Preparation and characteristics of modified red mud-municipal solid waste incineration bottom ash binder
文献类型：期刊论文
| 作者 | Sun, Yuehui4,5; Li, Jiang-shan3,5; Chen, Xin3,5; Huang, Xiao5; Guo, Mingzhi1; Wan, Yong5; Lu, Longzhao2,5; Chen, Zhen3,5; Ma, Zihan5 |
| 刊名 | JOURNAL OF BUILDING ENGINEERING
 |
| 出版日期 | 2022-04-01 |
| 卷号 | 46页码:19 |
| 关键词 | Red mud Municipal solid waste incineration bottom ash Thermal modification Binder Hydration reaction |
| DOI | 10.1016/j.jobe.2021.103760 |
| 英文摘要 | In this paper, red mud (RM) and municipal solid waste incineration bottom ash (MSWIBA) were thermal modified to improve the pozzolanic activity. A binder was prepared with modified RM and MSWIBA by activation of calcium hydroxide (CH). The hydration and mechanical behavior of the prepared binder was systematically studied. The results indicated that the calcium-rich RM (CRM) had a higher pozzolanic activity after modification than the iron-rich RM. The hydrates formed in the modified RM-MSWIBA-CH system at ambient temperature were essentially Ca-Al hydrotalcite and C-A-S-H gel. The hydration reaction in the pastes mainly concentrated in the early stages, whereas the high amount of CH was not conducive to this process. Moreover, the RM-MSWIBA-CH system could be easily carbonized in the atmosphere. The maximum compressive strength of paste was 5.18 MPa with a fluidity of 85.5 mm when the proportion of CRM to MSWIBA was 3:2 (with 20% CH), and the sample with proportion of CRM to MSWIBA was 2:3 (with 10% CH) had the highest fluidity (97.5 mm) with a compressive strength of 2.42 MPa. The developed binder with low CRM content holds great potential for applications as a controlled lowstrength material (CLSM). The overall findings from this study provide new insights in low carbon and green recycling of RM and MSWIBA with wide application potential in construction industry. |
| 资助项目 | International Partnership Program of Chinese Academy of Sciences[115242KYSB20200002] ; Funds for International Cooperation and Exchange of the National Natural Science Foundation of China[51861165104] ; CAS Pioneer Hundred Talents Program in China ; Open Research Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences[Z020012] |
| WOS研究方向 | Construction & Building Technology ; Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000729552800001 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/30960]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Li, Jiang-shan; Wan, Yong |
| 作者单位 | 1.Hohai Univ, Coll Mech & Mat, Nanjing 213022, Peoples R China 2.Wuhan Univ Sci & Technol, Sch Civil Engn, Wuhan 430081, Peoples R China 3.IRSM CAS HK PolyU Joint Lab Solid Waste Sci, Wuhan 430071, Peoples R China 4.Liaoning Tech Univ, Sch Civil Engn, Fuxing 123000, Liaoning, Peoples R China 5.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Yuehui,Li, Jiang-shan,Chen, Xin,et al. Preparation and characteristics of modified red mud-municipal solid waste incineration bottom ash binder[J]. JOURNAL OF BUILDING ENGINEERING,2022,46:19. |
| APA | Sun, Yuehui.,Li, Jiang-shan.,Chen, Xin.,Huang, Xiao.,Guo, Mingzhi.,...&Ma, Zihan.(2022).Preparation and characteristics of modified red mud-municipal solid waste incineration bottom ash binder.JOURNAL OF BUILDING ENGINEERING,46,19. |
| MLA | Sun, Yuehui,et al."Preparation and characteristics of modified red mud-municipal solid waste incineration bottom ash binder".JOURNAL OF BUILDING ENGINEERING 46(2022):19. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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