Temperature and Curling Measurements on Concrete Pavement

Curling generally results from the temperature differential across the concrete slab thickness. Curling induces stresses in the pavement slab that may contribute to early-age concrete cracking. This study deals with the field measurement of temperature and curling on a newly built jointed plain concrete pavement. The pavement section consisted of a 12-inch concrete slab, 4-inch bound drainable base, and 6-inch limetreated subgrade. Temperature data was collected at five different depth locations across the thickness of the concrete slab with the digital data loggers embedded in the slabs. Curling was measured on five different days in the summer and fall with a simple setup. The results show that both upward and downward curling increase as the temperature differential increases. The magnitude of curling deflection resulting from a particular positive temperature differential is slightly higher than that resulting from the same negative temperature differential value. The in situ curling can be simulated with a properly built finite element model. Since temperature differential has a significant influence on curling, the effect of curling can be mitigated at an early age of pavement concrete with proper measures, such as enhanced curing.

• Record URL:
  http://www.ctre.iastate.edu/pubs/midcon2005/index.htm
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780965231084
• Corporate Authors:

  Iowa State University, Ames

  Center for Transportation Research and Education
  2711 South Loop Drive, Suite 4700
  Ames, IA  United States  50010-8664
• Authors:
  • Siddique, Zahidul Q
  • Hossain, Mustaque
  • Meggers, Dave
• Conference:
  • The 2005 Mid-Continent Transportation Research Symposium
  • Location: Ames Iowa, United States
  • Date: 2005-8-18 to 2005-8-19
• Publication Date: 2005

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References;
• Pagination: 12p
• Monograph Title: Proceedings of the 2005 Mid-Continent Transportation Research Symposium

Subject/Index Terms

• TRT Terms: Age; Concrete pavements; Concrete slab track; Curing agents; Curling; Data logging; Field tests; Joints; Measurement; Subgrade (Pavements); Temperature
• Subject Areas: Design; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I32: Concrete;

Filing Info

• Accession Number: 01004252
• Record Type: Publication
• ISBN: 9780965231084
• Files: TRIS
• Created Date: Sep 30 2005 8:12AM