In the recent years an important trend has been established towards
the use of heavier highway md aircraft wheel loading. The high axle
loads lead to excessive permanent deformation in asphalt pavements,
especially at high temeratures in hot regions.
The main objective of this research is to study the effect of test
temperatures on the creep behavior of asphalt concrete mixtures.
Dynamic creep test was used for this purpose. Creep strain, mix
stiflkess modules and rate of deformation were obtained as a function
of axial applied stress and/or test temperature.
It is concluded that the creep strain, rate of deformation 'and mix
stiffness modules depends upon the bitumen stifhess, and influenced
proportionally by variation of test temperature.