Effect of Suction Cycles and Suction Gradients on the Water Retention Properties of a Hard Clay
The effect of suction cycles and suction gradients on a hard clay is investigated. The cylindrical samples of the hard clay are prepared to carry out the hydration and dehydration tests with different suction gradient and suction cycles. The results show that the suction gradient has little effect o...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2015/313682 |
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| _version_ | 1832564616355381248 |
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| author | Liufeng Chen Hua Peng |
| author_facet | Liufeng Chen Hua Peng |
| author_sort | Liufeng Chen |
| collection | DOAJ |
| description | The effect of suction cycles and suction gradients on a hard clay is investigated. The cylindrical samples of the hard clay are prepared to carry out the hydration and dehydration tests with different suction gradient and suction cycles. The results show that the suction gradient has little effect on the suction-water content relation, while the suction cycle has great effect on it, particularly the first cycle of hydration and dehydration. The apparent moisture diffusion coefficient of the hard clay has been identified by the use of a two-dimensional diffusion model. The moisture diffusion coefficient varies between 4.10−11 m2/s and 2.10−10 m2/s and it decreases during dehydration while the relative humidity is less than 85%. The results also show that the suction cycles play little effect on the moisture diffusion coefficient. |
| format | Article |
| id | doaj-art-793fe0c00f4447619e70cd3202227b4d |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-793fe0c00f4447619e70cd3202227b4d2025-02-03T01:10:32ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422015-01-01201510.1155/2015/313682313682Effect of Suction Cycles and Suction Gradients on the Water Retention Properties of a Hard ClayLiufeng Chen0Hua Peng1School of Civil and Architectural Engineering, Wuhan University, Wuhan 430072, ChinaSchool of Civil and Architectural Engineering, Wuhan University, Wuhan 430072, ChinaThe effect of suction cycles and suction gradients on a hard clay is investigated. The cylindrical samples of the hard clay are prepared to carry out the hydration and dehydration tests with different suction gradient and suction cycles. The results show that the suction gradient has little effect on the suction-water content relation, while the suction cycle has great effect on it, particularly the first cycle of hydration and dehydration. The apparent moisture diffusion coefficient of the hard clay has been identified by the use of a two-dimensional diffusion model. The moisture diffusion coefficient varies between 4.10−11 m2/s and 2.10−10 m2/s and it decreases during dehydration while the relative humidity is less than 85%. The results also show that the suction cycles play little effect on the moisture diffusion coefficient.http://dx.doi.org/10.1155/2015/313682 |
| spellingShingle | Liufeng Chen Hua Peng Effect of Suction Cycles and Suction Gradients on the Water Retention Properties of a Hard Clay Advances in Materials Science and Engineering |
| title | Effect of Suction Cycles and Suction Gradients on the Water Retention Properties of a Hard Clay |
| title_full | Effect of Suction Cycles and Suction Gradients on the Water Retention Properties of a Hard Clay |
| title_fullStr | Effect of Suction Cycles and Suction Gradients on the Water Retention Properties of a Hard Clay |
| title_full_unstemmed | Effect of Suction Cycles and Suction Gradients on the Water Retention Properties of a Hard Clay |
| title_short | Effect of Suction Cycles and Suction Gradients on the Water Retention Properties of a Hard Clay |
| title_sort | effect of suction cycles and suction gradients on the water retention properties of a hard clay |
| url | http://dx.doi.org/10.1155/2015/313682 |
| work_keys_str_mv | AT liufengchen effectofsuctioncyclesandsuctiongradientsonthewaterretentionpropertiesofahardclay AT huapeng effectofsuctioncyclesandsuctiongradientsonthewaterretentionpropertiesofahardclay |