Browsing by Author "Mogrovejo Carrasco, Daniel Estuardo"

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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
(Universidad de Cuenca, 2021-04-14) Espinoza Capelo, Erick Danilo; Ochoa Macancela, Marco Ignacio; Cruzat Contreras, Christian Américo; Mogrovejo Carrasco, Daniel Estuardo
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.
Manual práctico de evaluación patológica y control de la condición en estructuras de hormigón mediante ensayos no destructivos y semi-destructivos
(Universidad de Cuenca, 2021-03-29) Ortega Palacios, André Mateo; Vanegas López, Juan José; Mogrovejo Carrasco, Daniel Estuardo
The passing of time produces concrete structure’s deterioration, this added to the lack of standards compliance or inefficient control of construction in Ecuador, endangers the integrity of both the structure and people. Structures suffer damages caused by different pathologies. In order to prevent important damages, and in some cases structural collapse, it is important to perform an accurate evaluation of the constructions. For the purpose of quantifying the damage, buildings are evaluated with tests that provide results that, with a subsequent analysis, establish technical information about the current state of the structure. In this manual, different pathologies and their origins are presented, so that the user has the knowledge and facility to identity them during a visual inspection. Solution trees are presented, they show a way to follow in the choice of tests for correct evaluation. Likewise, the procedures, uses, materials and analysis of results of the most common non-destructive and destructive tests in our region are concisely described. As part of the manual, a detailed example of a real deteriorated structure is presented, which uses all the chapters described in the manual, from the visual inspection that includes a preliminary phase of information and identification of pathologies, to the preparation of a technical report based on the analysis of the results obtained with tests.