Advancing Profile-Based Curl-and-Warp Analysis Using LTPP Profile Data
This report is focused on predicting and quantifying curling and warping of jointed portland cement concrete pavements. Researchers used the comprehensive research-quality datasets available through the Long-Term Pavement Performance (LTPP) program, supplemented by additional datasets collected by other Federal Highway Administration studies. The analyzed test sections are part of either the Specific Pavement Studies-2 or General Pavement Studies-3 LTPP experiments. Researchers assessed the impact of curl and warp on fluctuations of the International Roughness Index (IRI); generalized IRI and pseudostrain gradient (PSG) relationships to less-robust datasets (i.e., datasets typically available to State highway agencies); correlated PSG to environmental factors, falling weight deflectometer results, and measured roughness; and examined the implications of short- and long-term changes in IRI in the appearance of areas of localized roughness. Researchers also completed a literature review describing work on profile-based estimates of curl and warp and the influence of curl and warp on the IRI. Theoretical and analytical modeling showed that the original hypothesis of a direct relationship between PSG and IRI was valid, but that the assumption of a linear relationship was incorrect. Researchers proposed an alternative model that produced a high correlation between IRI and PSG on field data with diurnal and seasonal changes in curl and warp.
- Record URL:
- Record URL:
-
Corporate Authors:
1885 S. Arlington Ave. Suite 111
Reno, NV United States 89509Federal Highway Administration
Office of Infrastructure Research and Development
6300 Georgetown Pike
McLean, VA United States 22101 -
Authors:
- Karamihas, S M
- 0000-0002-7480-3952
- Punnackal, T
- Dufalla, N
- Senn, K
- Publication Date: 2023-4
Language
- English
Media Info
- Media Type: Digital/other
- Edition: Final Report
- Features: Appendices; Figures; References; Tables;
- Pagination: 483p
Subject/Index Terms
- TRT Terms: Concrete pavements; Curling; Mathematical models; Pavement joints; Roughness; Warpage
- Identifier Terms: International Roughness Index; Long Term Pavement Performance (LTPP) Program
- Subject Areas: Highways; Maintenance and Preservation; Pavements;
Filing Info
- Accession Number: 01909267
- Record Type: Publication
- Report/Paper Numbers: FHWA-HRT-20-066
- Contract Numbers: DTFH6114C00015
- Files: NTL, TRIS, USDOT
- Created Date: Feb 22 2024 4:13PM