Changes in the dynamic properties of an asphalt mixture by energy of compaction and variation in the granulometry

This study has a general objective which is to establish the influence of changes of density and aggregate gradation on the changes of dynamic properties of an asphalt mix. In the present research, two types of asphalt mixture were used: mix (0/10) and mix (0/20). They both were hammered (50, 65, 75...

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Detalles Bibliográficos
Autores Principales: Reyes Ortiz, Oscar Javier, Camacho Tauta, Javier Fernando, Nieto Leal, Andrés
Formato: Artículo (Article)
Lenguaje:Español (Spanish)
Publicado: Universidad Militar Nueva Granada 2016
Materias:
Acceso en línea:http://hdl.handle.net/10654/33208
Descripción
Sumario:This study has a general objective which is to establish the influence of changes of density and aggregate gradation on the changes of dynamic properties of an asphalt mix. In the present research, two types of asphalt mixture were used: mix (0/10) and mix (0/20). They both were hammered (50, 65, 75, 85, 95 y 105 times) to change their density, since it depends on the compacting energy in fabric process. The first step in this research was to characterize the materials that composed the asphalt mix: granular material and asphalt. After that the Marshall test was applied to determine the optimum percentage of asphalt, which wa obtained from graphics of stability, flow, and unit weight or density. Finally, dynamic modules and rutting tests were applied to be able to conclude the optimum compacting energy and aggregate gradation that an asphalt mix should have and, thus, to optimize the design and operation of flexible pavement structures.