INTECIN   20395
INSTITUTO DE TECNOLOGIAS Y CIENCIAS DE LA INGENIERIA "HILARIO FERNANDEZ LONG"
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Multiaxial behaviour of fibre reinforced mortar for masonry strengthening subjected to high temperatures
Autor/es:
XARGAY, H.; PEREIRA, E.; BARROS, J.; ALMEIDA, J.; FOLINO, P.
Lugar:
Rovinj
Reunión:
Congreso; RILEM Spring Convention and Sustainable Materials, Systems and Structures Conference (SMSS 2019); 2019
Institución organizadora:
RILEM
Resumen:
This paper analyses the effects of high temperature exposure up to 700°C on the residual multiaxial behaviour of a fibre reinforced mortar for overlay strengthening of masonry. Temperature has a detrimental effect in cementitious materials that can be simulated by advanced numerical models disposing of proper constitutive laws. Additionally, a multiaxial stress state can be found in localized areas of structural elements. The experimental residual behaviour from the mutual effect of temperature and multiaxial stress is evaluated and discussed. The analysis of the results show a clear loss of density and uniaxial strength after temperature exposure. The residual behaviour from specimens subjected to triaxial tests shows also a progressive change on the residual deviator stress vs confinement pressure response with the increase of temperature.