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| Content Provider | EDP Sciences |
|---|---|
| Author | A. Hachichi S. Bourokba J.-M. Fleureau |
| Abstract | Cette étude a été réalisée sur des sols provenant de deux sites situés à proximité de la ville d’Oran (nord-ouest de l’Algérie) où l’on rencontre de nombreux problèmes de fissuration de bâtiments et de soulèvement de fond de fouilles. Les sols ont été caractérisés du point de vue minéralogique et du point de vue géotechnique. Ces essais ont été complétés par des mesures directes de gonflement à l’eau. Dans une seconde étape, l’étude a porté sur l’effet de différentes solutions salines minérales ou organiques à différentes concentrations sur l’amplitude du gonflement. Les sels utilisés ont conduit à des réductions très importantes du gonflement pouvant atteindre 80 %. Afin d’estimer les modifications à long terme apportées par les fluides hydratants, les limites de liquidité de plasticité et de retrait des argiles stabilisées, ont été mesurées. On note une bonne corrélation entre l’effet des sels sur le gonflement libre et la diminution de plasticité, les meilleurs résultats étant obtenus en présence de KC1 et les moins bons, avec CaCl2. |
| Ending Page | 11 |
| Starting Page | 3 |
| Page Count | 9 |
| File Format | HTM / HTML PDF |
| ISSN | 01810529 |
| Alternate Webpage(s) | https://www.geotechnique-journal.org/articles/geotech/abs/2007/01/geotech2007118p3/geotech2007118p3.html |
| e-ISSN | 24938653 |
| Issue Number | 118 |
| Journal | Revue Française de Géotechnique |
| DOI | 10.1051/geotech/2007118003 |
| Language | French |
| Publisher | EDP Sciences |
| Publisher Date | 2007-01-01 |
| Access Restriction | Open |
| Rights Holder | © CFMS-CFGI-CFMR-CFG 2007 |
| Subject Keyword | argiles gonflantes gonflement pression de gonflement stabilisation chimique Algérie expansive soils / swelling / swelling pressure / chemical treatment / Algeria |
| Content Type | Text |
| Resource Type | Article |
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