PMID- 38541424 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240330 IS - 1996-1944 (Print) IS - 1996-1944 (Electronic) IS - 1996-1944 (Linking) VI - 17 IP - 6 DP - 2024 Mar 9 TI - Experimental Study on the Wind Erosion Resistance of Aeolian Sand Solidified by Microbially Induced Calcite Precipitation (MICP). LID - 10.3390/ma17061270 [doi] LID - 1270 AB - Microbially induced calcite precipitation (MICP) is an emerging solidification method characterized by high economic efficiency, environmental friendliness, and durability. This study validated the reliability of the MICP sand solidification method by conducting a small-scale wind tunnel model test using aeolian sand solidified by MICP and analyzing the effects of wind velocity (7 m/s, 10 m/s, and 13 m/s), deflation angle (0 degrees , 15 degrees , 30 degrees , and 45 degrees ), wind erosion cycle (1, 3, and 5), and other related factors on the mass loss rate of solidified aeolian sand. The microstructure of aeolian sand was constructed by performing mesoscopic and microscopic testing based on X-ray diffraction analysis (XRD), Fourier-transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). According to the test results, the mass loss rate of solidified aeolian sand gradually increases with the increase in wind velocity, deflation angle, and wind erosion cycle. When the wind velocity was 13 m/s, the mass loss rate of the aeolian sand was only 63.6%, indicating that aeolian sand has excellent wind erosion resistance. CaCO(3) crystals generated by MICP were mostly distributed on sand particle surfaces, in sand particle pores, and between sand particles to realize the covering, filling, and cementing effects. FAU - Qu, Jing AU - Qu J AD - Shaanxi Key Laboratory of Safety and Durability of Concrete Structures, Xijing University, Xi'an 710123, China. FAU - Li, Gang AU - Li G AD - Shaanxi Key Laboratory of Safety and Durability of Concrete Structures, Xijing University, Xi'an 710123, China. FAU - Ma, Bin AU - Ma B AD - Shaanxi Key Laboratory of Safety and Durability of Concrete Structures, Xijing University, Xi'an 710123, China. FAU - Liu, Jia AU - Liu J AUID- ORCID: 0000-0002-2392-6629 AD - Shaanxi Key Laboratory of Safety and Durability of Concrete Structures, Xijing University, Xi'an 710123, China. FAU - Zhang, Jinli AU - Zhang J AUID- ORCID: 0000-0002-6188-9750 AD - State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China. FAU - Liu, Xing AU - Liu X AD - Shaanxi Key Laboratory of Safety and Durability of Concrete Structures, Xijing University, Xi'an 710123, China. FAU - Zhang, Yijia AU - Zhang Y AD - Shaanxi Key Laboratory of Safety and Durability of Concrete Structures, Xijing University, Xi'an 710123, China. LA - eng GR - 2021JM-535/Natural Science Basic Research Program of Shaanxi Province/ GR - 23JS061/Scientific Research Program Funded by Education Department of Shaanxi Provincial Government/ PT - Journal Article DEP - 20240309 PL - Switzerland TA - Materials (Basel) JT - Materials (Basel, Switzerland) JID - 101555929 PMC - PMC10972104 OTO - NOTNLM OT - MICP OT - aeolian sand OT - model test OT - solidified mechanism OT - wind erosion resistance COIS- The authors declare no conflicts of interest. EDAT- 2024/03/28 06:45 MHDA- 2024/03/28 06:46 PMCR- 2024/03/09 CRDT- 2024/03/28 01:13 PHST- 2024/02/06 00:00 [received] PHST- 2024/03/04 00:00 [revised] PHST- 2024/03/07 00:00 [accepted] PHST- 2024/03/28 06:46 [medline] PHST- 2024/03/28 06:45 [pubmed] PHST- 2024/03/28 01:13 [entrez] PHST- 2024/03/09 00:00 [pmc-release] AID - ma17061270 [pii] AID - materials-17-01270 [pii] AID - 10.3390/ma17061270 [doi] PST - epublish SO - Materials (Basel). 2024 Mar 9;17(6):1270. doi: 10.3390/ma17061270.