Assessment of the binder blending in bituminous mixtures based on the development of an innovative sustainable infrared imaging methodology

Autor: A. Michelet, V. Barragan-Montero, L. Boulange, Vincent Gaudefroy, Sabine Vassaux, A. Pévère, Virginie Mouillet
Přispěvatelé: Matériaux pour Infrastructure de Transport (IFSTTAR/MAST/MIT), PRES Université Nantes Angers Le Mans (UNAM)-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR), Groupe Eiffage, Centre d'Etudes et d'Expertise sur les Risques, l'Environnement, la Mobilité et l'Aménagement - Equipe-projet DIMA (Cerema Equipe-projet DIMA), Centre d'Etudes et d'Expertise sur les Risques, l'Environnement, la Mobilité et l'Aménagement (Cerema), Perkin Elmer France, Laboratoire de Bioingénierie et NanoSciences (LBN), Université Montpellier 1 (UM1)-Université de Montpellier (UM)
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Materials science
BITUMEN
RECYCLING
Infrared
INFRAROUGE
020209 energy
Strategy and Management
MELANGE
02 engineering and technology
BITUME
Raw material
7. Clean energy
Industrial and Manufacturing Engineering
12. Responsible consumption
law.invention
SOLVENT-FREE
[SPI.MAT]Engineering Sciences [physics]/Materials
RECYCLAGE (MATER)
Rheology
RECYCLAGE DES MATERIAUX
law
Homogeneity (physics)
0202 electrical engineering
electronic engineering
information engineering
NOVEL SUSTAINABLE METHODOLOGY
Process engineering
INFRARED IMAGING MICROSCOPY
Distillation
Dissolution
0505 law
General Environmental Science
Renewable Energy
Sustainability and the Environment
business.industry
SOLVANT
05 social sciences
RAYONNEMENT INFRAROUGE
Homogeneous
Asphalt
MICROSCOPIE
050501 criminology
DEVELOPPEMENT DURABLE
BLENDING
business
LIANT
Zdroj: Journal of Cleaner Production
Journal of Cleaner Production, Elsevier, 2019, 215, pp. 821-828. ⟨10.1016/j.jclepro.2019.01.105⟩
ISSN: 0959-6526
DOI: 10.1016/j.jclepro.2019.01.105⟩
Popis: Reclaimed Asphalt (RA) is more and more used in the road recycling industry because it allows reducing the consumption in non-renewable raw materials such as virgin bitumen which comes from the petroleum distillation. As bitumen is oxidation-sensitive, some technical issues are however raised about the mix design and the binder blending between the aged and virgin binders. Particularly, the question lies on the ability of the virgin binder to mix with the RA aged binder to form a homogeneous product in defined manufacturing conditions. To answer this question, most of road studies extract with a chlorinated solvent the total bituminous binder from the asphalt mixture to characterize then oxidation or rheological properties. However, this solvent extraction technique is based on a complete binder dissolution which may alter physicochemical properties of the mixture. The objective is also to develop a solvent-free and non-destructive methodology to in situ assess the binder blending in manufactured mixtures. Using infrared imaging ATR microscopy, homogeneity is defined from spatial distributions in carbonyl functions and the methodology is developed on modeled binder mixtures. The influence of the aged binder temperature and mixing time is then investigated on the binder blending. Results show that high and close temperatures between binders are necessary but not sufficient to obtain a homogeneous mixture whereas a longer mixing time improves the binder blending. The developed chemomap methodology also allows demonstrating the influence of manufacturing process parameters on the binder blending in road asphalt mixtures. At the binder scale, the present work constitutes an interesting, rapid and economical approach to optimize the manufacturing parameters of the asphalt mixture design. The innovative infrared imaging methodology also opens perspectives to gain a better knowledge about molecular distributions and homogeneity of any hydrocarbon mixture which constitutes an essential criterion for the performance of more sustainable materials.
Databáze: OpenAIRE
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