To model the behavior of a flexible pavement under real-world settings, a laboratory examination of flexible pavement was conducted utilizing samples of asphalt and concrete. The goal of the study was to determine the changes that would occur in the elastic and stiffness (shear) modulus of flexible pavement under conditions of rising temperature (thermal effect). The work is important because the stiffness and stresses of the pavement must be determined for proper mechanistic design of flexible pavement. However, only elastic and rigidity modulus stiffness was considered for the purposes of the current study. As the temperature disparity increased from 20 to 60 degrees Celsius, samples were prepared for three separate traffic classifications. The obtained results showed that the viscosity of the binder (asphalt cement) is considerably lowered with increasing temperature, consequently diminishing cohesiveness of the composite mix for all kinds of traffic taken into consideration. Additionally, the decrease in viscosity had a detrimental impact on the stiffness (bonding of asphalt cement with aggregates) behavior of the pavement, which in turn had a direct impact on the decline in the pavement's elastic and rigidity moduli for all categories of traffic under consideration.

asphalt concrete,, elastic modulus, rigidity modulus, temperature