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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 REGIONS ENGINEERING PROPERTIES MECHANICAL-PROPERTIES COLLAPSE BEHAVIOR COMPACTED LOESS FLY-ASH SOIL STRENGTH LIME LIGNOSULFONATE
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).