INFLUENCE OF DRYING-WETTING CYCLES ON THE COMPRESSIBILITY OF CLAY SOILS IN THE COMMUNE OF HOUEYOGBE
Journal: International Journal of Engineering Sciences & Research Technology (IJESRT) (Vol.10, No. 5)Publication Date: 2021-05-30
Authors : Bertrand GBAFFONOU Yvette TANKPINOU KIKI Virtus TOHOUNGBA; Victor S. GBAGUIDI;
Page : 1-12
Keywords : : clay soils; drying; humidification; suction; odometer;
Abstract
This article presents the results of an experimental laboratory study carried out with the odometer and the Richards press on a class A3 clay soil sample that had undergone drying-wetting cycles. These tests allowed us to analyze in fine the influence of the drying-wetting cycles on the compressibility and suction behavior of the soil object of our study. This study reveals that the drying-wetting cycles have a certain influence on clay soils. Indeed, the compressibility index of the soil increases while the swelling index decreases according to the cycles; the pre-consolidation pressure and the oedometric modulus show a more or less constant variation; the permeability of the soil increases clearly when the number of cycles increases. Soil suction decreases as the number of drying-wetting cycles increases under extreme conditions.
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Last modified: 2021-06-30 08:59:27