EFFECT OF POLYPROPYLENE ON SHEAR STRENGTH PARAMETERS

In this research the shear strength parameter of Highly cohesive soil is discussed. A Comparison of shear strength parameters and ultimate bearing capacity by direct shear test at various water content is calculated. Most of the engineering design methods and parameters of structure on soil have been developed for ideal soil, such as expansive clay which mostly deviates from the reality by atmospheric changes. Black Cotton soil is collected from Nadhenagarnear Kalewadi, Pune  which are one of the expands during the rainy seasons and shrinks during the summer seasons. In this paper the shear strength characteristics of Black Cotton soil from Nadhenagarnear Kalewadi, Pune were performing direct shear test 0n different range of Polypropylene as 0.2%, 0.4%, 0.6%, 0.8%. Shear Strength parameters were determined for different water content of 20%, 25%, 30% and 35%.From experimental investigation Black cotton soil for different % percentage of Polypropylene increase the cohesion and small increases in the friction angle