The Use of Wireless Sensor Networks to Monitor the Setting and Hardening Processes of Self-Compacting Concrete

  • S. Aparicio
  • J. V. Fuente
  • J. Ranz
  • J. Aliques
  • M. A. G. Izquierdo
  • R. Fernández
Conference paper
Part of the RILEM Bookseries book series (RILEM, volume 6)

Abstract

Traditionally, the study of cementitious materials has been performed using wired sensor technologies. Because these technologies are expensive and difficult to install, the use of wireless sensor networks has gained increasing importance. In this paper, the study of setting and hardening processes for two different types of self-compacting concrete (SCC) using a wireless monitoring system is reported. The monitoring system used to perform such study consists of a wireless sensor network using Cricket motes. These motes were purchased from Crossbow Technologies. For our research, the most important capability of Cricket motes is that they host a transmitter/receiver in the ultrasonic wavelength region. For monitoring the setting and hardening processes, the velocity of the ultrasonic pulse traveling across the material was measured, along with the humidity and temperature values both inside and outside the concrete sample. Multi-hop data transmission techniques were considered to monitor the velocity data.

Several experiments were performed at the laboratory. A set of samples were manufactured with two types of SCC, in one type some portland cement was replaced by limestone filler. These specimens were exposed to different curing conditions. Although it was found that the ultrasonic acquisition was not very robust, the wireless sensor networks are an efficient technology for monitoring the early stages of self-compacting concrete.

Keywords

Self-compacting concrete Setting and hardening processes Ultrasounds Wireless monitoring 

Notes

Acknowledgments

Support from the Spanish Science and Innovation Ministry, through research project BIA2009-14395-C04-01, and from the Spanish Ministry of Public Works, through research project C01/2007, is greatly acknowledged.

Dra. S. Aparicio was financed by the postdoctoral JAE-Doc program of the Spanish National Research Council (CSIC).

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Copyright information

© RILEM 2013

Authors and Affiliations

  • S. Aparicio
    • 1
  • J. V. Fuente
    • 2
  • J. Ranz
    • 1
  • J. Aliques
    • 2
  • M. A. G. Izquierdo
    • 3
  • R. Fernández
    • 2
  1. 1.CAEND (CSIC-UPM)Arganda del ReySPAIN
  2. 2.AIDICOValenciaSPAIN
  3. 3.ETSIT (UPM)MadridSPAIN

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