Self foaming cellular glass-ceramics were obtained by sintering mixtures of a basalt scoria and soda lime cullet for 15 min at 1050 and 1100 °C. The effect of polyvalent ions (Fe3 +/Fe2 +) on porosity (from 53 to 86 vol.%) and crystallization was studied for different mixtures subjected to different thermal treatments. Due to the range of mechanical strength values (crushing strength from 2 to 50 MPa) and total porosity achieved, these porous glass-ceramics could be applied as building materials, as lightweight aggregate for concrete or as lightweight panels.
Cellular glass–ceramics from a self foaming mixture of glass and basalt scoria
MARANGONI, MAURO;SECCO, MICHELE;PARISATTO, MATTEO;ARTIOLI, GILBERTO;BERNARDO, ENRICO;COLOMBO, PAOLO;
2014
Abstract
Self foaming cellular glass-ceramics were obtained by sintering mixtures of a basalt scoria and soda lime cullet for 15 min at 1050 and 1100 °C. The effect of polyvalent ions (Fe3 +/Fe2 +) on porosity (from 53 to 86 vol.%) and crystallization was studied for different mixtures subjected to different thermal treatments. Due to the range of mechanical strength values (crushing strength from 2 to 50 MPa) and total porosity achieved, these porous glass-ceramics could be applied as building materials, as lightweight aggregate for concrete or as lightweight panels.
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