Highlights The road use phase should not be neglected in LCA methodologies. A smoother surface course can reduce about 2% of the vehicles energy consumption. The use of recycled materials mainly reduces the gaseous emissions of pavements. Energy consumption over 20years is 700times higher than that of construction. GHG emissions of vehicles are 1000times higher than those of construction phase.

    Abstract In order to assess sustainability of products and processes, different methodologies have been developed and used in the last years. In the road pavement construction area, most methodologies used for Life Cycle Assessment (LCA) are essentially focused in the construction phase. The present paper analyses the importance of the use phase of a road in the LCA of different paving alternatives, namely by evaluating energy consumption and gaseous emissions throughout the road pavement’s life. Therefore, a new LCA methodology for road pavements was developed, and the results of its application to a case study involving the construction of alternative pavement structures are discussed. The study intends to assess the influence of using more sustainable paving construction alternatives (asphalt recycling vs. conventional asphalt mixtures), and/or different surface course materials (which have a higher influence on the rolling resistance and, therefore, affect the performance during the use phase). The LCA results obtained for this case study showed that the reductions in energy consumption and gaseous emissions obtained during the use phase, for pavement alternatives with a lower rolling resistance surface course, are higher than the total amount of energy consumption and gas emissions produced during construction. It is therefore clear that some improvements in the characteristics of the surface course may have an effect over the road use phase that will rapidly balance the initial costs and gas emissions of those interventions. The LCA results obtained also showed that the sustainability of pavement construction may also be improved using recycled asphalt mixtures.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    The importance of the use phase on the LCA of environmentally friendly solutions for asphalt road pavements


    Beteiligte:


    Erscheinungsdatum :

    2014-01-01


    Format / Umfang :

    14 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    Environmentally Tuning Asphalt Pavements Using Microencapsulated Phase Change Materials

    Montoya, Miguel A. / Betancourt, Daniela / Rahbar-Rastegar, Reyhaneh et al. | Transportation Research Record | 2022


    Self-healing Asphalt for Road Pavements

    Tabakovic, A. / Schlangen, E. | TIBKAT | 2020



    Application of reclaimed asphalt in recycled road pavements

    Lukasz Skotnicki / Jaroslaw Kuzniewski | DOAJ | 2021

    Freier Zugriff