INCREASED PROPERTIES OF VITRIFIED GLASS-CERAMICS FLY ASH WITH THE ADDITION OF 30 WT.% ALUMINUM SILICATE AND SINTERING TEMPERATURE. Journal of Technology and Vocational Studies, [S. l.], v. 3, n. 1, p. 116–121, 2025. DOI: 10.21063/jtv.2025.3.1.116-121. Disponível em: https://jtv.itp.ac.id/index.php/jtv/article/view/198. Acesso em: 4 oct. 2025.