Análisis de las correlaciones entre el cbr, dcp, propiedades índice y mecánicas en suelos de las parroquias Saquisilí, Chantilín y Cochapamba, cantón Saquisilí, provincia de Cotopaxi

Abstract

Currently, in the Saquisilí canton, the database corresponding to index and mechanical properties of the soil is short, and it also has several ballasted roads that require paving. In order to find preparation equations and carry out a pre-design of flexible pavement for the benefit of the parishes of the Saquisilí canton and sectors with soils with similar characteristics. Within the study area there is a road corresponding to the Chantilín parish, a road in the Saquisilí parish and finally a road in the Cochapamba parish. A total of 12 pits were carried out in the study area. First, the DCP and Sand Cone tests were carried out in situ. Subsequently, 50 kilograms of soil sample was extracted from each pit to be tested in the laboratory and determine the index and mechanical properties. based on AASHTO, ASTM and SUCS standards, from which 29 correlations were derived, obtained with a degree of reliability greater than 50 percent; As a result, the structural pavement package was designed for a new road in the Chantilín parish with laboratory CBR, obtaining thicknesses of 7 cm for asphalt layer, 10 cm of base layer and 11 cm of subbase layer; On the other hand, with CBR to improve, thicknesses of 7 cm for asphalt layer, 11 cm of base layer and 12 cm of subbase layer will be obtained. Finally, the pavement predesign will benefit the inhabitants and surrounding areas of the Chantilín parish.