Accounting for Temperature Susceptibility of Asphalt Stiffness When Designing Bonded Concrete Overlays of Asphalt Pavements
Publication: Journal of Transportation Engineering
Volume 142, Issue 10
Abstract
A bonded concrete overlay of asphalt (BCOA), also known as whitetopping, is a thin concrete overlay placed upon a distressed asphalt pavement. The asphalt-resilient modulus is kept constant in current BCOA design procedures. This practice results in an underestimation of the damage as compared to when the hourly temperature variation of the asphalt is considered. The framework to establish an equivalent asphalt modulus involves generating a database of hourly middepth asphalt temperatures. This database should include hourly temperatures for different BCOA structures and a large range of geographical locations representing different climatic conditions. The hourly middepth asphalt temperatures are then used to generate hourly asphalt moduli using master curves. Through fatigue equivalency, the equivalent asphalt moduli are calculated for each month. In order to establish the relationship between the asphalt modulus and middepth temperature, the United States was divided into seven different zones according to their annual mean ambient temperatures. For each zone, models for predicting adjustment factors were developed for the asphalt modulus. Designers can calculate the monthly asphalt stiffness over the design life using the adjustment factor and reference month stiffness regression models. This asphalt stiffness is then corrected for aging and fatigue using the models incorporated into the AASHTO Pavement ME program. The methodology presented here has been incorporated into the recently developed BCOA mechanistic-empirical design and analysis procedure.
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Acknowledgments
The authors would like to thank the Iowa, Kansas, Minnesota, Missouri, Mississippi, New York, South Dakota, North Carolina, Pennsylvania, and Texas Departments of Transportation. These states participated in the FHWA Pooled Fund Study TPF 5-165 under which this work was performed.
References
ACI (American Concrete Institute). (2011). “Building code requirements for structural concrete.” ACI 318-11, Farmington Hills, MI.
ARA (Applied Research Associates). (2004). “Guide for mechanistic-empirical design of new and rehabilitated pavement structures.”, Transportation Research Board, Washington, DC.
ASTM. (2009). “Standard viscosity-temperature chart for asphalts.” ASTM D2493, West Conshocken, PA.
Inge, E. H. J., and Kim, Y. R. (1995). “Prediction of effective asphalt layer temperature.” Transp. Res. Rec., (1473), 93–100.
Janssen, D. J., and Snyder, M. B. (2000). “The temperature-moment concept for evaluating pavement temperature data.” J. Infrastruct. Eng., 81–83.
Kim, Y. R., Hibbs, B. O., and Lee, Y. C. (1995). “Temperature correction of deflections and backcalculated AC moduli.” Transp. Res. Rec., (1473), 55–62.
Larson, G., and Dempsey, B. (2003). “Enhanced integrated climatic model version.” Univ. of Illinois, Urbana, IL.
Li, Z., Dufalla, N., Mu, F., and Vandenbossche, J. M. (2013). “Bonded concrete overlay of asphalt pavements mechanistic-empirical design guide (BCOA-ME)—Theory manual.” Univ. of Pittsburgh, Pittsburgh.
Li, Z., and Vandenbossche, J. M. (2013). “Redefining the failure mode for thin and ultra-thin whitetopping with a () joint spacing.” Transp. Res. Rec., (2368), 133–144.
Lukanen, E., Stubstad, R., and Briggs, R. (2000). “Temperature predictions and adjustment factors for asphalt pavement.”, McLean, VA.
Mu, F., and Vandenbossche, J. M. (2010). “Development of a rational mechanistic-empirical based design guide for thin and ultrathin whitetopping—Task 2: Evaluate existing performance prediction/damage accumulation and structural response models.” Federal Highway Administration (FHWA), Univ. of Pittsburgh, Pittsburgh.
NOAA (National Oceanic and Atmospheric Administration). (2010). “Annual mean daily average temperature.” 〈http://cdo.ncdc.noaa.gov/climaps/temp0313.pdf〉 (Jan. 20, 2010).
Pavement Systems LLC. (2005). “A superpave binder selection program.” Federal Highway Administration Asphalt Team, Bethesda, MD.
Roesler, J., Bordelon, A., Ioannides, A., Beyer, M., and Wang, D. (2008). “Design and concrete material requirements for ultra-thin whitetopping.”, Illinois Center for Transportation, Rantoul, IL.
Sheehan, M. J., Tarr, S. M., and Tayabji, S. (2004). “Instrumentation and field testing of thin whitetopping pavement in Colorado and revision of the existing Colorado thin whitetopping procedure.”, Colorado Dept. of Transportation, Denver.
Tarr, S. M., Sheehan, M. J., and Okamoto, P. A. (1998). “Guidelines for the thickness design of bonded whitetopping pavement in the State of Colorado.”, Colorado Dept. of Transportation, Denver.
Titus-Glover, L., Mallela, J., Darter, M. I., Voigt, G., and Waalkes, S. (2005). “Enhanced portland cement concrete fatigue model for streetpave.” Transp. Res. Rec., (1919), 29–37.
Vandenbossche, J. M., Dufalla, N., and Li, Z. (2016). “Bonded concrete overlay of asphalt mechanistic-empirical design procedure.” Int. J. Pavement Eng., 1–12.
Wu, C. L., Tarr, S. M., Refai, T. M., Nagai, M. A., and Sheehan, M. J. (1998). “Development of ultra-thin whitetopping design procedure.”, Portland Cement Association, Skokie, IL.
Information & Authors
Information
Published In
Journal of Transportation Engineering
Volume 142 • Issue 10 • October 2016
Copyright
© 2016 American Society of Civil Engineers.
History
Received: May 15, 2015
Accepted: Feb 5, 2016
Published online: May 23, 2016
Published in print: Oct 1, 2016
Discussion open until: Oct 23, 2016
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