Determinación de cantidad óptima de Fibra de Acero para la elaboración de Hormigón de Cemento Portland para losas de Pavimentos Rígidos

Published in: Industry, Innovation, and Infrastructure for Sustainable Cities and Communities: Proceedings of the 17th LACCEI International Multi-Conference for Engineering, Education and Technology
Date of Conference: July 24-26, 2019
Location of Conference: Montego Bay, Jamaica
Authors: Jorge Arroyo Orozco (Universidad de Guayaquil, EC)
(Universidad de Guayaquil)
Full Paper: #363


The concrete applied in rigid paving slabs with modulus of break of 4.5 MPa with addition of steel fibers has obtained an important prestige for its great performance against increasingly demanding requirements of the construction sector. The Reinforced Concrete with Steel Fiber (HRFA), is nothing more than concrete made from hydraulic cements, fine aggregates, coarse aggregates, water, additives and discontinuous discrete fibers (Dramix 80/60), which leads to improvements in behavior physical-mechanical The present work has considered the characteristics of both concrete and fibers, and will be based on the guidelines of the national standards MTOP 2002, NEVI 12, INEN and international ASTM, ACI. Its experimental characterization is based on determining a specific concrete strength (f'c = 350 kg / cm2) with nominal maximum aggregate size 3/4 ""and addition of fiber (Dramix 80/60) in cylindrical and prismatic specimens (beam) , with the objective of checking the physical-mechanical behavior of these elements. For the execution of the sampling, 15 specimens were made with different amounts of addition (5, 10, 20, 30, 40) Kg. Of Dramix 80/60 fibers. For the proposal of the dosage of the concrete, the different design methodologies are analyzed as indicated by the ACI norm, in addition by bibliographic and experimental research, the efficiency in the use of the HRFA ​​will be verified.