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  4. Multi-recycling of polypropylene fibre reinforced concrete: Influence of recycled aggregate properties on new concrete
 
research article

Multi-recycling of polypropylene fibre reinforced concrete: Influence of recycled aggregate properties on new concrete

Tosic, Nikola
•
Martinez, Dorca Peralta
•
Hafez, Hisham  
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September 5, 2022
Construction And Building Materials

Herein, an investigation of multi-generational recyclability of polypropylene fibre reinforced concrete (PPFRC) was performed. The parent concretes were produced with 0 and 6 kg/m(3) of polypropylene fibres. After recycling, the obtained coarse recycled concrete aggregates (RCAs) were used in new concrete with 0 and 6 kg/m(3) of polypropylene fibres, repeating for three generations always with the same quantities of fibres. Properties of RCA, the mechanical properties of recycled aggregate concrete, the recovery rate of polypropylene fibres and the content of fibres embedded within the RCA were measured. The results of the study show that RCA obtained by PPFRC recycling offers significant benefits to new concrete production. This is achieved through the recovered fibres reintroduced into the new concrete, as well as through the fibres embedded in the recycled aggregates, leading to increased residual tensile strength.

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Type
research article
DOI
10.1016/j.conbuildmat.2022.128458
Web of Science ID

WOS:000872954800039

Author(s)
Tosic, Nikola
•
Martinez, Dorca Peralta
•
Hafez, Hisham  
•
Reynvart, Igor
•
Ahmad, Muneer
•
Liu, Guanzhi
•
de la Fuente, Albert
Date Issued

2022-09-05

Publisher

ELSEVIER SCI LTD

Published in
Construction And Building Materials
Volume

346

Article Number

128458

Subjects

Construction & Building Technology

•

Engineering, Civil

•

Materials Science, Multidisciplinary

•

Engineering

•

Materials Science

•

recycled concrete

•

fiber reinforced concrete

•

residual strength

•

water absorption

•

density

•

macro-synthetic fibre

•

recycled fibre

•

mix design

•

behavior

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LMC  
Available on Infoscience
November 21, 2022
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/192377
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