ALUMINO-SILICATE WASTES USED FOR MAKING CELLULAR GRAVEL BY NON-CONVENTIONAL DIRECT MICROWAVE HEATING METHOD. Nonconventional Technologies Review, [S. l.], v. 27, n. 3, 2023. Disponível em: https://revtn.ro/index.php/revtn/article/view/426. Acesso em: 17 apr. 2026.