T-WiEYE: An early-age concrete strength development monitoring and miniaturized wireless impedance sensing system

This paper develops an innovative active wireless sensing system that consists of a miniaturized electromechanical impedance measuring chip and a reusable piezoelectric transducer appropriately installed in a Teflon-based enclosure to monitor the concrete strength development at early ages and initial hydration states. To identify the degree of concrete strength evolution, electromechanical impedance (EMI) changes associated with decision boundaries based on extreme value statistics (EVS) are utilized during the hydration process. Experimental results have presented that prove the effectiveness of the proposed miniaturized sensing system to monitor concrete structures from their earliest stages. © 2011 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of ICM11