Análisis del módulo de elasticidad estático del hormigón estructural en base a su resistencia a la compresión, fabricado con materiales de las minas Trópico de Capricornio y Santa Isabel, ubicadas en el sector El Barranco cantón Mera en la provincia de Pastaza

Abstract

The present experimental work began with the sampling of the aggregates of the two mines, following the guidelines of INEN 695 and their subsequent reduction to test size according to INEN 2566; Therefore, arid characterization studies were developed to decree their suitability to be used in structural concrete identified in INEN 872; in addition to achieving the actual density of INEN 156 cement. Based on the above, the design of mixtures with their respective dosage was developed for the compression resistances of the 21 and 28 Mpa concrete, with the help of the optimal density method. A single dosage was used because in test trials if they achieved the expected resistances; a total of 84 specimens were then tested according to INEN 3124;with their respective fresh trials such as: INEN 1763 sampling, density, air content and INEN 1579 performance, INEN 1578 settlement; as well as in hardened state obtaining the resistances to INEN 1573 compression at ages 7, 14, 21 and 27 days, making it possible to graph the curves age vs resistance to compression and stress vs deformation of structural concrete. Finally, the static elasticity modulus of concrete was determined according to ASTM C469 and accordingly the constants are proposed for local adaptation depending on the origin of material equation used that is presented in the present experimental work.