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المؤلفAlhaj, K.M.A.
المؤلفBiscontin, G.
المؤلفElshafie, M.Z.E.B.
المؤلفOsman, A.S.
تاريخ الإتاحة2024-08-05T07:19:20Z
تاريخ النشر2020
اسم المنشورE3S Web of Conferences
المصدرScopus
الرقم المعياري الدولي للكتاب25550403
معرّف المصادر الموحدhttp://dx.doi.org/10.1051/e3sconf/202019501019
معرّف المصادر الموحدhttp://hdl.handle.net/10576/57442
الملخصSoil water retention curves (SWRCs) form an essential component of frameworks coupling the hydromechanical behaviour of unsaturated soils. The curves describe how suction changes with variables such as degree of saturation, void ratio and volumetric/gravimetric water content. SWRCs can be determined from incrementally drying initially saturated reconstituted samples to a final residual state, thus developing the primary drying curve (PDC). The primary wetting curve (PWC) is established from subsequent incremental wetting from residual state and is hysteretic compared with the PDC. SWRCs for reconstituted, high-plasticity, tropical clays from Africa (Sudan, Tanzania and South Africa) will be produced using suction measuring instruments, a tensiometer, filter paper and a dew point potentiometer. The development of SWRCs under various subsequent cycles of drying will be presented and discussed along with details concerning volumetric changes and cracking during drying. In order to investigate the uniqueness of the PDC and PWC and the effect of initial void ratio, SWRCs will be determined for samples formed by reconstituted from slurry under different applied energy levels.
راعي المشروعFinancial support for this research was provided by the UK Engineering and Physical Sciences Research Council (EPSRC) Global Challenges Fund under the Wind Africa project, Grant Ref: EP/P029434/1. This support is gratefully acknowledged. The authors wish to thank the technicians at Schofield Centre for their help.
اللغةen
الناشرEDP Sciences
الموضوعDrying
Soil moisture
Tropics
Voltage dividers
Wetting
Characteristic curve
Degree of saturations
Hydromechanical behaviour
Initial void ratios
Measuring instruments
Reconstituted sample
Soil water retention curves
Volumetric changes
Clay
العنوانWater retention and characteristic curves representing tropical clay soils from Africa
النوعConference
رقم المجلد195
dc.accessType Open Access


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