Abstract :
The need to bring down the damage to environment and the cost of soil stabilizers has to intense global research towards economic utilization of wastes for engineering purposes. The safe disposal of industrial and agricultural waste products demands urgent and cost effective solutions.The growing cost of traditional stabilizing agents and the need for the economical utilization of industrial and agricultural wastes has prompted an investigation into the stabilizing potential of coal ash, groundnut shell ash and bagasse ash in highly expansive soil. In this study industrial and agricultural wastes such as coal ash, groundnut shell ash and bagasse ash has been used as stabilizing agent.The effect of industrial and agricultural wastes under equal proportioning on certain properties of soil such as Optimum Moisture Content, Maximum Dry Density, Unconfined Compressive Strength and CBR has been studied under both light and heavy compaction. It has been observed that 12%C.A + 12%GSA, 16%C.A + 16%B.A and 16%B.A + 16%GSA are the optimum percentage combinations that give the maximum CBR value. The CBR value increased from 1.63% for native soil to 7.87%, 6.79% and 7.88% for respective combinations. The percentage increase was found to be 382.82%, 316.56% and 383.44%.
Keyword :
Bagasse ash, Coal ash, CBR, Groundnut Shell ash.