Monitoring the Behavior of Stabilized Earth under Absorption and Cyclic Loading

Abstract

Stabilization of Gypseous soil with liquid asphalt and implication of reinforcing strips into the embankment model can enhance the sustainability and long service life of the roadway. In this assessment, the soil stabilization technique with liquid asphalt (medium curing cutback and cationic emulsion) and the earth reinforcement (aluminum strips) have been implemented to construct a soil embankment models in the laboratory using Gypseous soil. The embankment model was subjected to cyclic loading, and the vertical and horizontal deformations were monitored under each load repetition. The Poisson ratio was calculated and its influence on the deformation was monitored. It was observed that implementation of both types of liquid asphalt exhibit positive influence on the resistance to vertical and lateral deformation as compared with the dry or absorbed soil sample models.The lateral deformation is significantly lower than the vertical deformation by (82.6, 61.1, 67.5, and 66.6) % for absorbed, dry, cutback stabilized, and emulsion stabilized soil models respectively. It was concluded that the sign of failure of the soil models could be observed by the decline of the Poisson ratio to (0.2, 0.32, 0.3, and 0.32) for absorbed, dry, cutback stabilized, and emulsion stabilized soil models after practicing (40, 150, 500, and 1000) loading cycles respectively.