Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Strengthening of Reinforced Concrete Beams Using TRM at Elevated Temperatures
https://orcid.org/http://orcid.org/0000-0003-4306-1869
https://orcid.org/http://orcid.org/0000-0001-8161-4386
Concrete structures reinforced with Fiber-Reinforced Polymer (FRP) face degradation under high temperatures or fire unless externally insulated. Textile Reinforced Mortars (TRMs) provide an alternative solution capable of avoiding the challenges of FRP epoxies at elevated temperatures. This study delves into the thermo-mechanical performance of reinforced concrete beams strengthened with Textile Reinforced Mortar in high-temperature environments. Basalt and Carbon textiles were used for reinforcement, with Carbon and Basalt TRMs applied in one-layer and one- and three-layer configurations, respectively. Specimens were heated to 200 °C, 400 °C, 600 °C, and 800 °C, followed by mechanical loading to assess flexural behaviour at those temperatures. Results indicated reduced flexural strength at higher temperatures, except at 400 °C. TRMs demonstrated resistance up to 600 °C, albeit with degradation of concrete and steel at this threshold. At 800 °C, Basalt textiles exhibited annealing, while carbon textiles oxidised within the TRM matrix. The study also examined the strengthened members’ thermal response and mechanical failure patterns under elevated temperatures.
Strengthening of Reinforced Concrete Beams Using TRM at Elevated Temperatures
https://orcid.org/http://orcid.org/0000-0003-4306-1869
https://orcid.org/http://orcid.org/0000-0001-8161-4386
Concrete structures reinforced with Fiber-Reinforced Polymer (FRP) face degradation under high temperatures or fire unless externally insulated. Textile Reinforced Mortars (TRMs) provide an alternative solution capable of avoiding the challenges of FRP epoxies at elevated temperatures. This study delves into the thermo-mechanical performance of reinforced concrete beams strengthened with Textile Reinforced Mortar in high-temperature environments. Basalt and Carbon textiles were used for reinforcement, with Carbon and Basalt TRMs applied in one-layer and one- and three-layer configurations, respectively. Specimens were heated to 200 °C, 400 °C, 600 °C, and 800 °C, followed by mechanical loading to assess flexural behaviour at those temperatures. Results indicated reduced flexural strength at higher temperatures, except at 400 °C. TRMs demonstrated resistance up to 600 °C, albeit with degradation of concrete and steel at this threshold. At 800 °C, Basalt textiles exhibited annealing, while carbon textiles oxidised within the TRM matrix. The study also examined the strengthened members’ thermal response and mechanical failure patterns under elevated temperatures.
Strengthening of Reinforced Concrete Beams Using TRM at Elevated Temperatures
https://orcid.org/http://orcid.org/0000-0003-4306-1869
https://orcid.org/http://orcid.org/0000-0001-8161-4386
Concrete structures reinforced with Fiber-Reinforced Polymer (FRP) face degradation under high temperatures or fire unless externally insulated. Textile Reinforced Mortars (TRMs) provide an alternative solution capable of avoiding the challenges of FRP epoxies at elevated temperatures. This study delves into the thermo-mechanical performance of reinforced concrete beams strengthened with Textile Reinforced Mortar in high-temperature environments. Basalt and Carbon textiles were used for reinforcement, with Carbon and Basalt TRMs applied in one-layer and one- and three-layer configurations, respectively. Specimens were heated to 200 °C, 400 °C, 600 °C, and 800 °C, followed by mechanical loading to assess flexural behaviour at those temperatures. Results indicated reduced flexural strength at higher temperatures, except at 400 °C. TRMs demonstrated resistance up to 600 °C, albeit with degradation of concrete and steel at this threshold. At 800 °C, Basalt textiles exhibited annealing, while carbon textiles oxidised within the TRM matrix. The study also examined the strengthened members’ thermal response and mechanical failure patterns under elevated temperatures.
Strengthening of Reinforced Concrete Beams Using TRM at Elevated Temperatures
Lecture Notes in Civil Engineering
Barros, Joaquim A. O. (Herausgeber:in) / Cunha, Vítor M. C. F. (Herausgeber:in) / Sousa, Hélder S. (Herausgeber:in) / Matos, José C. (Herausgeber:in) / Sena-Cruz, José M. (Herausgeber:in) / Loo Chin Moy, Charles K. S. (Autor:in) / Revanna, Naveen (Autor:in)
FIB International Conference on Concrete Sustainability ; 2024 ; Guimarães, Portugal
4th fib International Conference on Concrete Sustainability (ICCS2024) ; Kapitel: 59 ; 480-488
09.01.2025
9 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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