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Sustainable Management of Autoclaved Aerated Concrete Wastes in Gypsum Composites

Author

Listed:
  • Fabio Iucolano

    (Department of Chemical, Materials and Production Engineering (DICMaPI), University of Naples Federico II, 80125 Naples, Italy)

  • Assunta Campanile

    (Department of Chemical, Materials and Production Engineering (DICMaPI), University of Naples Federico II, 80125 Naples, Italy)

  • Domenico Caputo

    (Department of Chemical, Materials and Production Engineering (DICMaPI), University of Naples Federico II, 80125 Naples, Italy)

  • Barbara Liguori

    (Department of Chemical, Materials and Production Engineering (DICMaPI), University of Naples Federico II, 80125 Naples, Italy)

Abstract

Promoting the use of gypsum and gypsum-based materials in construction is a successful strategy from an environmental point of view; it allows a lower energy demand with a sensible reduction in carbon dioxide emissions. At the same time, the manufacturing of gypsum products can represent an interesting sector to redirect and manage the large amount of autoclaved aerated concrete (AAC) waste. In this paper a sustainable application of AAC granulate waste in gypsum-based building materials was proposed. The intrinsic compatibility derived their chemical composition and allowed it to partially substitute raw gypsum with the waste up to 30% without affecting the functional and structural properties of the final product. Physical characterization and sound absorption data confirmed that the addition of AAC waste does not significantly alter the typical porosity of the gypsum composite. Finally, all of the composites reached mechanical performances suitable for different building application as gypsum plaster.

Suggested Citation

  • Fabio Iucolano & Assunta Campanile & Domenico Caputo & Barbara Liguori, 2021. "Sustainable Management of Autoclaved Aerated Concrete Wastes in Gypsum Composites," Sustainability, MDPI, vol. 13(7), pages 1-10, April.
    • Handle: RePEc:gam:jsusta:v:13:y:2021:i:7:p:3961-:d:529172
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    References listed on IDEAS

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    1. Accorsi, Riccardo & Manzini, Riccardo & Pini, Chiara & Penazzi, Stefano, 2015. "On the design of closed-loop networks for product life cycle management: Economic, environmental and geography considerations," Journal of Transport Geography, Elsevier, vol. 48(C), pages 121-134.
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    Cited by:

    1. Gajanayake Mudalige Pradeep Kumara & Ken Kawamoto, 2021. "Steel Slag and Autoclaved Aerated Concrete Grains as Low-Cost Adsorbents to Remove Cd 2+ and Pb 2+ in Wastewater: Effects of Mixing Proportions of Grains and Liquid-to-Solid Ratio," Sustainability, MDPI, vol. 13(18), pages 1-16, September.

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