Curing effects of fly ash-based geopolymer on soils around mining areas: properties and mechanisms
文献类型：期刊论文
| 作者 | Zhao, Suyun2; Xiang, Yuwei2; Li, Shiyao2; Wang, Yi2; Lu, Haijun3; Hou, Haobo1,2; Zhou, Min1,2 |
| 刊名 | ENVIRONMENTAL EARTH SCIENCES
 |
| 出版日期 | 2022-09-01 |
| 卷号 | 81期号:18页码:- |
| ISSN号 | 1866-6280 |
| 关键词 | Fly ash Geopolymer Tailings pond Mechanical property Structural property |
| 英文摘要 | Soil pollution in mining areas has become a popular topic in the field of environment science. This study aims to solidify contaminated soil and reduce environmental pressure in mining areas. In view of the soil around a manganese tailing pond in Yunnan, China, fly ash was used as the geopolymer raw material to solidify the soil under the condition of alkali excitation, and the performance parameters of the solidified product were determined through mechanical and structural property tests. The former showed that the mechanical properties were gradually improved with the increase in distance between the soil and the mining center and the geopolymer content. Compressive and shearing strengths were up to 2159 and 205 kPa, respectively. XRD showed that the crystal phase significance of the soil decreased after the addition of geopolymer. SEM shows that the local density exists when the geopolymer content is low, and the solidified body forms a high-integrity multilayer structure when the geopolymer content is high. The infrared spectrum showed that the increase in geopolymer content is beneficial to the integrity of the structure and the improvement of performance. These results indicate that fly ash geopolymer (FAG) has good feasibility in the stabilization of trace metals in the soil of mining areas. |
| 学科主题 | Environmental Sciences & Ecology ; Geology ; Water Resources |
| 语种 | 英语 |
| 出版者 | SPRINGER |
| WOS记录号 | WOS:000854761900002 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/34984]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Hubei Environmental Remediation Material Engineering Technology Research Center, Wuhan, China 2.School of Resource and Environmental Sciences, Wuhan University, Wuhan, China 3.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, China |
| 推荐引用方式 GB/T 7714 | Zhao, Suyun,Xiang, Yuwei,Li, Shiyao,et al. Curing effects of fly ash-based geopolymer on soils around mining areas: properties and mechanisms[J]. ENVIRONMENTAL EARTH SCIENCES,2022,81(18):-. |
| APA | Zhao, Suyun.,Xiang, Yuwei.,Li, Shiyao.,Wang, Yi.,Lu, Haijun.,...&Zhou, Min.(2022).Curing effects of fly ash-based geopolymer on soils around mining areas: properties and mechanisms.ENVIRONMENTAL EARTH SCIENCES,81(18),-. |
| MLA | Zhao, Suyun,et al."Curing effects of fly ash-based geopolymer on soils around mining areas: properties and mechanisms".ENVIRONMENTAL EARTH SCIENCES 81.18(2022):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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