Reuse of soil-like material solidified by a biomass fly ash-based binder as engineering backfill material and its performance evaluation
文献类型：期刊论文
| 作者 | Qin, Zhifa1,2,3,4; Jin, Jiaxu1; Liu, Lei2,3,4; Zhang, Yi5; Du, Yuelin2,3,4,6; Yang, Yong7; Zuo, Shenghao8 |
| 刊名 | JOURNAL OF CLEANER PRODUCTION
 |
| 出版日期 | 2023-05-20 |
| 卷号 | 402期号:-页码:- |
| 关键词 | Landfill mining Soil-like material Biomass fly ash Mechanical properties Permeability Microstructure |
| ISSN号 | 0959-6526 |
| 英文摘要 | The reuse of soil-like material (SLM) obtained from landfill mining as engineering backfill materials contributes to sustainable waste management. In this paper, a new biomass fly ash-based binder (BB) containing biomass fly ash (BFA), carbide slag (CS), and phosphogypsum (PG) is designed to solidify the SLMs. The mechanical prop-erties, permeability, microstructure, and physicochemical characteristics of the BB-solidified SLM are compre-hensively characterized. The optimum proportion of ternary BBs consisting of 80% BFA, 15% CS, and 5% PG was determined through tests on paste samples. The different landfill depths of SLMs show significant variability in solidification/stabilization (S/S) effects due to their different physicochemical properties. The mechanical and permeability properties of BB-solidified SLM improve with the increasing BB content and the age of solidifica-tion. Microstructural and phase analyses indicated the formation of significant amounts of ettringite crystals and C-(A)-S-H gels were generated by the pozzolanic reaction, forming a stable and dense microstructure. The var-iations in pH and conductivity were correlated with the development of mechanical properties. Moreover, the organic matter content and leached heavy metal content of SLM2 and SLM3 after S/S treatment did not exceed the specified limits. This study can provide theoretical guidance for the resource utilization of the stabilized/ solidified SLMs. |
| 学科主题 | Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000956561700001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35485]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.School of Civil Engineering, Liaoning Technical University, Fuxin, Liaoning, 123000, China 2.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, Hubei, 430071, China 3.IRSM-CAS/HK Poly U Joint Laboratory on Solid Waste Science, Wuhan, Hubei, 430071, China 4.Hubei Province Key Laboratory of Contaminated Sludge and Soil Science and Engineering, Wuhan, Hubei, 430071, China 5.State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China 6.School of Mechanics and Engineering, Liaoning Technical University, Fuxin, 123000, China 7.Beijing Water Science and Technology Institute, Beijing Engineering Technique Research Center for Exploration and Utilization of Non-Conventional Water Resources and Water Use Efficiency, Beijing, 100048, China 8.School of Civil Engineering, Central South University, Changsha, Hunan, 410075, China |
| 推荐引用方式 GB/T 7714 | Qin, Zhifa,Jin, Jiaxu,Liu, Lei,et al. Reuse of soil-like material solidified by a biomass fly ash-based binder as engineering backfill material and its performance evaluation[J]. JOURNAL OF CLEANER PRODUCTION,2023,402(-):-. |
| APA | Qin, Zhifa.,Jin, Jiaxu.,Liu, Lei.,Zhang, Yi.,Du, Yuelin.,...&Zuo, Shenghao.(2023).Reuse of soil-like material solidified by a biomass fly ash-based binder as engineering backfill material and its performance evaluation.JOURNAL OF CLEANER PRODUCTION,402(-),-. |
| MLA | Qin, Zhifa,et al."Reuse of soil-like material solidified by a biomass fly ash-based binder as engineering backfill material and its performance evaluation".JOURNAL OF CLEANER PRODUCTION 402.-(2023):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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