Abstract
Microbe cement, as a new green binder, relies on microbial-induced calcium carbonate precipitation and could consolidate loose particles to a whole body (bio-sandstone). The mechanical properties of sandstone cemented by microbe cement for different numbers of injections were investigated. The results show that the compressive strength of bio-sandstones increases with injection number: the average compressive strength of bio-sandstones could be up to 6·1 MPa after 14 injections of microbe cement. In addition, the rate of increase of compressive strength decreases with an increase in the number of injections. The microstructure of bio-sandstones with different numbers of injections was analysed by means of scanning electron microscopy. The results indicate that the microstructure of the bio-sandstones became increasingly dense with an increase in microbe cement injections.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
