Análisis de resultados de proyecto macro: correlación entre el CBR, DCP, propiedades índice y mecánicas en suelos de los cantones Ambato, Quero, Tisaleo, Mocha y Cevallos

Abstract

In this research, data corresponding to in situ and laboratory tests, obtained in previous studies, were compiled for 156 samples; field and laboratory tests were carried out to determine the properties of 6 samples from the Cevallos canton, creating a database of 162 samples in total. Correlations of 2 and 3 variables (least squares method) between index and mechanical properties were determined for the Cevallos canton (6 samples) and for the 162 samples from Ambato, Quero, Tisaleo, Mocha and Cevallos. In the first case, 23 out of 25 correlations reached correlation values equal to or higher than 50 percent; of the 22 correspondences determined for all the samples, 11 achieved correspondence results equal to or higher than 50 percent. The design of flexible pavement for the Cevallos canton was carried out in order to compare the laboratory CBR with the CBR obtained from the correlations with the highest correlation coefficient values between 2 and 3 variables: CBR vs. penetration index and CBR vs. optimum moisture - maximum dry density. The results indicate that the correlations allow obtaining CBR values quite close to the laboratory CBR and the pre-design of the pavement structural package yields similar layer thicknesses.