Optimization of the composition of fine-grained concrete reinforced with polypropylene fiber. Международный научный журнал «Инженер», [S. l.], v. 1, n. 1, p. 14–17, 2026. DOI: 10.56143/eh073782. Disponível em: https://engineer.tstu.uz/index.php/engineer-tstu/article/view/461. Acesso em: 10 aug. 2026.