Abstract
AbstractIn recent literature, substantial efforts have been made by various researchers to use lignosulphonate (LS) as an expansive soil stabilizer. This article presents a state-of-the-art review of the principles and prospects of using LS as an expansive soil stabilizer. In this regard, the attributes and limitations of LS as a soil stabilizer and its physicochemical effects on the geotechnical properties of expansive soils are discussed. The impact of LS as a stabilizing agent on important geotechnical properties of soil such as consistency, swelling-shrinkage behavior, strength characteristics, permeability, and deformation parameters are brought into the limelight. Besides, a discussion is carried out on the soil stabilization mechanism of LS based on X-ray diffraction (XRD), Scanning Electron Microscope (SEM), Fourier Transform Infrared (FTIR), Nuclear Magnetic Resonance (NMR), Computed Tomography (CT-Scan), Cation Exchange Capacity (CEC), and Specific Surface Area (SSA). Literature reveals that LS has promising potential to be used as an expansive soil stabilizer and it ensures the durability and sustainability of civil engineering structures resting on such soils given that proper technical considerations are made. This article is aimed to equip geotechnical engineers with the advanced knowledge of LS as an expansive soil stabilizer.KeywordsExpansive soilLignosulphonateSoil stabilizationGeotechnical propertiesStabilization mechanism
Published Version
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