Abstract
The objective of this work is to develop a simple instrumentation system to assess the healthiness of small concrete structures. There are various methods available for crack detection in concrete structures such as visual inspection, thermography, ultrasonic testing etc. This work emphasizes on a simple resistance transducer sensor for detection of crack in small concrete structures. The system is integrated with NodeMCU based micro controller which measures the change in resistance with respect to the crack developed. A simple prototype concrete structure is developed and the performance results is discussed. The experimental results show that proposed method seems to be simple and effective in comparison with other techniques.
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