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Sustainable green concrete: investigating the influence of recycled aggregates, polypropylene fibres, and nano clay additives on physical and mechanical properties

Author

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  • Pouria Baghaee Asadabadee
  • Babak Rouhi Broujeni
  • Amir Gholampour

Abstract

In this study, the eco-friendly concrete has been prepared by utilising construction and demolition (C&D) waste as aggregates. The effect of polypropylene fibre (PolyF) and nano clay (NC) were employed as additives. Subsequently, both were combined (PolyF-NC) to optimise the physical and mechanical properties of the green concrete (GC). Fourier transform infra-Red (FTIR), and scanning electron microscopy (SEM), were employed to analyse the morphology of the GC. At the optimised point, PolyF and NC revealed 76.7% and 82.5% increases in compressive strength, respectively. Additionally, PolyF improved the tensile strength 1.5 times compared to the reference sample. Lastly, the PolyF-NC increased the compressive and tensile strength by 12% and 2.1 times, respectively. Consequently, the mechanical properties enhanced by adding 1.8 kg/m3 NC and 9.45 kg/m3 PolyF to the GC. Based on results, using PolyF and NC additives enhances green concrete's physical properties with C&D waste aggregates.

Suggested Citation

  • Pouria Baghaee Asadabadee & Babak Rouhi Broujeni & Amir Gholampour, 2024. "Sustainable green concrete: investigating the influence of recycled aggregates, polypropylene fibres, and nano clay additives on physical and mechanical properties," International Journal of Environmental Technology and Management, Inderscience Enterprises Ltd, vol. 27(4/5/6), pages 265-278.
    • Handle: RePEc:ids:ijetma:v:27:y:2024:i:4/5/6:p:265-278
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