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Particle Morphology of Calcareous Sand and MICP-Treated Efficiency

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Sustainable Construction Resources in Geotechnical Engineering (IC-CREST 2023)

Part of the book series: Lecture Notes in Civil Engineering ((LNCE,volume 448))

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Abstract

Microbial-induced calcium carbonate precipitation (MICP) is a promising approach to improve the geotechnical engineering properties of granular soils. MICP has advantages of environment friendliness, low disturbance, low cost, etc. Calcareous sand is a special type of granular soil, and its particles are highly irregular and angular. In this paper. a series of experimental tests were undertaken to investigate the influence of soil particle morphology on the efficiency of the MICP process in calcareous sand. Effects of the concentration of bacteria solution and grouting method were quantified and compared in terms of calcium carbonate (CaCO3) content and unconfined compressive strength (UCS). The results show that fractal dimension of the calcareous sand particle ranges from 1.08 to 1.21. Period of 10–35 h after activation is the logarithmic growth stage of the bacteria. Single-phase grouting is better than two-phase grouting method. The UCS of the MICP-treated calcareous sand specimens is about 300–700 kPa and it has an exponential distribution with the CaCO3 content.

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Authors and Affiliations

  1. State Key Laboratory of Intelligent Construction and Healthy Operation & Maintenance of Deep Underground Engineering, School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou, 221116, Jiangsu, China

    Bo Wang & Zhiqiang Liu

  2. Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Ha’erbin, 150080, Heilongjiang, China

    Longwei Chen

Authors
  1. Bo Wang
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  2. Zhiqiang Liu
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  3. Longwei Chen
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Corresponding author

Correspondence to Bo Wang .

Editor information

Editors and Affiliations

  1. Kyushu University, Fukuoka, Japan

    Hemanta Hazarika

  2. University of Cambridge, Cambridge, UK

    Stuart Kenneth Haigh

  3. National Institute of Technology Karnataka Surathkal, Mangalore, India

    Babloo Chaudhary

  4. Shimizu Corporation, Tokyo, Japan

    Masanori Murai

  5. Kyushu University, Fukuoka, Japan

    Suman Manandhar

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© 2024 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

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Wang, B., Liu, Z., Chen, L. (2024). Particle Morphology of Calcareous Sand and MICP-Treated Efficiency. In: Hazarika, H., Haigh, S.K., Chaudhary, B., Murai, M., Manandhar, S. (eds) Sustainable Construction Resources in Geotechnical Engineering. IC-CREST 2023. Lecture Notes in Civil Engineering, vol 448. Springer, Singapore. https://doi.org/10.1007/978-981-99-9227-0_3

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  • DOI: https://doi.org/10.1007/978-981-99-9227-0_3

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-99-9226-3

  • Online ISBN: 978-981-99-9227-0

  • eBook Packages: EngineeringEngineering (R0)

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