| Title | Temperature Prediction and Adjustment Procedures for Asphalt Concrete Pavements |
|---|---|
| Record ID | 11132 |
| Source | Series: Product Brief |
| Corporate Creator | United States. Federal Highway Administration |
| Publisher | Turner-Fairbank Highway Research Center |
| Publication Date | 20010200 |
| Language | English |
| Abstract | Deflection testing is used to evaluate a variety of pavement characteristics, including axle or vehicle load capacity, structural life, and uniformity. Deflection results from all pavements are dependent on seasonal variations that affect the underlying aggregate and subgrade. The results from asphalt pavements are also dependent on the temperature of the asphalt. To effectively analyze deflection results, they must be adjusted to account for seasonal and temperature variations. Over the years, a number of methods have been developed to measure the asphalt temperature and to adjust the deflection results for the effects of temperature. Deflection equipment and analysis methodologies have also continued to improve over the years, but the study of the effects of temperature on the deflection of asphalt pavement has generally been limited in scope or location. To address this issue, the Long Term Pavement Performance (LTPP) program developed a model for predicting the temperature within an asphalt layer from surface temperature data collected during routine deflection testing, along with procedures to adjust deflection testing results for temperature. The temperature prediction model and adjustment procedures were then used as the basis for proposed standards that have been submitted to the American Association of State Highway and Transportation Officials (AASHTO) Subcommittee on Materials for possible adoption. |
| Rosap ID | dot:14510 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/14510 |
| TRT Terms | Asphalt concrete pavements; Temperature; Adjustment factors; Deflection tests |
| General Subjects | Prediction |
| Classification | NTL - HIGHWAY/ROAD TRANSPORTATION - Pavement Management and Performance |
| Geographical Coverage |
United States |
| OCLC | 54777595 |
| Report Number | FHWA-RD-01-081 |
| Resource type | Brief |
| URL | https://ntlrepository.blob.core.windows.net/lib/11000/11100/11132/01081.pdf |
| Format | |
| Database | NTL Digital Repository |