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| Titre: | Effects of poly-sal polymer and barite addition on rheological properties of algerian bentonite |
| Auteur(s): | BacHir belmahdi, ilyes
Malek, Abderrahmane
Hammadi, Larbi |
| Mots-clés: | Bentonite
Barite
Poly-Sal
Structural parameter
Thixotropy
Viscoelasticity |
| Date de publication: | 2021 |
| Editeur: | EBSCOHOST |
| Collection/Numéro: | Epitoanyag - Journal of Silicate Based & Composite Materials / Vol. 73 , N° 1(2021);p2-8. 7p. |
| Résumé: | In this paper, we investigate the effect of Poly-Sal polymer and barite on the rheological properties
of bentonite of Maghnia (western Algeria). The modified Cross model is used to fit the stationary
flow curves of bentonite at different concentrations of Poly-Sal add in base bentonite (4%) and the
generalized model of Kelvin-Voigt is successfully applied to fit the creep and recovery data and to
analyze the viscoelastic properties of the mixture Bentonite-Barite. Finally, the thixotropic behavior
studied of the mixture Bentonite-Barite at constant temperature is analyzed by using a structural
kinetic model (SKM) in order to account for the time dependent effect. It is demonstrated that the
increase in quantity of barite in base bentonite induces a restructuring and reorganization of the
particles of the bentonite at the microstructural level. |
| URI/URL: | http://dlibrary.univ-boumerdes.dz:8080/handle/123456789/10135 |
| Collection(s) : | Publications Internationales
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