Local Calibration of EICM Using Measured Temperature Gradients and Numerical Analysis

Due to the daily and seasonal fluctuation of temperature gradients, accurate temperature gradients under local climatic conditions are imperative to correctly predict the performance of portland cement concrete (PCC) pavements. In this study, temperature sensors were installed at various depths (0-, 6.4-, 12.8-, 19.2-, and 25.6-cm) in a PCC pavement section to monitor temperature gradients. Based on the measured daily and seasonal temperature data, correlations between air temperature and surface temperature, as well as surface temperature and slab temperature difference, were developed. A finite element analysis was performed to simulate the temperature variation in a PCC pavement, and the analysis results were compared to the field measurement. A local calibration of the enhanced integrated climatic model (EICM) was conducted by comparing the field-measurements with the EICM-predicted temperature gradients. The conclusion demonstrated that surface temperature, rather than air temperature, would better predict temperature gradient in PCC pavements for the input data in EICM.

• Record URL:
  https://doi.org/10.6135/ijprt.org.tw/2015.8(4).259
• Record URL:
  http://www.ijprt.org.tw/reader/pdf.php?id=491
• 
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/19966814
• Supplemental Notes:
  • Abstract used by permission of publisher.
• Authors:
  • Chung, Yoonseok
  • Shin, Alex Hak-Chul
• Publication Date: 2015-7

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; Photos; References; Tables;
• Pagination: pp 259-266
• Serial:
  • International Journal of Pavement Research and Technology
  • Volume: 8
  • Issue Number: 4
  • Publisher: Chinese Society of Pavement Engineering
  • ISSN: 1996-6814
  • EISSN: 1997-1400
  • Serial URL: http://www.ijprt.org.tw/index.php
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Atmospheric temperature; Concrete pavements; Finite element method; Mathematical prediction; Surface temperature; Temperature gradients
• Identifier Terms: Enhanced Integrated Climatic Model
• Uncontrolled Terms: Field measurements; Local conditions
• Subject Areas: Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 01575057
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 18 2015 11:15AM