MEDEIROS, F. F.; MEDEIROS, Felipe Fernandes.
Resumo:
In the design of pavements, the prediction of the tensions and deformations from the
traffic and the climate that act on the pavement structure began to be made by calculation
methods that take into account the working forces. In the mechanistic dimensioning
methods, the resilient modulus of the asphalt coating is usually used as a calculation
parameter in the sizing of pavements. The objective of this work was to verify the
behavior of 2 (two) types of asphalt mixtures using CAP 50/70 and AMP 55/75 evaluating
the mechanical properties of the mixtures were made diametral tensile strength (RT) and
resilience modulus ( MR). In the MR assay 6 (six) different temperatures (5°C, 10°C,
15°C, 25°C, 30°C and 45°C) were used. The results showed a higher RT for 55/75 AMP
compared to CAP 50/70. The increase in temperature caused a decrease in MR in both
the CAP 50/70 and the AMP 55/75. The tensile strength of the asphalt mixtures made
with AMP 55/75 is 50% greater than the asphalt mixtures made with CAP 50/70;