Highlights Environmental impacts are strongly associated with production of bitumen. Less virgin resources in pavement leads to lower climate and material depletion impacts. Cold in-place recycling can reduce greenhouse gas emissions but may increase water depletion.

    Abstract Road pavement generates significant environmental impacts through the production, transportation, construction, and maintenance stages. Recycling methods can be used to reduce the demand for virgin materials, but these alternatives are not environmentally benign either. Using life cycle assessment of a real case study near Chatham, Ontario, we model the trade-offs of a road rehabilitation project over a 30-year service life, subject to three scenarios. These scenarios use differing quantities of resources and blends of reclaimed asphalt pavement (RAP). Results show use of RAP with cold in-place recycling substituting virgin materials improves the environmental performance of most indicators, including climate change. These gains are only slightly diminished by the additional transportation of machinery, which we show through sensitivity analysis is likely to improve as the method becomes more commonplace. This research fills a gap in knowledge for understanding the potential improvements for pavement rehabilitation supply chains.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Environmental impacts of road pavement rehabilitation


    Beteiligte:
    Elliot, Thomas (Autor:in) / Carter, Alan (Autor:in) / Ghattuwar, Sumedha (Autor:in) / Levasseur, Annie (Autor:in)


    Erscheinungsdatum :

    2023-03-21




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    Reducing environmental impacts of pavement

    Lu, Qing / Leng, Zhen | Elsevier | 2021


    Prestressed Pavement Rehabilitation

    S. M. Stoffels / A. J. Schokker / H. Yin et al. | NTIS | 2009


    Pavement Evaluation and Rehabilitation

    D. J. Elton / C. H. Juang / W. A. Nokes et al. | NTIS | 1988


    Asphalt Pavement Rehabilitation Treatment

    Morian, Dennis A. / Zhao, Yanqing / Arellano, Janice et al. | Transportation Research Record | 2005