Enhancing the Strength Characteristics of Concrete Using Polypropylene Fiber and Steel Fiber in Combination as Partial Replacement of Fine Aggregates . International Journal of Innovative Research in Engineering & Management, [S. l.], v. 9, n. 2, p. 608–612, 2022. Disponível em: https://acspublisher.com/journals/index.php/ijirem/article/view/11180.. Acesso em: 22 jul. 2024.