Investigación exploratoria sobre el efecto del aceite de motor usado en un suelo fino de subrasante

The search for new alternatives for soil stabilization by means of wasted materials promoted the development of this exploratory research to perform a preliminary evaluation of the geotechnical properties of a fine subgrade soil stabilized with different percentage (4 %, 8 %, 12 % y 16 %) of Used Engine Oil (UEO). In the development of this research, tests of Atterberg limits, permeability coefficient (k), unconfined compression stress (qu), and water-density ratio were performed on a soil classified as MH. The tests were performed both on the unstabilized soil and on UEO stabilized soil. Results show that the liquid and plastic limits tend to lower as the percent of UEO increases, the maximum dry density lightly increase, the optimal water content lower significantly, the unconfined compression stress (qu) stays constant with up to 8 % of UEO and permeability (k) does not show significant variation.