Dual Purpose Etched Polarimetric Optical Fiber Sensor for Concrete

混凝土结构在使用中的性能取决于对状况的持续监测，以便及早安排维修和改造作业。适当的质量控制和状态监测程序要么不存在，要么不容易适用于大型混凝土结构。早期发现混凝土构件的大位移和裂缝将提高安全性，并大大节省修复费用。本研究将探讨使用新型光纤传感器对混凝土结构进行实时状态监测的可行性。新型嵌入式传感器具有双重功能，即在施工初期提供现场强度估计，并在施工后提供裂缝检测功能。

In-service performance of concrete structures depends on consistent monitoring of condition for early scheduling of repair and retrofit operations. Proper quality control and condition monitoring procedures are either nonexistent or not readily applicable to large concrete structures. Early detection of large displacements and cracks in concrete elements will result in increased safety and considerable savings in rehabilitation costs. This research will examine the feasibility of using a novel class of fiber optic sensors for real-time condition monitoring of concrete structures. The new embedded sensor will serve a dual purpose by providing in-place strength estimations at early ages during construction, and crack detection capabilities there after.