Improving the impermeability and mechanical properties of the Yellow River sediment with polymer gels
文献类型：期刊论文
| 作者 | Wu, Yuhang1,2; Wan, Yong2; He, Xingxing2,3; Cai, Yangyang2; Xu, Wennian1; Zhao, Bingqin1; Shen, Yuanyang1,2 |
| 刊名 | CASE STUDIES IN CONSTRUCTION MATERIALS
 |
| 出版日期 | 2024-07-01 |
| 卷号 | 20页码:15 |
| 关键词 | Polyanionic cellulose Dredged sediment Hydraulic conductivity Shear strength Microstructure |
| ISSN号 | 2214-5095 |
| DOI | 10.1016/j.cscm.2024.e03246 |
| 英文摘要 | Natural clay is the most common material used for the veneer cover soil in solid waste landfill because of its good impermeability and mechanical stability. However, it is often difficult to obtain in the arid regions of northern China and an alternative material is urgently needed. This study utilized polyanionic cellulose (PAC) to modify the dredged sediment from the Yellow River (DSYR) to replace the clay used as the veneer cover soil in solid waste landfills. Some engineering properties of PAC-modified dredged sediment (PMDS), including compaction, permeability, shear strength, and drying shrinkage, were investigated by considering the factors of PAC dosage and compaction degree (CD). Microscopic tests were conducted to analyze the improvement mechanism of DSYR engineering properties by PAC modification. The results indicated that the hydraulic conductivity of PMDS decreased obviously with the PAC dosage or compaction degree. The addition of PAC significantly improved the shear strength of DSYR, along with an increase in cohesion but a decrease in the internal friction angle. During drying, there was no apparent horizontal displacement for PMDS, and the vertical displacement was less than 0.17 mm. Microscopic tests revealed that the dosage of PAC and compaction degree mainly affected the contact and pore distribution characteristics between soil particles, thereby changing the impermeability and mechanical properties of DSYR. |
| 资助项目 | Major science and technology program of Inner Mongolia[2021ZD0007] ; National Natural Science Foundation of China[52209134] ; National Natural Science Foundation of China[52322810] ; Open Research Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences[SKLGME021030] ; Youth Science Foundation of Jiangsu Province of China[BK20220230] ; National Natural Science Fund for Excellent Young Scientists[52322810] |
| WOS研究方向 | Construction & Building Technology ; Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001285807800001 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/42226]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | He, Xingxing |
| 作者单位 | 1.China Three Gorges Univ, Key Lab Geol Hazards Gorges Reservoir Area 3, Minist Educ, Yichang 443002, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Jiangsu Inst Zoneco Co Ltd, Yixing 214200, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Yuhang,Wan, Yong,He, Xingxing,et al. Improving the impermeability and mechanical properties of the Yellow River sediment with polymer gels[J]. CASE STUDIES IN CONSTRUCTION MATERIALS,2024,20:15. |
| APA | Wu, Yuhang.,Wan, Yong.,He, Xingxing.,Cai, Yangyang.,Xu, Wennian.,...&Shen, Yuanyang.(2024).Improving the impermeability and mechanical properties of the Yellow River sediment with polymer gels.CASE STUDIES IN CONSTRUCTION MATERIALS,20,15. |
| MLA | Wu, Yuhang,et al."Improving the impermeability and mechanical properties of the Yellow River sediment with polymer gels".CASE STUDIES IN CONSTRUCTION MATERIALS 20(2024):15. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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