Geotechnical Review for Gypseous Soils: Properties and Stabilization

In many arid and semi-arid regions, collapsible soils are well-known to be problematic in nature negatively affect the performance of engineering structures. Gypseous soil considers one types soil. It represents a real challenge engineers due different problems encountered by projects implemented this The mineralogy, composition, fabric gypseous its ability deform when subjected wetting (due changing whole structure particles). Numerous studies considered their treatment with additives using methods. paper, properties gypsum (physical appearances, hardness, density, chemical structure), effect on (specific gravity, compaction properties, shear strength), main geotechnical soils, problems, important (traditional non-traditional) methods used mitigation have been discussed. Gypsum is unpredictable materials that forms, low density. occurring source sulphate it affects degrees depending content, presence other salts (than gypsum), gradation type, organic matters. There critical content beyond which strength (10-20)%. Finally, although there soil, use some should done caution avoid destructive results, especially clay