Description du projet
Un futur neutre en carbone pour le béton
L’industrie du bâtiment contribue de manière considérable aux émissions mondiales de carbone, la production traditionnelle de béton étant à elle seule responsable d’une empreinte environnementale énorme. Les méthodes conventionnelles font abondamment appel au ciment, un matériau réputé pour ses hautes émissions de CO2 durant sa fabrication. Qui plus est, la durabilité de ces structures dépend souvent d’une armature en acier, qui peut se corroder avec le temps, ce qui aggrave encore l’incidence sur l’environnement. En réponse à ces défis, le projet CARBCOMN financé par le CEI entend révolutionner le secteur en développant des structures portantes en béton sans carbone. Cela réduira les émissions de CO2. Il améliore également la durabilité et la circularité par le biais d’une conception numérique avancée et de nouvelles technologies des matériaux. CARBCOMN permettra d’établir de nouvelles normes pour des pratiques de construction durable, donnant aux architectes et aux ingénieurs les moyens de créer des structures inspirantes et respectueuses de l’environnement.
Objectif
CARBCOMN addresses a disruptive innovation in zero-carbon concrete load-bearing structures (combination of columns, beams, slabs or walls) by setting forth a new digital AEC design paradigm that is fully compatible with concrete that uses CO2 as raw material and is carbon-negative. Digital methodologies are exploited and developed to realise an innovative carbon-neutral construction system implementing structural geometries that are compression dominant, optimise the CO2 sequestration capability and make use of demountable discrete blocks combined with system redundancy. The latter will be assisted by the combined use of funicular shapes and post-tensioning with shape memory alloys. To handle the complex geometries in combination with a carbon-negative concrete-like material, an innovative digital pipeline is developed that incorporates for example computed tomography, topology optimization and 3D construction. Using CO2 sequestration to harden the concrete-like material for widely used load bearing structures will reduce embodied greenhouse gas emissions in an unprecedented way. The material design, incorporating recycled materials and by-products derived from other industrial processes (e.g. slags and ashes) will equally reduce raw material usage. The intrinsic durability properties by introducing a system that is not susceptible to rebar corrosion and is deconstructable, will achieve both long service life and circularity, to further reduce the environmental impact of the built environment. The overall superiority of the proposed system with respect to the current state of practice will be demonstrated through a full life cycle analysis. Throughout the CARBCOMN project, compliance with relevant standards of building operational performance will be established, and designers, architects, engineers will be enabled to use the novel design paradigm for inspiring buildings.
Champ scientifique
Mots‑clés
Programme(s)
- HORIZON.3.1 - The European Innovation Council (EIC) Main Programme
Régime de financement
HORIZON-EIC - HORIZON EIC GrantsCoordinateur
9000 Gent
Belgique