Description du projet
Ouvrir la voie au bio-recyclage de l’asphalte
Les revêtements en asphalte, qui équipent les routes, les aéroports et les parkings, peuvent être intégralement réutilisés. Toutefois, un obstacle de taille subsiste: la dépendance à l’égard de l’utilisation de matériaux issus de combustibles fossiles comme liants, agents de recyclage et polymères de synthèse. Le projet REcircularPAV, financé par l’UE, étudiera la faisabilité de l’utilisation de biomatériaux (utilisés conjointement avec le recyclage des revêtements en asphalte) afin de minimiser l’utilisation d’agrégats vierges et de bitume de pétrole pour les revêtements en asphalte. La technologie sera étudiée en laboratoire et mise à l’échelle afin d’évaluer les problèmes opérationnels lors de la fabrication et de la pose du produit. En tant que projet de formation par la recherche, REcircularPAV concevra des mélanges bitumeux circulaire rentables pour le revêtement des routes. Les mélanges seront évalués en termes de tenue au vieillissement et d’impact environnemental et économique.
Objectif
"A methodology to implement sustainability in road pavement engineering is offered by the circular economy main principle of replacing the conventional linear model for product design and consumption with a circular one ""based on sharing, leasing, reuse, repair, refurbishment and recycling, in an (almost) closed loop, where products and the materials they contain are highly valued"". In this sense, the road pavement sector offers a great opportunity, in fact the asphalt material is generally considered 100% reusable, however, despite several efforts towards the use of total asphalt recycling have been made over the past 30 years, a massive constraint still exists: the dependance on using fossil fuel-based materials as binders, recycling agents and engineered polymers. It’s within this context that part of this consortium (UNIPA, EIFFAGE) have participated in the first-of-its-kind project “BioRePavation 2015 - 2018” (http://biorepavation.ifsttar.fr) aiming at investigating the feasibility of using bio-materials, used along with asphalt pavement recycling, to reduce the use of virgin aggregates and petroleum bitumen for road pavements. BioRePavation showed that bio-asphalt mixtures can have even superior performances to conventional asphalt mixtures, however they still include products derived from oil and are two times more expensive. These limitations can be overcome with REcircularPAV, a training-through-research project aiming at engineering cost-effective circular asphalt mixtures for road pavement in a fossil fuel-free society, incorporating very high-content of reclaimed asphalt together with end-of-life tyres and bio-based materials. The technology will be investigated at laboratory level and upscaled to assess operational issues during plant manufacturing and laying processes. Once the mixtures are engineered, predicted performances will be assessed in terms of mechanical properties, aging behavior and environmental and economical impact."
Champ scientifique
- engineering and technologyenvironmental engineeringwaste managementwaste treatment processesrecycling
- engineering and technologyenvironmental engineeringenergy and fuelsfossil energypetroleum
- engineering and technologyindustrial biotechnologybiomaterials
- social scienceseconomics and businesseconomicssustainable economy
- engineering and technologycivil engineeringtransportation engineeringhighway engineering
Programme(s)
Régime de financement
MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)Coordinateur
90133 Palermo
Italie