Water State of Soil Experienced Wetting–Drying Cycles
| Autor: | Haibo Lv, Jun-gui Dong, Guo-yuan Xu |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
021110 strategic
defence & security studies Materials science Hydraulics Water state 0211 other engineering and technologies 02 engineering and technology Geotechnical Engineering and Engineering Geology Critical value law.invention Permeability (earth sciences) Adsorption law Geotechnical engineering Wetting Porosity Water content 021101 geological & geomatics engineering |
| Zdroj: | Indian Geotechnical Journal. 50:1041-1047 |
| ISSN: | 2277-3347 0971-9555 |
| DOI: | 10.1007/s40098-020-00429-z |
| Popis: | Owing to rainfall and evaporation in nature’s water succession, clay soil inevitably experiences wetting–drying cycles. In the present study, experiments are carried out to investigate variations in the water state (i.e., adsorbed and bulk) during the wetting process and again after experiencing 0–4 wetting–drying cycles. Mathematical connections between the water content, wetting–drying cycle, and the water state are analyzed using nuclear magnetic resonance (NMR). The experimental results show a defined T2 cutoff (T2C) where T2 = 1.84 ms is selected as the critical value of the water state. Based on this T2C, water in the testing specimen is divided into adsorbed water (T2 |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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