Behavior Comparison of marl and dredged soil stabilized with Electric Arc Furnace (EAF) and Basic Oxygen Furnace (BOF) steel slags

Tabriz marl soil are Lake Carbonated sediments. The percentage of organic matter in this soil is less than 6%; and does not fit into the classification of organic soils. The carbonate content of this soil is from 10 to 35%. The classification of this soil is mostly CH and in some cases MH (Mahouti and Katabi, 1397). Dredged soil is not much different from conventional fine-grained soil and can be used in a variety of applications with stabilization. Due to poor geotechnical properties; they are stabilized for use in dredging materials in engineering applications (Chan and Shahri, 2016). To stabilize the soil; Stable stabilizers (such as steel slag and industrial waste) have been proposed to replace cement. In the meantime, the environmental compatibility (safety in terms of pH and harmful substances, such as heavy metals and toxic substances) of BOF slag (as soil stabilizer and filler) has been confirmed. Therefore, the use of steel slag; In addition to reducing project costs and environmental problems caused by lime and cement production (reducing CO2 emissions and energy consumption), it does not pollute the environment and eliminates the problem of accumulation of by-products of the industry (Proctor et al., 2000; Motz and Geiseler, 2001; Kang et al., 2019).