Porous glass-ceramics made from microwave vitrified municipal solid waste incinerator bottom ash

نویسندگان

چکیده

Global warming and depletion of resources have fueled research towards innovative building materials low environmental impact high performance engineering properties. Porous glass-ceramics were synthesized using municipal solid waste incinerator (MSWI) bottom ash (BA) as a starting material. BA was initially milled then vitrified, purification step, by direct microwave heating, characterized glass yield. Highly porous produced intensive mechanical stirring vitrified (VBA) aqueous suspensions under weak alkali activation (1 M NaOH 2.5 NaOH) sinter-crystallization at 800 °C or 900 °C. The obtained ceramics, with up to 70 vol% porosity, exhibited compressive strength well above 1 MPa, being comparable lightweight construction materials, such aerated concrete. High relative permittivity measured for the 10 wt% soda-lime doped VBA material sintered °C, paving way its use potential semiconductor catalyst.

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ژورنال

عنوان ژورنال: Construction and Building Materials

سال: 2021

ISSN: ['1879-0526', '0950-0618']

DOI: https://doi.org/10.1016/j.conbuildmat.2020.121452