Study on Application of Alkaline Residue Stabilized Soil in Pavement Subbase

Abstract

To analyze physical properties and chemical composition of alkaline residue from Weifang and detect on the feasibility used in subbase of secondary and under secondary level road. Alkaline residue is firstly added to varieties of materials such as clay, lime, fly ash etc, forming alkaline residue stabilized soil. Then, alkaline residue stabilized soil of the different ratio is proceeded on indoor compaction test, unconfined compression test, triaxial shear test. Different ratio tests show that alkaline residue soil added to lime or lime-fly ash should perfectly improve unconfined compressive strength and shear strength and meet the specification requirements. Alkaline residue applying to the road pavement base is feasible.