Published Paper Details:

Expansive soils contain minerals such as smectite clays that are capable of absorbing water. When they absorb water, they increase in volume. The more water they absorb, the more their volume increases. Expansions of ten percent or more are not uncommon. This change in volume can exert enough force on a pavement, building or other structure to cause damage. The road stretch from Nekempte and Gudar road in Ethiopia are having pavement foundation failure, severe rutting and eroded surface and base courses. These kinds of failures are noticed in particular points of road stretch and the causes of failure are examined. Though the soil shows the expansive soil properties and the region shows high rainfall, the foundation of pavement failed to provide good support for the moving vehicles axles. To increase the strength parameters of soil by stabilizing the soil with fly ash and geo polymers. The results are good to provide the replacement of fly ash and geo polymer in the stabilization of expansive soil.