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Piezoelectric-Based Viscosity Probe for Early-Age Concrete Curing Process Monitoring

[+] Author Affiliations
Chen Zhang

University of North Texas, Denton, TX

Xun Yu

New York Institute of Technology, Old Westbury, NY

Paper No. IMECE2016-68055, pp. V009T17A003; 6 pages
  • ASME 2016 International Mechanical Engineering Congress and Exposition
  • Volume 9: Mechanics of Solids, Structures and Fluids; NDE, Diagnosis, and Prognosis
  • Phoenix, Arizona, USA, November 11–17, 2016
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5063-3
  • Copyright © 2016 by ASME


This paper presents an active sensing system for concrete viscosity measurement during its very early age. The proposed system is based on the analysis of energy transmission at the boundary of interface between probe (stainless steel bar in the system) and concrete mixture. Different from traditional systems, which employed a couple of actuator and sensor attaching to the surface of the concrete, the new system employs only one transducer as both actuator and sensor. Therefore, the system could be integrated in a small size and more portable. Since only one transducer is employed, the viscosity change of early age concrete is extracted by analyzing the energy variation of the reflected ultrasonic waves instead of applying traditional digital signal processing (DSP) technique (magnitude, phase, velocity). Laboratory experiments are carried out to evaluate the effect of this approach. Results show good match with theoretical analysis. This system can be used in large-scale field investigation of concrete viscosity monitoring for bridges, highways and airport pavements.

Copyright © 2016 by ASME



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