Effect of binary blended of Portland cement and fly ash to the Strength and Surface Absorption of Concrete. Journal of Pure & Applied Sciences , [S. l.], v. 20, n. 4, 2022. DOI: 10.51984/jopas.v20i4.1711. Disponível em: https://www.sebhau.edu.ly/journal/jopas/article/view/1711. Acesso em: 30 jan. 2026.