Stabilization of clayey soil with lime and waste stone powder

In this research, waste stone sludge obtained from slab stone processing from stone washing plants were recycled to Stabilization of clayey soil with lime. Fine-powdered stone sludge was mixed with clay soil and lime. Thus, the effectiveness of using waste stone powder and lime in stabilizing fine-grained clayey soil (CL) was investigated in the laboratory. The soil samples in natural state and when mixed with varying percentages of lime and waste stone powder were used to laboratory tests that included atterberg limits tests, grain size analysis, standard Proctor compaction tests, unconfined compression tests and California bearing ratio tests. The results show significant reduction in plasticity and changed the optimal moisture and maximum dry density of clayey soil with increasing amount of waste stone powder and lime. The results of the unconfined compressive strength tests and California bearing ratio tests show that in the different curing time, the addition of waste stone powder and lime caused an increase in the value of UCS up to 6% waste stone powder content and 7% lime content, and increase in the value of CBR until 6% waste stone powder content and 9% lime content, for further percentages, the value of UCS and CBR decreased.