrete to mitigate solid waste and environmental contamination
Investigating the influence of nano-silica incorporation on mechanical characteristics of steel fiber-reinforced concrete to mitigate solid waste and environmental contamination
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NETL
NSTL
Taylor & Francis
Using nano-silica and steel micro-fibers in high-strength concrete has gainedattention due to their potential to reduce solid waste and environmentalpollution. In this study, the impact of nano-silica inclusions on the mechanicalproperties of steel fiber-reinforced concrete, referred to as “Micro-Concrete Reinforced with Steel Fibers Embedding Nano-Silica” (MRSFEN),was assessed. MRSFEN mixtures were prepared with 0%, 1%, and 2% nanosilicacontent and 0.5%, 1%, 2%, and 3% steel micro-fiber content. Testsshowed a 17%-32% increase in compressive strength and a 12%-29%increase in tensile strength by adding 1%-2% nano-silica across all fibercontents. Incorporating 1%-3% steel micro-fibers resulted in 18–25 MPahigher compressive strength, 6–12 MPa higher tensile strength, and 10%-35% higher flexural strength relative to non-fiber concrete. However, workabilityreduced by 15%-30% with 3% fiber content. The combined use ofnano-silica and steel micro-fibers enhanced strength and ductility, with theoptimum composition identified as 1% nano-silica with 2% steel micro-fibersbased on the mechanical performance. The results indicate the potential oftailored MRSFEN mixtures to improve the mechanical properties of steelfiber-reinforced concrete, with benefits in reducing solid waste and mitigatingenvironmental contamination.
NETL
NSTL
Taylor & Francis
