Polígono de vacíos para el control de las mezclas asfálticas producidas por la ECOING 25
Fecha
2019-06-23
Autores
Paz García, Gloria Yanely
González Cortés, Felipe Aurelio
Título de la revista
ISSN de la revista
Título del volumen
Editor
Resumen
Recientemente, los tópicos de diseño de mezclas asfálticas tales como el betún asfáltico, los
agregados, y las propiedades de la mezcla han recibido la máxima atención por los
investigadores y especialistas de esta materia. Sin embargo, el control de la compactación en
campo ha permanecido sin cambios; el criterio de control se basa en garantizar un mínimo
nivel de densidad comparada con una referencia de laboratorio.
El procedimiento de diseño de mezclas resulta en el establecimiento de un contenido de
asfalto óptimo (CAop), también llamado “fórmula de trabajo”, con la que se produce en
planta, y sirve como parámetro de referencia y de control. Los rangos típicos de variación
aceptables para CAop han sido establecidos en ±0.30% y ±0.45%.
El criterio para el control de la calidad de la compactación es fijar el nivel de densidad
mínimo permitido a un porcentaje de la densidad de laboratorio (97%). Sin embargo, los criterios de diseño y de control de campo explicados arriba están
divorciados entre sí, y esta incoherencia podría conducir a aceptar estados en la mezcla
compactada en campo que no cumplen con el diseño de mezclas, lo cual podría disminuir la vida útil de la mezcla compactada y podría provocar su falla. La metodología para el autocontrol de las mezclas producidas en la ECOING 25 pretende eliminar las diferencias entre los criterios de diseño y control de las mezclas asfálticas con el uso del polígono de vacíos.
Recently, the design topics of asphalt mixtures, such as asphalt binder, aggregates and mix properties of the mixture, have received the utmost attention from interested parties and specialists in this thematic. However, the compaction control in the work has remained the same, without change. The control criterion is based on guaranteeing a minimum density level compared to a laboratory reference. The mixing design procedure results in the establishment of optimum asphalt content (CAop), also called "Job-formula", with which it is produced in the plant and serves as a control reference parameter. Typical values of variation acceptable for CAop have been established at ± 0.30% and ± 0.45%.The criterion for quality control of compaction is to set a minimum density level allowed as a percentage of the laboratory density (97%). However, the design and control works criteria explained above are separate from each other, and this inconsistency could lead to a case of compacted mixtures in the works that does not complying with the mixtures design, which may decrease asphalt pavement life, or further cause its failure. The methodology for the control by ECOING 25 of the mixtures produced in the aims to eliminate the differences between the criteria of design and control of the asphalt mixtures by applying the polyvoids.
Recently, the design topics of asphalt mixtures, such as asphalt binder, aggregates and mix properties of the mixture, have received the utmost attention from interested parties and specialists in this thematic. However, the compaction control in the work has remained the same, without change. The control criterion is based on guaranteeing a minimum density level compared to a laboratory reference. The mixing design procedure results in the establishment of optimum asphalt content (CAop), also called "Job-formula", with which it is produced in the plant and serves as a control reference parameter. Typical values of variation acceptable for CAop have been established at ± 0.30% and ± 0.45%.The criterion for quality control of compaction is to set a minimum density level allowed as a percentage of the laboratory density (97%). However, the design and control works criteria explained above are separate from each other, and this inconsistency could lead to a case of compacted mixtures in the works that does not complying with the mixtures design, which may decrease asphalt pavement life, or further cause its failure. The methodology for the control by ECOING 25 of the mixtures produced in the aims to eliminate the differences between the criteria of design and control of the asphalt mixtures by applying the polyvoids.
Descripción
Palabras clave
Polígono de vacíos, Mezclas asfálticas, Asphalt mixtures