Effect of fibre reinforcement on creep in early age concrete

This research analyses the strain behaviour of fibre-reinforced concrete (FRC) in the event of a creep episode. The analysis of creep experienced by FRC specimens during the test reflects better performance than that predicted by the EHE-08 standard. The authors propose a formulation for the evaluat...

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Detalhes bibliográficos
Autores: González, Laura, Gaute Alonso, Álvaro, Rico Arenal, Jokin|||0000-0001-9672-1475, Thomas García, Carlos|||0000-0002-2641-9411
Tipo de documento: artigo
Data de publicação:2022
País:España
Recursos:Universidad de Cantabria (UC)
Repositório:UCrea Repositorio Abierto de la Universidad de Cantabria
OAI Identifier:oai:repositorio.unican.es:10902/24988
Acesso em linha:http://hdl.handle.net/10902/24988
Access Level:Acceso aberto
Palavra-chave:Fibre-reinforced concrete
Steel fibres
Creep strain
Delayed elastic strain
Descrição
Resumo:This research analyses the strain behaviour of fibre-reinforced concrete (FRC) in the event of a creep episode. The analysis of creep experienced by FRC specimens during the test reflects better performance than that predicted by the EHE-08 standard. The authors propose a formulation for the evaluation of creep strain undergone by FRC. During the research, the evolution of the modulus of elasticity of FRC after a creep episode is analysed. After the test campaign, it can be concluded that FRC loaded at an earlier age stiffens after a creep episode. After the creep test is completed, the delayed elastic strain undergone by FRC is analysed and it is observed that FRC loaded at an earlier age undergoes less deformation. The authors propose a formulation for the evaluation of the delayed elastic strain undergone by FRC after a creep episode.