In this work was investigated the feasibility to use Waste Electrical and Electronic Equipment (WEEE) glasses in construction sector as secondary raw material. WEEE glasses were used in different percentages as a function of the product obtained: 30-40wt% for glaze formulations, about 40wt% for glass-ceramics and 5wt% in brick bodies. The laboratory and industrial scale up results demonstrated that it is possible to produce a glazed tile with a glaze containing fluorescent lamps glass instead of commercial ceramic frits. Glass-ceramics composed by nepheline ((Na,K) AlSiO 4), akermanite (Ca 2Mg(Si 2O 7)) and celsian (BaAl 2Si 2O 8) were obtained at low temperature and short time (T = 900°C and t = 60 min) with panel glass as component. Besides, small amounts of panel glass were added in brick bodies because this glass is suitable as fluxing agent only at high temperatures; at brick manufacturing temperatures (around 1000°C), the glass viscosity does not enough contribute to the sintering process.
End of life-materials: WEEE glass recovery in construction sector / Andreola, F.; Barbieri, L.; Lancellotti, I.. - (2010), pp. 429-436. (Intervento presentato al convegno 2nd International Conference on Sustainable Construction Materials and Technologies tenutosi a Ancona, ita nel 2010).
End of life-materials: WEEE glass recovery in construction sector
Andreola F.;Barbieri L.;Lancellotti I.
2010
Abstract
In this work was investigated the feasibility to use Waste Electrical and Electronic Equipment (WEEE) glasses in construction sector as secondary raw material. WEEE glasses were used in different percentages as a function of the product obtained: 30-40wt% for glaze formulations, about 40wt% for glass-ceramics and 5wt% in brick bodies. The laboratory and industrial scale up results demonstrated that it is possible to produce a glazed tile with a glaze containing fluorescent lamps glass instead of commercial ceramic frits. Glass-ceramics composed by nepheline ((Na,K) AlSiO 4), akermanite (Ca 2Mg(Si 2O 7)) and celsian (BaAl 2Si 2O 8) were obtained at low temperature and short time (T = 900°C and t = 60 min) with panel glass as component. Besides, small amounts of panel glass were added in brick bodies because this glass is suitable as fluxing agent only at high temperatures; at brick manufacturing temperatures (around 1000°C), the glass viscosity does not enough contribute to the sintering process.
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