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| Proportional design with central plant hot-mix recycled asphalt mixes |
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DONG Yan1,XU Jian-hua2
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(1. Shengli College, China University of Petroleum, Dongying 257097, Shandong Province, China;2. Shandong Uhuayi Group Company，Dongying 257400, Shandong Province, China)
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| Abstract: |
| Experimental analysis of recovered asphalt and sieve analysis of recovered aggregates were carried out for recovered asphalt pavements. The new asphalt and the rejuvenator were added into old asphalt，and the object viscosity of recycled asphalt is about 120 Pa 8。 In the test of pavement design with hot recycled asphalt mixes, the content of recovered asphalt pavement is 40%，and the recovered asphalt pavement was added in new aggregates，new asphalt and rejuvenator. They were mixed in the certain temperature at central plant. The oil content of recycled asphalt mixes is the local experience value of 4. 8% (to mixes). The Marshall test results show that the Marshall stability of the recycled asphalt mixes is larger than 8. 2 kN and the other parameters of Marshall tests are satisfied to specification request. |
| Key words: Marshall tests asphalt mixes hot-mix recycling sieve analysis |
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