MAIN TYPES OF ARTIFICIAL RAW MATERIALS USED IN THE PRODUCTION OF CONSTRUCTION MATERIALS. Spectrum Journal of Innovation, Reforms and Development, [S. l.], v. 50, p. 58–60, 2026. Disponível em: https://sjird.journalspark.org/index.php/sjird/article/view/1336. Acesso em: 14 jun. 2026.