Reuse of a contaminated soil stabilized by a low-carbon binder as roadway subgrade material and mechanical performance evaluation
文献类型：期刊论文
| 作者 | Feng, Ya-Song1,4; Zhou, Shi-Ji1; Zhou, Annan5; Xia, Wei-Yi1,3; Li, Jiang-Shan2; Wang, Shui4; Du, Yan-Jun1 |
| 刊名 | ENGINEERING GEOLOGY
 |
| 出版日期 | 2022-06-01 |
| 卷号 | 303期号:-页码:- |
| 关键词 | Stabilization Solidification Mixed contaminants of nickel and zinc Contaminated soil Low-carbon binder Mechanical performance evaluation Roadway subgrade material |
| ISSN号 | 0013-7952 |
| 英文摘要 | This study evaluates the feasibility of utilizing a hydroxyapatite-based binder (termed as SPC) stabilized contaminated soil in a decommissioned electroplating industry site as roadway subgrade material, where SPC is a mixture of superphosphate (SP) and calcium oxide (CaO) powders in a proportion of 3:1 by dry weight basis. Traditional Portland cement (PC) was used as a control binder for comparison purpose. The leachability of the stabilized soil was evaluated at 28 d. The engineering properties including dry density, soil resistance, and dynamic deflection modulus, were investigated at 1 d, 7 d, 28 d, and 600 d after construction. The results showed that stabilization using SPC is effective for immobilizing target contaminants of nickel (Ni) and zinc (Zn) in the contaminated soil and improving its mechanical properties including dry density, soil resistance, and dynamic deflection modulus. The SPC binder exhibited superior performance to PC in term of higher immobilization effectiveness of Ni and Zn, shorter curing time, and lower carbon footprint. The SPC-stabilized soil showed inferior strength, stiffness, and water sensitivity to those of the PC-stabilized soil. |
| 学科主题 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000818763200004 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35389]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Jiangsu Key Laboratory of Urban Underground Engineering and Environmental Safety, Institute of Geotechnical Engineering, Southeast University, Nanjing 211189, China 2.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China 3.Jiangsu Environmental Engineering Technology Co., Ltd., Jiangsu Environmental Protection Group Co., Ltd., Nanjing 210019, China 4.Jiangsu Province Engineering Research Center of Soil and Groundwater Pollution Prevention and Control, Jiangsu Key Laboratory of Environmental Engineering, Jiangsu Provincial Academy of Environmental Science, Nanjing 210036, China 5.Civil and Infrastructure Engineering, School of Engineering, Royal Melbourne Institute of Technology (RMIT), Melbourne, Vic 3000, Australia |
| 推荐引用方式 GB/T 7714 | Feng, Ya-Song,Zhou, Shi-Ji,Zhou, Annan,et al. Reuse of a contaminated soil stabilized by a low-carbon binder as roadway subgrade material and mechanical performance evaluation[J]. ENGINEERING GEOLOGY,2022,303(-):-. |
| APA | Feng, Ya-Song.,Zhou, Shi-Ji.,Zhou, Annan.,Xia, Wei-Yi.,Li, Jiang-Shan.,...&Du, Yan-Jun.(2022).Reuse of a contaminated soil stabilized by a low-carbon binder as roadway subgrade material and mechanical performance evaluation.ENGINEERING GEOLOGY,303(-),-. |
| MLA | Feng, Ya-Song,et al."Reuse of a contaminated soil stabilized by a low-carbon binder as roadway subgrade material and mechanical performance evaluation".ENGINEERING GEOLOGY 303.-(2022):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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