Development of ultrasonic pulse velocity for Portland cement concrete at elevated temperature. Albayan Scientific Journal , [S. l.], v. 8, n. 21, p. 207–198, 2026. DOI: 10.37375/bsj.v8i21.4057. Disponível em: https://journal.su.edu.ly/index.php/bayan/article/view/4057. Acesso em: 13 may. 2026.