Climate Change Data Portal
DOI | 10.1007/s11629-020-6308-8 |
Freeze-thaw resistance of eco-material stabilized loess | |
Li, Guo-yu; Hou, Xin; Zhou, Yu; Ma, Wei; Mu, Yan-hu; Chen, Dun; Tang, Li-yun | |
通讯作者 | Zhou, Y ; Mu, YH (通讯作者),Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Da Xinganling Observat & Res Stn Frozen Ground En, Jiagedaqi 165000, Heilongjiang, Peoples R China. ; Zhou, Y ; Mu, YH (通讯作者),Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China. ; Zhou, Y ; Mu, YH (通讯作者),Univ Chinese Acad Sci, Beijing 100049, Peoples R China. |
发表日期 | 2021 |
ISSN | 1672-6316 |
EISSN | 1993-0321 |
起始页码 | 794 |
结束页码 | 805 |
卷号 | 18期号:3 |
英文摘要 | In the Loess Plateau in Northern China, repeated freeze-thaw (FT) cycles deteriorate the strength and structure of loess as a foundation soil, resulting in the instability or failure of supporting structure. Lignosulfonate is an eco-material, utilized as an effective and nontraditional stabilizer to improve the engineering properties of metastable soils. A series of laboratory tests, including unconfined compression tests, cyclic loading-unloading tests and scanning electron microscopy, on calcium lignosulfonate (CL)- and sodium lignosulfonate (SL)-stabilized loess were performed to investigate the stabilization effect, deterioration mechanisms of the FT cycles, and the resistance to FT cycles. Two traditional stabilizers, quicklime (QL) and sodium silicate (SS), were selected, and the engineering properties of QL- and SS-stabilized loess were compared with those of CL- and SL-stabilized loess. The results showed that the strength values of CL- and SL-stabilized loess specimens decreased by 34.2% and 50% respectively, after 20 FT cycles, whereas those of the traditionally SS- and QL- stabilized specimens decreased by 85.3% and 82.87%, respectively. The elastic moduli of SL- and QL-stabilized loess specimens decreased by 22.1% and 92.0%, respectively. The mean energy dissipations of nontraditionally treated specimens also decreased significantly less than those of traditionally treated specimens. Overall, the results showed CL and SL had better stabilization effects on engineering properties of loess than QL and SS, and their stabilized loess specimens exhibited stronger resistance to FT cycles. The study findings demonstrated the significant potential of lignosulfonate for extensive application in cold loess areas. |
关键词 | FROZEN GROUND REGIONSENGINEERING PROPERTIESMECHANICAL-PROPERTIESCOLLAPSE BEHAVIORCOMPACTED LOESSFLY-ASHSOILSTRENGTHLIMELIGNOSULFONATE |
英文关键词 | Freeze thaw cycle; Lignosulfonate; Loess mechanics; Eco-material; Cold region engineering; Scanning electron microscopy |
语种 | 英语 |
WOS研究方向 | Environmental Sciences & Ecology |
WOS类目 | Environmental Sciences |
WOS记录号 | WOS:000611474500002 |
来源期刊 | JOURNAL OF MOUNTAIN SCIENCE |
来源机构 | 中国科学院西北生态环境资源研究院 |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/254311 |
作者单位 | [Li, Guo-yu; Zhou, Yu; Ma, Wei; Mu, Yan-hu; Chen, Dun] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Da Xinganling Observat & Res Stn Frozen Ground En, Jiagedaqi 165000, Heilongjiang, Peoples R China; [Li, Guo-yu; Zhou, Yu; Ma, Wei; Mu, Yan-hu; Chen, Dun] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China; [Li, Guo-yu; Tang, Li-yun] Xian Univ Sci & Technol, Coll Architecture & Civil Engn, Xian 710054, Peoples R China; [Li, Guo-yu; Zhou, Yu; Ma, Wei; Mu, Yan-hu; Chen, Dun] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Hou, Xin] Yuexiu Property Co Ltd, Guangzhou 510623, Peoples R China |
推荐引用方式 GB/T 7714 | Li, Guo-yu,Hou, Xin,Zhou, Yu,et al. Freeze-thaw resistance of eco-material stabilized loess[J]. 中国科学院西北生态环境资源研究院,2021,18(3). |
APA | Li, Guo-yu.,Hou, Xin.,Zhou, Yu.,Ma, Wei.,Mu, Yan-hu.,...&Tang, Li-yun.(2021).Freeze-thaw resistance of eco-material stabilized loess.JOURNAL OF MOUNTAIN SCIENCE,18(3). |
MLA | Li, Guo-yu,et al."Freeze-thaw resistance of eco-material stabilized loess".JOURNAL OF MOUNTAIN SCIENCE 18.3(2021). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。