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Toniolo, Nicoletta and Rincon Romero, Acacio and Roether, J.A. and Ercole, Piero and Bernardo, Enrico and Boccaccini, Aldo R. (2018) Extensive reuse of soda-lime waste glass in fly ash-based geopolymers. [Journal papers (printed)]

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Abstract (italian or english)

The possibility of extensive incorporation of soda-lime waste glass in the synthesis of fly ash-based geopolymers was investigated. Using waste glass as silica supplier avoids the use of water glass solution as chemical activator. The influence of the addition of waste glass on the microstructure and strength of fly ash-based geopolymers was studied through microstructural and mechanical characterization. Leaching analyses were also carried out. The samples were developed changing the SiO2/Al2O3 molar ratio and the molarity of the sodium hydroxide solution used as alkaline activator. The results suggest that increasing the amount of waste glass as well as increasing the molarity of the solution lead to the formation of zeolite crystalline phases and an improvement of the mechanical strength. Leaching results confirmed that the new geopolymers have the capability to immobilize heavy metal ions.

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EPrint type:Journal papers (printed)
Anno di Pubblicazione:10 November 2018
Settori scientifico-disciplinari MIUR:Area 09 - Ingegneria industriale e dell'informazione > ING-IND/22 Scienza e tecnologia dei materiali
Struttura di riferimento:Dipartimenti > Dipartimento di Ingegneria Industriale
Codice ID:11618
Depositato il:07 Jan 2019 13:08
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