Influencia de fibras de yute como parte de los agregados del hormigón para la determinación del módulo elástico

Abstract

Through this work, physical-mechanical properties of aggregates from quarries located in the Pichincha province, Pifo and San Antonio parishes are determined. Dosages are proposed to achieve concrete compressive strength of 21 MPa and 28 MPa, adding jute fiber in 3 percentages (0.0%, 0.2% and 0.4%) with respect to the weight of the mixture. Jute fiber in its natural state from the province of Cotopaxi. This research obtains the modulus of elasticity of concrete based on results of compressive strength at 28 days of concrete age, using expressions proposed in ACI 318, the NEC and a study done in the country. Tests were carried out to determine the modulus of elasticity based on the methodology of ASTM 469, where strain gauges were used to measure the deformations of the specimens, in order to compare the results and to know that the equation proposed in the NEC presents values lower than the experimental values in a range between 4 and 25%.