1. Behavior of load-settlement-time for short-term wetting in unsaturated test of Al-Najaf gypseous soil.
- Author
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Saleh, S. M. and Mahmood, M. S.
- Subjects
- *
WETTING , *SOIL density , *SOIL classification , *SOIL sampling , *COMPACTING - Abstract
This recent paper is focused on the effect of multiple matric suctions (90, 50, 20, 10, 7, 2, and 0 kPa) on gypseous sand in the short-term on the deformation of the Oedometer cell specimen under net stresses of 100, 200 and 400 kPa. The specimen was prepared from disturbed samples according to a degree of compaction of 90%. This percentage of density (90%) was relied upon to compare the results with a previous study, which was conducted on the same type of soil with the same density, but without the influence of external stresses. The soil samples were represented the Al-Jameah district in Al-Najaf city, Iraq. The results illustrate an increase in the deformation within a decreasing of the matric suction (wetting) under different normal stresses. The final settlement of the specimen is related to the initial load-settlement value before wetting. The deformation rate is clear and greatest when the stress is ≥200 kPa with similar rates. Low collapse potentials are revealed due to wetting progress, and this may be attributed to the short-term process (a few hours). [ABSTRACT FROM AUTHOR]
- Published
- 2023
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