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Geomechanics and Engineering
  Volume 8, Number 2, February 2015 , pages 133-152

Modeling of transient temperature distribution in multilayer asphalt pavement
Bagdat B. Teltayev and Koblanbek Aitbaye

    Mathematical model has been developed for determination of temperature field in multilayer pavement and subgrade, which considers transfer of heat by conduction and convection, receiving of heat from total solar radiation and atmosphere emission, output of heat due to the emission from the surface of pavement. The developed model has been realized by the finite element method for two dimensional problem using two dimensional second order finite element. Calculations for temperature field have been made with the programme realized on the standard mathematical package MATLAB. Accuracy of the developed model has been evaluated by comparison of temperatures, obtained theoretically and experimentally. The results of comparison showed high accuracy of the model. Long-term calculation (within three months) has been made in pavement points in accordance with the data of meteorological station for air temperature. Some regularities have been determined for variation of temperature field.
Key Words
    asphalt pavement; finite element method; transient temperature distribution
Kazakhstan Highway Research Institute, 2A, Nurpeissov Street, Almaty, 050061, Republic of Kazakhstan.

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