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ASPHALT-RUBBER OVERLAY ON RUBBLIZED CONCRETE PAVEMENT ON I-135.
| 题名： | ASPHALT-RUBBER OVERLAY ON RUBBLIZED CONCRETE PAVEMENT ON I-135. |
| 作者： | Fager-GA |
| 关键词： | ASPHALT-RUBBER; OVERLAY-COURSE; RUBBLIZED-CONCRETE-PAVEMENTS; TEST-SECTIONS; OVERLAY-THICKNESS; WET-PROCESS; COSTS-; SCRAP-TIRES; PERMEABILITY-; PAVEMENT-PERFORMANCE |
| 摘要： | During 1993 and 1994, the Kansas Department of Transportation constructed a 15.25-km full-depth asphalt-rubber project on I-135. Three test sections were finished in 1994 along with one control section in 1995. The test sections consisted of both a thick and thin asphalt-rubber section over rubblized portland cement concrete pavement (PCCP) and a completely reconstructed asphalt-rubber section. The control section was built over rubblized PCCP to the same thickness as the thick asphalt-rubber section. Approximately 172,000 metric tons of asphalt-rubber were produced using the wet (reacted) process. Data indicated that the asphalt-rubber mix cost approximately 50% more than the asphalt-only mix. Reducing the thickness of the asphalt-rubber from 225 mm to 180 mm would allow the cost to become equal to the asphalt-only control section. Equal performance of the reduced thickness section or longer performance from the 225-mm asphalt-rubber section would be a cost-effective method of using tire rubber in asphalt pavements. Test data indicate a stable mix and adequate thermal characteristics but high permeabilities. Performance after 6 winter months under traffic indicates no raveling, rutting, flushing, cracking, or moisture damage. |
| 总页数： | Transportation Research Record. 1996. (1543) pp71-78 (6 Fig., 6 Tab., 2 Ref.) |
| 报告类型： | 科技报告 |
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