Publication: ANÁLISIS DE PERMEABILIDAD SEGÚN VARIACIÓN DE PORCENTAJES DE VACÍOS EN MEZCLAS ASFÁLTICAS EN CALIENTE
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Date
2018
Authors
SEPÚLVEDA MARTÍNEZ, GERARDO ENOC
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Abstract
El año 2016 el Laboratorio de Ensaye de Materiales y Control de Obras (LEMCO) adquirió el Permeámetro de Carga Variable modelo HM-9111 fabricado por la marca estadounidense Humboldt, con el fin de informar el valor de la permeabilidad de una mezcla asfáltica diseñada por el laboratorio. Actualmente, la permeabilidad es medida solo con fines informativos y no se tienen valores de comparación en el país. Esto hace necesario plantear una búsqueda, profundizando el estudio de la propiedad.La presente memoria de título tuvo como objetivo principal aplicar de manera experimental la metodología para la medición de permeabilidad según la norma ASTMPS129-01, en mezclas asfálticas en caliente compactadas con SGC (Superpave Gyratory Compactor). Además, se midió el coeficiente de permeabilidad en tres mezclas asfálticas en caliente, cada una con distinto diseño Marshall, a diferentes niveles de vacíos, en un rango de 5 a 7 [%].Para lograr los objetivos se estableció, según norma ASTM PS129-01, un procedimiento para la medición del coeficiente de permeabilidad que puede ser usado tanto para testigos extraídos de terreno como para mezclas fabricadas en laboratorio.A través de este estudio se determinó que, en un plano general, la permeabilidad varía según el porcentaje de vacíos: a mayor nivel de vacíos más permeables son las muestras. Sin embargo, existen casos particulares en los que se plantea la incidencia de otras variables.
In 2016, Materials Testing and Control Laboratory. (LEMCO) acquired the Flexible Wall Permeameter model HM-9111 manufactured by the American Humboldt Company, in order to inform the permeability value of a mixture asphalt designed by the laboratory. At the present time the permeability is measured only for informational purposes and there are no comparison patterns. This makes it necessary to propose a search deepening the study of the property.The main objective of this thesis was to experimentally apply the methodology for measuring permeability according to ASTMPS129-01, in hot mix asphalts compacted with SGC (Superpave Gyratory Compactor). In addition to the above, the permeability coefficient was analyzed in three hot mix asphalts, each with a different Marshall design, at different void levels, in a range of 5 to 7 [%].To achieve the objectives, according to ASTM PS129-01, a procedure was established for the measurement of the permeability coefficient that can be used both for laboratory compacted specimens and for field cores of compacted bituminous paving mixtures.Through this study, it was determined, at a general aspect, that the permeability varies according to the percentage of voids: the higher the level of voids, the more permeable the samples are. However, there are particular cases in which the incidence of other variables is considered.
In 2016, Materials Testing and Control Laboratory. (LEMCO) acquired the Flexible Wall Permeameter model HM-9111 manufactured by the American Humboldt Company, in order to inform the permeability value of a mixture asphalt designed by the laboratory. At the present time the permeability is measured only for informational purposes and there are no comparison patterns. This makes it necessary to propose a search deepening the study of the property.The main objective of this thesis was to experimentally apply the methodology for measuring permeability according to ASTMPS129-01, in hot mix asphalts compacted with SGC (Superpave Gyratory Compactor). In addition to the above, the permeability coefficient was analyzed in three hot mix asphalts, each with a different Marshall design, at different void levels, in a range of 5 to 7 [%].To achieve the objectives, according to ASTM PS129-01, a procedure was established for the measurement of the permeability coefficient that can be used both for laboratory compacted specimens and for field cores of compacted bituminous paving mixtures.Through this study, it was determined, at a general aspect, that the permeability varies according to the percentage of voids: the higher the level of voids, the more permeable the samples are. However, there are particular cases in which the incidence of other variables is considered.
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Catalogado desde la version PDF de la tesis.
Keywords
MEZCLAS ASFALTICAS , PERMEABILIDAD , PORCENTAJE DE VACIOS