@article{vilhena_viegas_souza_macêdo_2023,  title={Influence of free silica in the production of synthetic aggregates from bauxite residue},  volume={69},  ISSN={0366-6913},  url={https://doi.org/10.1590/0366-69132023693913470},  DOI={10.1590/0366-69132023693913470},  number={391},  journal={Cerâmica},  publisher={Associação Brasileira de Cerâmica},  author={Vilhena, M. B. de and Viegas, B. M. and Souza, J. A. S. and Macêdo, E. N.},  year={2023},  month={Jul},  pages={195–200} }