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A platform for research: civil engineering, architecture and urbanism
Effect of Graphene Oxide on Strength and Durability of Activated Slag Mortar
The application of nanomaterials in alkali-activated composites is gaining popularity over the decade. The thermally cured alkali-activated concrete is a potential replacement for traditional Portland cement-based concrete in precast industries. The present study is focused on the strength and durability performance of graphene oxide (GO) based ambient-cured alkali-activated slag (AAS) mortar at different percentages of replacement of slag. The performance of ambient temperature cured ASS with different percentages of GO is compared with the thermally cured alkali-activated mortar at the activator fluid concentration of 8 molar and conventional cement mortar. The compressive and flexural strengths of ambient-cured alkali-activated slag mortar increased by 22% and 15% respectively, compared to the other mixes up to 0.06% GO addition. This is due to accelerated alkali activation of slag owing to the higher specific surface and amorphicity of these nanoparticles, as confirmed by microanalyses. Additionally, the resistance to chloride-ion penetration is also enhanced due to this GO addition, making this a viable option for usage in aggressive environments.
Effect of Graphene Oxide on Strength and Durability of Activated Slag Mortar
The application of nanomaterials in alkali-activated composites is gaining popularity over the decade. The thermally cured alkali-activated concrete is a potential replacement for traditional Portland cement-based concrete in precast industries. The present study is focused on the strength and durability performance of graphene oxide (GO) based ambient-cured alkali-activated slag (AAS) mortar at different percentages of replacement of slag. The performance of ambient temperature cured ASS with different percentages of GO is compared with the thermally cured alkali-activated mortar at the activator fluid concentration of 8 molar and conventional cement mortar. The compressive and flexural strengths of ambient-cured alkali-activated slag mortar increased by 22% and 15% respectively, compared to the other mixes up to 0.06% GO addition. This is due to accelerated alkali activation of slag owing to the higher specific surface and amorphicity of these nanoparticles, as confirmed by microanalyses. Additionally, the resistance to chloride-ion penetration is also enhanced due to this GO addition, making this a viable option for usage in aggressive environments.
Effect of Graphene Oxide on Strength and Durability of Activated Slag Mortar
Structural Integrity
Fonseca de Oliveira Correia, José António (editor) / Choudhury, Satyabrata (editor) / Dutta, Subhrajit (editor) / Adak, Dibyendu (author) / Srinivas, Dodda (author) / Ramagiri, Kruthi Kiran (author) / Kar, Arkamitra (author) / Dutta, Subhrajit (author)
International Conference on Advances in Structural Mechanics and Applications ; 2021 ; Silchar, India
Advances in Structural Mechanics and Applications ; Chapter: 36 ; 525-534
Structural Integrity ; 19
2022-06-08
10 pages
Article/Chapter (Book)
Electronic Resource
English
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