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Influence of Recycling Processes on Properties of Fine Recycled Concrete Aggregates (FRCA): An Overview

Author

Listed:
  • Eduardo Kloeckner Sbardelotto

    (Programa de Pós-Graduação em Engenharia Civil (PGECiv), Universidade Estadual de Londrina (UEL), Rodovia Celso Garcia Cid, PR-445, km 380, Londrina 86057-970, PR, Brazil
    Laboratório Nacional de Engenharia Civil (LNEC), Av. do Brasil, 101, 1700-066 Lisbon, Portugal)

  • Karyne Ferreira dos Santos

    (Sustainable Construction Materials Association (C5Lab), Edifício Central Park, Rua Central Park 6, 2795-242 Linda-a-Velha, Portugal)

  • Isabel Milagre Martins

    (Laboratório Nacional de Engenharia Civil (LNEC), Av. do Brasil, 101, 1700-066 Lisbon, Portugal)

  • Berenice Martins Toralles

    (Programa de Pós-Graduação em Engenharia Civil (PGECiv), Universidade Estadual de Londrina (UEL), Rodovia Celso Garcia Cid, PR-445, km 380, Londrina 86057-970, PR, Brazil)

  • Manuel Gomes Vieira

    (Laboratório Nacional de Engenharia Civil (LNEC), Av. do Brasil, 101, 1700-066 Lisbon, Portugal)

  • Catarina Brazão Farinha

    (Laboratório Nacional de Engenharia Civil (LNEC), Av. do Brasil, 101, 1700-066 Lisbon, Portugal
    Sustainable Construction Materials Association (C5Lab), Edifício Central Park, Rua Central Park 6, 2795-242 Linda-a-Velha, Portugal
    Civil Engineering Research and Innovation for Sustainability (CERIS), Instituto Superior Técnico, University of Lisbon, Av. Rovisco Pais 1, 1049-001 Lisbon, Portugal)

Abstract

Concrete waste recycling processes involve multiple stages, equipment, and procedures which produce Fine Recycled Concrete Aggregates (FRCA) for use in construction. This research aims at performing a comprehensive overview of the recycling technologies, recycling processes, and normative requirements to produce high-quality FRCA and to investigate the influence of these processes on their physical properties. The properties investigated were the particle size distribution (PSD), water absorption, oven-dry density, and adhered paste. The correlations between these properties were also investigated. The results indicate that the recycling processes with the highest potential for producing high-quality aggregates demand jaw crusher and impact crusher combinations. These processes are better suited for achieving FRCA with the desired particle size distribution and oven-dry density. However, water absorption and adhered paste, which are critical factors for obtaining high-quality FRCA, seem to be more dependent on the original material than on the recycling process.

Suggested Citation

  • Eduardo Kloeckner Sbardelotto & Karyne Ferreira dos Santos & Isabel Milagre Martins & Berenice Martins Toralles & Manuel Gomes Vieira & Catarina Brazão Farinha, 2024. "Influence of Recycling Processes on Properties of Fine Recycled Concrete Aggregates (FRCA): An Overview," Waste, MDPI, vol. 2(2), pages 1-17, April.
    • Handle: RePEc:gam:jwaste:v:2:y:2024:i:2:p:8-152:d:1372297
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