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Recycling Clay Waste from Excavation, Demolition, and Construction: Trends and Challenges

Author

Listed:
  • Liliana Carolina Hernández García

    (CCComposites Laboratory, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellin 050010, Colombia)

  • Sergio Neves Monteiro

    (Military Institute of Engineering—IME, Praça General Tibúrcio 80, Urca, Rio de Janeiro 22290-270, RJ, Brazil)

  • Henry A. Colorado Lopera

    (CCComposites Laboratory, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellin 050010, Colombia)

Abstract

The recycling of clay waste from construction debris highly depends on the chemical and mineralogical composition of the waste. Clays and clay minerals are known to be among marginal construction waste, representing an interesting opportunity and platform to produce other low-cost and low-carbon materials due to their possibilities for functional material design, such as adsorbents, drug delivery, catalysts and photocatalysts, and nanocomposites. The present review analyzes a wide variety of mechanisms for encapsulating organic and inorganic species between the layers of clay minerals. Through the compilation of advances in acid activation, exchange of inorganic cations, intercalation, and pillarization, new applications for clay materials are generated, paving the way to a nanometric world with functional, magnetic, adsorption, and catalytic capabilities. New trends are consolidated in the reuse of recycled clays in infrastructure projects, such as hydraulic concrete, water purification, soil fertility, pigments and paints, food packaging and storage, and ceramic appliances. It is concluded that clay waste is suitable to reuse in many industrial products and construction materials, enabling a reduction in the consumption of raw materials.

Suggested Citation

  • Liliana Carolina Hernández García & Sergio Neves Monteiro & Henry A. Colorado Lopera, 2024. "Recycling Clay Waste from Excavation, Demolition, and Construction: Trends and Challenges," Sustainability, MDPI, vol. 16(14), pages 1-20, July.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:14:p:6265-:d:1440441
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