Evaluación superficial y de la estructura del pavimento de la vía Pelileo – Guayaquil abscisa 0+000 – 4+580, ubicada entre los cantones Quero y Pelileo de la provincia de Tungurahua

Abstract

The Pelileo-Guayaquil highway connects the Quero and Pelileo cantons, and its analysis is truly crucial. So far, no previous study has been conducted on this road, leading to the proposal of a road maintenance plan. Both qualitative and quantitative research methods were employed due to the analysis of the physical components of the structure. The process began with a traffic count, obtaining the value of the Average Daily Traffic (ADT) and Projected Traffic. Samples were taken from the subgrade and granular part of test pits, with 1 cubic meter samples for every kilometer. These samples underwent tests such as gradation, Atterberg limits, Modified Proctor, and California Bearing Ratio (CBR). According to the MTOP-2002 classification, the road was identified as a medium-capacity C1-type highway. Subsequently, the pavement was analyzed using the PCI method, revealing that the road is in a "Good" condition. Pavement deflections were moderately good, and a fine sand A – 3 was obtained with an average CBR of 28.475 percent, indicating excellent suitability for the subgrade. Similar tests were conducted on the granular part, categorizing it as a Base Class 4 with an average CBR of 87.73 percent. The abrasion test resulted in an average value of 38.43 percent, indicating an "Excellent" rating for the base. Finally, a road maintenance plan was established, which can be executed with a budget of $208,533.13. This information will be valuable in understanding the physical components of the pavement structure.