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The increasing pressure to divert waste from landfills has driven the search for viable alternatives for its valorization. In this context, incorporating waste into cementitious matrices can, in certain cases, allow for the reuse of materials, giving them a new purpose. Some types of waste not only find a disposal pathway within these materials but also contribute to improving their properties, whether in terms of mechanical, acoustic, thermal, or even aesthetic performance. In other cases, material substitution is limited to the inert fraction of the mixtures (sands, gravel, and additives), resulting in a less significant valorization but still relevant from an environmental perspective and in terms of natural resource conservation. Acknowledging the challenges associated with implementing in practice these solutions on an industrial scale, the consortium led by Farcimar, in collaboration with W2V, University of Minho, and Itecons, launched the WasteCrete project, co-funded by the Portugal 2030 program (COMPETE2030-FEDER-01181800). The main objective of the project is to develop concrete formulations that incorporate waste as substitutes for conventional raw materials, promoting both technical, economic, and environmental benefits in the production of precast concrete products. This work will outline the project’s general guidelines and present some preliminary results regarding the use of waste from the metallurgical, metalworking and other manufacturing industries (e.g. steelmaking furnace dusts, foundry sands, wastewater treatment sludges and liquids, stone-cutting sludges, used blasting media, ceramic sludges, and glass waste) as replacements for inert aggregates.

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Cement and Concrete Artifacts as a Way to Promote Sustainable Waste Management

  • 会议论文

  • 发表日期：

    2026年

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  • Bruno Teixeira,
  • Fernando Castro,
  • José Barroso de Aguiar,
  • Aires Camões,
  • Rute Eires,
  • Raphaele Malheiro,
  • Sandra Cunha,
  • João Almeida,
  • Micaela Oliveira,
  • Bruno Machini,
  • Tiago Teixeira

摘要

The increasing pressure to divert waste from landfills has driven the search for viable alternatives for its valorization. In this context, incorporating waste into cementitious matrices can, in certain cases, allow for the reuse of materials, giving them a new purpose. Some types of waste not only find a disposal pathway within these materials but also contribute to improving their properties, whether in terms of mechanical, acoustic, thermal, or even aesthetic performance. In other cases, material substitution is limited to the inert fraction of the mixtures (sands, gravel, and additives), resulting in a less significant valorization but still relevant from an environmental perspective and in terms of natural resource conservation. Acknowledging the challenges associated with implementing in practice these solutions on an industrial scale, the consortium led by Farcimar, in collaboration with W2V, University of Minho, and Itecons, launched the WasteCrete project, co-funded by the Portugal 2030 program (COMPETE2030-FEDER-01181800). The main objective of the project is to develop concrete formulations that incorporate waste as substitutes for conventional raw materials, promoting both technical, economic, and environmental benefits in the production of precast concrete products. This work will outline the project’s general guidelines and present some preliminary results regarding the use of waste from the metallurgical, metalworking and other manufacturing industries (e.g. steelmaking furnace dusts, foundry sands, wastewater treatment sludges and liquids, stone-cutting sludges, used blasting media, ceramic sludges, and glass waste) as replacements for inert aggregates.