ET.AL, Kumar Saurabh. The activities of Geopolymer aggregate and Fly ash with different Grades of concrete M25, M30, & M40. Turkish Journal of Computer and Mathematics Education (TURCOMAT), [S. l.], v. 12, n. 3, p. 3468–3475, 2021. Disponível em: https://www.turcomat.org/index.php/turkbilmat/article/view/1618. Acesso em: 14 oct. 2025.