Influence of Lime Sludge and Sodium Salts on the Strength and Structural Behavior of Clayey Soils–Granite Stone Slurry Dust Composite with Curing

Abstract

This study aims to show the changes in the properties of clayey soils in the presence of granite stone slurry dust and lime sludge collected from granite block sawing mill and sugar industry, respectively. Clayey soils in this study refer to black cotton soil and red earth. The changes in unconfined compressive strength of clayey soils–optimum granite stone slurry dust composite with curing stabilized with lime sludge and in the presence of sodium salts have been emphasized in this study. The unconfined compressive strength of clayey soils–optimum granite stone slurry dust composite increases marginally in the presence of lime sludge and sodium salts for samples tested immediately. However, the increase in strength was significant with curing. The maximum improvement in the strength has been observed in the presence of NaOH. Scanning electron microscope studies reveal the improvement in the structural behavior of the clayey soil–optimum granite stone slurry dust composite in the presence of lime sludge and sodium salts.