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Advanced Construction Materials and Technologies
Electrical resistance at the different levels of the sensor array embedded in a concrete sample.
The application of this study to the self-healing and external repair topic is highly promising from the perspective of a non-destructive and reliable characterization of the materials performance. The continuous monitoring of the electrical resistivity of self-healing materials will allow us to obtain the information in real time about the evolution of the cracks, from the formation to the healing process. It is interesting to note that the methodology is applicable, independently of the self-healing approach considered.
On the other hand, the array of sensor will be highly applicable for evaluating the effectiveness of the external repair methods, both concerning the penetrability of the treatment and related to the water-tightness and resistance against the aggressive agent penetration of the treated surface.
4. Acknowledgement
RYC-2016-21422 Grant and COST Action CA15202.
5. References
Barroca N., Borges L.M., Velez F.J., Monteiro F., Górski M., Castro-Gomes J. (2013) Wireless sensor networks for temperature and humidity monitoring within concrete structures, Construction and Building Materials 40, pp. 1156-1166.
Chen L.T., Lee C.Y., Cheng W.H. (2008), MEMS-based humidity sensor with integrated temperature compensation mechanism, Sensors and Actuators A: Physical 147, pp 522-528.
Steinberg M.D., Tkalcec B., Steinberg I. M. (2016) Towards a passive contactless sensor for monitoring resistivity in porous materials, Sensors and Actuators B: Chemical B234, pp 294-299
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