Avaliação do efeito da adição da cal na resistência ao cisalhamento de solos lateríticos.

Abstract

This dissertation presents the results of a study developed with six Lateritic Soils of the State of Paraíba, aiming to evaluate the effect of the addition of lime on the shear strength of the same, through non-consolidated undrained triaxial tests that provided the values ​​of the parameters cohesion and friction angle. It also presents the evolution of these parameters when adding 2%, 4%, 6% and 8% of lime by weight and the identification of the content considered to be optimal for carrying out the stabilization process. To make this study feasible, the specimens were molded in the optimum humidity and maximum dry bulk density, for each soil and for each lime content, Moves specimens, at least, were molded and cured for a period of 28 days, in a humid chamber with 100% +/- 5% relative humidity and temperature of 22º +/- 2º. The results obtained and analyzed statistically, showed that the studied soils increased, in general, their shear strength and decreased the deformation of the specimens, with the application of the deviating stress, as the increase in lime increases, and the content 8% of lime by weight was what caused the greatest gain in cohesion and friction angle.