Methods for improvement of clay slurry or sewage sludge
Clay slurry or sewage sludge may be used as fill materials for land reclamation. However, the treatment of very soft materials of high water content is difficult. One major difficulty is how to create a working platform on top of the slurry layer for required soil improvement works such as vacuum pr...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2013
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| Online Access: | https://hdl.handle.net/10356/98466 http://hdl.handle.net/10220/12440 |
| _version_ | 1826123837669900288 |
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| author | Chu, Jian Yan, Shuwang Lam, Kok Pang |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Chu, Jian Yan, Shuwang Lam, Kok Pang |
| author_sort | Chu, Jian |
| collection | NTU |
| description | Clay slurry or sewage sludge may be used as fill materials for land reclamation. However, the treatment of very soft materials of high water content is difficult. One major difficulty is how to create a working platform on top of the slurry layer for required soil improvement works such as vacuum preloading to be carried out. Several methods that can be used to create a working platform on top of a slurry layer are reviewed in this paper. These include (1) sun drying; (2) capping with sand or other good soil; (3) use of geotextile; (4) cement mixing; and (5) dewatering using drainage. The advantages and disadvantages of each method are elaborated. Practical examples are given to illustrate the application of some of those methods. Sewage sludge is more difficult to treat because of its organic content and a combined chemical and mechanical method needs to be used. Two conceptual methods for using sewage sludge and other waste materials for land reclamation are also proposed. |
| first_indexed | 2024-10-01T06:11:11Z |
| format | Journal Article |
| id | ntu-10356/98466 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:11:11Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/984662020-03-07T11:43:45Z Methods for improvement of clay slurry or sewage sludge Chu, Jian Yan, Shuwang Lam, Kok Pang School of Civil and Environmental Engineering Clay slurry or sewage sludge may be used as fill materials for land reclamation. However, the treatment of very soft materials of high water content is difficult. One major difficulty is how to create a working platform on top of the slurry layer for required soil improvement works such as vacuum preloading to be carried out. Several methods that can be used to create a working platform on top of a slurry layer are reviewed in this paper. These include (1) sun drying; (2) capping with sand or other good soil; (3) use of geotextile; (4) cement mixing; and (5) dewatering using drainage. The advantages and disadvantages of each method are elaborated. Practical examples are given to illustrate the application of some of those methods. Sewage sludge is more difficult to treat because of its organic content and a combined chemical and mechanical method needs to be used. Two conceptual methods for using sewage sludge and other waste materials for land reclamation are also proposed. 2013-07-29T04:31:25Z 2019-12-06T19:55:30Z 2013-07-29T04:31:25Z 2019-12-06T19:55:30Z 2012 2012 Journal Article Chu, J., Yan, S., & Lam, K. P. (2012). Methods for improvement of clay slurry or sewage sludge. Proceedings of the ICE - Ground Improvement, 165(4), 187-199. https://hdl.handle.net/10356/98466 http://hdl.handle.net/10220/12440 10.1680/grim.11.00015 en Proceedings of the ICE - ground improvement © 2012 Thomas Telford Ltd. |
| spellingShingle | Chu, Jian Yan, Shuwang Lam, Kok Pang Methods for improvement of clay slurry or sewage sludge |
| title | Methods for improvement of clay slurry or sewage sludge |
| title_full | Methods for improvement of clay slurry or sewage sludge |
| title_fullStr | Methods for improvement of clay slurry or sewage sludge |
| title_full_unstemmed | Methods for improvement of clay slurry or sewage sludge |
| title_short | Methods for improvement of clay slurry or sewage sludge |
| title_sort | methods for improvement of clay slurry or sewage sludge |
| url | https://hdl.handle.net/10356/98466 http://hdl.handle.net/10220/12440 |
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