Usability of Textile Reinforced Concrete: Structural Performance, Durability and Sustainability
Notice bibliographique
Résumé
Textile reinforced concrete (TRC) is an innovative high performance composite material consisting of open multi-axial textiles embedded in a fine-grained concrete matrix. Despite the fact that TRC-based research has revealed many promising attributes, it has yet to reach its recognition due to a lack of available design tools, standards and long-term behaviour. To be able to reach this next stage, consistent test methods and reliable models need to be established to reduce uncertainty and the need for individual and extensive experimental studies. This thesis aims to investigate structural performance, durability and sustainability aspects of TRC for its usability in the built environment. The structural performance was experimentally and analytically evaluated for the individual material constituents, material interaction, as well as global TRC components. The linking of the structural performance of these various levels was investigated by means of non-linear finite element analysis (FEA). The durability of TRC was characterized according to the influence of accelerated ageing based on alkali resistance on the structural performance of textile reinforcement. Furthermore, the environmental sustainability of TRC was evaluated in comparison to conventional RC using a Life Cycle Assessment (LCA).The experimental quantification of the structural performance on the material and interaction levels was found to be decisive to understand the composite behaviour. In general, the bond behaviour in TRC has been identified as a critical feature affecting the global behaviour. Particularly for carbon textiles, the bond behaviour needs to be improved; an enhancement of the load bearing behaviour was successfully observed using surface coatings, short fibres, and high performance concrete. Linking the experimental data from the material and interaction levels to the global level in FEA led to promising results such that further insight on the actual failure behaviour could be gained. The accelerated testing was generally too aggressive for textiles made of basalt and AR-glass leading to extensive degradation; however, carbon textiles were found to be a promising alternative as they have superior durability properties in an alkaline environment without undergoing any strength loss. Through accelerated testing, it was found that the exposure time, temperature and test solution need to be material specific. The applied sizing or coating on the textiles also had a considerable influence on the extent of degradation. Based on the conducted LCA, the reduction of the concrete cover in a TRC panel significantly decreased its environmental impact compared to traditionally reinforced solutions. Ultimately, the experimental and modelling approaches developed in this work can be applied to further characterize the short- and long-term behaviour of TRC for the built environment.
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Comment cette classification a été obtenuedéplier
Prédiction distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,001 | 0,000 |
| Bibliométrie | 0,001 | 0,001 |
| Études des sciences et des technologies | 0,000 | 0,001 |
| Communication savante | 0,000 | 0,001 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,001 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,001 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule tête enseignante, pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».