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Investigations into magnesium oxide carbon sequestration foamed concrete: Mechanical performance, microstructure and environmental benefits

Construction and Building Materials, ISSN: 0950-0618, Vol: 421, Page: 135679
2024
  • 1
    Citations
  • 0
    Usage
  • 7
    Captures
  • 1
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    1
    • Citation Indexes
      1
  • Captures
    7
  • Mentions
    1
    • News Mentions
      1
      • News
        1

Most Recent News

New Building and Construction Study Findings Have Been Reported by Investigators at Southeast University (Investigations Into Magnesium Oxide Carbon Sequestration Foamed Concrete: Mechanical Performance, Microstructure and Environmental Benefits)

2024 MAY 27 (NewsRx) -- By a News Reporter-Staff News Editor at Daily Real Estate News -- Investigators discuss new findings in Building and Construction.

Article Description

This paper proposes an innovative preparation measure for magnesium oxide (MgO)-based foamed concrete. Carbon dioxide (CO 2 ) foam has been introduced into the sample as a substitute for air foam, resulting in a novel formulation referred to as MgO carbon sequestration foamed concrete (MCFC). This innovation facilitates the setting and hardening of MgO-based foamed concrete under ambient conditions. Basic mechanical properties were tested at three different ages. At the age of 28 days, the resultant MCFC has demonstrated mechanical performance comparable to conventional Portland cement-based foamed concrete including unconfined compressive strength and stain-stress behavior. Through SEM NMR and X-ray CT, the MCFC sample exhibited an increasingly compact matrix and an evolving distribution of pore structure as time progressed. Furthermore, a comprehensive life cycle assessment has revealed that MCFC has the potential to reduce carbon emissions by up to 50% when compared to conventional cement-based foamed concrete. The results imply that MCFC presents itself as a viable alternative to conventional PC-based foamed concrete, offering equivalent mechanical performance while delivering superior environmental advantages for engineering applications.

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