Effect of desiccation on the geotechnical properties of lime-fly ash stabilized collapsible residual sand

Abstract

Abstract:Berea Red Sands underlying most of the Kwazulu Natal midlands and coastal plain is a very recent unconsolidated, weakly cemented red to brown, collapsible sands. The effect of wetting and drying cycles on the Unconfined Compressive Strength (UCS) and California Bearing Ratio (CBR) of compacted and cured samples of stabilized Berea Sands was investigated. Different sample mix were prepared with 4% and 8% Lime and 0%, 6% 12% and 18% Fly Ash, and tested after 4, 8 and 12 cycles of wetting and drying..