Stabilization of Low Shear Strength Soil by using Fly Ash

Abstract

Many infrastructure projects such as highways, railways, water reservoirs, reclamation etc. requires huge earth material. In such a way to enhance the engineering properties of the soil, it requires various soil stabilization techniques. Soil stabilization is used very widely for the construction of road pavement and foundation construction, to enhance engineering properties such as strength volume stability and durability. Soil is a peculiar material some waste materials such as Fly Ash, rice husk ash, pond ash may used to make the soil stable. And to addition of such materials will increase the physical properties of it. Fly Ash generated by the combustion of coal for energy production. It is an industrial by product. It may be of types C and F. In the present investigation is to evaluate the compaction and unconfined compressive strength of cohesive soil by using Fly Ash Mixtures. Some expecting properties to be improved such as shear strength of soil by the mixing of Fly Ash on different varying percentage of Fly Ash. It was found that the maximum shear strength is increased by 4 percent when 10 percent of fly ash by weight is mixed in soil and no remarkable change in internal friction.