Research Article
Effect of Blending Degree between Virgin and Aged Binder on Pavement Performance of Recycled Asphalt Mixture with High RAP Content
| | RAP content (%) | DOB (%) | Activated RAP binder (%) | Virgin binder (%) | Rejuvenator (%) | Mineral filler (%) | Total free binder (%) |
| | 30/40/50 | 100 | 1.32/1.76/2.20 | 3.01/2.55/2.09 | 0.07/0.09/0.11 | 5.33/5.19/4.98 | 4.40/4.40/4.40 | | 90 | 1.19/1.58/1.98 | 3.01/2.55/2.09 | 0.07/0.09/0.11 | 5.33/5.19/4.98 | 4.27/4.22/4.18 | | 80 | 1.06/1.41/1.76 | 3.01/2.55/2.09 | 0.07/0.09/0.11 | 5.33/5.19/4.98 | 4.14/4.05/3.96 | | 70 | 0.92/1.23/1.54 | 3.01/2.55/2.09 | 0.07/0.09/0.11 | 5.33/5.19/4.98 | 4.00/3.87/3.74 |
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Note. The “/” is used to separate the values of each composition of mastic at 30%, 40%, and 50% RAP content.
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