Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/92900
Título: | Effects of long-term exposure of NSM CFRP-to-concrete bond to natural and accelerated aging environments |
Autor(es): | Dushimimana, Aloys Sena-Cruz, José Correia, Luís Luciano Gouveia Pereira, João Miguel Cabral-Fonseca, Susana Cruz, Ricardo |
Palavras-chave: | Durability Natural aging Accelerated aging NSM CFRP-to-concrete bond Epoxy adhesive Concrete Carbon fiber |
Data: | 5-Mai-2024 |
Editora: | Elsevier |
Revista: | Composite Structures |
Citação: | Dushimimana, A., Sena-Cruz, J., Correia, L., Pereira, J. M., Cabral-Fonseca, S., & Cruz, R. (2024, July). Effects of long-term exposure of NSM CFRP-to-concrete bond to natural and accelerated aging environments. Composite Structures. Elsevier BV. http://doi.org/10.1016/j.compstruct.2024.118174 |
Resumo(s): | Carbon fiber reinforced polymer (CFRP) composites can be used to strengthen existing reinforced concrete (RC) structures. The CFRP laminate can be bonded to RC structure using epoxy adhesive via near-surface mounted (NSM) strengthening technique. However, existing literature generally lacks data about durability of NSM CFRP-to-concrete bond. In this study, strengthened concrete elements were exposed to laboratory-controlled environments (at approximately 20 ◦C/55 % RH, and water immersion at 20 ◦C) and natural field environments (to promote natural aging induced mainly by carbonation, high temperatures, freeze–thaw attack, and airborne chlorides) for up to four years. Durability tests were conducted yearly for the bond and its constituent materials. The highest bond strength degradations were nearly 12 % and 9 % for the specimens immersed in water and those exposed to freeze–thaw attack, respectively. Besides, environmental conversion factors of 0.88 and 0.93 were derived from a database of existing accelerated, and natural aging data from the present work, respectively. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/92900 |
DOI: | 10.1016/j.compstruct.2024.118174 |
ISSN: | 0263-8223 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | ISISE - Artigos em Revistas Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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IPJ-091_2024_Dushimimana_et_al_Composite Structures.pdf | Paper | 20,24 MB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons