Effect of Addition of Polypropylene Fiber on Shear Strength of Fly Ash . International Journal of Innovative Research in Engineering & Management, [S. l.], v. 9, n. 2, p. 343–348, 2022. Disponível em: https://www.journals.acspublisher.com/index.php/ijirem/article/view/11067. Acesso em: 4 aug. 2025.