Smart Concrete with Optical Sensors for Monitoring Curing
Author Information
Author(s): Edson Souza, Pâmela Pinheiro, Felipe Coutinho, João Dias, Ronaldo Pilar, Maria José Pontes, Arnaldo Leal-Junior
Primary Institution: Federal University of Espírito Santo
Hypothesis
Can fiber Bragg grating sensors effectively monitor the curing process of concrete?
Conclusion
The developed measurement system can effectively monitor the curing process of concrete, including autogenous shrinkage strain, temperature, and relative humidity.
Supporting Evidence
- The maximum autogenous shrinkage strain recorded was 223.89 με.
- The maximum temperature measured was 63.65 °C.
- The maximum relative humidity reached was 98.20 %RH.
- The system maintained signal integrity during load cycles in the beam test.
Takeaway
This study shows how special sensors can help us keep track of how concrete is drying and changing, making it stronger and safer.
Methodology
The study used fiber Bragg grating sensors to monitor strain, temperature, and humidity during the curing of concrete.
Limitations
The optical fibers are weak and may require encapsulation for durability under harsh conditions.
Digital Object Identifier (DOI)
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