Effect of installing columns from different solid waste materials on the soft clay bearing capacity

Soft clay deposits cause many problems due to low bearing capacity and high deformation. This paper presents the results of laboratory model tests for studying improvement soft clay-bearing using two kinds soil columns, first is slag-cement dust columns second bentonite column. Three from SCC (slag-cement columns) encased by Woven Geotextile are installed beneath a steel plate representing footing. Four Columns (BC) with non-woven geotextile around at distance 1 B, where B width. The research aims assess increase in length effect on capacity. A series 4 experimental were performed. show that, increased column because slag can absorb water content, leading an shear strength. Floating gives better than end columns. partially replaced cement weak enough transfer total applied stress strong layer.