These metallurgical and mineral industrial wastes
could not be vitrified, due to their composition; their use
for the production of glass–ceramic tiles, mixed with
vitrified bottom ashes, can be a way to reuse them.
The tiles were prepared in air by a low-cost, low-temperature pressureless sintering process and were morphologically and
mechanically characterized. The sintered materials were found to be good candidates for building applications (tiles, bricks, etc.),
i.e. they showed bending strengths up to about 60 MPa and Young modulus up to about 53 GPa.