Real-time temperature field measurement of asphalt pavement based on fiber Bragg grating measuring technology

Ze Jiao Dong, Sheng Long Li, Jia Yu Wen, Zhen Leng

Research output: Journal article publicationJournal articleAcademic researchpeer-review

15 Citations (Scopus)

Abstract

Based on fiber bragg grating (FBG) measuring technology, the long-term and real-time temperature monitoring system of temperature information for asphalt pavement was established to continuously monitor asphalt pavement temperature. The temperatures of asphalt pavement layers were measured by using high-precision thermocouples to amend the FBG temperature sensors in-site. The FBG temperature sensor was used to monitor the real-time temperature of asphalt pavement. Analysis result shows that the internal pavement temperature reaches the highest value at 2:00-4:00 PM and drops to the lowest value at 4:00-6:00 AM. At 9:00-12:00 AM, the temperature grows fast and at 4:00-6:00 PM it drops fast. With the increase of asphalt pavement depth, the variation extent and rate of internal temperature decrease gradually and correspondingly, the time to reach peaks or troughs has some delays. The internal temperature of asphalt pavement varies with air temperature and keeps the same change trend with season change. The lowest temperature of asphalt pavement in the whole year appears at the beginning of January and grows gradually afterwards.
Original languageEnglish
JournalJiaotong Yunshu Gongcheng Xuebao/Journal of Traffic and Transportation Engineering
Volume14
Issue number2
Publication statusPublished - 1 Jan 2014

Keywords

  • Asphalt pavement
  • Fiber bragg grating temperature sensor
  • Temperature field
  • Temperature modification
  • Temperature sensitivity

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Automotive Engineering

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