Stabilization of Soil Partially Replaced With Waste Paper Sludge Ash And Scrap TYRE Rubber

Abstract

This paper investigates strength characteristics of soil replaced partially with waste paper sludge ash (WPSA) and scrap tire rubber. WPSA is a waste material obtained during combustion of paper sludge at the paper recycling industries and scrap tire rubber have been used as a stabilizer for various civil engineering applications. In this present study the main objective is to know how much the combination of WPSA and scrap tyre rubber can be utilized for the improvement of strength properties of soil. The second objective is to find the variation of optimum moisture content and maximum dry density with increase in percentage replacement of WPSA and scrap tyre rubber. The third objective is to find the optimum concentration of WPSA and scrap tyre rubber based on the ucc test results and CBR ratio test. This study involves the determination of optimum concentration of WPSA and scrap tyre rubber by replacing the soil with different percentages and conducting the unconfined compression test and CBR Ratio test for each percentage. WPSA is used in 3, 6, 9 and 12% and scrap rubber in 4, 8, 12 and 16%. It is found that at 6% replacement of soil by WPSA the ucc value and cbr ratio got maximum result. Similarly at 8% of scrap tyre rubber these tests were shown maximum results and combination of WPSA and scrap tyre rubber have increased the unconfined compressive strength and CBR ratio than that of raw soil. This study shows WPSA and scrap tyre rubber can be used as stabilizers for improving the properties of soil.