Efeito do umedecimento e da velocidade de deformação sobre a resistência de solos cimentados artificialmente

Abstract

This work presents and analyses results of unconfined compression tests carried out in specimens of an artificially cemented lateritc soil. The soil used in this study was classified as SC (Clayey Sand). In the work four variables had been considered: amount of cement (2%, 5% and 10%), density (three distinct energies of compacting), effect of wetting (soaking and not soaking samples) and rate of deformation (0.01 and 1.0 mm/min). The results had shown that the strength increases with the increase of the cement content and decrease exponentially with the increase of the void ratio, soaking provokes loss of strength in the soil only for lower cement content and occurs a trend of increase of the resistance in function of the increase of the rate of deformation for samples in the condition most compact, This increase in rate of deformation is consistent with that seen in sedimentary and residual soils with some degree of cementation