Anti-disintegration property of red soil treated with building gypsum powder
文献类型：期刊论文
| 作者 | Sun, Yinlei2; Li, Zhen2; Lin, Xuan-Chen2; Du, Qing-Ru2; Zou, Xi2; Zhang, Xianwei1 |
| 刊名 | APPLIED CLAY SCIENCE
 |
| 出版日期 | 2025-09-01 |
| 卷号 | 273页码:17 |
| 关键词 | Disintegration Red soil improvement Calcium silicon composite Wet and dry cycle Microstructure Grey relational analysis method |
| ISSN号 | 0169-1317 |
| DOI | 10.1016/j.clay.2025.107832 |
| 英文摘要 | Red soil exhibits a tendency to soften and disintegrate upon exposure to water, posing significant geological hazards and engineering challenges. In the present study, building gypsum powder (BGP) was employed as a modifier to systematically investigate its influence on the resistance to disintegration of red soil under the influence of various alkaline admixtures. Utilizing a custom-built dry-wet cycle disintegration tester, in conjunction with microscopic analysis techniques including scanning electron microscopy (SEM), X-ray diffraction (XRD), XRF (X-ray Fluorescence) and mercury intrusion porosimetry (MIP), the enhancement mechanism of BGP on the microstructure of red soil was thoroughly investigated. The findings indicate that an increase in the dosage of BGP markedly enhances the resistance to disintegration of red soil, particularly when the dosage surpasses 5 %. Under the influence of various admixtures, BGP-modified red soil undergoes chemical processes, including ion exchange, crystallization, and volcanic ash reaction, leading to a significant reduction in porosity, an increase in density, and a marked improvement in the water stability of red soil. The dry-wet cycle test provided further confirmation that the admixture markedly improved the water stability of BGP-modified red soil. Furthermore, the quantitative relationship between the microstructural parameters of the modified red soil and its disintegration properties was established through the application of grey correlation analysis and fractal theory, elucidating the crucial role of pore perimeter and area in the resistance to disintegration of red soil. This research endeavors to establish a scientific foundation for the prevention and mitigation of debris flows, landslides, and other disasters in red soil regions, and to propose novel strategies for the selection of geotechnical enhancement materials. |
| 资助项目 | National Natural Science Foundation of China[42102303] ; National Natural Science Foundation of China[42372313] ; National Natural Science Foundation of China[42177148] ; Natural Science Foundation of Yunnan Province, China[202401CF070174] ; Xingdian Talent Support Program[C619300A130] ; Practical Innovation Project of Postgraduate Students in the Professional Degree of Yunnan University[ZC-23234031] ; Ministry of Water Resources[wx20241100518] ; Open Research Fund of Key Laboratory of Flood & Drought Disaster Defense |
| WOS研究方向 | Chemistry ; Materials Science ; Mineralogy |
| 语种 | 英语 |
| WOS记录号 | WOS:001482157900001 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/36095]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Zhang, Xianwei |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Yunnan Univ, Sch Architecture & Planning, Kunming 650500, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Yinlei,Li, Zhen,Lin, Xuan-Chen,et al. Anti-disintegration property of red soil treated with building gypsum powder[J]. APPLIED CLAY SCIENCE,2025,273:17. |
| APA | Sun, Yinlei,Li, Zhen,Lin, Xuan-Chen,Du, Qing-Ru,Zou, Xi,&Zhang, Xianwei.(2025).Anti-disintegration property of red soil treated with building gypsum powder.APPLIED CLAY SCIENCE,273,17. |
| MLA | Sun, Yinlei,et al."Anti-disintegration property of red soil treated with building gypsum powder".APPLIED CLAY SCIENCE 273(2025):17. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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