Effect of Groundnut Shell Ash on Laterite Soils Stabilized with Lime for Civil Structures

This study considered the practicality of groundnut shell ash (GSA) on laterite stabilized with lime for civil structures. Three site locations lateritic soil named specimen I, II and III were assembled from Ifewara, Atakunmosa West Local Government Area, Ilesa East Government, all situated in Osun State, Nigeria. Preliminary tests wrapped up specimens their characteristic states when optimum lime. Compaction, California Bearing Ratio (CBR) undrained triaxial shear strength performed fluctuating paces 2 %, 4 6 8 % GSA included to at The Atterberg limits showed a critical decrease plasticity index Compaction test lessening maximum dry density 1732 kg/m3 1651 1874 1621 1683 1655 stabilizing lime, presentation lime-soil decreases I diminished 1642 kg/m3, 1595 1611 substances individually. Addition enhanced engineering properties as unsoaked CBR values expanded specimens. At measurements, addition 110.74 kN/m2 127.53 individually while addition, was peak 118.24 kN/m2. expansion further affirms improvement prior shown geotechnical ash. content extended 60.43kN/m2 188.36kN/m2 4% content, both 19.19kN/m2 201.48kN/m2 30.62kN/m2 111.65kN/m2 separately. Conclusively, improved durability soils