Usage of marble dust and fly ash on stabilization of clay soils

Soil stabilization with additive materials is used on large scale because of economical than other stabilization methods. Additive materials are lime, cement, waste marble dust, fly ash, bitümen. Recently usage of industrial waste materials come into prominence for this purpose.In this study, usability of marble dust and fly ash was researched in soil stabilization. Samples were prepared with marble dust and fly ash in determined ratio according to dry weight of clay soil. The samples were compacted at 15%-20% water content with Standard proctor compaction energie. Then, they were subjected to unconfined compression test, California bearing ratio, swalling, freeze-thaw and unconfined compression after freze-thaw.It was observed that additive of marble dust and fly ash increased strength and decreased swelling from test results. The optimum mixture ratio was 10% marble dust + 20% fly ash according many of test results. Wastes are gained to economy and environmental contaminant is decreased owing to usage of marble dust and fly ash on stabilization of clay soils.