Journal Published Online: 27 February 2025
Volume 53, Issue 2

Exploring the Effects of Reclaimed Asphalt Pavement on Hot-Mix Asphalt Performance and the Use of Blending Charts to Predict Them: A Laboratory Investigation

CODEN: JTEVAB

Abstract

This laboratory-based research validates bitumen blending charts for asphalt mix performance, focusing on volumetric properties, compactability, rutting, thermal cracking resistance, and viscoelastic behaviors. The study examines asphalt mixtures with varying reclaimed asphalt pavement (RAP) content (0 to 100 %), adhering to MUN-10 Quebec mix specifications for municipal road construction. Two bitumen content scenarios are considered: one assumes 100 % of RAP bitumen is mobilizable, fully contributing to mix performance, whereas the other assumes 60 % mobilizable RAP bitumen. The study confirms the accuracy of blending charts in predicting mix performance and assesses RAP bitumen properties without solvent extraction. The recycled bitumen ratio is used as a predictive tool, enhancing understanding in pavement engineering and construction. The findings indicate that most bitumen from RAP appears to be mobilizable.

Author Information

Bérubé, Marc-André
Construction Department, École de Technologie Supérieure, Montréal, Quebec, Canada
Lamothe, Sébastien
Construction Department, École de Technologie Supérieure, Montréal, Quebec, Canada
Bilodeau, Kevin
Research and Development, Bauval Inc., Boucherville, Quebec, Canada
Carter, Alan
Construction Department, École de Technologie Supérieure, Montréal, Quebec, Canada
Pages: 16
Price: $25.00
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Details
Stock #: JTE20240236
ISSN: 0090-3973
DOI: 10.1520/JTE20240236