Experimental tests on the Physical and hydro-mechanical properties of dune sand- Bentonite mixtures for use in engineered barriers
Experimental tests on the Physical and hydro-mechanical properties of dune sand- Bentonite mixtures for use in engineered barriers
This paper presents a study on the ruse of local materials such as dune sand and bentonite intended for the construction of the base liner of insulation barriers in hazardous waste canters. In order to get an adequate dune sand bentonite mixtures, an investigation relative to the hydraulic and mechanical behaviour is carried out in this study for different mixtures. According to the result obtained, the adequate percentage of bentonite should be between 12% and 15 %, which result in a hydraulic conductivity less than 10-9 m/s, and good shear strength (friction angle 26°). The relationship between the hydraulic conductivity and the swell of S/B mixture is well illustrated.
Goual Idriss; Gueddouda Kamel; Ferhat Ahmida; Nouioua Tahar
18th African Regional Conference on Soil Mechanics and Geotechnical Engineering (ARCSMGE2024)
Ground stabilization and improvement
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