Series-parallel structure-oriented electrical conductivity model of saturated clays
A new series-parallel model for electrical conductivity of saturated clays that considers particles structure orientation is presented in this study. The new model introduces a simple approach to consider the effect of surface conductivity of clay particles on the electrical conductivity of saturate...
| Main Authors: | , , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/142134 |
| _version_ | 1811693957359337472 |
|---|---|
| author | Md Farhad Hasan Abuel-Naga, Hossam Broadbridge, Philip Leong, Eng Choon |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Md Farhad Hasan Abuel-Naga, Hossam Broadbridge, Philip Leong, Eng Choon |
| author_sort | Md Farhad Hasan |
| collection | NTU |
| description | A new series-parallel model for electrical conductivity of saturated clays that considers particles structure orientation is presented in this study. The new model introduces a simple approach to consider the effect of surface conductivity of clay particles on the electrical conductivity of saturated clays. The proposed approach considers the clay particle and its surrounding diffuse double layer, as a single unit called an effective clay particle, and assigns it an isotropic apparent electrical conductivity that can be determined using a simple experimental method. Therefore, the saturated clay can be considered as a two-phase material (binary mixture) namely, free pore water and effective clay particles. Considering the clay particles structure orientation, the proposed electrical conductivity model in this study geometrically configures the components of two-phase saturated clays in a series-parallel form to determine the electrical conductivity of clay. The proposed electrical conductivity model uses one parameter that can be determined experimentally and it reflects the anisotropic condition of the clay fabric. The validity of the proposed model is verified by comparing its results with the experimental results of three different clay types reconstituted at different dry density levels and particles structure orientations. The comparison shows the accuracy of the proposed model in predicting the electrical conductivity of saturated clays. |
| first_indexed | 2024-10-01T06:59:56Z |
| format | Journal Article |
| id | ntu-10356/142134 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:59:56Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1421342020-06-16T05:21:55Z Series-parallel structure-oriented electrical conductivity model of saturated clays Md Farhad Hasan Abuel-Naga, Hossam Broadbridge, Philip Leong, Eng Choon School of Civil and Environmental Engineering Engineering::Civil engineering Electrical Conductivity Series-parallel Clay Model A new series-parallel model for electrical conductivity of saturated clays that considers particles structure orientation is presented in this study. The new model introduces a simple approach to consider the effect of surface conductivity of clay particles on the electrical conductivity of saturated clays. The proposed approach considers the clay particle and its surrounding diffuse double layer, as a single unit called an effective clay particle, and assigns it an isotropic apparent electrical conductivity that can be determined using a simple experimental method. Therefore, the saturated clay can be considered as a two-phase material (binary mixture) namely, free pore water and effective clay particles. Considering the clay particles structure orientation, the proposed electrical conductivity model in this study geometrically configures the components of two-phase saturated clays in a series-parallel form to determine the electrical conductivity of clay. The proposed electrical conductivity model uses one parameter that can be determined experimentally and it reflects the anisotropic condition of the clay fabric. The validity of the proposed model is verified by comparing its results with the experimental results of three different clay types reconstituted at different dry density levels and particles structure orientations. The comparison shows the accuracy of the proposed model in predicting the electrical conductivity of saturated clays. 2020-06-16T05:21:55Z 2020-06-16T05:21:55Z 2018 Journal Article Md Farhad Hasan., Abuel-Naga, H., Broadbridge, P., & Leong, E. C. (2018). Series-parallel structure-oriented electrical conductivity model of saturated clays. Applied Clay Science, 162, 239-251. doi:10.1016/j.clay.2018.06.020 0169-1317 https://hdl.handle.net/10356/142134 10.1016/j.clay.2018.06.020 2-s2.0-85048801375 162 239 251 en Applied Clay Science © 2018 Elsevier B.V. All rights reserved. |
| spellingShingle | Engineering::Civil engineering Electrical Conductivity Series-parallel Clay Model Md Farhad Hasan Abuel-Naga, Hossam Broadbridge, Philip Leong, Eng Choon Series-parallel structure-oriented electrical conductivity model of saturated clays |
| title | Series-parallel structure-oriented electrical conductivity model of saturated clays |
| title_full | Series-parallel structure-oriented electrical conductivity model of saturated clays |
| title_fullStr | Series-parallel structure-oriented electrical conductivity model of saturated clays |
| title_full_unstemmed | Series-parallel structure-oriented electrical conductivity model of saturated clays |
| title_short | Series-parallel structure-oriented electrical conductivity model of saturated clays |
| title_sort | series parallel structure oriented electrical conductivity model of saturated clays |
| topic | Engineering::Civil engineering Electrical Conductivity Series-parallel Clay Model |
| url | https://hdl.handle.net/10356/142134 |
| work_keys_str_mv | AT mdfarhadhasan seriesparallelstructureorientedelectricalconductivitymodelofsaturatedclays AT abuelnagahossam seriesparallelstructureorientedelectricalconductivitymodelofsaturatedclays AT broadbridgephilip seriesparallelstructureorientedelectricalconductivitymodelofsaturatedclays AT leongengchoon seriesparallelstructureorientedelectricalconductivitymodelofsaturatedclays |