Evaluación superficial y estructural del pavimento de la av. Pitágoras desde el redondel de Terremoto Km 0+000 hasta el caserío San Luis km 4+000 de la parroquia Picaihua del cantón Ambato provincia de Tungurahua

Abstract

The road infrastructure of a city is an indispensable part for the economic and social development, therefore, the respective studies were carried out, determining that the road of the sector under study is currently in poor condition, which affects the safety, stability and reliability of the user. For this purpose, we began with a study of the current and projected TPDA; subsequently, the PCI of 15 sample units was determined and the Benkelman Beam test was performed at 9 points; the following tests were also carried out: DCP, abrasion, granulometry, Atterberg limits and CBR. Finally, a maintenance plan was proposed by sections based on track damage. As a result, in 20 years the road will be classified as a class I collector with a projected TPDA of 4,976 vehicles/day. As for the PCI, it was determined that from the 0+000 to the 2+730 abscissa it is in poor condition, for this reason, rehabilitation was proposed; however, from the 2+730 to the 4+000 abscissa it is in good condition, therefore, it only requires maintenance. On the other hand, with the Benkelman beam, it was determined that the first section has type III deflection, while the second has type I deflection. On the other hand, with the aforementioned tests it was identified that the road is made up of a granular layer corresponding to a class 4 base and a subgrade made up of silty sand. Finally, the budget required for maintenance is US $507,274.55.