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A life cycle based environmental impacts assessment of construction materials used in road construction

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  • Chowdhury, Raja
  • Apul, Defne
  • Fry, Tim

Abstract

Industrial byproducts such as coal fly ash, coal bottom ash, and recycled concrete pavement (RCP) are being used in considerable amounts as a full or partial replacement of natural aggregates. Studies comparing road construction byproduct materials with natural aggregates are limited. In the present study, a comparison of these byproducts with natural aggregates was carried out with respect to cost, environmental pollutants generated, and energy consumption. Pollutant emission data were aggregated to express results in terms of global warming potential (GWP), acidification potential and various toxicity potentials. For assessment of toxicity potentials, all the toxicities were represented with respect to 1,4 dichlorobenzene. Mixed results were found from the Life Cycle Assessment (LCA) and no single material performed superiorly in all categories. Fly ash and bottom ash were found attractive in cost, GWP, and acidification potential categories. RCP had higher GWP and acidification potential compared to natural aggregates. In toxicity categories, in some cases fly ash and bottom ash had higher; and RCP, in all cases, had much lower toxicity compared to natural aggregates.

Suggested Citation

  • Chowdhury, Raja & Apul, Defne & Fry, Tim, 2010. "A life cycle based environmental impacts assessment of construction materials used in road construction," Resources, Conservation & Recycling, Elsevier, vol. 54(4), pages 250-255.
    • Handle: RePEc:eee:recore:v:54:y:2010:i:4:p:250-255
    DOI: 10.1016/j.resconrec.2009.08.007
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    References listed on IDEAS

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    1. Olsson, Susanna & Kärrman, Erik & Gustafsson, Jon Petter, 2006. "Environmental systems analysis of the use of bottom ash from incineration of municipal waste for road construction," Resources, Conservation & Recycling, Elsevier, vol. 48(1), pages 26-40.
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    Cited by:

    1. Anastasiou, E.K. & Liapis, A. & Papayianni, I., 2015. "Comparative life cycle assessment of concrete road pavements using industrial by-products as alternative materials," Resources, Conservation & Recycling, Elsevier, vol. 101(C), pages 1-8.
    2. Farina, Angela & Zanetti, Maria Chiara & Santagata, Ezio & Blengini, Gian Andrea, 2017. "Life cycle assessment applied to bituminous mixtures containing recycled materials: Crumb rubber and reclaimed asphalt pavement," Resources, Conservation & Recycling, Elsevier, vol. 117(PB), pages 204-212.

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