• Mr.Swapnil Raut
• Mr. Anuj Pawar
• Mr.Parth Mithawala
• Mr.Mitesh Waghela
• Mr.Rohit Parkar

Most of the time flexible pavements in India need to be constructed over problematic and poor subgrade. Such subgrades have low California Bearing Ratio (CBR), which leads to more thickness of the pavement. Decrease in availability of suitable granular sub-base and granular base course materials for highway construction leads to a search for economic method of converting locally available troublesome soil to suitable construction materials. Lime and Fly ash can be effectively utilized for improving the engineering properties of the weak soil. The present research was carried out to study the effect of lime and fly ash stabilization on Maximum Dry Density (MDD), Optimum Moisture Content (OMC) and California Bearing Ratio (CBR) of the subgrade soil. Also the pavement section has been designed as per Indian Practice Code IRC 37:2012 for different traffic intensity and construction cost estimated for 1 km pavement section resting on unstabilized and stabilized subgrade with different percentages of lime and fly ash. The study shows that 4.5 percent lime and 10 percent fly ash will be more effective in material and cost optimization.

stabilization, lime, flyash, california bearing ratio, economical analysis.

"Design of Flexible Pavements by using Lime and Fly Ash Stabilizers ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 3, page no.279-289, March-2019, Available :http://www.jetir.org/papers/JETIRAS06049.pdf

"Design of Flexible Pavements by using Lime and Fly Ash Stabilizers ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 3, page no. pp279-289, March-2019, Available at : http://www.jetir.org/papers/JETIRAS06049.pdf