EFECTO DE DIFERENTES DOSIS DE CAL EN EL LÍMITE PLÁSTICO, LÍMITE LÍQUIDO E ÍNDICE DE PLASTICIDAD DE UN SUELO ARCILLOSO DE LA CIUDADELA UNIVERSITARIA PUERTA ROJA (SINCELEJO, SUCRE, COLOMBIA)

Abstract

This research carried out at the Ciudadela Universitaria Puerta Roja (Sincelejo, Sucre, Colombia), which general objective was to evaluate the effects of different doses of hydrated lime in the liquid limit and plastic limit and plasticity index, consistency and fluidity index of a montmorillonitic clay soil. The methodology included the profile description and sampling disturbed by the experimental design randomized which continuous variables were limits and indexes, and factors were lime doses (3, 6, 9 and 12%) and contact times of 7, 30, 60 and 90 days, with three repetitions. The analysis results showed a significant improvement in the consistency: liquid limit decreased, increased plastic limit therefore decreased plasticity index. For liming 9% and rest times greater than 30 days, changes in properties studied are few. The statistical analysis showed that no significant differences between the liquid limit and the plastic limit means and for different % variations lime and days of ripening, for a confidence level of 95.0%.