An investigation into the uses of trommel fınes produced from recyclıng of constructıon and demolition waste

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Abstract

Waste recycling companies segregate construction demolition and excavation (CD&E) waste to extract recyclates, but still, large quantities are landfilled. This includes a potentially useful smaller fraction known as trommel fines (TF). This paper presents potential uses of TF as building materials and horticultural media. A favourable 43.5 MPa concrete compressive strength was observed for 10 % replacement of Sand with TF, while a combination of 50/50(m/m) brickearth/TF soil composite achieved a compressive strength of 3.41 MPa, representing negligible reduction compared to controls. A 70-days tomato growth trial revealed that 20 % amendment with compost can provide sufficient nutrients for satisfactory plant and root growth.
Original languageEnglish
Article number130579
Number of pages11
JournalConstruction and Building Materials
Volume369
Early online date2 Feb 2023
DOIs
Publication statusPublished - 10 Mar 2023

Keywords

  • Construction demolition and excavation waste
  • Trommel fines
  • Concrete
  • Soil composite
  • Growth trial

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