On the use of embedded fiber optic sensors for measure strains in concrete.
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Universidade Católica de Pernambuco
Sem resumo em português.
Concrete is one of the main materials used worldwide and the quest to improve
the quality and durability of concrete structures is constant. Several factors can
contribute to the decrease of the durability of the material, deformations caused
by phenomena such as Shrinkage and internal swelling reactions occur for
different causes and generally at different ages, but they can directly interfere in
decreasing the useful life of the structures.There are several test methods used
to describe the behavior of structures against retraction or affected by internal
swelling reactions (ISR), but most of them require complex and destructive
procedures for material analysis. Over time, new technologies have been the
subject of study for monitoring structures over time, including fiber optic
sensors, so fiber optic sensors have been increasingly applied to the study of
concrete elements and engineering in general. There are several types and
designs of sensors, but not all are suitable for use in concrete structures. This
work aims to evaluate whether this technology is effective as an alternative for
monitoring concrete. The analysis of deformations from Shrinkage and internal
swelling reactions in concrete elements was done using a bare-type, smalldiameter
FBG (Fiber Bragg Grating) sensor.
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SILVA, Klayne Kattiley dos Santos. On the use of embedded fiber optic sensors for measure strains in concrete. 2021. 90 f. Dissertação (mestrado) - Universidade Católica de Pernambuco. Pró-reitoria Acadêmica. Coordenação Geral de Pós-graduação. Mestrado em Engenharia Civil, Recife, 2021.