Correlation between California Bearing Ratio (CBR) and Dynamic Cone Penetrometer (DCP) for soil from Sincelejo city in Colombia

摘要

This research aims at determining a correlation equation between California Bearing Ratio (CBR) and Dynamic Cone Penetrometer (DCP) for soils of Sincelejo city in Colombia allowing to economically and appropriately determine bearing capacity of subgrade soil in pavements design. 46 soils samples from the city's south were taken for in-situ (DCP) and laboratory (CBR, on unaltered sample) tests. A dispersion diagram and correlation curve with a determination coefficient greater than 80% were developed, i.e., the equation found has a good data representation of the tests carried out. Soil has predominant clay characteristics; therefore, it is necessary to project subgrade stabilization works in pavements design.