The present work aimed to study the effect of aging on asphalt–rubber system after 12 month of the preparation process.
The rheological properties of Qaiyarah asphalt were improved with using reclaimed rubber tires treated with anhydrous aluminium
chloride. The reclaimed rubber tire samples in 0.5 and 1.0 % of the total amount of the asphalt (the amount of used anhydrous aluminium
chloride catalyst was 0.06, 0.12, 0.25, 0.5, 1 %, respectively) were added to Qaiyarah asphalt sample. The reaction components were
introduced into a microwave oven operating at 360 W power for 5, 10 and 15 minutes, respectively. The rheological properties including
ductility, penetration, softening point and penetration index were measured before and after aging experiments. It was found that the
modified asphalt exposed to atmospheric conditions has lower damage in comparison with untreated one and the longer treatment time was
used the less crack and the larger resistance were achieved.
Key words: asphalt; rheological properties; effect of aging; microwave treatment; anhydrous aluminium chloride
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