Diseño vial del tramo Pedro Montero-Buena Fe estabilizando materiales granulares con emulsión asfáltica

Abstract

This project addresses the comprehensive rehabilitation of the Pedro J. Montero – Buena Fe Road through the design of a pavement structure stabilized with asphalt emulsion. The main objective is to propose a sustainable technical solution that optimizes the use of local resources and ensures rural connectivity. For the development, laboratory tests were carried out where the material was characterized in situ as well-graded gravel with silt (GW-GM) and the modified Marshall method was applied to define the mixture dosage, complemented by structural dimensioning under AASHTO 93 standards. The results determined that the incorporation of 6% asphalt emulsion achieved a dry stability of 4106.94 lb and a retained strength of 92%. In addition, the proposed design of a 15 cm stabilized base provided a Structural Number of 3.41 with a reference budget of $251,272.13. Finally, it was concluded that this alternative is technically and economically viable, as it significantly reduces the carbon footprint and transportation costs of aggregates, validating an efficient circular economy model for provincial road infrastructure. Keywords: Asphalt Emulsion, Flexible Pavement, Road Rehabilitation, Marshall Method, Sustainability.