Arid
DOI10.1155/2018/3463298
Experimental Study on Wind Erosion Resistance and Strength of Sands Treated with Microbial-Induced Calcium Carbonate Precipitation
Wang, Zhaoyu1; Zhang, Nan2; Ding, Jinhua3; Lu, Chen1; Jin, Yong1
通讯作者Zhang, Nan
来源期刊ADVANCES IN MATERIALS SCIENCE AND ENGINEERING
ISSN1687-8434
EISSN1687-8442
出版年2018
英文摘要

Wind erosion phenomenon is commonly encountered in desert areas, which is harmful to engineering constructions and environment. This study proposed an innovative microbial-induced calcium carbonate precipitation (MICP) technique to reinforce sands for mitigating natural hazards caused by the wind erosion. A series of small-scale laboratory experiments were performed to evaluate wind erosion resistance of MICP-treated sands with different treatment cycles. The spraying method was used to treat sand specimens, and unconfined compression (UCC) strength tests were also conducted to assess the performance of the MICP technique. Experimental results revealed that the bulk density of treated sand was slightly increased with the number of MICP treatment cycles. Additionally, the wind erosion rate of treated sands was significantly decreased, and the UCC strength was increased (maximum to 4 MPa) with the number of treatment cycles, which was mainly attributed to the bonding effect from the microbial-induced CaCO3 crystals among sand particles based on the scanning electron microscopy (SEM) analyses. Such effect also facilitated to form a hard protection layer on top of the sand specimen in order to improve the wind erosion resistance of MICP-treated sands. This technique provides an alternative method to mitigate and prevent the aggravation of desertification.


类型Article
语种英语
国家Peoples R China ; USA
收录类别SCI-E
WOS记录号WOS:000430604300001
WOS类目Materials Science, Multidisciplinary
WOS研究方向Materials Science
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/207211
作者单位1.Yancheng Inst Technol, Coll Civil Engn, Yancheng 224051, Jiangsu, Peoples R China;
2.Univ Texas Arlington, Dept Civil Engn, Arlington, TX 76019 USA;
3.Jiangsu Univ Sci & Technol, Coll Civil Engn, Zhenjiang 212003, Jiangsu, Peoples R China
推荐引用方式
GB/T 7714
Wang, Zhaoyu,Zhang, Nan,Ding, Jinhua,et al. Experimental Study on Wind Erosion Resistance and Strength of Sands Treated with Microbial-Induced Calcium Carbonate Precipitation[J],2018.
APA Wang, Zhaoyu,Zhang, Nan,Ding, Jinhua,Lu, Chen,&Jin, Yong.(2018).Experimental Study on Wind Erosion Resistance and Strength of Sands Treated with Microbial-Induced Calcium Carbonate Precipitation.ADVANCES IN MATERIALS SCIENCE AND ENGINEERING.
MLA Wang, Zhaoyu,et al."Experimental Study on Wind Erosion Resistance and Strength of Sands Treated with Microbial-Induced Calcium Carbonate Precipitation".ADVANCES IN MATERIALS SCIENCE AND ENGINEERING (2018).
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