Correlación entre el CBR, DCP, propiedades índice y mecánicas en suelos de las parroquias Huambaló y Cotaló, cantón Pelileo, provincia de Tungurahua

Abstract

The purpose of this experimental work is to determine the correlations between the laboratory CBR and the index and mechanical properties of the soils of the Huambaló and Cotaló parishes of the Pelileo canton, province of Tungurahua. Three roads were randomly selected in each parish. For each road, two open pits were drilled, where field tests were performed (field density and DCP) and a representative sample of the soil present was extracted for laboratory tests (Atterberg limits, specific gravity, granulometry, compaction and CBR). Once the tests were concluded, the data obtained were processed and analyzed, allowing us to know the type and characteristics of the soil. In addition, correlations between soil properties were developed, obtaining a total of 25. These correlations were acceptable to excellent, since their coefficient of determination varied between 50 and 100 percent. Finally, the design of a flexible pavement was carried out using the AASHTO 93 standard, both for the laboratory CBR and the CBR obtained by correlation with the DCP. There was no considerable variation in the theoretical thicknesses obtained, so 15 cm of subbase, 10 cm for the base and 5 cm of asphalt binder were proposed for both cases.