The problem becomes more complicated when water flows through the gypseous soil causing leaching and movement of gypsum.
Ali Nasir Ibrahim, Tom Schanz 2017, 'Gypseous Soil Improvement by Silicone Oil', مجلة النهرين للعلوم الهندسيةhttps://nahje.com/index.php/main/article/view/71. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)