Synthesis of the european national requirements and practices for recycling in HMA and WMA (DIRECT_MAT PROJECT)

Aleksander Ipavec (1) , Paul Marsac (2) , Konrad Mollenhauer (3)

1 ZAG - Slovenian National Building and Civil Engineering Institute = Zavod za gradbeništvo Slovenije (Ljubljana)
2 IFSTTAR/MAT - Département Matériaux
3 Braunschweig Pavement Engineering Centre, TU Braunschweig

The purpose of the 2009-2011 European project DIsmantling and RECycling Techniques for road MATerials is to contribute to the waste minimization in road maintenance and construction by sharing and disseminating, at a European level, the national know-how and sustainable practices regarding the dismantling of the pavements and the recycling of the reclaimed materials. In the framework of the DIRECT_MAT subproject Asphalt materials, the present paper gives a broad overview of the European policies, figures and trends concerning pavement recycling in Hot and Warm Mix Asphalts (HMA/WMA). Then, stemming from each country's experience, a survey of the national requirements and practices is conducted to provide reliable information as regard to the different stages of the pavement recycling process: dismantling of the layers, handling of the reclaimed asphalt, mixing equipments, mix design processes, performance evaluation and long term behaviour. This survey is illustrated with a synthesis of typical in-situ case studies. Finally, the experience and the knowledge thus gathered are discussed and summed up in a series of recommendations for an optimal and sustainable use of recycled materials in new road infrastructures in order to combine technical efficiency and environmental protection.

Mots clés: MATERIAU RECYCLE; ENROBE A CHAUD

Domaines: Matériaux

Aleksander Ipavec, Paul Marsac, Konrad Mollenhauer. Synthesis of the european national requirements and practices for recycling in HMA and WMA (DIRECT_MAT PROJECT). 5th Eurasphalt & Eurobitume Congress, Jun 2012, Turkey. 8p. ⟨hal-00850876⟩