Maximizing the pozzolanic potential of superfine iron tailings for low-carbon stabilization: Application of high-calcium geopolymer
文献类型：期刊论文
| 作者 | Wei, Mingli1,2; Wei, Wei1,3; Li, Yuan1,3; Liu, Lei1,4,5; Zhong, Feng6; Xue, Qiang1,4
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| 刊名 | RESOURCES CONSERVATION AND RECYCLING
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| 出版日期 | 2023-11-01 |
| 卷号 | 198页码:12 |
| 关键词 | One-part waste-based geopolymer Hydration reaction Pozzolanic activity Physicochemical properties Pore structure |
| ISSN号 | 0921-3449 |
| DOI | 10.1016/j.resconrec.2023.107198 |
| 英文摘要 | Superfine iron tailings (5-75 mu m) are difficult to be reused with traditional binders. The reaction behavior of newly developed high-calcium geopolymer (ASF), the activation effect of the ASF on the pozzolanic potential of tailings, and the application effectiveness of the ASF-stabilized mixtures have been discussed. The results show that highly cross-linked calcium aluminosilicate hydrates were the main hydration products, and there were some crystal products, e.g., stratlingite, ettringite, and crystalline calcium silicate hydrate. The ASF can activate and release magnesium ions in superfine tailings to form magnesium-based products. Second, the cumulative pore volume of stabilized tailings was reduced by 24.4% with the dosage increase of ASF binder from 3% to 8%. Finally, the strength of 8% ASF-stabilized tailings increased from 1.83 MPa to 3.44 MPa (7 d to 28 d). The alkalinity of ASF-stabilized tailings was weaker than that of the cement-based counterpart (similar to 0.6), reducing environmental pressure during application. |
| 资助项目 | Special Fund for Basic Research on Scientific Instruments of the National Natural Science Foundation of China[51827814] ; National Natural Science Foundation of China[41977254] ; Natural Science Foundation of Jiangsu Province[BK2023022776] ; Hubei Province Yangtze River Water Ecological Environmental Protection Research Project[2022LHYJ02050604] ; Foundation for Distinguished Young Scholars of Hubei Province[2021CFA096] ; Youth Science Foundation of Jiangsu Province of China[KB20220230] ; Key Plan Project of Science and Technology of Wenzhou[ZS2021001] |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001080837800001 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/39656]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Wei, Wei; Li, Yuan |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Jiangsu Inst Zoneco Co Ltd, Yixing 214200, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Hubei Prov Key Lab Contaminated Sludge & Soil Sci, Wuhan 430071, Peoples R China 5.IRSM CAS HK PolyU Joint Lab Solid Waste Sci, Wuhan 430071, Peoples R China 6.Hubei Univ, Fac Resources & Environm Sci, Wuhan 430062, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wei, Mingli,Wei, Wei,Li, Yuan,et al. Maximizing the pozzolanic potential of superfine iron tailings for low-carbon stabilization: Application of high-calcium geopolymer[J]. RESOURCES CONSERVATION AND RECYCLING,2023,198:12. |
| APA | Wei, Mingli,Wei, Wei,Li, Yuan,Liu, Lei,Zhong, Feng,&Xue, Qiang.(2023).Maximizing the pozzolanic potential of superfine iron tailings for low-carbon stabilization: Application of high-calcium geopolymer.RESOURCES CONSERVATION AND RECYCLING,198,12. |
| MLA | Wei, Mingli,et al."Maximizing the pozzolanic potential of superfine iron tailings for low-carbon stabilization: Application of high-calcium geopolymer".RESOURCES CONSERVATION AND RECYCLING 198(2023):12. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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