Deformation measurements of mortars at early ages and of large concrete components on site by means of embedded fiber-optic microstrain sensors

Identification of early-age concrete temperatures and strains: Monitoring and numerical simulation

“…More recently, optical fibre technology is reported to be a good solution in early-age concrete temperature and strain measurements, because of its high precision and resolution, insensibility to electromagnetic fields and mechanical robustness [9][10][11][12]. In terms of in-field applications, this technology was used by Glisic and Inaudi [13] for monitoring temperatures and deformations in early-age concrete cast above a hardened element, and in composite steel-concrete structures during cement hydration [14].…”

Thermal behavior and performance evaluation of epoxy-based polymer concretes containing silicone rubber for use as runway repair materials

“…In addition, FBG sensors are able to detect in-situ and real-time strain variation in large areas without being disturbed by electromagnetic fields, and have little effect on the structural behavior of the material being studied because of their extremely small size [21][22][23][24][25]. Based on these advantages of FBG sensors, various monitoring techniques have been developed for monitoring the state of civil structures [26][27][28][29].…”

Shrinkage Measurement in Concrete Materials using Cure Reference Method

“…However, this method is in the category of the averaged shrinkage measurements. Embedded sensors, such as embedded strain gauges and fiber optics, are used for measuring internal shrinkage at specific locations of concrete samples [6][7][8]. But these methods are categorized into the point measurements and the gathered information is easily altered by the intrusive nature of these tests.…”