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A platform for research: civil engineering, architecture and urbanism
Valorization of waste perlite powder in geopolymer composites
https://orcid.org/0000-0003-4905-7561
https://orcid.org/0000-0001-7746-6210
https://orcid.org/0000-0001-9349-350X
https://orcid.org/0000-0002-2423-451X
https://orcid.org/0000-0002-8577-2581
Graphical abstract Display Omitted
Highlights Waste perlite powder was valorized in geopolymer composites. TOPSIS-based Taguchi approach was employed to optimize the waste perlite powderslag blended geopolymer composites. Nine performance response criteria were used in the multi-criteria optimization. ANOVA revealed that waste perlite powder content contributed the most to the hardened properties. Microstructure analysis highlighted the formation of C-ASH and CSH gel in the 9 optimum mix.
Abstract The utilization of industrial waste by-products including blast furnace slag (BFS) for geopolymer (GP) production gained considerable attention in recent years. Yet, the development, characterization, and optimization of this kind of material in the presence of waste perlite powder (WPP) has not been investigated. This study assesses the effect of binder content, WPP replacement rate, alkaline activator-to-binder ratio (s/b), and sodium silicate-to-sodium hydroxide ratio (S/H) on the fresh, mechanical, and durability performance of GP mortars blended with BFS and WPP precursors. The optimum proportions determined using the multicriteria Taguchi method were found to contain 600 kg/m3 binder content, 25 % WPP replacement rate, 0.60 s/b, and 2.0 S/H. The reaction kinetics and morphology of precipitated compounds, including the scanning electron microscopy and energy dispersive X-ray analysis, highlighted the rate of activating the calcium aluminosilicate gels and dense microstructure of the optimum mixture. Such data can be of particular interest to researchers and engineers seeking to valorize the use of industrial wastes in GP applications.
Valorization of waste perlite powder in geopolymer composites
https://orcid.org/0000-0003-4905-7561
https://orcid.org/0000-0001-7746-6210
https://orcid.org/0000-0001-9349-350X
https://orcid.org/0000-0002-2423-451X
https://orcid.org/0000-0002-8577-2581
Graphical abstract Display Omitted
Highlights Waste perlite powder was valorized in geopolymer composites. TOPSIS-based Taguchi approach was employed to optimize the waste perlite powderslag blended geopolymer composites. Nine performance response criteria were used in the multi-criteria optimization. ANOVA revealed that waste perlite powder content contributed the most to the hardened properties. Microstructure analysis highlighted the formation of C-ASH and CSH gel in the 9 optimum mix.
Abstract The utilization of industrial waste by-products including blast furnace slag (BFS) for geopolymer (GP) production gained considerable attention in recent years. Yet, the development, characterization, and optimization of this kind of material in the presence of waste perlite powder (WPP) has not been investigated. This study assesses the effect of binder content, WPP replacement rate, alkaline activator-to-binder ratio (s/b), and sodium silicate-to-sodium hydroxide ratio (S/H) on the fresh, mechanical, and durability performance of GP mortars blended with BFS and WPP precursors. The optimum proportions determined using the multicriteria Taguchi method were found to contain 600 kg/m3 binder content, 25 % WPP replacement rate, 0.60 s/b, and 2.0 S/H. The reaction kinetics and morphology of precipitated compounds, including the scanning electron microscopy and energy dispersive X-ray analysis, highlighted the rate of activating the calcium aluminosilicate gels and dense microstructure of the optimum mixture. Such data can be of particular interest to researchers and engineers seeking to valorize the use of industrial wastes in GP applications.
Valorization of waste perlite powder in geopolymer composites
https://orcid.org/0000-0003-4905-7561
https://orcid.org/0000-0001-7746-6210
https://orcid.org/0000-0001-9349-350X
https://orcid.org/0000-0002-2423-451X
https://orcid.org/0000-0002-8577-2581
Graphical abstract Display Omitted
Highlights Waste perlite powder was valorized in geopolymer composites. TOPSIS-based Taguchi approach was employed to optimize the waste perlite powderslag blended geopolymer composites. Nine performance response criteria were used in the multi-criteria optimization. ANOVA revealed that waste perlite powder content contributed the most to the hardened properties. Microstructure analysis highlighted the formation of C-ASH and CSH gel in the 9 optimum mix.
Abstract The utilization of industrial waste by-products including blast furnace slag (BFS) for geopolymer (GP) production gained considerable attention in recent years. Yet, the development, characterization, and optimization of this kind of material in the presence of waste perlite powder (WPP) has not been investigated. This study assesses the effect of binder content, WPP replacement rate, alkaline activator-to-binder ratio (s/b), and sodium silicate-to-sodium hydroxide ratio (S/H) on the fresh, mechanical, and durability performance of GP mortars blended with BFS and WPP precursors. The optimum proportions determined using the multicriteria Taguchi method were found to contain 600 kg/m3 binder content, 25 % WPP replacement rate, 0.60 s/b, and 2.0 S/H. The reaction kinetics and morphology of precipitated compounds, including the scanning electron microscopy and energy dispersive X-ray analysis, highlighted the rate of activating the calcium aluminosilicate gels and dense microstructure of the optimum mixture. Such data can be of particular interest to researchers and engineers seeking to valorize the use of industrial wastes in GP applications.
Valorization of waste perlite powder in geopolymer composites
El-Mir, Abdulkader (author) / Hwalla, Joud (author) / El-Hassan, Hilal (author) / Assaad, Joseph J. (author) / El-Dieb, Amr (author) / Shehab, Ehab (author)
2023-01-20
Article (Journal)
Electronic Resource
English
Valorization of waste perlite powder in geopolymer composites
| Elsevier | 2023
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