The current need to move towards more sustainable technologies in the construction sector has promoted the investigation of using alternative materials in asphalt mixtures for pavements. Biomaterials, used as biobinders, have shown their potential as partial replacement of bitumen in asphalt mixtures as solution to decreasing the demand for fossil-fuel-based binders as well as CO2 emissions. However, more research is needed to increase the replacement of bitumen in asphalt mixtures. In this investigation,biobinders are used as full replacement of virgin bitumen and as recycling agent within asphalt mixtures with high Reclaimed Asphalt (RA) content. Blends of biobinders and RA binders, and bio-recycled asphalt mixtures, were produced, subjected to ageing and rheologically characterised. The results show that the rheological properties of binders’ blends seem adequate for their use, while the bio-recycled asphalt mixtures seem to have a faster ageing than conventional ones, hence their full-scale application still remains a concern.

Jimenez del Barco Carrion A., Lo Presti D., Chailleux E., Airey G.D. (2023). Rheological investigation on the ageing performance of bio-recycled asphalt binders and mixtures. ROAD MATERIALS AND PAVEMENT DESIGN, 24(S1), 538-553 [10.1080/14680629.2023.2181010].

Rheological investigation on the ageing performance of bio-recycled asphalt binders and mixtures

Lo Presti D.;
2023-04-01

Abstract

The current need to move towards more sustainable technologies in the construction sector has promoted the investigation of using alternative materials in asphalt mixtures for pavements. Biomaterials, used as biobinders, have shown their potential as partial replacement of bitumen in asphalt mixtures as solution to decreasing the demand for fossil-fuel-based binders as well as CO2 emissions. However, more research is needed to increase the replacement of bitumen in asphalt mixtures. In this investigation,biobinders are used as full replacement of virgin bitumen and as recycling agent within asphalt mixtures with high Reclaimed Asphalt (RA) content. Blends of biobinders and RA binders, and bio-recycled asphalt mixtures, were produced, subjected to ageing and rheologically characterised. The results show that the rheological properties of binders’ blends seem adequate for their use, while the bio-recycled asphalt mixtures seem to have a faster ageing than conventional ones, hence their full-scale application still remains a concern.
apr-2023
Jimenez del Barco Carrion A., Lo Presti D., Chailleux E., Airey G.D. (2023). Rheological investigation on the ageing performance of bio-recycled asphalt binders and mixtures. ROAD MATERIALS AND PAVEMENT DESIGN, 24(S1), 538-553 [10.1080/14680629.2023.2181010].
File in questo prodotto:
File Dimensione Formato  
3214928A.pdf

Solo gestori archvio

Tipologia: Versione Editoriale
Dimensione 5.2 MB
Formato Adobe PDF
5.2 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/594518
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 2
  • ???jsp.display-item.citation.isi??? 2
social impact