Evaluación de la resistencia mecánica bajo carga monotónica y la rigidez bajo carga cíclica de una mezcla asfáltica tibia fabricada con sustituciones parciales de agregado pétreo por escoria de alto horno

Abstract

In the present work of degree was conducted a pilot phase that evaluated the response under load monotonic (Marshall Islands and indirect tensile tests) and dynamic (module resilient and permanent deformation) of an asphalt mixture warm recycled made from the incorporation of an additive called HUSIL to asphalt and the partial replacement of the coarse and fine fractions of a natural stone added by a blast furnace slag from Acerías Paz del Río S.A. for the manufacture of mixtures used asphalt CA 60-70 and how particle size of reference, used a mixture of asphalt concrete type MDC-25 (widely used for the construction of layers of base asphalt pavements). Based on the results obtained, it was concluded that the best performance is achieved when the temperature decreases in 30°C is used, the additive HUSIL and replaces the coarse fraction of the aggregate stone by BFS in 12.5% (Replacement of the sieve of ¾"). Under this condition, the mixture is experiencing a significant increase in the stiffness (under load monotonic, and dynamic), in resistance to moisture damage and in the resistance to permanent deformation with respect to the control.