Bio-cementation improvement via CaCO₃ cementation pattern and crystal polymorph: A review

Due to environmental and sustainable concerns, the green bio-cementation technique has received growing attentions from both the academic world and engineering field. One of its essential applications is ground improvement, since the precipitated calcium carbonate (CaCO₃) crystals in bio-cementation process could act as the solid bridges to cement separated particles together and enhance the mechanical behaviors of soils. Although researchers have realized the significance of the precipitated CaCO₃ bondings and microstructures of bio-cemented materials, only few studies focus on improving the bio-cementation efficiency from a microscopic perspective. Consequently, in this paper, an integrative review is adopted to collect, review, and analyze the published studies and literature, indicating that the CaCO₃ cementation pattern and crystal polymorph are the two principal aspects that reflect the bio-cementation efficiency to a certain extent. Subsequently, the major factors affecting the CaCO₃ cementation pattern and crystal polymorph are comprehensively discussed. In a nutshell, the conducted discussions in this paper attempt to provide noteworthy insights into bio-cementation improvement, which may potentially inspire future studies.

• Record URL:
  https://doi.org/10.1016/j.conbuildmat.2021.123478
• Record URL:
  http://www.sciencedirect.com/science/article/pii/S0950061821012381
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/09500618
• Supplemental Notes:
  • © 2021 Elsevier Ltd. All rights reserved. Abstract reprinted with permission of Elsevier.
• Authors:
  • Xu, Xichen
  • Guo, Hongxian
  • Li, Meng
  • Deng, Xuejie
• Publication Date: 2021-8-23

Language

• English

Media Info

• Media Type: Web
• Features: Figures; References; Tables;
• Serial:
  • Construction and Building Materials
  • Volume: 297
  • Issue Number: 0
  • Publisher: Elsevier
  • ISSN: 0950-0618
  • Serial URL: http://www.sciencedirect.com/science/journal/09500618?sdc=1

Subject/Index Terms

• TRT Terms: Bonding; Calcium carbonate; Crystallization; Literature reviews; Polymorphism (Chemistry)
• Subject Areas: Highways; Materials; Pavements;

Filing Info

• Accession Number: 01776957
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 23 2021 3:23PM