Extraction of pavement and soil thermal diffusivity from measured temperature times series
Loading...
View/Download File
Persistent link to this item
Statistics
View StatisticsJournal Title
Journal ISSN
Volume Title
Title
Extraction of pavement and soil thermal diffusivity from measured temperature times series
Published Date
2006-09
Publisher
St. Anthony Falls Laboratory
Type
Report
Abstract
This report describes several methods to extract pavement thermal diffusivity from pavement temperature measurements at two or more depths. Two methods use analytic solutions for heat transfer in an infinite solid to relate the attenuation of diurnal temperature change with depth to thermal diffusivity. The first approach considers the surface temperature forcing to be a simple sinusoidal function with a period of one day. The second method considers the surface temperature forcing to be a general periodic signal that can be decomposed with a Fourier series. The accuracy of these two methods are limited by non-homogeneous nature of pavement/subgrade/soil systems. The third method uses a one-dimensional finite difference heat transfer model to extract thermal diffusivity from measured pavement temperature. This method requires more computational effort, but can take into account the variation in thermal diffusivity between the pavement and underlying layers.
Keywords
Description
Related to
Replaces
License
Collections
Series/Report Number
Funding information
Minnesota Department of Transportation (MNDOT)
Isbn identifier
Doi identifier
Previously Published Citation
Suggested citation
Herb, William R.; Marasteanu, Mihai; Stefan, Heinz G.. (2006). Extraction of pavement and soil thermal diffusivity from measured temperature times series. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/118083.
Content distributed via the University Digital Conservancy may be subject to additional license and use restrictions applied by the depositor. By using these files, users agree to the Terms of Use. Materials in the UDC may contain content that is disturbing and/or harmful. For more information, please see our statement on harmful content in digital repositories.