Evaluación de mezclas de hormigón simple fabricado con arenas de relave minero de la planta de tratamiento y beneficio “Matamoros”, del cantón Portovelo, provincia de El Oro

Abstract

Concrete is very important for the society's development, becoming one of the indicators of economic growth in countries. Being such an important material, improving its properties turns out to be a common concern today; this is one of the main reasons why people try reducing its cost and the impact that manufacture and extraction of the concrete constituents has on the environment. Giving better benefits that provide opportunities to meet the increasingly high-quality standards within the construction industry. The present thesis develops an investigation in which it is proposed to determine the influence of the use of waste material from the gold industry in the Zaruma-Portovelo mining district and the variation that this generates within the physical-mechanical properties of concrete. As a consequence, it is established that workability increases in mixtures with variation in the amount of cement and its compression strength is maintained; however, there is evidence of an increase in the samples with variation of sand. Abrasion resistance is affected in all samples and according to the quality classification based on the pulse speed test, also all samples show good performance. On the other hand, in the resistivity test, the behavior of all the samples before the penetration of chloride ions is moderate and high.