Investigating the compressive and tensile strength of concrete containing recycled aggregate with polypropylene fibers. Journal of Civil Engineering Researchers, [S. l.], v. 4, n. 4, p. 20–32, 2022. DOI: 10.61186/JCER.4.4.20. Disponível em: http://journals-researchers.com/ojs/index.php/jcer/article/view/7. Acesso em: 18 sep. 2025.