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Sensitivity of the LCA allocation procedure for BFS recycled into pavement structures

Author

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  • Sayagh, Shahinaz
  • Ventura, Anne
  • Hoang, Tung
  • François, Denis
  • Jullien, Agnès

Abstract

The purpose of this paper is twofold: to investigate the problems involved when performing an environmental assessment of various pavements structures and to establish the method applied to solutions proposed by official French guidelines. This assessment will be performed by employing the life cycle assessment (LCA) methodology specifically adapted to road pavements through a parametric environmental evaluation tool developed by LCPC: ERM (elementary road modulus). The paper will also detail the assessment methodology using this same ERM method. The issues of resources conservation and waste allocation will be examined for the case of blast furnace slag (BFS) recycling. Special focus will be placed on the sensitivity of environmental indicators as regards to the waste allocation procedure implemented in the ERM. Two distinct mass ratios (0% and 20%) of steel production have been assigned to BFS and tested on indicators results as hypotheses H1 and H2, respectively. Classical indicators have been calculated using a simplified model to allocate output flows into several impact categories. Results show that the structure using BFS contributes to saving binder extracted from natural resources, yet also consumes a larger mass of natural aggregates. All indicators except for toxicity were found to be very sensitive to the choice of H1 or H2 hypotheses.

Suggested Citation

  • Sayagh, Shahinaz & Ventura, Anne & Hoang, Tung & François, Denis & Jullien, Agnès, 2010. "Sensitivity of the LCA allocation procedure for BFS recycled into pavement structures," Resources, Conservation & Recycling, Elsevier, vol. 54(6), pages 348-358.
    • Handle: RePEc:eee:recore:v:54:y:2010:i:6:p:348-358
    DOI: 10.1016/j.resconrec.2009.08.011
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    References listed on IDEAS

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    1. Lee, Kun-Mo & Park, Pil-Ju, 2005. "Estimation of the environmental credit for the recycling of granulated blast furnace slag based on LCA," Resources, Conservation & Recycling, Elsevier, vol. 44(2), pages 139-151.
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    Cited by:

    1. Hsien-Te Lin & Yi-Jiung Lin, 2022. "Component-level embodied carbon database for landscape hard works in Taiwan," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 24(4), pages 4918-4941, April.
    2. Saade, Marcella Ruschi Mendes & Silva, Maristela Gomes da & Gomes, Vanessa, 2015. "Appropriateness of environmental impact distribution methods to model blast furnace slag recycling in cement making," Resources, Conservation & Recycling, Elsevier, vol. 99(C), pages 40-47.
    3. Chen, C. & Habert, G. & Bouzidi, Y. & Jullien, A. & Ventura, A., 2010. "LCA allocation procedure used as an incitative method for waste recycling: An application to mineral additions in concrete," Resources, Conservation & Recycling, Elsevier, vol. 54(12), pages 1231-1240.
    4. Santos, João & Flintsch, Gerardo & Ferreira, Adelino, 2017. "Environmental and economic assessment of pavement construction and management practices for enhancing pavement sustainability," Resources, Conservation & Recycling, Elsevier, vol. 116(C), pages 15-31.
    5. Giani, Martina Irene & Dotelli, Giovanni & Brandini, Nicolò & Zampori, Luca, 2015. "Comparative life cycle assessment of asphalt pavements using reclaimed asphalt, warm mix technology and cold in-place recycling," Resources, Conservation & Recycling, Elsevier, vol. 104(PA), pages 224-238.
    6. Capony, Adrien & Muresan, Bogdan & Dauvergne, Michel & Auriol, Jean-Claude & Ferber, Valéry & Jullien, Agnès, 2013. "Monitoring and environmental modeling of earthwork impacts: A road construction case study," Resources, Conservation & Recycling, Elsevier, vol. 74(C), pages 124-133.
    7. Jullien, A. & Proust, C. & Martaud, T. & Rayssac, E. & Ropert, C., 2012. "Variability in the environmental impacts of aggregate production," Resources, Conservation & Recycling, Elsevier, vol. 62(C), pages 1-13.
    8. Silva, Hugo M.R.D. & Oliveira, Joel R.M. & Jesus, Carlos M.G., 2012. "Are totally recycled hot mix asphalts a sustainable alternative for road paving?," Resources, Conservation & Recycling, Elsevier, vol. 60(C), pages 38-48.

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