Incorporación de plástico reciclado PET en mezcla asfáltica en caliente modificada
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Fecha
2024
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Universidad Católica Santo Toribio de Mogrovejo
Resumen
El propósito de esta investigación fue diseñar una MAC modificada con PET reciclado para tránsito mediano, evaluando la influencia del Tereftalato de Polietileno según los parámetros de diseño según Marshall para lo cual se elaboraron especímenes con diferentes porcentajes de contenido de asfalto (4, 4.5, 5, 5.5, 6%.) donde los resultados indicaron el óptimo C.A de 5.8%, posteriormente a este fueron incorporados los porcentajes de 1%, 3%, 5% y 7% siendo un total de 105 especímenes cilíndricas, sometidas al ensayo de Marshall para definir sus propiedades físicas y mecánicas. Los resultados indicaron que el porcentaje óptimo de PET en escamas es del 1% en relación al peso total de los agregados mejorando la Estabilidad de la mezcla asfáltica modificada, mientras que el resto de los parámetros de diseño se mantienen dentro de los requerimientos exigidos en las especificaciones técnicas del MTC EG-2013, a excepción del Flujo. Para ello luego de definir los parámetros de diseño se realiza una comparación sobre la influencia del 1% PET para una MAC modificada y una convencional mediante los ensayos de Lottman Modificado, Módulo Resiliente y Cántabro, además de un análisis económico. Los resultados de los ensayos respecto a la MAC modificada fueron un 93.791% de resistencia al daño por humedad inducida, asimismo un módulo resiliente de 4113.6691 Mpa y una pérdida de desgaste de 2.52%.
The purpose of this research was to design a modified MAC with recycled PET for medium traffic, evaluating the influence of Polyethylene Terephthalate according to the design parameters according to Marshall, for which specimens with different percentages of asphalt content (4, 4.5, 5, 5.5, 6%) were elaborated, where the results indicated the optimal C.A of 5.8%, later on, the percentages of 1%, 3%, 5% and 7% were incorporated, making a total of 105 cylindrical specimens, subjected to the Marshall test to define their physical and mechanical properties. The results indicated that the optimal percentage of PET flakes is 1% in relation to the total weight of the aggregates, improving the stability of the modified asphalt mixture, while the rest of the design parameters remain within the requirements demanded in the technical specifications of MTC EG-2013, with the exception of the Flow. To this end, after defining the design parameters, a comparison is made on the influence of 1% PET for a modified MAC and a conventional one using the Modified Lottman, Resilient Modulus and Cantabrian tests, in addition to an economic analysis. The results of the tests regarding the modified MAC were a 93.791% resistance to damage by induced moisture, as well as a resilient modulus of 4113.6691 Mpa and a wear loss of 2.52%.
The purpose of this research was to design a modified MAC with recycled PET for medium traffic, evaluating the influence of Polyethylene Terephthalate according to the design parameters according to Marshall, for which specimens with different percentages of asphalt content (4, 4.5, 5, 5.5, 6%) were elaborated, where the results indicated the optimal C.A of 5.8%, later on, the percentages of 1%, 3%, 5% and 7% were incorporated, making a total of 105 cylindrical specimens, subjected to the Marshall test to define their physical and mechanical properties. The results indicated that the optimal percentage of PET flakes is 1% in relation to the total weight of the aggregates, improving the stability of the modified asphalt mixture, while the rest of the design parameters remain within the requirements demanded in the technical specifications of MTC EG-2013, with the exception of the Flow. To this end, after defining the design parameters, a comparison is made on the influence of 1% PET for a modified MAC and a conventional one using the Modified Lottman, Resilient Modulus and Cantabrian tests, in addition to an economic analysis. The results of the tests regarding the modified MAC were a 93.791% resistance to damage by induced moisture, as well as a resilient modulus of 4113.6691 Mpa and a wear loss of 2.52%.
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Mezcla asfáltica modificada, Tereftalato de polietileno (PET), Pavimentos flexibles, Modified asphalt mixture, Polyethylene terephthalate (PET), Flexible pavements
Citación
A. Y. Angulo Lopez. "Incorporación de plástico reciclado PET en mezcla asfáltica en caliente modificada," tesis de licenciatura, Fac. de Ingienería, Univ. USAT, Chiclayo, Perú, 2024. [En línea]. Disponible en:
