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Rincon Romero, Acacio - Giacomello, Giovanni - Pasetto, Marco - Bernardo , Enrico (2017) Novel "inorganic gel casting" process for the manufacturing of glass foams. [Articolo di periodico (a stampa)]

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Abstract (italiano o inglese)

A new technique for the production of glass foams was developed, based on alkali activation and gel casting. The alkali activation of soda-lime waste glass powders allowed for the obtainment of well-dispersed concentrated suspensions, undergoing gelification by treatment at low temperature (75 °C). An extensive direct foaming was achieved by mechanical stirring of partially gelified suspensions, comprising also a surfactant. The suspensions were carefully studied in terms of rheological behavior, so that the final microstructure (total amount of porosity, cell size) can be directly correlated with the degree of gelification. A sintering treatment, at 700-800 °C, was finally applied to stabilize the foams, in terms of leaching of alkaline ions. Considering the high overall porosity (88-93%), the newly obtained foams exhibited a remarkable compressive strength, in the range of 1.7-4.8 MPa.


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Tipo di EPrint:Articolo di periodico (a stampa)
Anno di Pubblicazione:Maggio 2017
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 Civile, Edile e Ambientale
Dipartimenti > Dipartimento di Ingegneria Industriale
Codice ID:11608
Depositato il:07 Gen 2019 13:18
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