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Sustainable Fly Ash Based Geopolymer Binders: A Review on Compressive Strength and Microstructure Properties

Author

Listed:
  • Jyotirmoy Mishra

    (Department of Civil Engineering, Veer Surendra Sai University of Technology, Burla 768018, India)

  • Bharadwaj Nanda

    (Department of Civil Engineering, Veer Surendra Sai University of Technology, Burla 768018, India)

  • Sanjaya Kumar Patro

    (Department of Civil Engineering, Veer Surendra Sai University of Technology, Burla 768018, India)

  • R. S. Krishna

    (Department of Mechanical Engineering, Veer Surendra Sai University of Technology, Burla 768018, India)

Abstract

As a result of global warming, the pursuance of low-carbon, sustainable building materials has been prioritized. The development of geopolymer/cement-less binders can be considered an innovative and green way forward to minimize carbon footprint and tackle industrial waste material utilization. However, the chemical composition and properties of industrial waste-derived geopolymer binders varies considerably based on the chemical compositions of the source materials. This review paper presents a comprehensive understanding of the role of different chemical compositions (namely SiO 2 , Al 2 O 3 , CaO, Fe 2 O, and MgO) available in contemporary industrial wastes and the development of geopolymer binders. Subsequently, the compressive and microstructure properties of various FA-based geopolymer binders have been discussed to exhibit the feasibility of FA as a reliable source material. Significant findings and research gaps have been considered to aid future research works. Indeed, they provide guidelines for the commercial implementation of FA-based geopolymer binders as a low-carbon alternative to Portland cement.

Suggested Citation

  • Jyotirmoy Mishra & Bharadwaj Nanda & Sanjaya Kumar Patro & R. S. Krishna, 2022. "Sustainable Fly Ash Based Geopolymer Binders: A Review on Compressive Strength and Microstructure Properties," Sustainability, MDPI, vol. 14(22), pages 1-41, November.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:22:p:15062-:d:972285
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