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Temperature Predictions and Adjustment Factors for Asphalt
Pavement
| 题名： | Temperature Predictions and Adjustment Factors for Asphalt Pavement |
| 作者： | Erland O. Lukanen, Richard Stubstad, and Robert Briggs |
| 关键词： | Long Term Pavement Performance, LTPP, Seasonal Monitoring Program, SMP, temperature, temperature adjustment, backcalculated modulus, thermistor, fallingweight deflectometer, FWD. |
| 摘要： | This report presents the results of an analysis of the response that deflections and backcalculated asphalt moduli have to the pavement temperature. The study used deflection and temperature data from 40 sites monitored in the Seasonal Monitoring Program of the Long Term PavementPerformance (LTPP) program. The report presents improved methods of estimating the temperature within an asphalt pavement based on the measurement procedures used for the LTPP program. The data necessary to estimate the temperature within the asphalt included the surface temperature, time of day, depth below the surface, and the average air temperature from the previous day. Backcaiculation of the asphalt modulus from the deflection data of the 40 sites was related to pavement temperature, and a method of estimating what the modulus of the asphalt would be at different temperatures is presented. Deflection and deflection basin shape factor response to temperature was also evaluated, resulting in relationships foreach of the items evaluated with pavement temperature. Items evaluated include the deflection underthe load plate (center sensor), center sensor minus offset sensors, center sensor divided by offset sensors, AREA factor, and the F-1 factor. The relationships were then used to develop procedures for adjusting for the effects of temperature. |
| 报告类型： | 科技报告 |
相关文献
- TEMPERATURE PREDICTIONS AND ADJUSTMENT FACTORS FOR ASPHALT PAVEMENT.
- TEMPERATURE CORRECTION OF BACKCALCULATED MODULI AND DEFLECTIONS USING LINEAR VISCOELASTICITY AND TIME-TEMPERATURE SUPERPOSITION.
- QUANTIFYING THE EFFECT OF PAVEMENT PERFORMANCE CHARACTERISTICS USING PARTIAL DERIVATIVES.
- Temperature Adjustment of Dynamic Deflection Measurements on Asphalt Concrete Pavements; Final rept
- PREDICTION OF EFFECTIVE ASPHALT LAYER TEMPERATURE.
- EFFECT OF TEMPERATURE AVERAGING ON PREDICTED PAVEMENT LIFE.
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