Improving the Bearing Capacity of Soft Clay Using Encased Recycled Concrete Aggregate RCA Columns

Abstract

Stone columns are one of the effective ground improvement techniques to increase the bearing capacity of the soil and reduce settlement. In this study, stone columns made of recycled concrete aggregates and fully geogrid reinforced were used soft clay soils have been reinforced in several different ways.The results indicated that the use of stone columns made of recycled concrete aggregate and fully reinforced with geogrid significantly improved the bearing capacity of the soil.Compared to natural soils, the use of single and double stone columns reinforced with geogrid improved the bearing capacity of the soil by 9% and 22%, respectively