Abstract
In recent times, enormous quantities of industrial wastes like silica fume, slag, fly ash, cynosphere, rice husk ash (RHA) etc. are produced all over the world. This industrial wastes are dumped in open landfills leading to land wastage and causing environmental pollution. If these wastes could be utilized as construction materials, then quantity of waste that is being dumped could be reduced leading to preservation of environment. Thus the objective of the current project was to utilize RHA along with quick lime as an admixture with Clayey Sand subgrade soil to determine the effect of quick lime and RHA on its strength characteristics after 3 days curing period. Lime was added to Clayey Sand to facilitate proper bonding between RHA and the soil. Based on the test results, 4% lime with 20% RHA was found to be optimal percentage of admixture for Clayey Sand for which maximum unconfined compression strength (UCS) and soaked CBR strength was attained after 3 days curing.
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