Evaluación estructural y diseño de la rehabilitación del pavimento asfáltico, empleando una base asfáltica reciclada con cemento, en la carretera Macas – Sinaí, ubicada en la provincia de Morona Santiago

Abstract

Roads are tangible road heritage and must be given national importance, always preserving them in useful and safe conditions, which is why it is important to propose environmentally friendly intervention strategies in road conservation and maintenance. The development of this research focuses on the state road section E45 Macas Entrance to Sinaí of approximately 25 kilometers, on flexible pavement. Evaluations were carried out in order to observe and monitor first-hand, the deterioration, the structure of the pavement against vehicular loads, the quality of the existing materials and environmental conditions, crocodile skin type failures, longitudinal cracks due to fatigue and due to thermal contraction, in a surface index it has a range of 5 to 7 when applying the VIZIR methodology it correlates pavements, structurally it was found that there are characteristic deflections above 500 um, it is estimated that they are sites that require structural reinforcement, which means there is no deficiency in the intermediate layers; considering two options; The first is a traditional construction process with one hundred percent granular materials and the second is to perform a rap (recycling of asphalt pavement materials). This last alternative requires $353,070.10 plus VAT for construction work and $133,294.56 plus VAT for maintenance for each kilometer of intervention, an estimated saving of 18% and 46% respectively. Finally, with this research, it is established that it is necessary for the entities and agencies that manage road heritage to focus intervention decisions based on technical, economic and environmental analysis.