Propuesta de un plan de rehabilitación de la capa de rodadura de la vía Cunchibamba – San Andrés, desde el tramo km 4+400 hasta km 8+800 entre los cantones Ambato - Píllaro, provincia de Tungurahua

Abstract

Due to the conditions of the road, which presents problems and does not provide the necessary road safety for the adequate mobilization of its inhabitants, this plan is proposed to extend its useful life by means of road evaluation studies. To begin with, a georeferenced survey was obtained, using GPS, with a total of 324 points and a length of 4.4 kilometers using the CIVIL3D program. The TPDA was determined by a manual vehicle count during one week at an interval of twelve hours per day, classifying it as a Class II collector road. Soil samples were extracted and tested for granulometry, Atterberg limits, compaction test and CBR; obtaining a poorly graded sandy soil (SP) and silty sand (SM). In addition, with the CBR test it was concluded that the soil quality presented varied from "Fair" to "Good". The visual inspection was carried out using the PCI method, evaluating 18 sampling units, 5 of which were critical, resulting in a value of 32.51, which is a BAD pavement, requiring rehabilitation along the road. The non-destructive Benkelman Beam test was performed in 23 stations every 200 meters along the road, obtaining a TYPE III deflection, qualifying the subgrade as "GOOD" and the pavement as "BAD". Finally, it is considered to improve road safety by improving the quality of life of road users.