MATHEMATICAL MODEL FOR PREDICTING MOISTURE MOVEMENT IN PAVEMENT SYSTEMS

A comprehensive moisture model for predicting moisture conditions in pavement systems, based on the Philip and de Vries equations for nonisothermal moisture movement and heat conduction, was developed. By using numerical methods, the implicit finite difference approximations to the moisture movement and heat-transfer equations were programmed for computer solution. Validation studies indicated that the moisture model could be used to accurately predict isothermal moisture conditions in pavement systems. The model was also used to show the relative influence of nonisothermal conditions on pavement moisture content. The model was applicable to a wide range of boundary conditions and could be used with climatic input data to predict the moisture-temperature regime in pavement systems. /Author/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1976/612/612-007.pdf
• Record URL:
  https://scholar.google.com/scholar_lookup?title=MATHEMATICAL+MODEL+FOR+PREDICTING+MOISTURE+MOVEMENT+IN+PAVEMENT+SYSTEMS&author=B.+Dempsey&author=A.+Elzeftawy&publication_year=1976
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309025885
• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Subsurface Drainage and Frost Action. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Dempsey, Barry J
  • Elzeftawy, Atef
• Publication Date: 1976

Media Info

• Media Type: Print
• Features: Figures; References;
• Pagination: pp 48-55
• Monograph Title: Subsidence over mines and caverns, moisture and frost actions, and classification
• Serial:
  • Transportation Research Record
  • Issue Number: 612
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Climate; Computer programs; Forecasting; Heat transfer; Mathematical models; Moisture content; Motion; Pavements
• Uncontrolled Terms: Moisture movement
• Subject Areas: Geotechnology; Highways; Pavements;

Filing Info

• Accession Number: 00158159
• Record Type: Publication
• ISBN: 0309025885
• Files: TRIS, TRB
• Created Date: Sep 28 1977 12:00AM