Experimental study on transforming dredged silt from water systems into roadbase filling
A method was presented to treat the dredged silt from water systems with soil stabilizer so that the soils became suitable for roadbase construction. Two soil samples, namely silt (soil a) and silty clay (soil b) dredged from the Hangzhou-Ningbo Canal, with different stabilizer/soil ratios were firs...
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| Format: | Article |
| Language: | English |
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Zhejiang University Press
2005-03-01
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| Series: | 浙江大学学报. 农业与生命科学版 |
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| Online Access: | https://www.academax.com/doi/10.3785/1008-9209.2005.02.0225 |
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| _version_ | 1849247385697386496 |
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| author | SHAO Yu-fang |
| author_facet | SHAO Yu-fang |
| author_sort | SHAO Yu-fang |
| collection | DOAJ |
| description | A method was presented to treat the dredged silt from water systems with soil stabilizer so that the soils became suitable for roadbase construction. Two soil samples, namely silt (soil a) and silty clay (soil b) dredged from the Hangzhou-Ningbo Canal, with different stabilizer/soil ratios were first shaped into cylinders 5 cm in both diameter and height. Then unconfined compression tests were conducted to measure the strength increase of the stabilized soil and determine the optimal stabilizer/soil mixing ratio. Results showed that the confined compression strength (q<sub>u</sub>) of both soil samples was effectively enhanced. When the mixing ratio a<sub>w</sub>≥4%, both of the two stabilized-soils can be used as subbase filling of road, and when a<sub>w</sub>≥10%, only stabilized soil a can be used as roadbase filling. So long as a<sub>w</sub><2%, the stress-strain (σ-ε) curves of the two stabilized soil samples were almost identical to that of the original soils, which were work hardening. As a<sub>w</sub>≥2%, σ-ε curves of the two stabilized soils turned into work softening. The curves also revealed that the stabilizer was capable of reducing the brittleness and increasing the plasticity of soil a, with, however, an opposite effect on soil b. Through field tests, the method was proved to be economically and technically feasible. |
| format | Article |
| id | doaj-art-f8399fc8723f49cba1a45e9589c3b2ab |
| institution | Kabale University |
| issn | 1008-9209 2097-5155 |
| language | English |
| publishDate | 2005-03-01 |
| publisher | Zhejiang University Press |
| record_format | Article |
| series | 浙江大学学报. 农业与生命科学版 |
| spelling | doaj-art-f8399fc8723f49cba1a45e9589c3b2ab2025-08-20T03:58:14ZengZhejiang University Press浙江大学学报. 农业与生命科学版1008-92092097-51552005-03-013122522810.3785/1008-9209.2005.02.022510089209Experimental study on transforming dredged silt from water systems into roadbase fillingSHAO Yu-fangA method was presented to treat the dredged silt from water systems with soil stabilizer so that the soils became suitable for roadbase construction. Two soil samples, namely silt (soil a) and silty clay (soil b) dredged from the Hangzhou-Ningbo Canal, with different stabilizer/soil ratios were first shaped into cylinders 5 cm in both diameter and height. Then unconfined compression tests were conducted to measure the strength increase of the stabilized soil and determine the optimal stabilizer/soil mixing ratio. Results showed that the confined compression strength (q<sub>u</sub>) of both soil samples was effectively enhanced. When the mixing ratio a<sub>w</sub>≥4%, both of the two stabilized-soils can be used as subbase filling of road, and when a<sub>w</sub>≥10%, only stabilized soil a can be used as roadbase filling. So long as a<sub>w</sub><2%, the stress-strain (σ-ε) curves of the two stabilized soil samples were almost identical to that of the original soils, which were work hardening. As a<sub>w</sub>≥2%, σ-ε curves of the two stabilized soils turned into work softening. The curves also revealed that the stabilizer was capable of reducing the brittleness and increasing the plasticity of soil a, with, however, an opposite effect on soil b. Through field tests, the method was proved to be economically and technically feasible.https://www.academax.com/doi/10.3785/1008-9209.2005.02.0225soil stabilizerroadbasewater systemsdredgingexperiment |
| spellingShingle | SHAO Yu-fang Experimental study on transforming dredged silt from water systems into roadbase filling 浙江大学学报. 农业与生命科学版 soil stabilizer roadbase water systems dredging experiment |
| title | Experimental study on transforming dredged silt from water systems into roadbase filling |
| title_full | Experimental study on transforming dredged silt from water systems into roadbase filling |
| title_fullStr | Experimental study on transforming dredged silt from water systems into roadbase filling |
| title_full_unstemmed | Experimental study on transforming dredged silt from water systems into roadbase filling |
| title_short | Experimental study on transforming dredged silt from water systems into roadbase filling |
| title_sort | experimental study on transforming dredged silt from water systems into roadbase filling |
| topic | soil stabilizer roadbase water systems dredging experiment |
| url | https://www.academax.com/doi/10.3785/1008-9209.2005.02.0225 |
| work_keys_str_mv | AT shaoyufang experimentalstudyontransformingdredgedsiltfromwatersystemsintoroadbasefilling |