Development and Evaluation of Portable Device for Measuring Curling and Warping in Concrete Pavements

The temperature and moisture variations across the depth of the Portland cement concrete (PCC) pavements result in a unique deflection behavior that has been recognized as curling and warping of the pavements since mid-1920. The repeated slab curvature changes due to curling and warping, when combined with traffic loading, can accelerate fatigue failures including top-down and bottom-up transverse, longitudinal, and corner cracking. It is of paramount importance to measure the actual magnitude of curling and warping taking place in concrete pavements in order to develop performance measures and critical threshold magnitudes as well as gain a better understanding of their relationship to diurnal and seasonal temperature/moisture changes and long-term pavement performance. Although several approaches and devices have been proposed for measuring curling and warping for in-service concrete pavements, they have certain limitations that inhibit their use for routine inspection for quality control (QC) and quality assurance (QA) of concrete pavements. The primary objective of the proposed research is to develop an economical and simple device for measuring curling and warping in concrete pavements with accuracy comparable to or better than the existing methodologies. To meet this objective, the proposed curling measurement device will be portable and easy to operate with just one person, and will provide reliable measurements. The first-generation crude prototype of the proposed device has already been developed to support our ongoing research efforts at Iowa State University (ISU), focusing on investigating the impact of curling and warping on concrete pavements. This Midwest Transportation Center (MTC) proposal focuses on development of a standardized curling and warping measurement device and test procedure for routine use by improving the first generation crude prototype through technical requirements identified from both the literature and field evaluations.

• Record URL:
  http://www.intrans.iastate.edu/mtc/index.cfm/research/project/project/102136685
• Supplemental Notes:
  • Iowa Department of Transportation ($119,997.00) USDOT/OST-R ($75,000.00) Total: $194,997.00

Language

• English

Project

• Status: Completed
• Funding: $194997.00
• Contract Numbers:

  DTRT13-G-UTC37

• Sponsor Organizations:

  Midwest Transportation Center

  Iowa State University
  2711 S Loop Drive, Suite 4700
  Ames, IA  United States  50010-8664

  Department of Transportation

  Office of the Assistant Secretary for Research and Technology
  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590

  Iowa Department of Transportation

  800 Lincoln Way
  Ames, IA  United States  50010
• Performing Organizations:

  Midwest Transportation Center

  Iowa State University
  2711 S Loop Drive, Suite 4700
  Ames, IA  United States  50010-8664
• Principal Investigators:

  Steffes, Robert

  Ceylan, Halil

• Start Date: 20140701
• Expected Completion Date: 0
• Actual Completion Date: 20150603
• Source Data: RiP Project 39362

Subject/Index Terms

• TRT Terms: Concrete pavements; Curling; Fatigue (Mechanics); Measurement; Pavement performance; Performance measurement; Quality assurance; Quality control; Traffic loads
• Subject Areas: Design; Highways; Maintenance and Preservation; Pavements; Vehicles and Equipment;

Filing Info

• Accession Number: 01560546
• Record Type: Research project
• Source Agency: Midwest Transportation Center
• Contract Numbers: DTRT13-G-UTC37
• Files: UTC, RIP
• Created Date: Apr 16 2015 1:01AM