circular economy; recycled content; building material; waste recycling; life cycle analysis
Abstract :
[en] A new circular composite material for building applications is developed, made of
two secondary raw materials coming from waste recycling: fibers and sand. Hydraulic lime is added as a binder. This new composite targets a low environmental impact thanks to benefits of upcycling buildings waste, low energy production process, lifetime up to 60 years and of a high potential of reversibility, reuse and upcycling. The research focused on mechanical and physical properties, as well as analysis of the microstructure by X-ray 3D microtomography and in-situ compression testing. The mechanical and physical test results show good and unexpected properties: a density of 390 to 1300 kg/m³; a compressive strength between 0.2 and 2.2 MPa, a bending strength of 0.1 to 1.9 MPa and a thermal conductivity of 0.06 to 0.14 W/mK. Further research will focus on circular construction and environmental aspects. Three applications are envisioned, according the standards of the building sector
Disciplines :
Architecture
Author, co-author :
Horvath, Mélanie; Institute of Mechanics, Materials and Civil engineering (iMMC), UCLouvain
Bollen Pierre; Institute of Mechanics, Materials and Civil engineering (iMMC), UCLouvain
Pardoen Thomas; Institute of Mechanics, Materials and Civil engineering (iMMC), UCLouvain
Trachte, Sophie ; Université de Liège - ULiège > Département d'Architecture ; Université de Liège - ULiège > Unités de recherche interfacultaires > Art, Archéologie et Patrimoine (AAP)
Language :
English
Title :
Evaluation of the properties of a new circular building composite material to upcycle building wastes
Publication date :
December 2023
Event name :
CISBAT 2023 "Climate Resilient Cities – Energy Efficiency & Renewables in the Digital Era"
Event organizer :
EPFL
Event place :
Lausanne, Switzerland
Event date :
septembre 2023
Audience :
International
Journal title :
Journal of Physics. Conference Series
ISSN :
1742-6588
eISSN :
1742-6596
Publisher :
Institute of Physics, United Kingdom
Volume :
2600
Peer reviewed :
Peer Reviewed verified by ORBi
Development Goals :
11. Sustainable cities and communities 12. Responsible consumption and production 13. Climate action
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Bibliography
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Horvath M, Trachte S, Pardoen T, (2021), New circular building composite material to upcycle building wastes, J. Phys.: Conf. Ser. 2042 012167.
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