STRENGTH IMPROVEMENT OF SOIL WITH PERIWINKLE SHELL ASH AND MARBLE DUST POWDER

Stabilization of clay soil has been carried out for improving its engineering properties of soil. For this study, the soil samples were collected from Mishriwala located in Jammu and periwinkle shell powder from Mumbai. To stabilize the clayey soil use periwinkle shell powder and Marble Powder, an experiment is conducted to evaluate the properties of soil mixing with 3%, 6%, 9%, 12% percentage of periwinkle shell powder and marble powder 4%, 8%, 12%, 16% by weight of soil sample and then the test perform. Test conducted for the clayey soil mixed with periwinkle shell powder and marble powder are liquid limit, plastic limit.Substantial decreases in Atterberg’s limit, liquid limit, plastic limit and plasticity index were observed. The liquid limit decreases, the plastic limit decreases and the plasticity index decreases with increasing amount of marble powder and periwinkle shell powder. Compaction test (OMC and MDD) the maximum dry density (MDD) and optimum moisture content (OMC) of soil increases with increasing percentages of marble powder and periwinkle shell powder. California bearing ratio (CBR) the unsoaked CBR of soil goes on increasing with an increase in the percentage of addition of marble powder and periwinkle shell powder. The soaked CBR has also increased by the addition of marble powder and periwinkle shell powder up to 16 % both.Unconfined compression test (UCS)the unconfined compressive strength increases by the addition of marble powder and periwinkle shell powder. Laboratory test shown the significant improvement in soil properties. The study therefore concluded that periwinkle shell powder and marble powder could be considered as good stabilizer for clayey soil.