REDDY, M. V. . EFFECT OF POLYPROPYLENE AND STEEL FIBRES ON COMPRESSIVE STRENGTH OF CONCRETE. International Journal of Technical Innovation in Modern Engineering & Science, [S. l.], v. 5, n. 4, p. 75–79, 2019. Disponível em: https://ijtimes.com/index.php/ijtimes/article/view/2735. Acesso em: 8 jan. 2025.