Use of GFRP in Concrete: An Investigation of Fire Properties and Performance
Notice bibliographique
Résumé
In this thesis, the potential of using glass fiber-reinforced polymer (GFRP) as reinforcement material in concrete structures is explored, with a focus on its performance when exposed to high temperatures compared to traditional steel reinforcement. The main objective is to compare and analyze how these materials are affected by high temperatures and to investigate the effect of biochar as an additive aimed at improving fire resistance. This study represents the first investigation in Sweden of concrete beams reinforced with GFRP and containing a 10 weight percent addition of biochar. The study is motivated by the ambition to promote the use of GFRP as a sustainable alternative within the construction sector, a strategy that has already been successfully implemented in countries like Canada and Poland. Glass fiber-reinforced polymers offer several advantages over traditional steel, such as high strength relative to low weight, good corrosion resistance, and minimal maintenance needs. Additionally, the manufacturing process of GFRP is less energy-intensive and results in lower carbon dioxide emissions. These properties make GFRP an interesting alternative in modern construction projects. However, the use of GFRP within the construction industry is largely limited by its high cost, limited experience among designers, and an insufficient understanding of its fire resistance. In the study, experimental tests were conducted to assess and compare the strength of concrete beams reinforced with either GFRP or steel, both before and after exposure to fire. Further tests were performed on corresponding concrete beams that contained an addition of biochar, to investigate its potential to improve fire properties. The results indicated that GFRP-reinforced concrete beams, with the addition of biochar, had a better ability to maintain their strength at 220°C compared to steel-reinforced concrete beams without this addition. However, the addition of biochar resulted in a noticeable deterioration of the strength of the GFRP-reinforced concrete beams that were not exposed to fire. The results from the study suggest that GFRP-reinforced concrete with the addition of biochar showed significantly improved fire resistance comparable to that of steel-reinforced concrete, when exposed to a temperature of 220°C. The test results imply that the addition of biochar is likely more beneficial for optimizing fire resistance rather than strength. Considering that this study represents an innovative initiative within its field, further research is recommended to carefully establish the optimal addition amount of biochar, as well as to explore the effects on biochar and GFRP when exposed to higher temperatures.
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 | 0,001 | 0,001 |
| 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 | 0,003 |
| Science ouverte | 0,001 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 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 ».