Published Paper Details:

Soil is a vital substance for all creatures in the world, soil has vast usage in different parts such as agriculture, civil work, foundation, bridges, embankment, buildings, canals, tunneling etc. Soil has different types and all the types of soil cannot fulfill all requirements of engineering properties and cannot stand against the properties such as mechanical strength, permeability, compressibility etc. among the different types of soils expansive soil is a weak soil which has less shear strength and should be stabilized for various construction purposes. Stabilization is the process of blending materials with soil in order to improve certain properties of soil like plasticity index, gradation, texture or act as a binder for the cementation of soil. Normally stabilization of soil is done by adding additives like lime, cement, etc. Cement stabilization is one of the effective stabilization processes but proves to be very costly in a long run. So, it needs an economic replacement by such materials which possess the same properties as that possessed by cement. It is being found that Pond ash possesses pozzolanic properties having silica as main component and Egg shell powder is having calcium oxide as its main component both being the main constituents of cement. Therefore, cement can be replaced partially or fully by these two waste materials in soil stabilization. A huge amount of eggshell and pond ash wastes is produced every year and there is an absence of effective waste disposal. Hence it is proposed to utilize ESP and pond ash for soil improvement which serves two purposes like waste utilization and also soil stabilization. In this present study, the two waste materials used are PA and ESP in different proportions. PA is first added in natural soil in different proportions like 3%, 5%, 7%, 9%and 11% by weight of soil and 5% PA was found an optimum proportion based on UCS values. After finding the optimum proportion of PA-soil mix i.e., 5% Then ESP was added in different proportions like 2%, 4%, 6%, 8% and 10% to the Soil-PA mix. From test results it was found that the UCS got a maximum value of 271.24 KN/m2 at 6% ESP.