The utilization of fiber Bragg grating sensors to monitor high performance concrete at elevated temperature
Resource
Smart Materials and Structures 13 (4): 784-790
Journal
Smart Materials and Structures
Journal Volume
13
Journal Issue
4
Pages
784-790
Date Issued
2004
Date
2004
Author(s)
Abstract
Embedded optical fiber Bragg grating (FBG) sensors are used to evaluate the properties of high performance concrete (HPC), subjected to high thermal strain. HPC is composed of polypropylene fibers and steel fibers, as additives, in a cylindrical concrete filled steel tube (CFT). A good agreement response between the FBG temperature sensor and a thermocouple was obtained. In addition, experimental results indicate that a CFT behaves differently from unconfined concrete in the center of a specimen, at a furnace temperature of 250°C and that polypropylene fibers potentially have a higher capability to restrain spalling than do steel fibers.
SDGs
Other Subjects
Concretes; Fibers; Fire resistance; High temperature operations; Mechanical permeability; Polypropylenes; Sensors; Silica; Spalling; Strain gages; Fiber bragg grating (FBG); High performance concrete (HPC); Steel fibers; Thermocoupling; Diffraction gratings
Type
journal article
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Format
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