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EVALUATION OF STRIPPING FOR ASPHALT CONCRETE MIXTURES USING ACCELERATED TESTING METHODS.
| 题名： | EVALUATION OF STRIPPING FOR ASPHALT CONCRETE MIXTURES USING ACCELERATED TESTING METHODS. |
| 作者： | Pan-C; White-TD |
| 关键词： | ASPHALTIC-CONCRETE; STRIPPING-; LABORATORY-TESTS; AASHTO-T-283; WHEEL-TRACKING-DEVICE; WET-CONDITIONS; DRY-CONDITIONS; RUTTING-; TEMPERATURE-; LIMESTONES-; DOLOMITE-; TEST-RESULTS |
| 摘要： | A laboratory study was conducted to determine the water sensitivity and rutting potential of asphalt mixtures. The two major tests included in the study were AASHTO T-283 and a laboratory wheel tracking device. AASHTO T-283 has been adopted in the Superpave system for evaluating mixture-stripping potential. The laboratory wheel tracking device was designed and fabricated to represent conditions associated with stripping, that is, moisture, high temperature, and a moving wheel load. Tests can be conducted with a hot and wet or a hot and dry environment. The objective of the study was to evaluate factors influencing bituminous mixture stripping potential. The laboratory wheel tests can simulate mixture stripping conditions as well as pavement loadings. Rutting potential with and without stripping in hot-wet and in hot-dry environments, respectively, can be determined independently. The difference in rutting for the two environmental conditions indicates the magnitude of rutting associated with stripping. Test results show the potential for the wheel tracking device to evaluate the rutting and stripping of asphalt mixtures under various temperature and moisture conditions. In a comparison of two Indiana No. 11 surface mixtures, limestone and dolomite, the limestone mix has a lower susceptibility to rutting than that of the dolomite mix at 50 and 60 deg C. Moisture damage was shown to occur over a range of temperatures from room temperature to 60 deg C. |
| 总页数： | Transportation Research Record. 1998. (1630) pp98-105 (3 Phot., 5 Fig., 7 Tab., 8 Ref.) |
| 报告类型： | 科技报告 |
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