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Investigating the Suitability of Waste Glass as a Supplementary Binder and Aggregate for Cement and Concrete

Author

Listed:
  • Maria Stefanidou

    (Laboratory of Building Materials, School of Civil Engineering, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece)

  • Fotini Kesikidou

    (Laboratory of Building Materials, School of Civil Engineering, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece)

  • Stavroula Konopisi

    (Laboratory of Building Materials, School of Civil Engineering, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece)

  • Thanasis Vasiadis

    (iGlass S.A., 574 00 Thessaloniki, Greece)

Abstract

Multiple studies propose the incorporation of waste glass into concrete as a sustainable solution covering many aspects, including preserving natural resources, utilizing waste materials and reducing concrete cost. In the present study, the suitability of different types of flat glass waste from a local industry as a supplementary binder or aggregate was examined. Different protocols were followed based on the European and American Standards. The chemical composition, density, mineralogy and salts content of the samples were tested. For the use of the glass waste as a binder, the strength activity and pozzolanicity indexes were measured according to EN 450-1 and ASTM C593, respectively. For the use of the glass waste as aggregates, the granulometry and the flakiness and shape indexes of the samples were determined. Alkali-silica reaction, freeze-thaw and magnesium sulfate tests for the aggregates were also performed. It can be concluded that waste glass has a medium pozzolanic behavior and can be used as a supplementary cementitious material. Nonetheless, the chemical composition, as well as the purity, of waste glass play an important role for the binder and aggregate in the mixture.

Suggested Citation

  • Maria Stefanidou & Fotini Kesikidou & Stavroula Konopisi & Thanasis Vasiadis, 2023. "Investigating the Suitability of Waste Glass as a Supplementary Binder and Aggregate for Cement and Concrete," Sustainability, MDPI, vol. 15(4), pages 1-15, February.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:4:p:3796-:d:1073703
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