UTILIZATION OF POLYPROPYLENE IN BITUMINOUS CONCRETE. Journal of Engineering Studies and Research, [S. l.], v. 27, n. 4, p. 7–13, 2021. DOI: 10.29081/jesr.v27i4.293. Disponível em: https://jesr.ub.ro/journal/article/view/293. Acesso em: 13 sep. 2025.