Abstract
Normal 0 The present work was aimed for 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 Watt 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.
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