A STUDY OF SOIL STABILIZATION USING WASTE PLASTIC BOTTLE STRIPS

Abstract

Soil stabilization is one of the best method for improving physical properties like shear strength, bearing capacity etc. of the soil. For soil stabilization various admixture such as cement, lime, fly ash, gypsum etc. can be used. But these admixture are costly so their use for soil stabilization are limited. In some research it is found that utilization of waste material like plastic, bamboo etc. are quite helpful in stabilization of soil. In present world there is scarcity of good soil which makes construction process difficult. So to enhance the properties of soil so that it can be used for various construction there is need to add the suitable admixture in soil. These admixture should enhance properties of soil and also be economical. In this study plastic bottles are used as an admixture. The waste plastic bottles are cut into small strips and these strips are added in the soil in different percentage of 0%, 0.25%, 0.5% and 0.75% of dry weight of soil. Unconfined compressive strength test is conducted in the soil which gives the strength of soil. Along with plastic bottle strips cement is also added in the ratio of 1% and 1.5% of dry weight of soil. After finding out the unconfined compressive strength of different soil sample mixed with different percentage of plastic strips and cement, graphs and tables are plotted for the comparison of strength of different samples of soil.