About the strength characteristics of fiber-fiber-reinforced concrete fox polfiber M12 BASF companiesIrkin Mukhamataliyev, Fazliddin Ruzmetov, Azamat Khudoyorov and Sherbek UzakovE3S Web of Conf., 452 (2023) 06026DOI: https://doi.org/10.1051/e3sconf/202345206026