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Please use this identifier to cite or link to this item:
https://hdl.handle.net/20.500.11839/6950
Title: | Evaluación comparativa del efecto de aditivos reductores, manejadores y su mezcla en morteros |
Other Titles: | Comparative evaluation of the effect of admixtures reducers, handlers and its mixture in mortars |
Authors: | Moreno Pachon, Ana Maria |
Thesis advisor: | Moreno Erazo, Angela Ximena Mesa Espitia, Sandra Liliana |
License type: | Atribución – No comercial |
Keywords: | Aditivo manejador;Aditivo reductor;Fluidez;Handler additive;Reducing additive;Fluency;Tesis y disertaciones académicas |
Issue Date: | 8-Aug-2018 |
Publisher: | Fundación Universidad de América |
Resumen: | La variación en la composición química del cemento no permite emplear un único aditivo de forma estándar, por consiguiente el propósito de este trabajo de grado fue evaluar el desempeño de aditivos reductores (AR3, AR7 y AR40), manejadores (AM6, AM67, AM65, AM65H y AM80) y compararlo con mezclas formuladas en diferentes concentraciones de los aditivos (AR40, AM67 y AM65H) para un total de 30 pruebas puesto que se incluyeron dos cementos de fabricantes nacionales denominados como P y K. Inicialmente se realizó la caracterización de los componentes del mortero, en el cemento se efectuaron pruebas experimentales para determinar su densidad y fluidez, y técnicas como la Difracción de Rayos X y la Fluorescencia de Rayos X para conocer su composición química. Los agregados fueron caracterizados a partir de su densidad, absorción y granulometría y por último se obtuvieron propiedades de los aditivos como el porcentaje de sólidos, viscosidad, densidad y color. Después de la caracterización se definió la relación agua cemento para cada tipo de aditivo (0.29 en reductores, 0.33 con manejadores y mezclas) y la dosis a emplear de aditivo (0.17%) en todos los morteros a partir del estudio de la prueba de culebrilla con el aditivo referencia AR7. |
Abstract: | "The variation in the chemical composition of the cement does not allow the use of a single admixture in a standard way, therefore the purpose of this degree work was to evaluate the performance of reducing admixtures (AR3, AR7 and AR40), handlers (AM6, AM67, AM65, AM65H and AM80) and compare it with mixtures formulated in different concentrations of the admixtures (AR40, AM67 and AM65H) for a total of 30 tests since two cements of national manufacturers named P and K were included. Initially the characterization of the components of the mortar, in the cement experimental tests were carried out to determine its density and fluidity, and techniques such as X-ray diffraction and X-ray fluorescence to know its chemical composition. The aggregates were characterized from their density, absorption and granulometry and finally properties of the admixtures were obtained as the percentage of solids, viscosity, density and color. After the characterization the water cement ratio was defined for each type of additive (0.29 in reducers, 0.33 with handlers and mixtures) and the admixture dose to be used (0.17%) in all mortars from the study of the shingles test with the admixture reference AR7. |
URI: | http://hdl.handle.net/20.500.11839/6950 |
Citation: | APA 6th - Moreno Pachon, A. M. (2018) Evaluación comparativa del efecto de aditivos reductores, manejadores y su mezcla en morteros (Trabajo de grado). Fundación Universidad de América. Retrieved from http://hdl.handle.net/20.500.11839/6950 |
Appears in Collections: | Trabajos de grado - Ingeniería Química |
Files in This Item:
File | Description | Size | Format | |
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6122874-2018-2-IQ.pdf | 2.82 MB | Adobe PDF | View/Open |