Development of a Wireless MEMS Multifunction Sensor System and Field Demonstration of Embedded Sensors for Monitoring Concrete Pavements: Volume I - Field Demonstration of Embedded Sensors for Monitoring Concrete Pavements

Pavements tend to deteriorate with time under repeated traffic and/or environmental loading. By detecting pavement distresses and damage early enough, it is possible for transportation agencies to develop more effective pavement maintenance and rehabilitation programs and thereby achieve significant cost and time savings. The structural health monitoring (SHM) concept can be considered as a systematic method for assessing the structural state of pavement infrastructure systems and documenting their condition. Over the past several years, this process has traditionally been accomplished through the use of wired sensors embedded in bridge and highway pavement. However, the use of wired sensors has limitations for long-term SHM and presents other associated cost and safety concerns. Recently, micro-electromechanical sensors and systems (MEMS) and nanoelectromechanical systems (NEMS) have emerged as advanced/smart-sensing technologies with potential for cost-effective and long-term SHM. This two-pronged study evaluated the performance of commercial off-the-shelf (COTS) MEMS sensors embedded in concrete pavement (Final Report Volume I) and developed a wireless MEMS multifunctional sensor system for health monitoring of concrete pavement (Final Report Volume II). In this part of the study (Volume I), the COTS MEMS sensors and the wireless sensors were deployed in a newly constructed concrete highway pavement. During the monitoring period, the temperature, moisture, and strain profiles were obtained and analyzed. The monitored data captured the effects of daily and seasonal weather changes on concrete pavement, especially the early-age curling and warping behavior of concrete pavement. These sensors, however, presented issues for long-term operation. So, to improve performance, a ZigBee protocol-based wireless communication system was implemented for the MEMS sensors. By synthesizing knowledge and experience gained from a literature review, field demonstrations, and implementation of wireless systems, issues associated with sensor selection, sensor installation, sensor packaging (to prevent damage from road construction), and monitoring for concrete pavement SHM are summarized. The requirements for achieving Smart Pavement SHM are then explored to develop a conceptual design of smart health monitoring of both highway and airport pavement systems for next-generation pavement SHM. A preliminary cost evaluation was also performed for traditional as well as MEMS sensors and other potential smart technologies for pavement SHM.

Language

  • English

Media Info

  • Media Type: Digital/other
  • Edition: Final Report
  • Features: Appendices; Figures; Photos; References; Tables;
  • Pagination: 138p

Subject/Index Terms

Filing Info

  • Accession Number: 01610870
  • Record Type: Publication
  • Report/Paper Numbers: IHRB Project TR-637, InTrans Project 12-417
  • Files: NTL, TRIS, ATRI, STATEDOT
  • Created Date: Sep 2 2016 8:00AM