In this paper, a new and simple approach to estimate the rheological properties of Reclaimed Asphalt Pavement (RAP) binder is proposed to overcome the limitations of the conventional extraction procedure. This method is based on Dynamic Shear Rheometer tests performed on mortars composed of RAP fine fraction and virgin binder, together with a new back-calculation solution. The properties of the bitumi- nous blends of virgin and RAP binders are obtained with a modified Nielsen model. The Voigt model is then successfully used to estimate complex modulus and phase angle of the RAP binder from the prop- erties of the back-calculated binder blend. This procedure would prevent the need of RAP binder extrac- tions to determine its properties, which is time-consuming and might modify the actual binder characteristics.

Riccardi, C., Jiménez del Barco Carrión, A., Lo Presti, D., Cannone Falchetto, A., Losa, M., Wistuba, M. (2017). A new procedure to determine the rheological properties of RAP binder and corresponding bituminous blends. CONSTRUCTION AND BUILDING MATERIALS, 154, 361-372 [10.1016/j.conbuildmat.2017.07.204].

A new procedure to determine the rheological properties of RAP binder and corresponding bituminous blends

Lo Presti, D.;
2017-01-01

Abstract

In this paper, a new and simple approach to estimate the rheological properties of Reclaimed Asphalt Pavement (RAP) binder is proposed to overcome the limitations of the conventional extraction procedure. This method is based on Dynamic Shear Rheometer tests performed on mortars composed of RAP fine fraction and virgin binder, together with a new back-calculation solution. The properties of the bitumi- nous blends of virgin and RAP binders are obtained with a modified Nielsen model. The Voigt model is then successfully used to estimate complex modulus and phase angle of the RAP binder from the prop- erties of the back-calculated binder blend. This procedure would prevent the need of RAP binder extrac- tions to determine its properties, which is time-consuming and might modify the actual binder characteristics.
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85026775132&doi=10.1016/j.conbuildmat.2017.07.204&partnerID=40&md5=63ebb0bf4ed5f1995283a0243bbf88fd
Riccardi, C., Jiménez del Barco Carrión, A., Lo Presti, D., Cannone Falchetto, A., Losa, M., Wistuba, M. (2017). A new procedure to determine the rheological properties of RAP binder and corresponding bituminous blends. CONSTRUCTION AND BUILDING MATERIALS, 154, 361-372 [10.1016/j.conbuildmat.2017.07.204].
File in questo prodotto:
File Dimensione Formato  
new procedure to determine the rheological properties of RAP binder.pdf

Solo gestori archvio

Tipologia: Versione Editoriale
Dimensione 1.45 MB
Formato Adobe PDF
1.45 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/10447/417414
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 3
  • ???jsp.display-item.citation.isi??? 3
social impact