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Microscopic Pores of Microbial Mineralized Aeolian Sandy Soil Materials under the Action of Nuclear Magnetic Resonance
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Yu GAO1, 2, 3, Jia-wei XING1, Xiao-rong WANG1, 2, 3, *, Hong-wei HAN1, Cu-yao FAN1
Science Technology and Engineering | 2025, 25(5) : 2066 - 2073
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Science Technology and Engineering | 2025, 25(5): 2066-2073
• Papers·Architectural Science •
Microscopic Pores of Microbial Mineralized Aeolian Sandy Soil Materials under the Action of Nuclear Magnetic Resonance
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Yu GAO1, 2, 3, Jia-wei XING1, Xiao-rong WANG1, 2, 3, *, Hong-wei HAN1, Cu-yao FAN1
Affiliations
  • 1 School of Civil Engineering, Inner Mongolia University of Technology, Hohhot 010051, China
  • 2 Inner Mongolia Engineering Research Center of Geological Technology and Geotechnical Engineering, Hohhot 010051, China
  • 3 Key Laboratory of Geological Hazards and Geotechnical Engineering Defense in Sandy and Drought Regions at Universities of Inner Mongolia Autonomous Region, Inner Mongolia University of Technology, Hohhot 010051, China
Published: 2025-02-18 doi: 10.12404/j.issn.1671-1815.2309815
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In order to explore the durability of microbially induced calcite precipitation(MICP) technology to improve the durability of aeolian sandy soil materials, 0.08% polymer absorbent resin (MICP+A) and 0.37% xanthan gum (MICP+B) were used to improve the traditional MICP materials. The microstructure of different cycles of high and low temperature cycle and ultraviolet irradiation was studied by nuclear magnetic resonance technology, and the durability of mineralized sandy soil materials was investigated. The results show that the porosity of both MICP+A and MICP+B materials increases with the increase of cycling cycles. In 20 cycles of high and low temperature cycling tests and 15 cycles of ultraviolet irradiation tests, the MICP+A material shows good stability, and the porosity increment decreases by about 1.8 times and 1.1 times, respectively, compared with the conventional MICP material. Under high and low temperature cycling and ultraviolet irradiation, the crystal structure of calcium carbonate is altered and the percentage of medium-sized pores in the soil increases, causing the 2nd peak of the T2 spectra of all three materials to be higher than the pre-test peak. The test shows that the polymer water-absorbing resin can improve the stability performance of the traditional MICP specimens, and this study provides a basic experimental basis for the engineering application of microbial mineralized geotechnical materials in the treatment of desert areas.

biogeotechnical rock  /  microbial mineralization of sandy soil materials  /  MICP  /  NMR experiment  /  high and low temperature cycle  /  ultraviolet irradiation test
Yu GAO, Jia-wei XING, Xiao-rong WANG, Hong-wei HAN, Cu-yao FAN. Microscopic Pores of Microbial Mineralized Aeolian Sandy Soil Materials under the Action of Nuclear Magnetic Resonance[J]. Science Technology and Engineering, 2025 , 25 (5) : 2066 -2073 . DOI: 10.12404/j.issn.1671-1815.2309815
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Year 2025 volume 25 Issue 5
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Article Info
doi: 10.12404/j.issn.1671-1815.2309815
  • Receive Date：2023-12-12
  • Online Date：2025-07-29
  • Published：2025-02-18
Article Data
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History
  • Received：2023-12-12
  • Revised：2024-11-12
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Affiliations
    1 School of Civil Engineering, Inner Mongolia University of Technology, Hohhot 010051, China
    2 Inner Mongolia Engineering Research Center of Geological Technology and Geotechnical Engineering, Hohhot 010051, China
    3 Key Laboratory of Geological Hazards and Geotechnical Engineering Defense in Sandy and Drought Regions at Universities of Inner Mongolia Autonomous Region, Inner Mongolia University of Technology, Hohhot 010051, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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