La resistencia a la compresión del hormigón y su influencia en el módulo de elasticidad estático en el cantón Tena, provincia de Napo

Abstract

The present report consists of determining a formula for the calculation of the static modulus of elasticity based on the compressive strength of the concrete obtained with the use of aggregates acquired in quarries located in the Province of Napo, Canton Tena. For this purpose, tests were carried out to determine the properties and characteristics of the aggregates from the "Planta de Asfalto GAD Municipal de Tena" and the "Venecia 38" mine. Once the necessary data had been obtained, the Optimum Density method was applied to design the concrete mix to meet the specified strength of 24 MPa at the age of 28 days and subsequently concrete specimens of 10 cm diameter x 20 cm high were made using type IP hydraulic cement, without additives. By means of simple compression tests performed at 28 days of concrete maturity and in accordance with ASTM C469, the Moduli of Elasticity corresponding to the specimens previously selected for the test were obtained and a comparison was made with the Moduli of Elasticity calculated with the equations established by ACI 318 and ACI 363. Finally, practical equations are proposed that allow the calculation of the static modulus of elasticity of concrete as a function of its strength for concrete made with aggregates from the "Planta de Asfalto GAD Municipal de Tena" and the "Venecia 38" mine.