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Bayesian material flow analysis of the construction aggregate cycle in England

  • Adam R. Mason
  • , Tom Bide
  • , Junyang Wang
  • , John Morley
  • , Mohit Arora
  • , Alperen Yayla
  • , Julia A. Stegemann
  • , Rupert J. Myers
  • Imperial College London
  • University College London
  • British Geological Survey
  • Department of Earth Science and Engineering
  • King's College London

Research output: Contribution to journalArticlepeer-review

5   Link opens in a new tab Citations (SciVal)

Abstract

Quantitative analysis of material over their life cycles provides crucial insight into the movement of materials within economies, informing economic and environmental impact assessment, and governmental and industrial interventions. Material Flow Analysis (MFA) for whole material cycles is often hindered by data gaps, limiting its practical value. We apply Bayesian Material Flow Analysis (BaMFA) to quantify England's 2019 construction aggregates (sand, gravel, crushed rock) system, reducing the labour-intensive manual data reconciliation requirement of conventional MFA approaches. Despite industry-reported data describing only 20 % of the system, BaMFA fully quantifies the system, provides novel insights into its supply-demand balance, and highlights opportunities for enhanced resource efficiency and waste minimisation. This includes improved quantification of primary aggregate consumption (142 Mt, 68 % from indigenous sources) and landfilling (20 Mt, 96 % demolition waste). This research demonstrates the potential of BaMFA for quantitative analysis of material systems and evidence-based action for more sustainable and resilient futures.

Original languageEnglish
Article number108135
Number of pages12
JournalResources, Conservation and Recycling
Volume215
Early online date25 Jan 2025
DOIs
Publication statusPublished - 30 Apr 2025

Bibliographical note

Publisher Copyright:
© 2025 The Author(s)

Data Availability Statement

Data is provided in the Supplementary Data file on Zenodo: https://zenodo.org/records/13,830,002 , and the codebase developed and used is available on GitHub, as detailed within the manuscript.

Acknowledgements

Participants of workshops to help inform the aggregates systems and input into appropriate assumptions for unknown data from the Mineral Products Association, British Aggregates Association, British Geological Survey, Infrastructure Pipeline Authority, Construction Products Association, and Office for National Statistics are thanked for their input.

Funding

Funding from EPSRC (EP/V011820/1) and the Office for National Statistics (https:// bidstats.uk/tenders/2022/W17/773587228) is acknowledged.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 8 - Decent Work and Economic Growth
    SDG 8 Decent Work and Economic Growth
  2. SDG 12 - Responsible Consumption and Production
    SDG 12 Responsible Consumption and Production

Keywords

  • Construction aggregates
  • Bayesian inference
  • Bayes theorem
  • Material flow analysis
  • England

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