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<p>Permeability of sand is susceptible to the morphology of pores, prominently influenced by the particle shape and cementation. Microbially induced calcite precipitation (MICP) is a method with considerable potentiality for depressing the permeability of sand. In this study, we discharged a range of permeability tests to examine the effect of particle morphology on the permeability characteristics of spherical and angular glass sand mixtures treated by MICP. We found that the permeability and the calcium carbonate content of the glass sands treated by MICP increased as overall regularity enhanced. For the uncemented glass sands, the difference in contact modes between glass sand particles caused by particle morphology is the main factor affecting the permeability. At the same time, particle morphology can lead to dissimilarities in the form of the precipitated calcium carbonate, thereby affecting the permeability of the biocemented glass sands. This study furnishes an experimental perspective for comprehending the influence of the particle morphology on the permeability of biocemented sands.</p>

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Effect of particle morphology on the permeability of biocemented glass sands

  • 期刊论文

  • 发表日期：

    2025年12月2日

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  • Yang Xiao,
  • Aqiang Liu,
  • Hao Cui,
  • Qingyun Fang,
  • Hanlong Liu,
  • Musharraf Zaman

摘要

Permeability of sand is susceptible to the morphology of pores, prominently influenced by the particle shape and cementation. Microbially induced calcite precipitation (MICP) is a method with considerable potentiality for depressing the permeability of sand. In this study, we discharged a range of permeability tests to examine the effect of particle morphology on the permeability characteristics of spherical and angular glass sand mixtures treated by MICP. We found that the permeability and the calcium carbonate content of the glass sands treated by MICP increased as overall regularity enhanced. For the uncemented glass sands, the difference in contact modes between glass sand particles caused by particle morphology is the main factor affecting the permeability. At the same time, particle morphology can lead to dissimilarities in the form of the precipitated calcium carbonate, thereby affecting the permeability of the biocemented glass sands. This study furnishes an experimental perspective for comprehending the influence of the particle morphology on the permeability of biocemented sands.