Soil stabilization with Basic Oxygen Furnace (BOF) slag

Abstract

The number of problems regarding the weak foundation and subgrade profile to support overlaying weight addresses mainly clay soils. Clay soils usually tend to be problematic and exhibit unsustainable infrastructure due to their low stiffness, strength, and high compressibility. In this study, the stabilization of kaolin clay with an iron by-product called Basic Oxygen Furnace (BOF) slag is considered. The aim of this study is to treat the problematic soil and promote the waste disposal of steel waste material. Soil treatment with BOF slag content of 10, 20, and 30% was assessed by an unconfined compressive strength test (UCS) for soil samples cured for 3, 7, 14, and 28 days. This technique would contribute to a sustainable and green environment in road construction.