An experimental study was conducted to examine the mechanical strengths of concretes with straight high-strength knurled polypropylene macrofibers. Incidences of concrete mechanical strengths were determined for three different fiber dosages and lengths. In addition, compressive, indirect-splitting-test tensile, and flexural strengths were determined through testing. The results showed no statistically significant correlation between the volume and length of fibers with the compressive strength of polypropylene fiber-reinforced concrete (PPFRC). However, there was a statistically significant correlation between the split tensile strength, the volume, and the length of the fibers when the volume was greater than 0.80%, and the length of the fibers was greater than 50 mm. Furthermore, the modulus of rupture increased when the volume of fibers was greater than 0.80% and the length of the fi...

Segundo puesto del concurso IV Expo Investigación CIC "Resiliencia, sostenibilidad e innovación’’, llevado a cabo el 02 de diciembre del 2020. Trabajo realizado en la asignatura Mecánica de Suelos II, asesoría a cargo del profesor Manuel Madrid Argomedo, encargado de la asignatura.