Bibliographic citations
Mendo, A., Rojas, C. (2017). Influencia de las fibras de polipropileno en la microfisuración por fatiga del concreto fabricado con relación agua-cemento 0.40 y 0.50 y cemento Portland MS [Tesis, Universidad Privada Antenor Orrego - UPAO]. https://hdl.handle.net/20.500.12759/3565
Mendo, A., Rojas, C. Influencia de las fibras de polipropileno en la microfisuración por fatiga del concreto fabricado con relación agua-cemento 0.40 y 0.50 y cemento Portland MS [Tesis]. : Universidad Privada Antenor Orrego - UPAO; 2017. https://hdl.handle.net/20.500.12759/3565
@misc{renati/376958,
title = "Influencia de las fibras de polipropileno en la microfisuración por fatiga del concreto fabricado con relación agua-cemento 0.40 y 0.50 y cemento Portland MS",
author = "Rojas Cueva, Cristian Jonathan",
publisher = "Universidad Privada Antenor Orrego - UPAO",
year = "2017"
}
The present research project entitled: “INFLUENCE OF POLYPROPYLENE FIBERS IN THE FATIGUE MICRO FISURATION OF CONCRETE MANUFACTURED WITH WATER-CEMENT RELATIONSHIP 0.40 AND 0.50 AND PORTLAND MS CEMENT"", was carried out based on laboratory tests, using one unregulated artisanal loading machine, a deformimeter with precision 0.0001"", a 2 ton hydraulic jack and the development of four rectangular simple concrete beams, which were subjected to the application of repetitive loads generating fatigue in the material. The above mentioned laboratory test was developed by subjecting the rectangular simple concrete beams to a fatigue process, which was controlled in order that the tensile stresses generated by the applied load from a hydraulic jack do not exceed the maximum flexural tensile strength, and avoid exceeding the elastic range. This research explains how affects the application of a repeated load to a concrete element, and, the influence that the polypropylene fibers have to control the microcracking of the material. It is emphasized that the application of 1000 gr/m3 of polypropylene fibers in the preparation of concrete with water-cement ratio 0.40 increases the number of cycles by 32% compared to a concrete without polypropylene fibres and makes the concrete fatigue strength increase; and for a concrete with water-cement ratio 0.50 at 28 days of curing, the number of cycles until cracking increased by 29.40% compared to the same concrete without polypropylene fibres.
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