Strength improvement of high organic dredged soil by solidification/oxidization synergistic method
文献类型：期刊论文
| 作者 | He, Xingxing2,3; Wan, Yong2; Chen, Yijun2; Tan, Xun4; Wang, Shiquan1; Liu, Xiaoli3; Xue, Qiang5
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| 刊名 | CANADIAN GEOTECHNICAL JOURNAL
 |
| 出版日期 | 2024-10-10 |
| 页码 | 14 |
| 关键词 | dredged soil high organic matter solidification/oxidization unconfined compressive strength microscopic mech- anism |
| ISSN号 | 0008-3674 |
| DOI | 10.1139/cgj-2023-0134 |
| 英文摘要 | Soil organic matter (SOM) has always been one of the critical factors affecting the solidification of dredged soil. This study proposes a solidification/oxidization synergistic method for treating high organic dredged soil (DS). Three solid oxidants, i.e. , sodium persulfate (PS), sodium percarbonate (PC), and potassium ferrate (PF), were added to DS in cooperation with cement, respectively. The results show that all three oxidants showed a good degradation effect on SOM and had the optimal dosage, which increased gradually with cement content (Ac) when used with cement. Under the optimal dosage of oxidant and Ac = 15%, PS and PC can improve the unconfined compression strength (UCS) of cemented DS (CDS) at 60 days of curing to nearly 4 times compared with that without oxidant, while PF can only increase the 60d-UCS to 1.5 times. In addition, the influence mechanism of different oxidants on the UCS of CDS was analyzed based on microscopic tests, proving that the three oxidants can not only degrade the SOM in CDS but also participate in the hydration reaction of cement. It is feasible to use proper amounts of PC and PS in combination with cement to solidify high organic soil. |
| 资助项目 | National Natu- ral Science Foundation of China[52209134] ; National Natu- ral Science Foundation of China[52200180] ; Major science and technology program of Inner Mongolia[2021ZD0007] ; Open Research Fund of State Key Laboratory of Geomechanics and Geotechnical En- gineering; Institute of Rock and Soil Mechanics, Chinese Academy of Sciences[SKLGME021030] ; Youth Sci- ence Foundation of Jiangsu Province of China[BK20220230] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001334217100001 |
| 出版者 | CANADIAN SCIENCE PUBLISHING |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/42822]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Wan, Yong; Xue, Qiang |
| 作者单位 | 1.Suzhou Univ, Sch Resources & Civil Engn, Suzhou 234000, Anhui, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Tsinghua Univ, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China 4.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China 5.Wuhan CAS ITRI Solid Waste Resources Co Ltd, Wuhan 430074, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Xingxing,Wan, Yong,Chen, Yijun,et al. Strength improvement of high organic dredged soil by solidification/oxidization synergistic method[J]. CANADIAN GEOTECHNICAL JOURNAL,2024:14. |
| APA | He, Xingxing.,Wan, Yong.,Chen, Yijun.,Tan, Xun.,Wang, Shiquan.,...&Xue, Qiang.(2024).Strength improvement of high organic dredged soil by solidification/oxidization synergistic method.CANADIAN GEOTECHNICAL JOURNAL,14. |
| MLA | He, Xingxing,et al."Strength improvement of high organic dredged soil by solidification/oxidization synergistic method".CANADIAN GEOTECHNICAL JOURNAL (2024):14. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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