Improvement of Dune Sands by Residual Oil in Order to Use in Construction of Lagoons

• Main Authors: Alborz Hajian nia, Esmaeel Aflaki
• Format: Article
• Language: English
• Published: Water and Wastewater Consulting Engineers Research Development 2011-10-01
• Series: آب و فاضلاب
• Subjects: Dune Sand; Residual oil; Improvement of Geotechnical Properties; Geo-Environment Impact; Lagoon
• Online Access: http://www.wwjournal.ir/article_841_e0d716025e76932159bc973733c5269a.pdf

This research which is based on experimental work, devoted to study the improvement and stabilization of dune sands in order to create strong layer and stabilize slope and floor construction of sewage Lagoons. Materials used stabilizing these soils are residual oil from the refinery. To confirm the effectiveness of the use of residual oil to improve the mechanical properties of the sand, various samples with different percentages were tested. In besides, the geotechnical and environmental tests were done. Results demonstrate that samples made with 5% oil have highest shear and unconfined compaction strength. It revealed that in compare with natural samples, cohesion and loading capacity highly increased and permeability decrease well. Percentage of fine aggregate, minerals and durability of oil in soil material were also investigated. Finally, effects of sewage on the samples were analyzed, and performance the oils were evaluated in order to use in lagoons.