Comparison of microbially induced carbonate precipitation with ordinary portland cement producing macroporous pervious concrete

Hassan Badiee, Mohsen Sabermahani, Armin Saeedi Javadi, Abdelmalek Bouazza

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Two kinds of binders, microbially induced carbonate precipitation (MICP) and ordinary portland cement (OPC), were used separately to produce macroporous pervious concrete (MPC). Furthermore, the macro- and micromechanical properties of these two binders and MPCs produced with them were compared. The results revealed a significant difference between the effective porosities of samples produced with MICP and OPC. In addition, the MPCs made with MICP had a higher elastic modulus in comparison to those made with OPC. Moreover, MPCs produced with MICP required less cement to achieve the same compressive strength as those produced with OPC. Finally, investigation of the boundary of MICP binder and aggregates revealed that there was no interfacial transition zone between the aggregate and the MICP binder as existed between OPC and aggregates.

Original languageEnglish
Article number04021070
Number of pages17
JournalJournal of Materials in Civil Engineering
Volume33
Issue number5
DOIs
Publication statusPublished - May 2021

Keywords

  • Elastic modulus
  • Interfacial transition zone
  • Microbially induced carbonate precipitation (MICP)
  • Microstructure
  • Nanoindentation
  • Porous concrete
  • Uniaxial testing

Cite this