Abstract
The current investigation work has investigated the utilization of Fly Ash (FA) in soil improvement and to assess the impacts of addition of various rates of FA on the sample of unsaturated soil. Effect of fly ash addition has been investigated on moisture content, degree of compaction and densities of unsaturated soil by directing different experiments. In the primary phase samples have been prepared with included FA in the percentages of 12%, 17%, 22%, and 27% respectively. Moisture content and densities experiments have been conducted without addition of FA for reference value. Each experiment was carried out with the mixtures having their optimal moisture content (OMC) and their maximum dry density (MDD). With the increase in percentage of water the degree of compaction, Dry density as well as bulk density has been increased up to a certain limit beyond this shows reverse result. Decrease in dry density was higher as compared to bulk density of the sample while increase in moisture content has been observed with the addition of FA in the sample. Addition of fly ash up to a certain limit shows good agreement for utilization as sand replacement or additives in civil application for sustainable applications.
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