Influence of polypropylene fibers on the microstructure and physical and mechanical properties of concrete - José Jhonattan Chapoñan Inoñan; Eloy Delgado Fernández; Sócrates Pedro Muñoz Pérez; Juan Martín Garcia Chumacero; Elver Sánchez Diaz; Edwin Adolfo Diaz Ortiz; Ernesto Dante Rodriguez Laffite; Luigi Italo Villena Zapata; Juan de Dios Malpartida Iturregui (Innovative Infrastructure Solutions, 2024)