Caracterización de mezclas semidensas con agregados de la región de Tunja

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Autores

Carlos Hernando Higuera Sandoval
Jeiny Elizabeth Aranda-Lòpez
José Alberto Prieto-Hernández

Abstract

Esta investigación determinó la viabilidad de las Mezclas Semidensas en Caliente, o Gap Graded, para el uso en vías de tránsito medio, como una alternativa a la capa asfáltica y a la base asfáltica. Para elaborar las mezclas se utilizaron agregados de dos canteras de la Provincia Centro del departamento de Boyacá: la recebera Piedra Gorda y la cantera La Calera, junto con el ligante bituminoso de penetración 60/70, proveniente de IncoAsfaltos S.A., empresa localizada en Mosquera (Cundinamarca). El diseño de las mezclas se realizó por medio de las metodologías Marshall y Ramcodes. La determinación de los módulos dinámicos de las mezclas se llevó a cabo por medio del equipo Nottingham Asphalt Tester (NAT). Los resultados mostraron valores de módulos mayores para las mezclas realizadas con el agregado de Piedra Gorda. Se diseñó la estructura de pavimento con agregados de La Calera, por cumplir con todas las especificaciones.

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