An overview of soil–water characteristic curves of stabilised soils and their influential factors

Since unsaturated soil conditions are normally experienced above the groundwater table, most treated or stabilised soils for roadworks, earth dams’ embankments, landfill sites, hydraulic barriers etc. could be regarded as existing in this region. The soil–water characteristic (or retention) curve (SWCC) is a useful conceptual tool by which an evaluation of soil's property functions and corresponding macro-scale behaviour (strength, volume change, conductivity, fluid flow, diffusivity, etc.) can carried out. Hence, examination some various factors that affect water retention very vital both laboratory studies field practice. However, thorough assessment understandably limited sometimes. This partly due to perculiar associated with preparation methods, type, soil-stabiliser mix proportion used, curing conditions, method compaction, durability modalities other logistical issues surrounding either instrumentation in-situ application. article presents critical comprehensive review these on soil’s also provides systematic understanding mechanisms stabilisation occurring at micro- macro-mechanical levels. Recommendations made stimulate further discussions synthesis SWCC vis-à-vis influencing them possible interpreted engineering behaviours such shear strength consolidation.