Estabilización y control de asentamientos elásticos en arcillas de alta plasticidad, mediante el uso de cal y cemento

Abstract

The present investigation was carried out with the objective of evaluating and comparing the use of lime and cement in high plasticity clays which are characterized by their low resistance and volumetric variations due to their humidity, acquired by capillarity and/or infiltration due to the medium to which they are exposed. The study is mainly based on analyzing and knowing how the soil resistance and the modulus of elasticity improve, causing the reduction of settlements, this through the use of a stabilizing agent, such is the case of quicklime and type 1 portland cement. For the study, 2 sampling sites were identified, which belong to the province of Santo Domingo de los Tsáchilas and Sucumbíos, the respective field work was carried out for the extraction of representative blocks from the site and later laboratory tests were carried out to obtain the physical (particle size, Atterberg limits, specific gravity and natural density) and mechanical properties (compaction test, “UU” triaxial test, unconfined compression test) of these soils. A test plan was executed, where different percentages of lime and cement were taken in order to compare and analyze the different results obtained through laboratory work and in this way to know what is the optimal stabilization percentage for these soils. Finally, a simple regression analysis of the reduction of the liquid limit, increase in the simple compression resistance and increase in the modulus of elasticity was carried out, from these results correlations were obtained based on the different percentages of lime and cement.