Asphalt mixture specimens, prepared with different binders (neat and SBS polymer modified) and gradations, were sinusoidally loaded in strain control mode, with a rest period being introduced at the end of each loading period.
For this purpose asphalt mixture specimens for both asphalt base and wearing courses were prepared in the laboratory.
The industrial X-ray CT scanning was performed on laboratory prepared open-graded and gap-graded mixture specimens.
The recycled asphalt pavement (RAP) content was set as 25%, and the asphalt mixture specimens were produced in the laboratory.
Two binders (emulsified asphalt and cement) and six contents were utilized to prepare the mixture specimens.
Distilled water, saturated MgCl2 solution, saturated NaBr solution, and saturated KCl solution were stored in containers to provide the RH level of 100%, 36.5%, 62%, and 87%, respectively, under the asphalt mixture specimens that were sealed on top of these containers.
Different rolling times (10, 12, 14, 16, 18, 20, 22, and 24 round-trips) were selected for molding asphalt rubber mixture specimens at uniform temperature (180 °C).
In terms of percent residual properties, control mixture specimens performed better than filler additive specimens for all heating cycles.
The early-age stress development of uniaxially restrained cementitious mixture specimens is profoundly influenced by the overt early-age relaxation effect, such that the compressive stress is significantly reduced and tensile stress develops before shrinkage begins.
Overall, the predicted dynamic modulus and phase angle from 2D and 3D micromechanical models were compared favorably with lab test data of the asphalt mixture specimens.
