Experimental Studies on The Strength Behaviour of Clayey Soil Treated With Coal Ash, Groundnut Shell Ash & Lime

Abstract

The clayey soil is collected from Ponnepadam11.219677 N, 75.878844 E, a marshy land
area. The collected soil is stabilized using coal ash, groundnut shell ash and lime in different
combinations. The collected soil is stabilized using coal ash alone, a combination of coal ash
and groundnut shell ash & a combination of coal ash, groundnut shell ash and lime. The
effect of these admixtures on the clayey soil was investigated with respect to Modified proctor
test, California bearing ratio (CBR) and unconfined compression test The results shows
increase in Optimum moisture content, UCC value and CBR value. There is also an increase
in maximum dry density (MDD). It was also found that there was a tremendous increase in
CBR value as well as in UCC value, when it is stabilized with a combination of coal ash ,
groundnut shell ash and lime. This indicates a potential of using coal ash, groundnut shell
ash and lime as a combination to stabilize clayey soil.