Role of fungal-mediated mineralization in biocementation of sand and its improved compressive strength

Chaolin Fang, Deepika Kumari, Xuejiao Zhu, Varenyam Achal*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

The process of microbially induced calcite precipitation (MICP) is widely used recently in construction engineering in improving compressive strength, durability and self-healing of building materials and culture heritages. However, most of researches to date have concentrated on prokaryotic systems despite of associated limitation of urease-positive bacteria in biocementation. In the present study, we exploited the role of one urease-positive fungal strain Penicillium chrysogenum CS1 for the first time in biocementation of sand in column to produce sandstone of significant compressive strength. Further, the research provided understanding of the involved mechanisms and advantages of fungal-mediated production of calcite in cementing sand granules over same process using bacteria.

Original languageEnglish
Pages (from-to)216-220
Number of pages5
JournalInternational Biodeterioration and Biodegradation
Volume133
DOIs
StatePublished - Sep 2018
Externally publishedYes

Keywords

  • Biocementation
  • Calcite
  • Compressive strength
  • Fungi
  • Sand
  • Urease

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